power system harmonics extraction




J. Das C. Power System Harmonics and Passive Filter Designs

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11190.63 руб.
As new technologies are created and advances are made with the ongoing research efforts, power system harmonics has become a subject of great interest. The author presents these nuances with real-life case studies, comprehensive models of power system components for harmonics, and EMTP simulations. Comprehensive coverage of power system harmonics Presents new harmonic mitigation technologies In-depth analysis of the effects of harmonics Foreword written by Dr. Jean Mahseredijan, world renowned authority on simulations of electromagnetic transients and harmonics

Chayan Mehta, Arpita Singh, Rahul Lohiya Analysis of Harmonics Injected by Single Phase Inverter

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1852 руб.
Project Report from the year 2013 in the subject Electrotechnology, Sir Padampat Singhania University, course: Electronics and Communication, language: English, abstract: The power electronics device which converts DC power to AC power at required output voltage and frequency level is known as inverter. As we have found that different inverters are used for different equipment's so in our project titled " Analysis of Harmonics injected by Single phase Inverter" , we are analyzing the harmonics present in single phase voltage source inverter using different loads (R,RL and RLC).We are analyzing Harmonics using MATLAB tools like Scope for harmonics and Simulink powergui for analysis of FFT of different Signals.

A. Sattar Ahmed Leaks and Blockages in Pipelines

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9464 руб.
A new technique is developed utilizing the system pressure frequency response to locate and quantify leaks and blockages. The pressure frequency response is calculated at the downstream valve by the transfer matrix method. It is found that the presence of leaks and blockages alters the shape of the system pressure frequency response, the amplitude of pressure oscillations at even harmonics is increased and the amplitude at the odd harmonics is decreased. The increase in amplitude at the even harmonics is used to detect the location of leaks or blockages based on the leak and blockage frequency. For a simple pipeline, the technique successfully detected blockages up to 30% in size and leaks up to 2% of the mean discharge. Moreover, the computed results are verified by comparing with experimental measurements and those obtained by using the method of characteristics.

Jang Jinbeum, Yoo Yoonjong, Paik Joonki Sensor-Based Auto-Focusing System

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3564 руб.
Robust extraction of features in a severely defocused image is the fundamental problem of a phase-difference autofocusing system. In order to solve this problem, a multi-resolution feature extraction algorithm is proposed. Given the extracted features, the proposed auto-focusing system can provide the ideal focusing position using phase correlation matching. Since the proposed system accurately estimates the phase difference in the out-of-focus blurred image under low illumination, it can provide fast, robust auto focusing.

Rohit Repalle Performance Evaluation of Multilevel Inverter

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6314 руб.
Harmonics is the one of the biggest problems in power quality aspects in the electrical systems.Due to the presence of harmonics the torque produced by the motor doesn't remain constant and core gets heated up which decreases the life span of motor or load. So there is a necessity to reduce the harmonics.Deep analysis of multilevel inverters and harmonics are presented in this book.The main objective of this book is evaluating the multilevel inverter based on total harmonic distortion.In this book a five level inverter has been proposed and analyzed.In this book an attempt has been made and succeeded to overcome the losses due to harmonics in five level inverter.The experimental results using simulation software are presented.

Eric Laboure Electromagnetic Compatibility in Power Electronics

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11962.39 руб.
Scientists largely attribute the recent deterioration of the electromagnetic environment to power electronics. This realization has spurred the study of methodical approaches to electromagnetic compatibility designs as explored in this text. The book addresses major challenges, such as handling numerous parameters vital to predicting electro magnetic effects and achieving compliance with line-harmonics norms, while proposing potential solutions.

Блок питания be quiet! System Power 9 700W

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4644 руб.

Wei Sun Power System Control Under Cascading Failures. Understanding, Mitigation, and System Restoration

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14255.16 руб.
Offers a comprehensive introduction to the issues of control of power systems during cascading outages and restoration process Power System Control Under Cascading Failures offers comprehensive coverage of three major topics related to prevention of cascading power outages in a power transmission grid: modelling and analysis, system separation and power system restoration. The book examines modelling and analysis of cascading failures for reliable and efficient simulation and better understanding of important mechanisms, root causes and propagation patterns of failures and power outages. Second, it covers controlled system separation to mitigate cascading failures addressing key questions such as where, when and how to separate. Third, the text explores optimal system restoration from cascading power outages and blackouts by well-designed milestones, optimised procedures and emerging techniques. The authors – noted experts in the field – include state-of-the-art methods that are illustrated in detail as well as practical examples that show how to use them to address realistic problems and improve current practices. This important resource: Contains comprehensive coverage of a focused area of cascading power system outages, addressing modelling and analysis, system separation and power system restoration Offers a description of theoretical models to analyse outages, methods to identify control actions to prevent propagation of outages and restore the system Suggests state-of-the-art methods that are illustrated in detail with hands-on examples that address realistic problems to help improve current practices Includes companion website with samples, codes and examples to support the text Written for postgraduate students, researchers, specialists, planners and operation engineers from industry, Power System Control Under Cascading Failures contains a review of a focused area of cascading power system outages, addresses modelling and analysis, system separation, and power system restoration.

Mohamed Ibrahim A. Disturbance Analysis for Power Systems

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13664.01 руб.
More than ninety case studies shed new light on power system phenomena and power system disturbances Based on the author's four decades of experience, this book enables readers to implement systems in order to monitor and perform comprehensive analyses of power system disturbances. Most importantly, readers will discover the latest strategies and techniques needed to detect and resolve problems that could lead to blackouts to ensure the smooth operation and reliability of any power system. Logically organized, Disturbance Analysis for Power Systems begins with an introduction to the power system disturbance analysis function and its implementation. The book then guides readers through the causes and modes of clearing of phase and ground faults occurring within power systems as well as power system phenomena and their impact on relay system performance. The next series of chapters presents more than ninety actual case studies that demonstrate how protection systems have performed in detecting and isolating power system disturbances in: Generators Transformers Overhead transmission lines Cable transmission line feeders Circuit breaker failures Throughout these case studies, actual digital fault recording (DFR) records, oscillograms, and numerical relay fault records are presented and analyzed to demonstrate why power system disturbances happen and how the sequence of events are deduced. The final chapter of the book is dedicated to practice problems, encouraging readers to apply what they've learned to perform their own system disturbance analyses. This book makes it possible for engineers, technicians, and power system operators to perform expert power system disturbance analyses using the latest tested and proven methods. Moreover, the book's many cases studies and practice problems make it ideal for students studying power systems.

Karimi Mazaher, Mokhlis Hazlie Under-Frequency Load Shedding Scheme for Islanded Distribution Network

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9064 руб.
Abnormal conditions such as overload and generator tripping usually result in large excursion of power system frequency, voltage and other system variables. In this case, an effective method to prevent the electric power system from instability, frequency collapse and blackout is an under-frequency load shedding scheme. It is applied in order to maintain stability of the system, when the power system generation fails to supply the increase of load. Load shedding is a common technique to maintain the power system stability by curtailment of partial load in some part of the system. However, the load shedding techniques for an islanded distribution network should be treated differently from the transmission power system. A particular approach of under-frequency load shedding scheme is required for an islanded system which is known to be not as strong as the grid.

Ebrahim Vaahedi Practical Power System Operation

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8228.78 руб.
Power system operation from an operator’s perspective Power systems are operated with the primary objectives of safety, reliability, and efficiency. Practical Power System Operation is the first book to provide a comprehensive picture of power system operation for both professional engineers and students alike. The book systematically describes the operator’s functions, the processes required to operate the system, and the enabling technology solutions deployed to facilitate the processes. In his book, Dr. Ebrahim Vaahedi, an expert practitioner in the field, presents a holistic review of: The current state and workings of power system operation Problems encountered by operators and solutions to remedy the problems Individual operator functions, processes, and the enabling technology solutions Deployment of real-time assessment, control, and optimization solutions in power system operation Energy Management Systems and their architecture Distribution Management Systems and their architecture Power system operation in the changing energy industry landscape and the evolving technology solutions Because power system operation is such a critical function around the world, the consequences of improper operation range from financial repercussions to societal welfare impacts that put people’s safety at risk. Practical Power System Operation includes a step-by-step illustrated guide to the operator functions, processes, and decision support tools that enable the processes. As a bonus, it includes a detailed review of the emerging technology and operation solutions that have evolved over the last few years. Written to the standards of higher education and university curriculums, Practical Power System Operation has been classroom tested for excellence and is a must-read for anyone looking to learn the critical skills they need for a successful career in power system operations.

Graeme Vertigan AC Circuits and Power Systems in Practice

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9647.09 руб.
The essential guide that combines power system fundamentals with the practical aspects of equipment design and operation in modern power systems Written by an experienced power engineer, AC Circuits and Power Systems in Practice offers a comprehensive guide that reviews power system fundamentals and network theorems while exploring the practical aspects of equipment design and application. The author covers a wide-range of topics including basic circuit theorems, phasor diagrams, per-unit quantities and symmetrical component theory, as well as active and reactive power and their effects on network stability, voltage support and voltage collapse. Magnetic circuits, reactor and transformer design are analyzed, as is the operation of step voltage regulators. In addition, detailed introductions are provided to earthing systems in LV and MV networks, the adverse effects of harmonics on power equipment and power system protection. Finally, European and American engineering standards are presented where appropriate throughout the text, to familiarize the reader with their use and application. This book is written as a practical power engineering text for engineering students and recent graduates. It contains more than 400 illustrations and is designed to provide the reader with a broad introduction to the subject and to facilitate further study. Many of the examples included come from industry and are not normally covered in undergraduate syllabi. They are provided to assist in bridging the gap between tertiary study and industrial practice, and to assist the professional development of recent graduates. The material presented is easy to follow and includes both mathematical and visual representations using phasor diagrams. Problems included at the end of most chapters are designed to walk the reader through practical applications of the associated theory.

Carlos Duque Augusto Power Systems Signal Processing for Smart Grids

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10341.97 руб.
With special relation to smart grids, this book provides clear and comprehensive explanation of how Digital Signal Processing (DSP) and Computational Intelligence (CI) techniques can be applied to solve problems in the power system. Its unique coverage bridges the gap between DSP, electrical power and energy engineering systems, showing many different techniques applied to typical and expected system conditions with practical power system examples. Surveying all recent advances on DSP for power systems, this book enables engineers and researchers to understand the current state of the art and to develop new tools. It presents: an overview on the power system and electric signals, with description of the basic concepts of DSP commonly found in power system problems the application of several signal processing tools to problems, looking at power signal estimation and decomposition, pattern recognition techniques, detection of the power system signal variations description of DSP in relation to measurements, power quality, monitoring, protection and control, and wide area monitoring a companion website with real signal data, several Matlab codes with examples, DSP scripts and samples of signals for further processing, understanding and analysis Practicing power systems engineers and utility engineers will find this book invaluable, as will researchers of electrical power and energy systems, postgraduate electrical engineering students, and staff at utility companies.

Shome Subhankar, Bera Rabindra Nath, Sur Samarendra Nath Spread Spectrum Radar based Doppler Extraction using 2P-Power Method

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6027 руб.
In this book we discuss a Spread Spectrum based radar system for car detection in the road and autonomous guidance of vehicles. Basically we have proposed a set of algorithms which lead to the solution of road and vehicle collision using carrier recovery method. One of the proposed techniques is spread spectrum which can improve the reliability of automotive radars. Along with the Radar technologies, we have proposed another algorithm to extract the moving object Doppler frequency using 2P-Power method. This Doppler frequency will help us to get information about the velocity of the vehicle on the road. This SS technology along with the Doppler recovery method adds an additional advantage to our Radar for Intelligent transport system in near future.

Iron Maxwell MW-3036 G (Power 2200 W, system self cleaning, противокапельная system, steam blow)

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1837 руб.

Iron Vitek VT-1215 PK (Power 2400 W, steam blow, system self cleaning, противокапельная system)

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2486 руб.

William Elwood Byerly An Elementary Treatise on Fourier's Series and Spherical, Cylindric, and Ellipsoidal Harmonics. With Applications to Problems in Mathematical Physics

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2214 руб.
First published in 1893, Byerly's classic treatise on Fourier's series and spherical, cylindrical, and ellipsoidal harmonics has been used in classrooms for well over a century. This practical exposition acts as a primer for fields such as wave mechanics, advanced engineering, and mathematical physics.Topics covered include:. development in trigonometric series. convergence on Fourier's series. solution of problems in physics by the aid of Fourier's integrals and Fourier's series. zonal harmonics. spherical harmonics. cylindrical harmonics (Bessel's functions). and more.Containing 190 exercises and a helpful appendix, this reissue of Fourier's Series will be welcomed by students of higher mathematics everywhere.American mathematician WILLIAM ELWOOD BYERLY (1849-1935) also wrote Elements of Differential Calculus (1879) and Elements of Integral Calculus (1881).

Peter Sauer W. Power System Dynamics and Stability. With Synchrophasor Measurement and Power System Toolbox

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10419.59 руб.
Classic power system dynamics text now with phasor measurement and simulation toolbox This new edition addresses the needs of dynamic modeling and simulation relevant to power system planning, design, and operation, including a systematic derivation of synchronous machine dynamic models together with speed and voltage control subsystems. Reduced-order modeling based on integral manifolds is used as a firm basis for understanding the derivations and limitations of lower-order dynamic models. Following these developments, multi-machine model interconnected through the transmission network is formulated and simulated using numerical simulation methods. Energy function methods are discussed for direct evaluation of stability. Small-signal analysis is used for determining the electromechanical modes and mode-shapes, and for power system stabilizer design. Time-synchronized high-sampling-rate phasor measurement units (PMUs) to monitor power system disturbances have been implemented throughout North America and many other countries. In this second edition, new chapters on synchrophasor measurement and using the Power System Toolbox for dynamic simulation have been added. These new materials will reinforce power system dynamic aspects treated more analytically in the earlier chapters. Key features: Systematic derivation of synchronous machine dynamic models and simplification. Energy function methods with an emphasis on the potential energy boundary surface and the controlling unstable equilibrium point approaches. Phasor computation and synchrophasor data applications. Book companion website for instructors featuring solutions and PowerPoint files. Website for students featuring MATLABTM files. Power System Dynamics and Stability, 2nd Edition, with Synchrophasor Measurement and Power System Toolbox combines theoretical as well as practical information for use as a text for formal instruction or for reference by working engineers.

Oleg Wasynczuk Introduction to Electric Power and Drive Systems

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9647.09 руб.
An introduction to the analysis of electric machines, power electronic circuits, electric drive performance, and power systems This book provides students with the basic physical concepts and analysis tools needed for subsequent coursework in electric power and drive systems with a focus on Tesla’s rotating magnetic field. Organized in a flexible format, it allows instructors to select material as needed to fit their school’s power program. The first chapter covers the fundamental concepts and analytical methods that are common to power and electric drive systems. The subsequent chapters offer introductory analyses specific to electric machines, power electronic circuits, drive system performance and simulation, and power systems. In addition, this book: Provides students with an analytical base on which to build in advanced follow-on courses Examines fundamental power conversions (dc-dc, ac-dc and dc-ac), harmonics, and distortion Describes the dynamic computer simulation of a brushless dc drive to illustrate its performance with both a sinusoidal inverter voltage approximation and more realistic stator six-step drive applied voltages Includes in-chapter short problems, numerous worked examples, and end-of-chapter problems to help readers review and more fully understand each topic

Weidong Xiao Photovoltaic Power System. Modeling, Design, and Control

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10646.58 руб.
Photovoltaic Power System: Modelling, Design and Control is an essential reference with a practical approach to photovoltaic (PV) power system analysis and control. It systematically guides readers through PV system design, modelling, simulation, maximum power point tracking and control techniques making this invaluable resource to students and professionals progressing from different levels in PV power engineering. The development of this book follows the author's 15-year experience as an electrical engineer in the PV engineering sector and as an educator in academia. It provides the background knowledge of PV power system but will also inform research direction. Key features: Details modern converter topologies and a step-by-step modelling approach to simulate and control a complete PV power system. Introduces industrial standards, regulations, and electric codes for safety practice and research direction. Covers new classification of PV power systems in terms of the level of maximum power point tracking. Contains practical examples in designing grid-tied and standalone PV power systems. Matlab codes and Simulink models featured on a Wiley hosted book companion website.

Akter Samima, Das Priyanath Modeling and Simulation of various FACTS devices in Power System

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5077 руб.
In this work, performances of Fixed Capacitor Thyristor Controlled Reactor, Static Synchronous Compensator, Thyristor Controlled Series Capacitor, Static Synchronous Series Compensator, Interline Power Flow Controller and Unified Power Flow Controller for power system stability enhancement and improvement of power transfer capability is analyzed. Behavior of a transmission system upon the addition of compensating devices is also studied. The changes in the behavior of the compensators for a change in their parameter values are then obtained and the best rating of compensators to deliver optimum results is found out. The simulation results demonstrate the improvement in the performance of the system for each of the above FACTS controller in terms of power profile and voltage stability. The results are then compared to determine the best controller for a given operating condition.

Jizhong Zhu Optimization of Power System Operation

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10804.74 руб.
Optimization of Power System Operation, 2nd Edition, offers a practical, hands-on guide to theoretical developments and to the application of advanced optimization methods to realistic electric power engineering problems. The book includes: New chapter on Application of Renewable Energy, and a new chapter on Operation of Smart Grid New topics include wheeling model, multi-area wheeling, and the total transfer capability computation in multiple areas Continues to provide engineers and academics with a complete picture of the optimization of techniques used in modern power system operation

Stanley Horowitz H. Power System Relaying

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10727.86 руб.
With emphasis on power system protection from the network operator perspective, this classic textbook explains the fundamentals of relaying and power system phenomena including stability, protection and reliability. The fourth edition brings coverage up-to-date with important advancements in protective relaying due to significant changes in the conventional electric power system that will integrate renewable forms of energy and, in some countries, adoption of the Smart Grid initiative. New features of the Fourth Edition include: an entirely new chapter on protection considerations for renewable energy sources, looking at grid interconnection techniques, codes, protection considerations and practices. new concepts in power system protection such as Wide Area Measurement Systems (WAMS) and system integrity protection (SIPS) -how to use WAMS for protection, and SIPS and control with WAMS. phasor measurement units (PMU), transmission line current differential, high voltage dead tank circuit breakers, and relays for multi-terminal lines. revisions to the Bus Protection Guide IEEE C37.234 (2009) and to the sections on additional protective requirements and restoration. Used by universities and industry courses throughout the world, Power System Relaying is an essential text for graduate students in electric power engineering and a reference for practising relay and protection engineers who want to be kept up to date with the latest advances in the industry.

Gesong Chen Variable Frequency Transformers for Large Scale Power Systems Interconnection. Theory and Applications

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9325.15 руб.
This book is an all-in-one resource on the development and application of variable frequency transformers to power systems and smart grids. It introduces the main technical issues of variable frequency transformers (VFT) systematically, including its basic construction, theory equations, and simulation models. Readers will then gain an in-depth discussion of its control system, operation performance, low frequency power oscillation, and technical economics, before proceeding to practical implementation and future developments. The related concepts of energy revolution, third generation grids, and power system interconnection are discussed as well. The first, comprehensive introduction to variable frequency transformers (VFT) An in-depth look at the construction of VFT, with simulations and applications Demonstrates how to assess the control system and overall system performance Analyses future developments, energy revolution and power system interconnections Variable Frequency Transformers for Large Scale Power Systems is a timely overview of the state of the art for VFT as it is increasingly adopted in smart grids. It is intended for engineers and researchers specializing in power system planning and operation, as well as advanced students and industry professionals of power engineering.

Hassan Bevrani Power System Monitoring and Control

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9183.59 руб.
Power System Monitoring and Control (PSMC) is becoming increasingly significant in the design, planning, and operation of modern electric power systems. In response to the existing challenge of integrating advanced metering, computation, communication, and control into appropriate levels of PSMC, Power System Monitoring and Control presents a comprehensive overview of the basic principles and key technologies for the monitoring, protection, and control of contemporary wide-area power systems. A variety of topical issues are addressed, including renewable energy sources, smart grids, wide-area stabilizing, coordinated voltage regulation, and angle oscillation damping—as well as the advantages of phasor measurement units (PMUs) and global positioning systems (GPS) time signal. End-of-chapter problems and solutions, along with case studies, add depth and clarity to all topics. Timely and important, Power System Monitoring and Control is an invaluable resource for addressing the myriad of critical technical engineering considerations in modern electric power system design and operation. • Provides an updated and comprehensive reference for researcher and engineers working on wide-area power system monitoring and control (PSMC) • Links fundamental concepts of PSMC, advanced metering and control theory/techniques, and practical engineering considerations • Covers PSMC problem understanding, design, practical aspects, and timely topics such as smart/microgrid control and coordinated voltage regulation and angle oscillation damping • Incorporates authors’ experiences teaching and researching in various international locales including Japan, Thailand, Singapore, Malaysia, Iran, and Australia

Allen Wood J. Power Generation, Operation, and Control

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10804.74 руб.
A thoroughly revised new edition of the definitive work on power systems best practices In this eagerly awaited new edition, Power Generation, Operation, and Control continues to provide engineers and academics with a complete picture of the techniques used in modern power system operation. Long recognized as the standard reference in the field, the book has been thoroughly updated to reflect the enormous changes that have taken place in the electric power industry since the Second Edition was published seventeen years ago. With an emphasis on both the engineering and economic aspects of energy management, the Third Edition introduces central «terminal» characteristics for thermal and hydroelectric power generation systems, along with new optimization techniques for tackling real-world operating problems. Readers will find a range of algorithms and methods for performing integrated economic, network, and generating system analysis, as well as modern methods for power system analysis, operation, and control. Special features include: State-of-the-art topics such as market simulation, multiple market analysis, contract and market bidding, and other business topics Chapters on generation with limited energy supply, power flow control, power system security, and more An introduction to regulatory issues, renewable energy, and other evolving topics New worked examples and end-of-chapter problems A companion website with additional materials, including MATLAB programs and power system sample data sets

Pieter Schavemaker Electrical Power System Essentials

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5016.49 руб.
The electrical power supply is about to change; future generation will increasingly take place in and near local neighborhoods with diminishing reliance on distant power plants. The existing grid is not adapted for this purpose as it is largely a remnant from the 20th century. Can the grid be transformed into an intelligent and flexible grid that is future proof? This revised edition of Electrical Power System Essentials contains not only an accessible, broad and up-to-date overview of alternating current (AC) power systems, but also end-of-chapter exercises in every chapter, aiding readers in their understanding of the material introduced. With an original approach the book covers the generation of electric energy from thermal power plants as from renewable energy sources and treats the incorporation of power electronic devices and FACTS. Throughout there are examples and case studies that back up the theory or techniques presented. The authors set out information on mathematical modelling and equations in appendices rather than integrated in the main text. This unique approach distinguishes it from other text books on Electrical Power Systems and makes the resource highly accessible for undergraduate students and readers without a technical background directly related to power engineering. After laying out the basics for a steady-state analysis of the three-phase power system, the book examines: generation, transmission, distribution, and utilization of electric energy wind energy, solar energy and hydro power power system protection and circuit breakers power system control and operation the organization of electricity markets and the changes currently taking place system blackouts future developments in power systems, HVDC connections and smart grids The book is supplemented by a companion website from which teaching materials can be downloaded.

Ullah Aasim, Siddiquee S. M. Shahnewaz, Hossain MD Emran Optimization, Control Strategy of Hybrid Renewable Power System for Bts

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6589 руб.
In remote locations, grid electric power is not really accessible or can be accessible in restricted quantities. The specific objectives of this research project was: i. To find the optimized system configuration of PV based renewable hybrid system for remote off-grid BTS sites as well as grid connected BTS (Base Transceiver Station) sites. ii. To study the feasibility of Wind-PV hybrid system configuration for off grid BTS sites. iii. To study the environmental benefits of renewable sources powering BTS. Eventually, The research successfully ended up with some great findings. Indeed the Hybrid Renewable Power System has great potential use for power generation of BTS. Interested? Just open and read it. We bet the confined ideas inside will be a big pathway of knowledge for this new emerging technology

Bjornstjerne Bjornson Three Plays. The Gauntlet, Beyond Our Power, The New System

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1364 руб.
This volume collects three plays: "The Gauntlet," "Beyond Our Power," and "The New System."

Bo Zhang Methodology and Technology for Power System Grounding

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13583.54 руб.
Grounding is the fundamental measures to ensure the safe operation of power systems, including power apparatus and control/monitoring systems, and guarantee the personal safety. Grounding technology is an interdiscipline involving electrical engineering, high voltage technology, electric safety, electromagnetics, numerical analysis, and geological exploration Methodology and Technology for Power System Grounding: Covers all topics related to power system grounding Presents fundaments and theories of grounding systems Well balances technology and methodology related to grounding system design Helps to understand the grounding analysis softwares Highlights the advanced research works in the field of grounding systems Comprehensively introduces numerical analysis methods Discovers impulse ionization phenomenon of soil around the grounding conductors Touches on lightning impulse characteristics of grounding devices for towers and buildings As a comprehensive treatment of the topic, Methodology and Technology for Power System Grounding is ideal for engineers and researchers in power system, lightning protection, and grounding. The book will also better equip postgraduates, senior undergraduate students in electrical engineering.

Steven Helmicki Primordial Strength System. Intermediate Explosive Power

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3039 руб.
The second yearly phase of strength training that continues the evolution of the athlete into the epitome of explosive power.

Mircea Eremia Advanced Solutions in Power Systems. HVDC, FACTS, and Artificial Intelligence

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12349.01 руб.
Provides insight on both classical means and new trends in the application of power electronic and artificial intelligence techniques in power system operation and control This book presents advanced solutions for power system controllability improvement, transmission capability enhancement and operation planning. The book is organized into three parts. The first part describes the CSC-HVDC and VSC-HVDC technologies, the second part presents the FACTS devices, and the third part refers to the artificial intelligence techniques. All technologies and tools approached in this book are essential for power system development to comply with the smart grid requirements. Discusses detailed operating principles and diagrams, theory of modeling, control strategies and physical installations around the world of HVDC and FACTS systems Covers a wide range of Artificial Intelligence techniques that are successfully applied for many power system problems, from planning and monitoring to operation and control Each chapter is carefully edited, with drawings and illustrations that helps the reader to easily understand the principles of operation or application Advanced Solutions in Power Systems: HVDC, FACTS, and Artificial Intelligence is written for graduate students, researchers in transmission and distribution networks, and power system operation. This book also serves as a reference for professional software developers and practicing engineers.

J. Keeble The Theory of Harmonics

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1119 руб.
Эта книга — репринт оригинального издания, созданный на основе электронной копии высокого разрешения, которую очистили и обработали вручную, сохранив структуру и орфографию оригинального издания. Редкие, забытые и малоизвестные книги, изданные с петровских времен до наших дней, вновь доступны в виде печатных книг.Репринтное нотное издание Keeble, John "The Theory of Harmonics".Жанры: Music theory; Writings; English language.Мы создали специально для Вас, используя собственные запатентованные технологии производства репринтных книг и печати по требованию.

Muhammah Adnan Implementation of New Scheme on Indian Power System for Distance Relay Operation in Zone 3 to Avoid Power System Blackout

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2989 руб.
Thesis (M.A.) from the year 2016 in the subject Energy Sciences, grade: Master's Degree, Hohai University (Energy and Electrical Collage), course: Electric Power system, language: English, abstract: In July 2012 there was blackout in India. As the result of this disturbance there were two blackouts. In first blackout only the Northern Grid was affected but in the second blackout Northern, Eastern and North-Eastern grid collapsed. A committee formed by the government analyzed the events that resulted in the collapse of system and pointed out no of factors that lead to disturbance.Whole grid collapsed under load encroachment condition. In this thesis different factors have been analyzed using PSCAD simulation and solutions have been proposed.Approximate model of Indian power system has been developed in PSCAD using approximate parameters given in Grid Failure Report issued by the Indian government. Increase in installed capacity of power system and its impact on system frequency and rotor angle has been studied. A new algorithm has been proposed for distance relay operation in Zone 3 to avoid power system blackout using Indian grid model. One of the main factors that lead to the collapse of whole system was the operation of zone 3 distance relay on 400kV Bina-Gwalior Line. This scheme will improve system stability under heavy load conditions. A simplified model in PSCAD was established in order to study the zone 3 protection of distance relay.

Eiichi Haginomori Power System Transient Analysis. Theory and Practice using Simulation Programs (ATP-EMTP)

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9261.21 руб.
Understanding transient phenomena in electric power systems and the harmful impact of resulting disturbances is an important aspect of power system operation and resilience. Bridging the gap from theory to practice, this guide introduces the fundamentals of transient phenomena affecting electric power systems using the numerical analysis tools, Alternative Transients Program- Electromagnetic Transients Program (ATP-EMTP) and ATP-DRAW. This technology is widely-applied to recognize and solve transient problems in power networks and components giving readers a highly practical and relevant perspective and the skills to analyse new transient phenomena encountered in the field. Key features: Introduces novice engineers to transient phenomena using commonplace tools and models as well as background theory to link theory to practice. Develops analysis skills using the ATP-EMTP program, which is widely used in the electric power industry. Comprehensive coverage of recent developments such as HVDC power electronics with several case studies and their practical results. Provides extensive practical examples with over 150 data files for analysing transient phenomena and real life practical examples via a companion website. Written by experts with deep experience in research, teaching and industry, this text defines transient phenomena in an electric power system and introduces a professional transient analysis tool with real examples to novice engineers in the electric power system industry. It also offers instruction for graduates studying all aspects of power systems.

Goran Strbac Electric Power Systems

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6633.24 руб.
The definitive textbook for Power Systems students, providing a grounding in essential power system theory while also focusing on practical power engineering applications. Electric Power Systems has been an essential book in power systems engineering for over thirty years. Bringing the content firmly up-to-date whilst still retaining the flavour of Weedy's extremely popular original, this Fifth Edition has been revised by experts Nick Jenkins, Janaka Ekanayake and Goran Strbac. This wide-ranging text still covers all of the fundamental power systems subjects but is now expanded to cover increasingly important topics like climate change and renewable power generation. Updated material includes an analysis of today's markets and an examination of the current economic state of power generation. The physical limits of power systems equipment – currently being tested by the huge demand for power – is explored, and greater attention is paid to power electronics, voltage source and power system components, amongst a host of other updates and revisions. Supplies an updated chapter on power system economics and management issues and extended coverage of power system components. Also expanded information on power electronics and voltage source, including VSC HVDC and FACTS. Updated to take into account the challenges posed by different world markets, and pays greater attention to up-to-date renewable power generation methods such as wind power. Includes modernized presentation and greater use of examples to appeal to today's students, also retains the end of chapter questions to assist with the learning process. Also shows students how to apply calculation techniques.

Khadka Subarna Bijaya Simulation of MPPT based PV system for Pumping Application

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5214 руб.
The operating point of the PV system depends upon the temperature, irradiation, wind speed, humidity and other environmental factors. To operate the photovoltaic system in a power efficient way, the designer should be well acquainted with the knowledge of photovoltaic behavior in terms of voltage, current and power. The task of an efficient PV system is to track the maximum operating point correctly so that optimum power can be received from the sun. Although the efficiency of the solar photo voltaic system is improving day by day but still optimum power has not been harnessed due to changes in temperature, irradiance and other factors that vary with places. The study has investigated the change in volume of water pumped by using maximum power point tracking mechanism and its benefits to the end user. The work is based on the maximum power transfer theory. The DC-DC converter will match the impedance of the photovoltaic module with the load by generating appropriate duty cycle that will be used to turn ON or OFF the electronic switch of the converter. Hence, this study is intended to design and simulate an efficient MPPT based PV tracking system for pumping application.

Thomas Ackermann Wind Power in Power Systems

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The second edition of the highly acclaimed Wind Power in Power Systems has been thoroughly revised and expanded to reflect the latest challenges associated with increasing wind power penetration levels. Since its first release, practical experiences with high wind power penetration levels have significantly increased. This book presents an overview of the lessons learned in integrating wind power into power systems and provides an outlook of the relevant issues and solutions to allow even higher wind power penetration levels. This includes the development of standard wind turbine simulation models. This extensive update has 23 brand new chapters in cutting-edge areas including offshore wind farms and storage options, performance validation and certification for grid codes, and the provision of reactive power and voltage control from wind power plants. Key features: Offers an international perspective on integrating a high penetration of wind power into the power system, from basic network interconnection to industry deregulation; Outlines the methodology and results of European and North American large-scale grid integration studies; Extensive practical experience from wind power and power system experts and transmission systems operators in Germany, Denmark, Spain, UK, Ireland, USA, China and New Zealand; Presents various wind turbine designs from the electrical perspective and models for their simulation, and discusses industry standards and world-wide grid codes, along with power quality issues; Considers concepts to increase penetration of wind power in power systems, from wind turbine, power plant and power system redesign to smart grid and storage solutions. Carefully edited for a highly coherent structure, this work remains an essential reference for power system engineers, transmission and distribution network operator and planner, wind turbine designers, wind project developers and wind energy consultants dealing with the integration of wind power into the distribution or transmission network. Up-to-date and comprehensive, it is also useful for graduate students, researchers, regulation authorities, and policy makers who work in the area of wind power and need to understand the relevant power system integration issues.

Lesha Virtyt The stability analysis of the hydro-power plant

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In this study we have addressed the problems that have to do with the running of the power system and the optimization of generation. We have treated the control of active and reactive power in order to keep the system stable condition. The objective of the control strategy is to generate and transmit power to a system composed of interconnection lines, in the most economical and safe methodology possible, keeping the voltage and frequency within norms. Also we gave the results of the simulation via Matlab of the dependency of the generator's electric parameters of an aggregate in the Vau-Dejes hydropower-plant versus the temperature of winding and oil of a power transformer of this aggregate.

Zhengyou He Wavelet Analysis and Transient Signal Processing Applications for Power Systems

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An original reference applying wavelet analysis to power systems engineering • Introduces a modern signal processing method called wavelet analysis, and more importantly, its applications to power system fault detection and protection • Concentrates on its application to the power system, offering great potential for fault detection and protection • Presents applications, examples, and case studies, together with the latest research findings • Provides a combination of the author’s tutorial notes from electrical engineering courses together with his own original research work, of interest to both industry and academia

шнур Cord Power Monitor-System Unit 1.8 м 3х0,75 PC-189-VDE 1.8

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An essential guide to studying symmetrical component theory Provides concise treatment of symmetrical components Describes major sequence models of power system components Discusses Electromagnetic Transient Program (EMTP) models Includes worked examples to illustrate the complexity of calculations, followed by matrix methods of solution which have been adopted for calculations on digital computers

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A Course Of Modern Analysis - Second Edition - An Unabridged, Completely Revised Printing Of The First Edition, With Additions (Riemann Integration, Integral Equations, Riemann-Zeta Function) And Corrections, And Consistent With All Subsequent Editions, Save For The 23rd Chapter Dealing With Ellipsoidal Harmonics And Lame's Equation - This Edition Has Been Digitally Enlarged, To Include The Decimal System Of Paragraphing, With Appendix, List Of Quoted Authors, And Comprehensive General Index.

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There are different ways of detection of system disturbance and then protection of domestic and industrial electrical system. But most of them are relatively costly. Here I want to design a system which is less complex and economical than the remaining system. My total system can also served different purpose such as, power saving traffic light system, emergency lighting system, switch on- off system by making sound, thief detection for domestic areas and etc. Here I use sound and vibration sensor to serve the purpose. The total system is designed to improve the comfort level of an individual person. So a Complete System by Sensing Sound and Vibration for Detection of System Disturbance and Protection of Domestic and Industrial Electric System is designed here.

Ajay Singh Particle Swarm Optimization Approach for Distributed Generation Planning to Improve the Voltage Profile Margin

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Master's Thesis from the year 2017 in the subject Engineering - Mechanical Engineering, grade: 4.00, Kathmandu University (School of Engineering), course: Planning and Operation of Energy System, language: English, abstract: In power system, research area is widening and one is Distributed Generation (DG) integration in a distribution system. It restructures the power system and also helps in distribution system planning. This dissertation addresses the issue of voltage margin improvement by integrating DG unit and, therefore, this dissertation presents the model to enhance the candidate bus voltage of distribution system by optimal integration of DG units. The technical analysis is performed for radial distribution system (RDS).The proposed algorithm evaluates the base condition of loss and bus voltage and then generate populations of solutions at first stage. Optimization of DG unit size and locate the optimal bus can be done with the particle swarm optimization (PSO) method. The proposed paradigm works with the objective that minimize the active power loss under a constraint of voltage limit and DG size limit.Finally, the conclusion is that DG unit can locate optimally with optimized size to the distribution system for the voltage profile improvement of the buses and also the total loss of system is reduced. It is also concluded that the model can be used for any radial distribution systems.

Oriol Gomis-Bellmunt HVDC Grids. For Offshore and Supergrid of the Future

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This book discusses HVDC grids based on multi-terminal voltage-source converters (VSC), which is suitable for the connection of offshore wind farms and a possible solution for a continent wide overlay grid. HVDC Grids: For Offshore and Supergrid of the Future begins by introducing and analyzing the motivations and energy policy drives for developing offshore grids and the European Supergrid. HVDC transmission technology and offshore equipment are described in the second part of the book. The third part of the book discusses how HVDC grids can be developed and integrated in the existing power system. The fourth part of the book focuses on HVDC grid integration, in studies, for different time domains of electric power systems. The book concludes by discussing developments of advanced control methods and control devices for enabling DC grids. Presents the technology of the future offshore and HVDC grid Explains how offshore and HVDC grids can be integrated in the existing power system Provides the required models to analyse the different time domains of power system studies: from steady-state to electromagnetic transients This book is intended for power system engineers and academics with an interest in HVDC or power systems, and policy makers. The book also provides a solid background for researchers working with VSC-HVDC technologies, power electronic devices, offshore wind farm integration, and DC grid protection.

Lidtke Aleksander Solar Power Satellite. an alternative concept

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With the ever-increasing demand for power, shortage of natural resources, and increasing concerns about the pollution of the environment, renewable energy sources are becoming more popular. Unfortunately, not all locations on Earth have the capacity to host new renewable power plants. Some of these areas coincide with regions where the power demand is likely to increase in the future. This is of concern as this additional power demand may be satisfied by traditional, non-sustainable power plants. But it also creates a chance to introduce a new renewable energy source: a Solar Power Satellite. This book reviews previous work done in the field of Solar Power Satellites, and analyses important factors that need to be taken into account when designing such a Space-Based Solar Power system. Then a systematic system-level study of a Solar Power Satellite mission is conducted. Finally, a potential design of a demonstration mission that could be implemented using readily-available technology as well as scaled up to a full-fledged system is proposed.

Sintayehu Hirpassa Designing an Information Extraction System for Amharic Vacancy Announcement Text

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Thesis (M.A.) from the year 2011 in the subject Computer Science - Applied, grade: Very Good, Addis Ababa University, course: NAtural Language processing, language: English, comment: This paper is a very good view in Natural Language Processing specifically Information Extraction for local language of Ethiopia. The author is the pioneer on this topic in our school and spawns remarkable results from his study, I believe that this study is a milestone for the integration of local language in to computerize world., abstract: The number of Amharic documents on the Web is increasing as many newspaper publishers started providing their services electronically. The unavailability of tools for extracting and exploiting the valuable information from Amharic text, which is effective enough to satisfy the users has been a major problem and manually extracting information from a large amount of unstructured text is a very tiresome and time consuming job, this was the main reason which motivate the researcher to engage in this research work. The overall objective of the research was to develop information extraction system for the Amharic vacancy announcement text. 116 Amharic vacancy announcement texts which contain 10,766 words were collected from the ―Ethiopian reporter‖ newspaper published in Amharic twice in week. For this study, nine candidate texts are selected from Amharic vacancy announcement text, these are organization, position, qualification, experience, salary, number of peo...

R. Smith Harmonics, or The Philosophy of Musical Sounds

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Эта книга — репринт оригинального издания, созданный на основе электронной копии высокого разрешения, которую очистили и обработали вручную, сохранив структуру и орфографию оригинального издания. Редкие, забытые и малоизвестные книги, изданные с петровских времен до наших дней, вновь доступны в виде печатных книг.Репринтное нотное издание R. Smith "Harmonics, or The Philosophy of Musical Sounds".Жанры: Music theory; Writings; English language.Мы создали специально для Вас, используя собственные запатентованные технологии производства репринтных книг и печати по требованию.

Umakanta Sahoo A Polygeneration Process Concept for Hybrid Solar and Biomass Power Plant. Simulation, Modelling, and Optimization

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The global warming phenomenon as a significant sustainability issue is gaining worldwide support for development of renewable energy technologies. The term “polygeneration” is referred to as “an energy supply system, which delivers more than one form of energy to the final user.” For example, electricity, cooling and desalination can be delivered from a polygeneration process. The polygeneration process in a hybrid solar thermal power plant can deliver electricity with less impact on the environment compared to a conventional fossil fuel-based power generating system. It is also THE next generation energy production technique with the potential to overcome the undesirable intermittence of renewable energy systems. In this study, the polygeneration process simultaneous production of power, vapor absorption refrigeration (VAR) cooling and multi-effect humidification and dehumidification (MEHD) desalination system from different heat sources in hybrid solar-biomass (HSB) system with higher energy efficiencies (energy and exergy), primary energy savings (PES) and payback period are investigated, focusing on several aspects associated with hybrid solar-biomass power generation installations, such as wide availability of biomass resources and solar direct normal irradiance (DNI), and other technologies. Thermodynamic evaluation (energy and exergy) of HSB power has also been investigated, along with the VAR cooling system, the modelling, simulation, optimization and cost analysis of the polygeneration hybrid solar biomass system, all accompanied by multiple case studies and examples for practical applications. This volume provides the researcher, student and engineer with the intellectual tool needed for understanding new ideas in this rapidly emerging field. The book is also intended to serve as a general source and reference book for the professional (consultant, designer, contractor etc.) who is working in the field of solar thermal, biomass, power plant, polygeneration, cooling and process heat. It is a must-have for anyone working in this field.

Душевая стойка Grohe Power&Soul Cosmopolitan 27905000

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49500 руб.
​Power&Soul™ Cosmopolitan System 190 Душевая система с переключателем для настенного монтажа горизонтальный поворотный душевой кронштейн 450 мм Power&Soul Cosmopolitan Верхний душ (27 764 000) Ручной душ Power&Soul Cosmopolitan 115 (27 660 000) регулируется по высоте с помощью скользящего элемента (12 140 000) душевой шланг 1750 мм (28 388 000)

Megha Khatri Wavelets As A Tool To Approach Power Quality

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Electronic loads are used in large scale at receiving end of power distribution systems,effecting the quality of power. Wavelets detect the type of events or noise in the system and denoise the system. In this book one can easily learn about the various events , making a wavelet and a comparsion is done using MatLab tool box with other techniques to improve the quality of power.Results are shown and analised using programming and simulation.

Magic Power MP-H12EL1

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290 руб.
Подходит ля следующих пылесосов: ELECTROLUX Bolido Z4500 - Z4595, Clario Z1900 - Z2095, Z7500 - Z7550, Oxygen Z5500 - Z5696, Oxygen Z5900 - Z5995, Oxygen System ZO6310 - ZO6360, Praxio Z6025 - Z6040, Power System Smartvac, Ultra Silencer Z3300 - Z6040, Jewel, VOLTA, Bolido, Gemini, Trio Compact, PHILIPS, Specialist FC-9101 - 9114, Universe FC-9002 - 9010, BORK, VC SHB 9118, VC SHB 9818, VC SHB 9919, THOMAS, Fontana, TORNADO, Bolido, Serenys, Magnum 6000, Super Pro, Essensio

Akshay Kumar DFIG-based Wind Power Conversion System Connected to Grid

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5039 руб.
Master's Thesis from the year 2014 in the subject Engineering - Power Engineering, grade: 7.8, Ajay Kumar Garg Engineering College, course: M.Tech, language: English, abstract: Wind generation has become the most important alternate energy source and has experienced increased progress in India during the past decade. While it has great potential as an alternative to less environmentally friendly energy sources, there are various technical challenges that cause wind to be considered negatively by many utilities. Wind energy conversion systems suffer from the fact that their real power generation is closely dependent on the local environmental conditions. The Doubly Fed Induction Generator (DFIG) based wind turbine with variable-speed variable-pitch control scheme is the most popular wind power generator in the wind power industry. This machine can be operated either in grid connected or standalone mode. In this thesis, a detailed electromechanical model of a DFIG-based wind turbine connected to power grid as well as separately operated wind turbine system with different sub-systems is developed in the MATLAB/SIMULINK environment and its equivalent generator and turbine control structure is realized. In this regard following configurations have been considered:• DFIG with Battery storage sub-system• DFIG with Buck-Boost converter• DFIG with transformer• DFIG with 3-winding transformerAddition of battery storage and buck-boost converter sub-systems into the system enables no...

Harald Oosterhof Rare Metal Technology 2016

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11572.85 руб.
This collection presents the papers presented in the symposium on extraction of rare metals as well as rare extraction processing techniques used in metal production. Paper topics include the extraction and processing of elements like antimony, arsenic, gold, indium, palladium, platinum, rare earth metals including yttrium and neodymium, titanium, tungsten, and vanadium. The rare processing techniques covered include direct extraction process for rare earth element recovery; biosorption of precious metals; fluorination behavior of uranium and zirconium mixture of fuel debris treatment; and recovery of valuable components of commodity metals such as zinc, nickel, and metals from slag.

Bai Hua Transients of Modern Power Electronics

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12389.13 руб.
In high power, high voltage electronics systems, a strategy to manage short timescale energy imbalances is fundamental to the system reliability. Without a theoretical framework, harmful local convergence of energy can affect the dynamic process of transformation, transmission, and storage which create an unreliable system. With an original approach that encourages understanding of both macroscopic and microscopic factors, the authors offer a solution. They demonstrate the essential theory and methodology for the design, modeling and prototyping of modern power electronics converters to create highly effective systems. Current applications such as renewable energy systems and hybrid electric vehicles are discussed in detail by the authors. Key features: offers a logical guide that is widely applicable to power electronics across power supplies, renewable energy systems, and many other areas analyses the short-scale (nano-micro second) transient phenomena and the transient processes in nearly all major timescales, from device switching processes at the nanoscale level, to thermal and mechanical processes at second level explores transient causes and shows how to correct them by changing the control algorithm or peripheral circuit includes two case studies on power electronics in hybrid electric vehicles and renewable energy systems Practitioners in major power electronic companies will benefit from this reference, especially design engineers aiming for optimal system performance. It will also be of value to faculty staff and graduate students specializing in power electronics within academia.

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The second edition of the highly acclaimed Wind Power in Power Systems has been thoroughly revised and expanded to reflect the latest challenges associated with increasing wind power penetration levels. Since its first release, practical experiences with high wind power penetration levels have significantly increased. This book presents an overview of the lessons learned in integrating wind power into power systems and provides an outlook of the relevant issues and solutions to allow even higher wind power penetration levels. This includes the development of standard wind turbine simulation models. This extensive update has 23 brand new chapters in cutting-edge areas including offshore wind farms and storage options, performance validation and certification for grid codes, and the provision of reactive power and voltage control from wind power plants. Key features: Offers an international perspective on integrating a high penetration of wind power into the power system, from basic network interconnection to industry deregulation; Outlines the methodology and results of European and North American large-scale grid integration studies; Extensive practical experience from wind power and power system experts and transmission systems operators in Germany, Denmark, Spain, UK, Ireland, USA, China and New Zealand; Presents various wind turbine designs from the electrical perspective and models for their simulation, and discusses industry standards and world-wide grid codes, along with power quality issues; Considers concepts to increase penetration of wind power in power systems, from wind turbine, power plant and power system redesign to smart grid and storage solutions. Carefully edited for a highly coherent structure, this work remains an essential reference for power system engineers, transmission and distribution network operator and planner, wind turbine designers, wind project developers and wind energy consultants dealing with the integration of wind power into the distribution or transmission network. Up-to-date and comprehensive, it is also useful for graduate students, researchers, regulation authorities, and policy makers who work in the area of wind power and need to understand the relevant power system integration issues.
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