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On The Modeling And Control Of Wound Field Synchronous Machine Based Gensets For Operation In A Microgrid Environment
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Book Synopsis On the Modeling and Control of Wound Field Synchronous Machine Based Gensets for Operation in a Microgrid Environment by : Shashank Krishnamurthy
Download or read book On the Modeling and Control of Wound Field Synchronous Machine Based Gensets for Operation in a Microgrid Environment written by Shashank Krishnamurthy and published by . This book was released on 2008 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Integration of Single-phase Microgrids by : Sandeep Bala
Download or read book Integration of Single-phase Microgrids written by Sandeep Bala and published by . This book was released on 2008 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis of Synchronous Machines by : T.A. Lipo
Download or read book Analysis of Synchronous Machines written by T.A. Lipo and published by CRC Press. This book was released on 2017-12-19 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analysis of Synchronous Machines, Second Edition is a thoroughly modern treatment of an old subject. Courses generally teach about synchronous machines by introducing the steady-state per phase equivalent circuit without a clear, thorough presentation of the source of this circuit representation, which is a crucial aspect. Taking a different approach, this book provides a deeper understanding of complex electromechanical drives. Focusing on the terminal rather than on the internal characteristics of machines, the book begins with the general concept of winding functions, describing the placement of any practical winding in the slots of the machine. This representation enables readers to clearly understand the calculation of all relevant self- and mutual inductances of the machine. It also helps them to more easily conceptualize the machine in a rotating system of coordinates, at which point they can clearly understand the origin of this important representation of the machine. Provides numerical examples Addresses Park’s equations starting from winding functions Describes operation of a synchronous machine as an LCI motor drive Presents synchronous machine transient simulation, as well as voltage regulation Applying his experience from more than 30 years of teaching the subject at the University of Wisconsin, author T.A. Lipo presents the solution of the circuit both in classical form using phasor representation and also by introducing an approach that applies MathCAD®, which greatly simplifies and expands the average student’s problem-solving capability. The remainder of the text describes how to deal with various types of transients—such as constant speed transients—as well as unbalanced operation and faults and small signal modeling for transient stability and dynamic stability. Finally, the author addresses large signal modeling using MATLAB®/Simulink®, for complete solution of the non-linear equations of the salient pole synchronous machine. A valuable tool for learning, this updated edition offers thoroughly revised content, adding new detail and better-quality figures.
Book Synopsis On the Modeling and Control of High Phase Order Synchronous Machines by :
Download or read book On the Modeling and Control of High Phase Order Synchronous Machines written by and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work reports on a new method of multi-phase machine modeling, one that separates the effects of the machine's magnetic structure from that of the winding configuration. A generic winding configuration is defined and the process by which one may transform to and from the generic configuration and the actual winding configuration is described. By this method, the transformations and the machine model for the generic machine may be easily derived and readily extended to a machine with any number of phases. In this thesis, the completely generalized n phase Symmetrical Component, Clarke and Park transformations are developed along with the complete harmonic model of an n phase wound-field salient synchronous machine. The full harmonic machine model yields some important results, the most notable of which are: (a) Non-negligible winding function harmonics result in magnetizing inductance in the harmonic dq reference frames. This larger inductance value can make it easier to control the low-order harmonic currents that have been so widely reported in conjunction with high phase order machines. (b) Current in the harmonic reference frames could be used to produce useful torque, provided that a matching harmonic exists in the rotor field. And (c) if saliency exists, it can result in a dynamic coupling term between adjacent harmonic dq reference frames. As a means to verify the model, a nine-phase interior permanent magnet (IPM) synchronous machine with single-slot per-pole per-phase overlapped stator windings (high spatial harmonic content) was constructed and driven by a nine-phase PWM converter. It is shown that by the proper application of the true n phase Park transformation, together with the implementation of multiple harmonic synchronous reference frame controllers, the prevalent low order harmonic currents can be successfully controlled.
Book Synopsis Variable Speed Generators by : Ion Boldea
Download or read book Variable Speed Generators written by Ion Boldea and published by CRC Press. This book was released on 2005-11-09 with total page 551 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surveying the technologies used to satisfy the world's demand for open, efficient, and clean electricity, Variable Speed Generators provides an in-depth examination of variable-speed generators for both stand-alone and grid-connected applications. Part of The Electric Generators Handbook, Two-Volume Set, this work offers authoritative, tightly focused treatment of the topologies, steady state and transients modeling, performance, control, design, and testing of stand-alone and grid-connected generators operating at variable speeds. Variable Speed Generators thoroughly covers all types of variable-speed generators currently in progress in distributed generation and renewable energy applications around the world. It delves into the steady state, transients, control, and design of claw-pole rotor synchronous, induction, permanent magnet-assisted synchronous, and switched reluctance starter alternators for hybrid-electric vehicles. It also discusses PM synchronous, transverse-flux PM, and flux-reversal PM generators for low-speed wind and hydro energy conversion as well as linear-motion alternators for residential and spacecraft applications. Numerous design and control examples illustrate the discussion. The promise of renewable, sustainable energy rests on our ability to design innovative power systems that are able to harness energy from a variety of sources. Variable Speed Generators supplies the tools necessary to design, validate, and deploy the right power generation technologies to fulfill tomorrow's complex energy needs.
Book Synopsis On the Modeling and Control of High Phase Order Synchronous Machines by : Andrew Allen Rockhill
Download or read book On the Modeling and Control of High Phase Order Synchronous Machines written by Andrew Allen Rockhill and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This work reports on a new method of multi-phase machine modeling, one that separates the effects of the machine's magnetic structure from that of the winding configuration. A generic winding configuration is defined and the process by which one may transform to and from the generic configuration and the actual winding configuration is described. By this method, the transformations and the machine model for the generic machine may be easily derived and readily extended to a machine with any number of phases. In this thesis, the completely generalized n phase Symmetrical Component, Clarke and Park transformations are developed along with the complete harmonic model of an n phase wound-field salient synchronous machine. The full harmonic machine model yields some important results, the most notable of which are: (a) Non-negligible winding function harmonics result in magnetizing inductance in the harmonic dq reference frames. This larger inductance value can make it easier to control the low-order harmonic currents that have been so widely reported in conjunction with high phase order machines. (b) Current in the harmonic reference frames could be used to produce useful torque, provided that a matching harmonic exists in the rotor field. And (c) if saliency exists, it can result in a dynamic coupling term between adjacent harmonic dq reference frames. As a means to verify the model, a nine-phase interior permanent magnet (IPM) synchronous machine with single-slot per-pole per-phase overlapped stator windings (high spatial harmonic content) was constructed and driven by a nine-phase PWM converter. It is shown that by the proper application of the true n phase Park transformation, together with the implementation of multiple harmonic synchronous reference frame controllers, the prevalent low order harmonic currents can be successfully controlled.
Book Synopsis An Integrated Capacitive Brushless Excitation System for Wound Field Synchronous Machines Using Low-cost Printed Circuit Boards by : Skyler Steven Hagen
Download or read book An Integrated Capacitive Brushless Excitation System for Wound Field Synchronous Machines Using Low-cost Printed Circuit Boards written by Skyler Steven Hagen and published by . This book was released on 2019 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the current proliferation of electric machines taking over roles that were historically performed by mechanical transmissions and combustion engines, strides are being taken to make electric machines more power and torque dense, as well as less expensive. The wound field synchronous machine (WFSM) has advantages in power density, controllability, as well as cost of manufacturing, over other types including induction machines and permanent magnet synchronous machines. Its use for vehicle and traction applications has been limited due to the requirement of electrical power on the rotor field windings throughout the machine's entire range of speed, including stall. Field excitation requirements at stall and low speeds prohibit the use of conventional brushless exciters, commonly used in gen-sets, which rely on shaft rotation and torque to produce field current. Gapped rotating electromagnetic transformers allow excitation at stall but suffer from complexity of manufacturing and added volume to accommodate the ferrous core materials required to complete a magnetic circuit. All contactless field excitation methods require a rotating rectifier diode board or assembly to be installed on the rotor, alongside the brushless exciter or rotating transformer, in order to provide direct current to the field winding, from a contactless power coupler which is inherently alternating current. Capacitive power transfer (CPT) has been shown to be competitive with inductive power transfer in supplying full field excitation to wound rotor synchronous machines. In this thesis, a capacitive power transfer system is described in which the rotating rectifier board, manufactured using conventional printed circuit board techniques, dual-purposes as the capacitive power coupling structure, resulting in an efficient, low cost and compact means for transferring kilowatt scale electrical power to a wound field synchronous machine. A design process for the capacitive coupler itself in conjunction with necessary passive components and controls is laid out, and experimental results are given for a CPT system being used to provide full field excitation to a 55kW WFSM.
Book Synopsis Microgrid Architectures, Control and Protection Methods by : Naser Mahdavi Tabatabaei
Download or read book Microgrid Architectures, Control and Protection Methods written by Naser Mahdavi Tabatabaei and published by Springer. This book was released on 2019-08-01 with total page 781 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents intuitive explanations of the principles of microgrids, including their structure and operation and their applications. It also discusses the latest research on microgrid control and protection technologies and the essentials of microgrids as well as enhanced communication systems. The book provides solutions to microgrid operation and planning issues using various methodologies including planning and modelling; AC and DC hybrid microgrids; energy storage systems in microgrids; and optimal microgrid operational planning. Written by specialists, it is filled in innovative solutions and research related to microgrid operation, making it a valuable resource for those interested in developing updated approaches in electric power analysis, design and operational strategies. Thanks to its in-depth explanations and clear, three-part structure, it is useful for electrical engineering students, researchers and technicians.
Book Synopsis Microgrid Protection and Control by : Dehua Zheng
Download or read book Microgrid Protection and Control written by Dehua Zheng and published by Academic Press. This book was released on 2021-06-23 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microgrid Protection and Control is the result of numerous research works and publications by R&D engineers and scientists of the Microgrid and Energy Internet Research Centre. Through the authors long-routed experience in the microgrid and energy internet industry, this book looks at the sophisticated protection and control issues connected to the special nature of microgrid. The book explains the different ways of classifying types of microgrids and common misconceptions, looking at industrial and research trends along with the different technical issues and challenges faced with deploying microgrid in various settings. Forecasting short-term demand and renewable generation for optimal operation is covered with techniques for accurate enhancement supported with practical application examples. With chapters on dynamic, transient and tertiary control and experimental and simulation tests this reference is useful for all those working in the research, engineering and application of microgrids and power distribution systems. Contains practical examples to support the research and experimental results on microgrid protection and control Includes detailed theories and referential algorithms Provides innovative solutions to technical issues in protection and control of microgrids
Book Synopsis Microgrids and Active Distribution Networks by : Sunetra Chowdhury
Download or read book Microgrids and Active Distribution Networks written by Sunetra Chowdhury and published by IET. This book was released on 2009-06-24 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microgrids and Active Distribution Networks offer a potential solution for sustainable, energy-efficient power supply to cater for increasing load growth, supplying power to remote areas, generation of clean power and reduction in emission of greenhouse gases & particulates as per Kyoto protocol.
Book Synopsis Embedded Generation by : Nicholas Jenkins
Download or read book Embedded Generation written by Nicholas Jenkins and published by IET. This book was released on 2000-06-30 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, intended for both students and practising engineers, addresses all the issues pertinent to the implementation of embedded generation.
Book Synopsis Grid Converters for Photovoltaic and Wind Power Systems by : Remus Teodorescu
Download or read book Grid Converters for Photovoltaic and Wind Power Systems written by Remus Teodorescu and published by John Wiley & Sons. This book was released on 2011-07-28 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Grid converters are the key player in renewable energy integration. The high penetration of renewable energy systems is calling for new more stringent grid requirements. As a consequence, the grid converters should be able to exhibit advanced functions like: dynamic control of active and reactive power, operation within a wide range of voltage and frequency, voltage ride-through capability, reactive current injection during faults, grid services support. This book explains the topologies, modulation and control of grid converters for both photovoltaic and wind power applications. In addition to power electronics, this book focuses on the specific applications in photovoltaic wind power systems where grid condition is an essential factor. With a review of the most recent grid requirements for photovoltaic and wind power systems, the book discusses these other relevant issues: modern grid inverter topologies for photovoltaic and wind turbines islanding detection methods for photovoltaic systems synchronization techniques based on second order generalized integrators (SOGI) advanced synchronization techniques with robust operation under grid unbalance condition grid filter design and active damping techniques power control under grid fault conditions, considering both positive and negative sequences Grid Converters for Photovoltaic and Wind Power Systems is intended as a coursebook for graduated students with a background in electrical engineering and also for professionals in the evolving renewable energy industry. For people from academia interested in adopting the course, a set of slides is available for download from the website. www.wiley.com/go/grid_converters
Book Synopsis Modelling and Control of Switched Reluctance Machines by : Rui Araújo
Download or read book Modelling and Control of Switched Reluctance Machines written by Rui Araújo and published by BoD – Books on Demand. This book was released on 2020-09-09 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today, switched reluctance machines (SRMs) play an increasingly important role in various sectors due to advantages such as robustness, simplicity of construction, low cost, insensitivity to high temperatures, and high fault tolerance. They are frequently used in fields such as aeronautics, electric and hybrid vehicles, and wind power generation. This book is a comprehensive resource on the design, modeling, and control of SRMs with methods that demonstrate their good performance as motors and generators.
Download or read book AC Machine Systems written by Jingde Gao and published by Springer Science & Business Media. This book was released on 2010-07-07 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: "AC Machine Systems" stresses both analysis methods and operating performances of AC machine systems, including variable speed drive system of AC machines with power electronics and control devices, power energy system composed of AC machines and power lines, special machine system with special machines and special loads, electric machine system consisting of AC machines and excitation devices. Based on a single coil, the Multi-Loop Theory is thoroughly described, and examples of how to use the new approach are presented. This book provides a new way for analyzing the AC machine systems. This book is designed for the researchers and postgraduates in the field of electric machines and control. It's also a reference book for related technicians. This book is written in memory of Professor Jingde Gao, past-president of Tsinghua University, Member of Chinese Academy of Sciences. Another two authors, Linzheng Zhang and Xiangheng Wang both are Professors in Electrical Engineering Dept. of Tsinghua University.
Book Synopsis Wind Turbine Control Systems by : Fernando D. Bianchi
Download or read book Wind Turbine Control Systems written by Fernando D. Bianchi and published by Springer Science & Business Media. This book was released on 2006-09-07 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book emphasizes the application of Linear Parameter Varying (LPV) gain scheduling techniques to the control of wind energy conversion systems. This reformulation of the classical problem of gain scheduling allows straightforward design procedure and simple controller implementation. From an overview of basic wind energy conversion, to analysis of common control strategies, to design details for LPV gain-scheduled controllers for both fixed- and variable-pitch, this is a thorough and informative monograph.
Book Synopsis Wind Power in Power Systems by : Thomas Ackermann
Download or read book Wind Power in Power Systems written by Thomas Ackermann and published by John Wiley & Sons. This book was released on 2012-04-23 with total page 1132 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Wind Energy Generation: Modelling and Control by : Olimpo Anaya-Lara
Download or read book Wind Energy Generation: Modelling and Control written by Olimpo Anaya-Lara and published by John Wiley & Sons. This book was released on 2011-08-24 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: WIND ENERGY GENERATION WIND ENERGY GENERATION MODELLING AND CONTROL With increasing concern over climate change and the security of energy supplies, wind power is emerging as an important source of electrical energy throughout the world. Modern wind turbines use advanced power electronics to provide efficient generator control and to ensure compatible operation with the power system. Wind Energy Generation describes the fundamental principles and modelling of the electrical generator and power electronic systems used in large wind turbines. It also discusses how they interact with the power system and the influence of wind turbines on power system operation and stability. Key features: Includes a comprehensive account of power electronic equipment used in wind turbines and for their grid connection. Describes enabling technologies which facilitate the connection of large-scale onshore and offshore wind farms. Provides detailed modelling and control of wind turbine systems. Shows a number of simulations and case studies which explain the dynamic interaction between wind power and conventional generation.
