Loi Lei Lai, Tze-Fun Chan

Distributed Generation (eBook, PDF)

Induction and Permanent Magnet Generators

• Format: PDF

Produktbeschreibung

Distributed power generation is a technology that could help to enable efficient, renewable energy production both in the developed and developing world. It includes all use of small electric power generators, whether located on the utility system, at the site of a utility customer, or at an isolated site not connected to the power grid. Induction generator (IG) is the most commonly used and cheapest technology, compatible with renewable energy resources. Permanent magnet (PM) generators have traditionally been avoided due to high fabrication costs; however, compared with IGs they are more reliable and productive. Distributed Generation thoroughly examines the principles, possibilities and limitations of creating energy with both IGs and PM generators. It takes an electrical engineering approach in the analysis and testing of these generators, and includes diagrams and extensive case study examples to better demonstrate how the integration of energy sources can be accomplished. The book also provides the practical tools needed to model and implement new techniques for generating energy through isolated or grid-connected systems. Besides a chapter introducing the technical, economic and environmental impacts of distributed generation, this book includes: * an examination of various phase-balancing schemes for a three-phase IG operating on a single-phase power system; * a coupled circuit 2-D finite element analysis of a grid-connected IG, with Steinmetz connection; * a study of self-excited induction generator (SEIG) schemes for autonomous power systems, and the voltage and frequency control of SEIG with a slip-ring machine (SESRIG); * a report on a PM synchronous generator with inset rotor for achieving a reduced voltage regulation when supplying an autonomous power system, and an analysis of its performance using a two-axis model and finite element method; * experimental work on various IG and SEIG schemes. This book is a must-read for engineers, consultants, regulators, and environmentalists involved in energy production and delivery, helping them to evaluate renewable energy sources and to integrate these into an efficient energy delivery system. It is also a superior reference for undergraduates and postgraduates. Designers, operators, and planners will appreciate its unique contribution to the literature in this field.

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Produktdetails

• Verlag: John Wiley & Sons
• Seitenzahl: 262
• Erscheinungstermin: 2. August 2008
• Englisch
• ISBN-13: 9780470511817
• Artikelnr.: 37295095

Autorenporträt

Loi Lei Lai graduated from Aston University inBirmingham with a BSc and a PhD. He was awarded a DSc by CityUniversity London. He is also an honrorary graduate of CityUniversity. In 1984, he was appointed Senior Lecturer atStaffordshire Polytechnic. From 1986 to 1987, he was a RoyalAcademy of Engineering Industrial Fellow to both GEC AlsthomTurbine Generators Ltd and the Engineering research Centre. He iscurrently Head of Energy Systems Group and Chair in ElectricalEngineering at City University London. In the last decade,Professor Lai has authored/co-authored 200 technical publications.He has also written a book entitled Intelligent System Applicationsin Power Engineering - Evolutionary Programming and Neural Networksand, in 2001, edited the book Power System Restructuring andDeregulation - Trading, Performance and Information Technology,both published by John Wiley & Sons, Ltd. He was award theIEEE Third Millennium Medal and won the IEEE Power EngineeringSociety, United Kingdom and Republic of Ireland (UKRI), chapter,Outstanding Engineer Award in 2003. In 1995, he received ahigh-quality paper prize from the International Association ofDesalination, USA and in 2006 he was awarded a Prize paper by theIEEE Power Generation Committee. He is a Fellow of the IEEE and theIET (Institution of Engineering and Technology). Among his professional activities, he is a Founder and was theConference Chairman of the international Conference on PowerUtility Deregulation, Restructuring man of the InternationalConference on Power Utility Deregulation, Restructuring and PowerTechnologies (DRPT) 2000, co-sponsored by the IEEE (now IET) andPower Technologies (DRPT) 2000, co-sponsored by the IEE (now IET)and IEEE. He reviews grant proposals regularly for the EPSRC,Australian Research Council and Hong Kong research Grant Council.In 2001, he was invited by the Hong Kong Institution of Engineersto be Chairman of an Accreditation Visit Team to accredit the BEng(Hons) degree in Electrical Engineering. Since 2005, Professor Laihas been invited as a judge for the Power/Energy Category in theIET Innovation in Engineering Awards. He was also StudentRecruitment Office of the IEEE UKRI Section Executive Committee. Heis a member of the Intelligent Systems Subcommittee in Power SystemAnalysis, Computing and Economic Committee, IEEE Power EngineeringSociety; a Member of the Executive Team of the Power Trading andControl Technical and Professional Network, IET; an Editor of theIEE Proceedings - Generation, Distribution and Generation (now IETGeneration, Distribution and Generation); an Editorial Board Memberof the International Journal of Electrical Power & EnergySystems published by Elsevier Science Ltd, UK; InternationalAdvisor, Hong Kong Institution of Engineers (HKIE) Transactions andan Editorial Board Member of the European Transactions onElectrical Power published by John Wiley & Sons, Ltd. He was aresearch Professor at Tokyo Metropolitan University, is alsoVisiting professor at Southeast University Nanjing and GuestProfessor at Fudan University, Shanghai. He has also been invitedto deliver keynote addresses and plenary speeches to several majorinternational conferences sponsored by the IET and IEEE. Tze Fun Chan received his BSc (Eng) and MPhil degrees inelectrical engineering from the University of Hong Kong in 1974and1980, respectively. He received his PhD in electrical engineeringfrom City University London in 2005. Currently, Dr Chan is anAssociate Professor in the Department of Electrical Engineering,Hong Kong Polytechnic University, where he has been since 1978. Hisresearch interests are self-excited AC generators, brushless ACgenerators and permanent magnet machines. In June 2006, he wasawarded a Prize Paper by the IEEE Power Engineering Society EnergyDevelopment and Power Generation Committee.

Inhaltsangabe

Foreword. Preface. Acknowledgements. About the Authors. 1. Distributed
Generation. 1.1 Introduction. 1.2 Reasons for DG. 1.3 Technical Impacts of
DG. 1.4 Economic Impact of DG. 1.5 Barriers to DG Development. 1.6
Renewable Sources of Energy. 1.7 Renewable Energy Economics. 1.8
Interconnection. 1.9 Recommendations and Guidelines for DG Planning. 1.10
Summary. References. 2. Generators. 2.1 Introduction. 2.2 Synchronous
Generator. 2.3 Induction Generator. 2.4 Doubly Fed Induction Generator. 2.5
Summary. References. 3. Three-Phase IG Operating on a Single-Phase Power
System. 3.1 Introduction. 3.2 Phase Balancing Using Passive Circuit
Elements. 3.3 Phase Balancing using the Smith Connection. 3.4
Microcontroller-Based Multi-Mode Control of SMIG. 3.5 Phase-Balancing using
a Line Current Injection Method. References. 4. Finite Element Analysis of
Grid-Connected IG with the Steinmetz Connection. 4.1 Introduction. 4.2
Steinmetz Connection and Symmetrical Components Analysis. 4.3 Machine
Model. 4.4 Finite Element Analysis. 4.5 Computational Aspects. 4.6 Case
Study. 4.7 Summary. References. 5. SEIGs for Autonomous Power Systems. 5.1
Introduction. 5.2 Three-Phase SEIG with the Steinmetz Connection. 5.3 SEIG
with Asymmetrically Connected Impedances and Excitation Capacitances. 5.4
Self-regulated SEIG for Single-Phase Loads. 5.5 SEIG with the Smith
Connection. References. 6. Voltage and Frequency Control of SEIG with
Slip-Ring Rotor. 6.1 Introduction. 6.2 Performance Analysis of SESRIG. 6.3
Frequency and Voltage Control. 6.4 Control with Variable Stator Load. 6.5
Practical Implementation. 6.6 Summary. References. 7. PMSGs For Autonomous
Power Systems. 7.1 Introduction. 7.2 Principle and Construction of PMSG
with Inset Rotor. 7.3 Analysis for Unity-Power-Factor Loads. 7.4 A
Comprehensive Analysis. 7.5 Computation of Synchronous Reactances. 7.6
Analysis using Time-Stepping 2-D FEM. References. 8. Conclusions. 8.1
Accomplishments of the Book. 8.2 Future Work. Reference. Appendix A.
Analysis for IG and SEIG. A.1 Symmetrical Components Equations for IG. A.2
Positive-Sequence and Negative-Sequence Circuits of IG. A.3 Vp and Vn for
IG with Dual-Phase Converters. A.4 Derivation of Angular Relationship. A.5
Input Impedance of SEIG with the Steinmetz Connection. References. Appendix
B. The Method of Hooke and Jeeves. Reference. Appendix C. A Note on the
Finite Element Method [1] . C.1 Energy Functional and Discretization. C.2
Shape Functions. C.3 Functional Minimization and Global Assembly.
Reference. Appendix D. Technical Data of Experimental Machines. D.1 Machine
IG1. D.2 Machine IG2. D.3 Prototype PMSG with Inset Rotor. Index.