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Informationen zum Autor OLIMPO ANAYA-LARA, University Of Strathclyde, Glasgow, UK NICK JENKINS, Cardiff University. UK JANAKA EKANAYAKE, Cardiff University, UK PHILL CARTWRIGHT, Rolls-Royce plc. UK MIKE HUGHES, Consultant and Imperial College London, UK Klappentext 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. Zusammenfassung 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. Inhaltsverzeichnis About the Authors xi Preface xiii Acronyms and Symbols xv 1 Electricity Generation from Wind Energy 1 1.1 Wind Farms 2 1.2 Wind Energy-generating Systems 3 1.2.1 Wind Turbines 3 1.2.2 Wind Turbine Architectures 7 1.3 Wind Generators Compared with Conventional Power Plant 10 1.3.1 Local Impacts 11 1.3.2 System-wide Impacts 13 1.4 Grid Code Regulations for the Integration of Wind Generation 14 References 17 2 Power Electronics for Wind Turbines 19 2.1 Soft-starter for FSIG Wind Turbines 21 2.2 Voltage Source Converters (VSCs) 21 2.2.1 The Two-level VSC 21 2.2.2 Square-wave Operation 24 2.2.3 Carrier-based PWM (CB-PWM) 25 2.2.4 Switching Frequency Optimal PWM (SFO-PWM) 27 2.2.5 Regular and Non-regular Sampled PWM (RS-PWM and NRS-PWM) 28 2.2.6 Selective Harmonic Elimination PWM (SHEM) 29 2.2.7 Voltage Space Vector Switching (SV-PWM) 30 2.2.8 Hysteresis Switching 33 2.3 Application of VSCs for Variable-speed Systems 33 2.3.1 VSC with a Diode Bridge 34 2.3.2 Back-to-Back VSCs 34 References 36 3 Modelling of Synchronous Generators 39 3.1 Synchronous Generator Construction 39 3.2 The Air-gap Magnetic Field of the Synchronous Generator 39 3.3 Coil Representation of the Synchronous Generator 42 3.4 Generator Equations in the dq Frame 44 3.4.1 Generator Electromagnetic Torque 47 3.5 Steady-state Operation 47 3.6 Synchronous Generator with Damper Windings 49 3.7 Non-reduced Order Model 51 3.8 Reduced-order Model 52 3.9 Control of Large Synchronous Generators 53 3.9.1 Excitation Control 53 3.9.2 Prime Mover Control 55 References 56 4 Fixed-speed Induction Generator (FSIG)-based Wind Turbines 57 4.1 Induction Machine Construction 57 4.1.1 Squirrel-cage Rotor 58 4.1.2 Wound Rotor 58 4.2 Steady-state Characteristics 58 4.2.1 Variations in Generator Terminal Voltage 61 4.3 FSIG Configurations for Wind Generation 61 4.3.1 Two-speed Operation ...
