Modeling and Analysis of Doubly Fed Induction Generator Wind Energy Systems

Wind Energy Systems: Modeling, Analysis and Control with DFIG provides key information on machine/converter modelling strategies based on space vectors, complex vector, and further frequency-domain variables. It includes applications that focus on wind energy grid integration, with analysis and control explanations with examples.

For those working in the field of wind energy integration examining the potential risk of stability is key, this edition looks at how wind energy is modelled, what kind of control systems are adopted, how it interacts with the grid, as well as suitable study approaches.

Not only giving principles behind the dynamics of wind energy grid integration system, but also examining different strategies for analysis, such as frequency-domain-based and state-space-based approaches.

• Focuses on real and reactive power control
• Supported by PSCAD and Matlab/Simulink examples
• Considers the difference in control objectives between ac drive systems and grid integration systems

Researchers, academics, policy makers, and technical community involved in the development and implementation of sustainable energy systems and the related engineering disciplines

• Dedication
• Acknowledgments
• Chapter 1: Introduction

  • Abstract
  • 1.1 Wind Energy Integration Issues
  • 1.2 Objectives of This Book
  • 1.3 Structure of the Book
• Chapter 2: AC Machine Modeling

  • Abstract
  • 2.1 Space Vector and Complex Vector Explanation
  • 2.2 Derivation of an Induction Machine Modeling in Space Vector and Complex Vector
  • 2.3 DFIG Modeling
  • 2.4 Examples
• Chapter 3: Modeling of Doubly Fed Induction Generation (DFIG) Converter Controls

  • Abstract
  • 3.1 Rotor Flux-Oriented Induction Machine Control
  • 3.2 DFIG Rotor Side Converter Control
  • 3.3 GSC Control
  • 3.4 Complete DFIG Modeling Blocks
  • 3.5 Examples
• Chapter 4: Analysis of DFIG with Unbalanced Stator Voltage

  • Abstract
  • 4.1 Steady-State Harmonic Analysis of a DFIG
  • 4.2 Unbalanced Stator Voltage Drop Transient Analysis
  • 4.3 Converter Control to Mitigate Unbalance Effect
• Chapter 5: State-Space Based DFIG Wind Energy System Modeling

  • Abstract
  • 5.1 State-Space Model of a Series Compensated Network
  • 5.2 State-Space Model of DFIG Wind Energy System
  • 5.3 Integrated System Model
  • 5.4 Application of SSR Analysis
  • Appendix
• Chapter 6: Frequency-Domain Based DFIG Wind Energy Systems Modeling

  • Abstract
  • 6.1 Introduction of Impedance Model and Its Application in Stability and Resonance Detection
  • 6.2 Impedance Models of DFIG in Various Reference Frames
  • 6.3 Negative-Sequence DFIG Impedance Model
  • 6.4 Inclusion of DFIG into Torque-Speed Transfer Functions
  • 6.5 Examples
• Chapter 7: Multi-Machine Modeling and Inter-Area Oscillation Damping

  • Abstract
  • 7.1 Steady-State Calculation for a DFIG
  • 7.2 Interconnection of DFIG Model in Power