Advances in Control Technologies for Brushless Doubly-fed Induction Generators

✍ Scribed by Yi Liu, Wei Xu

• Publisher: Springer
• Year: 2022
• Tongue: English
• Leaves: 418
• Edition: 1st ed. 2022
• Category: Library

✦ Synopsis

This book presents advances in control technologies for efficient operation of the brushless doubly-fed induction generator (BDFIG). For robust and low-cost operation of BDFIGs, it is required to keep high-quality output voltage and eliminate the speed/position encoder under different loads and operation conditions. Some advanced control technologies, from the authors’ latest work on these topics, are presented to achieve this goal with simple and accurate texts, illustrations, and tables. The qualified outcomes obtained from this book assure the high-performance operation of BDFIGs and also give the readers a straight insight toward challenges in this research area in the future.

✦ Table of Contents

Foreword
Preface
Contents
About the Authors
Abbreviations
Nomenclature
Superscripts
Subscripts
List of Figures
List of Tables
1 Introduction
1.1 Introduction to Brushless Doubly-Fed Generators
1.2 Advances in Control Technologies for Grid-Connected Power Generation
1.2.1 Grid-Connected Power Generation Under Normal Grid
1.2.2 Grid-Connected Power Generation Under Faulty Grid
1.3 Advances in Control Technologies for Standalone Power Generation
1.3.1 Standalone Power Generation with Normal Loads
1.3.2 Standalone Power Generation with Special Loads
1.4 Advances in Control Technologies for Sensorless Control
1.4.1 Without Speed Observer
1.4.2 With Speed Observer
1.5 Organization of the Book
References
2 Mathematical Modelling, Operation Characteristics and Basic Control Method of BDFIG
2.1 Introduction
2.2 Dynamic Models of BDFIG
2.2.1 abc-Axis Model of BDFIG
2.2.2 dq0-Axis Dynamic Model of BDFIG
2.3 Steady-state Models of BDFIG
2.3.1 Conventional Π-type Steady-state Model
2.3.2 Steady-state Model with Simplified Inner Core
2.3.3 Steady-state T-type Model
2.4 Operation Characteristics of the BDFIG Drive System
2.4.1 Construction of the BDFIG Drive System
2.4.2 Operation Modes
2.4.3 Power Flow Characteristics
2.5 Basic Control Method for the Standalone BDFIG
2.5.1 CW Current Control
2.5.2 Design of the DVC Control Strategy
2.5.3 Performance Analysis
2.6 Summary
References
3 Unbalanced and Low-Order Harmonic Voltages Rejection for Standalone BDFIGs
3.1 Introduction
3.2 Analysis of the Sources of Unbalanced and Low-Order Harmonic Voltages
3.2.1 Analysis Under Unbalanced Load
3.2.2 Analysis Under Three-Phase Nonlinear Load
3.2.3 Analysis Under Unbalanced Plus Nonlinear Load
3.2.4 Analysis Under Single-Phase Nonlinear Load
3.3 Unbalanced Voltage Compensation
3.3.1 Conventional Direct Voltage Control Scheme
3.3.2 Design of Negative-Sequence Voltage Compensator
3.3.3 Simulation Results
3.3.4 Experimental Results
3.4 Low-Order Harmonic Voltage Compensation
3.4.1 Design of Low-Order Harmonic Voltage Compensator
3.4.2 Simulation Results
3.4.3 Experimental Results
3.5 Dual-Resonant Controller for Compensating Unbalanced and Low-Order Harmonic Voltages
3.5.1 Design of Dual-Resonant Controller
3.5.2 Simulation Results
3.5.3 Experimental Results
3.6 Summary
References
4 Advanced Control Strategies for Standalone BDFIGs with Heavy Load Disturbance
4.1 Introduction
4.2 Vector Control Strategy with Transient Current Compensation
4.2.1 Transient Feedforward Compensation of CW Current
4.2.2 Experimental Results
4.3 Cooperative Compensation Strategy Based on Dual Power Converters
4.3.1 Compensation Strategy Based on MSC
4.3.2 Compensation Strategy Based on LSC
4.3.3 Cooperative Compensation Strategy Based on Dual Power Converters
4.3.4 Experimental Results
4.4 Summary
References
5 Predictive Control for Standalone BDFIGs
5.1 Introduction
5.2 Model Predictive Current Control (MPCC) for Standalone BDFIGs
5.2.1 Design of MPCC for CW Current
5.2.2 Simulation Results
5.3 Nonparametric Predictive Current Control (NPCC) for Standalone BDFIGs
5.3.1 CW Current Prediction Without Machine Parameters
5.3.2 Implementation of NPCC-Based Control Scheme
5.3.3 Simulation Results
5.3.4 Experimental Results
5.4 Summary
References
6 Rotor Position and Speed Observers of BDFIGs
6.1 Introduction
6.2 Rotor Position Observer Based on the Phase-Axis Relationship of BDFIG
6.2.1 Theoretical Analysis
6.2.2 Simulation Results
6.3 Rotor Position Observer Based on the Space-Vector Model of BDFIG
6.3.1 Design Procedure
6.3.2 Stability Analysis
6.3.3 Simulation Results
6.3.4 Experimental Results
6.4 Improved Rotor Speed Observer for Standalone BDFIG with Unbalanced and Nonlinear Loads
6.4.1 Scheme Design
6.4.2 Parameters Tuning
6.4.3 Experimental Results
6.5 Summary
References
7 Model Reference Adaptive System Based Sensorless Control for BDFIGs
7.1 Introduction
7.2 MRAS Sensorless Control Based on CW Power Factor
7.2.1 PW Field-Oriented Control for Sensorless Voltage Control of BDFIGs
7.2.2 Design Procedure of the Proposed Control Method
7.2.3 Simulation Results
7.2.4 Experimental Results
7.3 MRAS Sensorless Control Based on PW Flux
7.3.1 Control Scheme Based on αβ-Axis PW Flux
7.3.2 Control Scheme Based on dq-Axis PW Flux
7.3.3 Simulation Results
7.3.4 Experimental Results
7.4 MRAS Sensorless Control Based on CW Flux
7.4.1 Control Scheme Based on αβ-Axis CW Flux
7.4.2 Control Scheme Based on Dq-Axis CW Flux
7.4.3 Simulation Results
7.4.4 Experimental Results
7.5 Summary
References
8 Conclusions and Future Works
8.1 Conclusions
8.2 Future Works
Appendix
A.1 Structure of BDFIG Experimental Platforms
A.2 60-kVA BDFIG Experimental Platform
A.3 30-kVA BDFIG Experimental Platform
A.4 90-kVA BDFIG Experimental Platform
A.5 3-kVA BDFIG Experimental Platform
A.6 5-kVA BDFIG Experimental Platform