Electronic Control of Switched Reluctance Machines (eBook)

TJE Miller (Herausgeber)

eBook Download: PDF

2001 | 1. Auflage
272 Seiten
Elsevier Science (Verlag)
978-0-08-050524-4 (ISBN)

Infos

Switched reluctance motors have steadily increased in commercial importance since their introduction in the early 1980's, while their technology - especially of their electronic control - has made great progress. Their unique characteristics introduce a delicate balance, in which the copper and iron are diminished in quantity, complexity and cost, in favour of a greater reliance on sophistication in the controller. Thus mastery of the control is the key challenge in the application of these machines.

This book is intended for engineer's in industry and in the large research community in electrical machines and drives. It introduces the techniques for controlling switched reluctance machines, starting from first principles and building up to the most advanced forms of sensorless control. It covers the recent advances in electronic control and includes aspects of motion control, automation, acoustic noise reduction and energy efficiency.

covers the recent changes in control technology
includes up-to-date equipment and methods
contains applications and case studies

Inhalt

Cover 1
Contents 6
Preface 12
Acknowledgements 14
Abbreviations 16
Chapter 1. Introduction 17
1.1 Definition and properties 17
1.2 The purpose and structure of this book 20
Chapter 2. Development history 22
2.1 Introduction 22
2.2 Early examples 23
2.3 Early electronic switching in the 1930s using mercury arc rectifiers and thyratrons 36
2.4 The arrival of the thyristor in the early 1960s. development of the swinging-field machine 38
2.5 Development since 1965 45
2.6 Summary 49
Chapter 3. Electromagnetic energy conversion 50
3.1 Definitions 50
3.2 Linear analysis of the voltage equation and torque production 53
3.3 Nonlinear analysis of torque production 59
3.4 Continuous torque production 63
3.5 Energy conversion analysis of the saturated machine 68
3.6 Obtaining the magnetization curves 73
3.7 Solution of the machine equations 74
3.8 Summary 76
Chapter 4. Designing for low noise 78
4.1 Noise in the switched reluctance machine 78
4.2 Noise-generation mechanisms and characterization 79
4.3 Methods for avoiding noisy operation 82
4.4 The stagger-tooth’ motor 85
4.5 Summary 89
Chapter 5. Average torque control 90
5.1 Introduction 90
5.2 Variation of current waveform with torque and speed 92
5.3 Current regulation 99
5.4 Regulation algorithms 108
5.5 Summary 112
Chapter 6. Instantaneous torque control 114
6.1 Introduction 114
6.2 Previous work and review 115
6.3 Theory of instantaneous torque control 117
6.4 Experimental results 129
6.5 Application of ITC in servo-system 137
6.6 Discussion and conclusion 148
Chapter 7. Sensorless control 149
7.1 Introduction 149
7.2 Classification of sensorless methods 150
7.3 Open-loop methods 154
7.4 Energized phase methods 155
7.5 Unenergized phase methods 167
7.6 Current gradient sensorless method 173
7.7 Sensorless method based on flux-linkage and current observers 177
7.8 Summary 184
Chapter 8. Torque ripple control in a practical application 187
8.1 General approach 187
8.2 The zero phase or anti-causal filter 192
8.3 Spatial frequency-domain analysis 197
8.4 Initial profile table generation 201
8.5 Torque ripple reduction algorithm 202
8.6 Experimental results at a single torque level 203
8.7 Ripple reduction at all torque levels 205
8.8 Acoustic noise 206
8.9 Summary 216
Chapter 9. Drive development and test 217
9.1 Introduction 217
9.2 Implementation technologies 218
9.3 Functionality options 220
9.4 Application-specific controller examples 222
9.5 Drive testing/optimization 235
9.6 Summary 242
Chapter 10. The switched reluctance generator 243
10.1 Principle 243
10.2 Review of switched reluctance generator control 248
10.3 Control method for a higher energy conversion effectiveness 251
10.4 PWM control 253
10.5 Design of a controller for the switched reluctance generator 255
10.6 Implementation of the controller 256
10.7 Fault-tolerant operation 257
Bibliography 268
Index 283

Produkt-Details

• Erscheint lt. Verlag: 18.5.2001
• Sprache: englisch
• Themenwelt: Technik ► Elektrotechnik / Energietechnik
• ISBN-10: 0-08-050524-4 / 0080505244
• ISBN-13: 978-0-08-050524-4 / 9780080505244