Control of Electric Machine Drive Systems

Informationen zum Autor Seung-Ki Sul , PhD, serves as the director of Electrical Engineering and Science Research Center at Seoul National University in Korea. A well-known world authority on the subject of electrical drives, Dr. Sul has lectured on this topic at Seoul National University for the last seventeen years. Previously, he served as the acting director and consultant at Yaskawa Electric Company in Japan. An IEEE Fellow since 2000, Dr. Sul holds fifteen domestic patents and eight international patents. Klappentext A unique approach to sensorless control andregulator design of electric drives Based on the author's vast industry experience and collaborative works with other industries, Control of Electric Machine Drive Systems is packed with tested, implemented, and verified ideas that engineers can apply to everyday problems in the field. Originally published in Korean as a textbook, this highly practical updated version features the latest information on the control of electric machines and apparatus, as well as a new chapter on sensorless control of AC machines, a topic not covered in any other publication. The book begins by explaining the features of the electric drive system and trends of development in related technologies, as well as the basic structure and operation principles of the electric machine. It also addresses steady state characteristics and control of the machines and the transformation of physical variables of AC machines using reference frame theory in order to provide a proper foundation for the material. The heart of the book reviews several control algorithms of electric machines and power converters, explaining active damping and how to regulate current, speed, and position in a feedback manner. Seung-Ki Sul introduces tricks to enhance the control performance of the electric machines, and the algorithm to detect the phase angle of an AC source and to control DC link voltages of power converters. Topics also covered are: Vector control Control algorithms for position/speed sensorless drive of AC machines Methods for identifying the parameters of electric machines and power converters The matrix algebra to model a three-phase AC machine in d-q-n axes Every chapter features exercise problems drawn from actual industry experience. The book also includes more than 300 figures and offers access to an FTP site, which provides MATLAB programs for selected problems. The book's practicality and real-world relatability make it an invaluable resource for professionals and engineers involved in the research and development of electric machine drive business, industrial drive designers, and senior undergraduate and graduate students. Zusammenfassung Based on the author's industry experience and collaborative works with other industries, Control of Electric Machine Drive System is packed with implemented, tested, and verified ideas that relate to everyday problems in the field. Inhaltsverzeichnis Preface xiii 1 Introduction 1 1.1 Introduction 1 1.1.1 Electric Machine Drive System 4 1.1.2 Trend of Development of Electric Machine Drive System 5 1.1.3 Trend of Development of Power Semiconductor 7 1.1.4 Trend of Development of Control Electronics 8 1.2 Basics of Mechanics 8 1.2.1 Basic Laws 9 1.2.2 Force and Torque 9 1.2.3 Moment of Inertia of a Rotating Body 11 1.2.4 Equations of Motion for a Rigid Body 13 1.2.5 Power and Energy 17 1.2.6 Continuity of Physical Variables 18 1.3 Torque Speed Curve of Typical Mechanical Loads 18 1.3.1 Fan, Pump, and Blower 18 1.3.2 Hoisting Load; Crane, Elevator 20 1.3.3 Traction Load (Electric Vehicle, Electric Train) 21 1.3.4 Tension Control Load 23 Problems 24 References 35 2 Basic Structure and ...

Autorentext

Seung-Ki Sul, PhD, serves as the director of Electrical Engineering and Science Research Center at Seoul National University in Korea. A well-known world authority on the subject of electrical drives, Dr. Sul has lectured on this topic at Seoul National University for the last seventeen years. Previously, he served as the acting director and consultant at Yaskawa Electric Company in Japan. An IEEE Fellow since 2000, Dr. Sul holds fifteen domestic patents and eight international patents.

Klappentext

A unique approach to sensorless control andregulator design of electric drives Based on the author's vast industry experience and collaborative works with other industries, Control of Electric Machine Drive Systems is packed with tested, implemented, and verified ideas that engineers can apply to everyday problems in the field. Originally published in Korean as a textbook, this highly practical updated version features the latest information on the control of electric machines and apparatus, as well as a new chapter on sensorless control of AC machines, a topic not covered in any other publication.

The book begins by explaining the features of the electric drive system and trends of development in related technologies, as well as the basic structure and operation principles of the electric machine. It also addresses steady state characteristics and control of the machines and the transformation of physical variables of AC machines using reference frame theory in order to provide a proper foundation for the material.

The heart of the book reviews several control algorithms of electric machines and power converters, explaining active damping and how to regulate current, speed, and position in a feedback manner. Seung-Ki Sul introduces tricks to enhance the control performance of the electric machines, and the algorithm to detect the phase angle of an AC source and to control DC link voltages of power converters. Topics also covered are:

• Vector control

• Control algorithms for position/speed sensorless drive of AC machines

• Methods for identifying the parameters of electric machines and power converters

• The matrix algebra to model a three-phase AC machine in d-q-n axes

Every chapter features exercise problems drawn from actual industry experience. The book also includes more than 300 figures and offers access to an FTP site, which provides MATLAB programs for selected problems. The book's practicality and real-world relatability make it an invaluable resource for professionals and engineers involved in the research and development of electric machine drive business, industrial drive designers, and senior undergraduate and graduate students.

Zusammenfassung
Based on the author's industry experience and collaborative works with other industries, Control of Electric Machine Drive System is packed with implemented, tested, and verified ideas that relate to everyday problems in the field.

Inhalt

Preface xiii

1 Introduction 1

1.1 Introduction 1

1.1.1 Electric Machine Drive System 4

1.1.2 Trend of Development of Electric Machine Drive System 5

1.1.3 Trend of Development of Power Semiconductor 7

1.1.4 Trend of Development of Control Electronics 8

1.2 Basics of Mechanics 8

1.2.1 Basic Laws 9

1.2.2 Force and Torque 9

1.2.3 Moment of Inertia of a Rotating Body 11

1.2.4 Equations of Motion for a Rigid Body 13

1.2.5 Power and Energy 17

1.2.6 Continuity of Physical Variables 18

1.3 Torque Speed Curve of Typical Mechanical Loads 18

1.3.1 Fan, Pump, and Blower 18

1.3.2 Hoisting Load; Crane, Elevator 20

1.3.3 Traction Load (Electric Vehicle, Electric Train) 21

1.3.4 Tension Control Load 23

Problems 24

References 35

2 Basic Structure and Modeling of Electric Machines and Power Converters 36

2.1 Structure and Modeling of DC Machine 36

2.2 Analysis of Steady-State Operation 41

2.2.1 Separately Excited Shunt Machine 42

2.2.2 Series Excited DC Machine 45

2.3 Analysis of Transient State of DC Machine 46

2.3.1 Separately Excited Shunt Machine 47

2.4 Power Electronic Circuit to Drive DC Machine 50

2.4.1 Static Ward-Leonard System 51

2.4.2 Four-Quadrants Chopper Syst…