This clear and concise advanced textbook is a comprehensive introduction to power electronics. It considers the topics of analogue electronics, electric motor control and adjustable speed electrical drives, both a.c. and d.c. In recent years, great changes have taken place in the types of semiconductor devices used as power switches in engineering applications. In this second edition of a popular text, a further completely new chapter has been added, dealing with the application of PWM techniques in induction motor speed control. The chapters dealing with electronic switching devices and with adjustable speed drives have been entirely rewritten, to ensure the text is completely up-to-date. With numerous worked examples, exercises, and the many diagrams, advanced undergraduates and postgraduates will find this a readable and immensely useful introduction to the subject of power electronics.
Preface to second edition; Preface to first edition; List of principal symbols; 1. Power switching theory; 2. Switching devices and control electrode requirements; 3. System realisation; 4. Adjustable speed drives; 5. DC motor control using a DC chopper; 6. Controlled bridge rectifiers with DC motor load; 7. Three-phase naturally-commutated bridge circuit as rectifier or inverter; 8. Single-phase voltage controllers; 9. Three-phase induction motor with constant frequency supply; 10. Induction motor slip energy recovery; 11. Induction motor speed control by the use of Adjustable-Voltage, Adjustable-Frequency, Step-Wave Inverters; 12. Induction motor speed control by the use of adjustable frequency PWM inverters; Appendix: General expressions for Fourier series; Answers to problems; References and Bibliography; Index.
