Energy-Efficient Electric Motors, Third Edition, Revised and Expanded

by Emadi; Ali

• ISBN13: 9780824757359
• ISBN10: 0824757351
• Edition: 3rd
• Format: Hardcover
• Copyright: 2004-08-30
• Publisher: CRC Press

Summary

This detailed reference provides guidelines for the selection and utilization of electric motors for improved reliability, performance, energy-efficiency, and life-cycle cost-reflecting the state-of-the-science in the field, as well as recent developments in control electronics, the economics of energy-efficient motors and systems, and advanced power electronic drivers.

Author Biography

Ali Emadi is director of the Grainger Power Electronics and Motor Drives Laboratories, Illinois Institute of Technology (IIT), Chicago.

Table of Contents

Preface	v
Induction Motor Characteristics	1	(31)
Three-Phase Induction Motors	1	(16)
Single-Phase Induction Motors	17	(15)
Energy-Efficient Motors	32	(32)
Standard Motor Efficiency	32	(3)
Why More Efficient Motors?	35	(1)
What Is Efficiency?	35	(9)
What Is an Energy-Efficient Motor?	44	(4)
Efficiency Determination	48	(9)
Motor Efficiency Labeling	57	(2)
NEMA Energy-Efficient Motor Standards	59	(5)
Fundamentals of Electric Motor Drives	64	(26)
Power Electronic Devices	65	(2)
Electric Motor Drives	67	(1)
Single-Phase, Half-Wave, Controlled Rectifier	67	(3)
Single-Phase, Full-Wave, Controlled Rectifier	70	(3)
Phase-Controlled Induction Motor Drives	73	(6)
Control of DC Motors Using DC/DC Converters	79	(11)
Selected Readings	88	(2)
The Power Factor	90	(38)
What Is the Power Factor?	90	(1)
The Power Factor in Sinusoidal Systems	91	(2)
Why Raise the Power Factor?	93	(2)
How to Improve the Power Factor	95	(14)
The Power Factor with Nonlinear Loads	109	(5)
Harmonics and the Power Factor	114	(4)
Power Factor Motor Controllers	118	(10)
Applications of Induction Motors	128	(40)
General Discussion	128	(8)
Varying Duty Applications	136	(3)
Voltage Variation	139	(6)
Voltage Unbalance	145	(6)
Overmotoring	151	(2)
Polyphase Induction Motors Supplied by Adjustable-Frequency Power Supplies	153	(15)
Adjustable-Speed Drives and Their Applications	168	(20)
The Importance of Electric Motor Drives	170	(2)
Motor Drive Parameters	172	(2)
The Impact of Motor Efficiency	174	(3)
Current Motor Technology	177	(1)
Advantages of Variable-Speed Motors	178	(1)
Government Regulation	179	(6)
Adjustable-Speed Drive Applications	185	(3)
Selected Readings	187	(1)
Induction Motors and Adjustable-Speed Drive Systems	188	(82)
Energy Conservation	188	(3)
Adjustable-Speed Systems	191	(59)
Applications to Fans	250	(8)
Applications to Pumps	258	(9)
Applications to Constant-Torque Loads	267	(3)
Brushless DC Motor Drives	270	(22)
BLDC Machine Configurations	272	(5)
Modeling	277	(4)
BLDC Power Electronic Drivers	281	(3)
Sensorless Techniques for BLDC Motor Drives	284	(8)
Selected Readings	288	(4)
Switched Reluctance Motor Drives	292	(66)
History of Switched Reluctance Machine	295	(2)
Fundamentals of Operation	297	(5)
Machine Configurations	302	(5)
Dynamic Modeling of SRMs	307	(9)
Control of SRMs	316	(9)
Other Power Electronic Drivers	325	(14)
Advantages and Disadvantages	339	(9)
Generative Mode of Operation	348	(4)
Energy Conversion Cycle	352	(6)
Selected Readings	354	(4)
Utility Interface Issues	358	(27)
ASD Example	363	(4)
Power Factor Correction Methods	367	(8)
Active Power Filters	375	(10)
Selected Readings	381	(4)
Index	385