OLEG WASYNCZUK, PhD, is a Professor of Electrical and Computer Engineering at Purdue University and serves as Chief Technical Officer of PC Krause and Associates Inc. He has authored or coauthored over 100 technical papers and two textbooks on electric machines. He is a Fellow of IEEE and was the 2008 recipient of the IEEE PES Cyril Veinott Electromechanical Energy Conversion Award.

STEVEN PEKAREK, PhD, is a Professor of Electrical and Computer Engineering at Purdue University and is Chair of the Power and Energy Devices Area. He is an Associate Editor for IEEE Transactions on Power Electronics and IEEE Transactions on Energy Conversion.

1 MAGNETIC AND MAGNETICALLY COUPLED CIRCUITS 1

2 ELECTROMECHANICAL ENERGY CONVERSION 49

3 DIRECT-CURRENT MACHINES 97

4 WINDINGS AND ROTATING MAGNETOMOTIVE FORCE 145

5 INTRODUCTION TO REFERENCE-FRAME THEORY 185

6 SYMMETRICAL INDUCTION MACHINES 213

7 SYNCHRONOUS MACHINES 287

8 PERMANENT-MAGNET ac MACHINE 345

9 STEPPER MOTORS 415

10 UNBALANCED OPERATION AND SINGLE-PHASE INDUCTION MOTORS 451

APPENDIX A ABBREVIATIONS, CONSTANTS, CONVERSIONS, AND IDENTITIES 477

APPENDIX B MATRIX ALGEBRA 481

APPENDIX C THREE-PHASE SYSTEMS 489

INDEX 493

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