electric machinery and drives: an electromagnetics perspective

＂In electrical engineering, electric machine is a general term for machines using electromagnetic forces, such as electric motors, electric generators, and others. They are electromechanical energy converters: an electric motor converts electricity to mechanical power while an electric generator converts mechanical power to electricity. The moving parts in a machine can be rotating (rotating machines) or linear (linear machines). Besides motors and generators, a third category often included is transformers, which although they do not have any moving parts are also energy converters, changing the voltage level of an alternating current＂--

Nabeel A. O. Demerdash, PhD, IEEE Life Fellow, the recipient of the 1999 IEEE Nicola Tesla Technical Field Award, is an emeritus Professor in electrical engineering and the Director of the SEMPEED Consortium at Marquette University, USA. He has over 50 years of teaching and research experience in electric machines and drives in U.S. academia. He is the author and/or co-author of more than 250 technical articles, including more than 150 papers published in various IEEE Transactions and journals.

JiangBiao He, PhD, IEEE Senior Member, is an Assistant Professor and Endowed L. Stanley Pigman Faculty Fellow with the Department of Electrical and Computer Engineering at the University of Kentucky, USA. Before joined academia in 2019, he has worked in multiple large industry R&D centers, most recently as a Lead Engineer at GE Global Research in Niskayuna, New York. His research interest includes motor drives and power electronics, focusing on the applications of transportation electrifications and renewable energies. He has authored and co-authored over 120 technical articles in IEEE journals and conferences as well as 10 patents.

Hao Chen, PhD, IEEE Senior Member, is currently a Researcher with the Department of Electrical Engineering, Chalmers University of Technology, Sweden. His research interests include design and optimization of electric machines, power electronic drives, and motor controls. He has published around 50 papers in IEEE journals and conferences and 8 patents.