Electrical Machines

Electrical Machines targets the undergraduate students of Electrical, Mechanical, Civil and Electronics & Instrumentation Engineering etc. The book discusses in detail electromagnetic systems, transformers, DC machines, induction machines, synchronous machines, special motors and generalized machine theory. It introduces the readers to the principles, techniques and current trends of electromechanical energy conversion (EMEC) devices. The book provides a strong foundation to the students when it deals with important concepts such as classes of squirrel cage motors, permanent magnetic materials and their applications, polyphase circuits and servo motors. In many contemporary electrical machines, one of the most significant components is power electronics. The invention of solid-state devices and embedded computing systems has resulted in the development of newer motors of modern era. The book includes a brief introduction to power electronics and machine control. A discussion on speed and torque characteristics has also been made a part of this book. It also deals with the recent developments in electrical machines' area of research like energy machines, electromagnets for controlled levitation and Hyperloop system. It encourages students to explore newer areas of electrical machines and learn simulation software, and state of art Finite Element Analysis software.

Chapter 1: Basic laws of Electro Mechanical Energy Conversion.- Chapter 2: Forces in an electromagnetic system.- Chapter 3: Transformer.- Chapter 4: Direct current Machines.- Chapter 5: Induction Machines.- Chapter 6: Synchronous Machines.- Chapter 7: Special motors and introduction to generalized machine theory.

Rakesh Kumar Srivastava received B.Tech. in electrical engineering, M.Tech. in electrical machines and drives, and Ph.D. in electrical machines (Linear Induction Motor) from the erstwhile Institute of Technology, Banaras Hindu University, Varanasi, India, in 1983, 1985, and 2000, respectively. He is currently working as a Professor in electrical machines and drives. He has published several research papers in international and national journals and conference proceedings. He has authored three books and edited IEEE Conference proceedings of UPCON 2016. His specializations are the electromagnetic field applied to electrical machines, linear induction machines, special purpose electrical machines, permanent magnets motors and generators, eddy current brake and electromagnetic launchers. Prof. Srivastava was Convener of the International Conference IEEE Uttar Pradesh Section International Conference on Electrical, Computer, and Electronics (UPCON) 2016, IIT (BHU), Varanasi. He was an Adviser and Founder of the IEEE Industry Applications Society Student Chapter at IIT (BHU). He is recipient of Prof. G. K. Dubey Memorial Life-time Achievement Award 2022 of IEEE UP Section.