Electric Drives (An Integrative Approach)
Author:  Ned Mohan
List Price:  $150.00
This new textbook, by a professor of the University of Minnesota, presents an original concept of teaching Electric Drives in very easy and innovative way, without the prerequisite of electric machine theory. It has altogether 17 chapters covering the topics of introduction to electric drive systems, understanding mechanical system requirements in electric drives, review of basic electric circuits, basic understanding of switch-mode power electronic converters in electric drives, magnetic circuits, basic principles of electromechanical energy conversion, DC motor drives and electronically-commutated motor drives, designing feedback controllers for motor drives, introduction to AC machines and space vectors, sinusoidal permanent magnet AC drives, induction motors under balanced sinusoidal steady state operation, speed controlled induction motor drives, vector control of induction motor drives - a qualitative examination, reluctance drives (stepper motors and switched-reluctance motors), energy efficiency of electric drives and inverter-motor interactions, powering of electrical drives - power quality issues, and finally ancillary issues in drives such as sensors, asics and micro-controllers.

The presentation of technical material is extremely simple with the right amount of mathematics for undergraduate students. It requires only minimum prerequisites of junior-level course's) in network and systems, and a course in electromagnetic field theory (usually included in Physics). This book provides a very fundamental treatment of a broad range of topics that make up the study of electric drives: electrical machines, power electronics, control, and interaction with power systems, always with an eye towards applications.

The original contribution of this book, based on input from about 250 participants of four NSF-sponsored Faculty Workshops organized by Professor Mohan at the University of Minnesota (1991, 1994, 1997, 1998), consists of:

    • The building-block approach for describing power electronic converters used in modern drives.
    • Making space-vector theory approachable to undergraduates - as easy as using phasors. This is achieved by utilizing the physical basis on which ac machines operate and will guarantee continuity to advanced (more mathematically-based) courses.

Each chapter is supplemented with the summary in the form of a large number of non-numerical review questions, good selected problems and references. 

I strongly recommend this textbook to engineering educators for very wide audience of students from electrical and mechanical departments. I believe that this new book by N. Mohan will certainly be at least as successful as that co-authored by him - "Power Electronics: Converters, Applications and Design" published by John Wiley & Sons in 1989 and 1995 (2nd edition).

by Marian P. Kazmierkowski Warsaw University of Technology, Poland


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