Electric Machine & Drives

This book is co-authored by some researchers from McMaster Institute for Automotive Research and Technology (MacAUTO) at McMaster University. The content is the result of several years of research and development at this center led by Prof. Ali Emadi, a well-known scientist in the area of electric machines, drives, and power electronics.

This book is among the most comprehensive books on SRMs and contains many interesting contents from the basic operation of SRMs to advanced topics such as NVH and cooling methods. Design and control and SRMs are covered extensively and many novel rotor/stator pole combinations are analyzed. Numerous high-quality pictures help us understand the concept more effectively. I strongly recommend it to anyone who is interested in SRMs.

This book covers many aspects of PM machines modeling and control. Two-axis models in different reference frames, the space vector model of PM machines, and the modeling of saturation and iron loss are presented. Various types of PM machines' control including Vector Control, Direct Torque Control, and Combined Control are discussed. Different strategies such as maximum torque per Ampere (MTPA), maximum torque per Volt (MTPV), and unity power factor (UPF) as well as the transition between these strategies are formulated in rotor and stator reference frames using informative and descriptive figures. Loss minimization control (LMC) and hybrid LMC-MTPA control are also presented which are hardly found in other motor control books. Some advanced topics such as predictive control, and deadbeat control are also briefly covered. Position and speed estimation methods are surveyed and various methods are explained helping readers to choose the proper method for sensor-less speed control of PMSMs in different applications. The last chapter of this book is dedicated to a very important topic; the variation of machine parameters. A comprehensive set of methods for motor parameter estimation either offline or online are presented.

I highly recommend this book to anyone who is interested in a concise yet comprehensive book on the control of permanent magnet machines written in an easy-to-understand way.