A With the increased emphasis on climate change and reducing harmful emissions in the atmosphere, interest in power electronics converters and electric motor drives has led to significant new developments in renewable energy systems or electric propulsion. By and large, an electric machine and a power converter are required as a means of propulsion in transportation-related applications, and an electric generator and a power converter are indispensable parts of many wind-energy-based generation systems. This book resulted in five chapters covering some of the following topics: Linear and nonlinear control of three-phase and multiphase motor drive systems; Linear and nonlinear control of power electronics converters; Winding types of multiphase machines; and Fault-tolerant control of multiphase machines. The chapters published in this book, written by the worlds leading researchers in the field, will provide a further impetus to the developments in the field, stimulating new research endeavours in an area that will likely increase in importance in the forthcoming years.