An electric drive is the electromechanical system that converts electrical energy to mechanical motion. Being a part of automatic equipment, it acts together with the driven object, such as a machine tool, metallurgical, chemical, or flying apparatus, domestic or medical device. Electric drives area includes applications in computers and peripherals, motor starters, transportation (electric and hybrid electric vehicles, subway, etc.), home appliances, textile and paper mills, wind generation systems, air-conditioning and heat pumps, compressors and fans, rolling and cement mills, and robotics. This book is intended primarily for the secondary-level and university-level learners of an electromechanical profile, including the bachelor and master students majored in electrical.