Electric Motors and Drives: Fundamentals, Types and Applications, Fifth Edition is intended primarily for non-specialist users or students of electric motors and drives, but many researchers and specialist industrialists have also acknowledged its value in providing a clear understanding of the fundamentals. It bridges the gap between specialist textbooks (too analytical for the average user) and handbooks (full of detail but with little insight) providing an understanding of how each motor and drive system works. The fifth edition has been completely revised, updated and expanded. All of the most important types of motor and drive are covered, including d.c., induction, synchronous (including synchronous reluctance and salient Permanent Magnet), switched reluctance, and stepping. There has been significant innovation in this area since the fourth edition, particularly in the automotive, aircraft and industrial sectors, with novel motor topologies emerging, including hybrid designs that combine permanent magnet and reluctance effects. We now include a physical basis for understanding and quantifying torque production in these machines, and this leads to simple pictures that illuminate the control conditions required to optimise torque. The key converter topologies have been brought together, and the treatment of inverter switching strategies expanded. A new chapter is devoted to the treatment of Field Oriented control, reflecting its increasing importance for all a.c. motor drives. A unique physically-based approach is adopted which builds naturally on the understanding of motor behaviour developed earlier in the book: the largely non-mathematical treatment dispels much of the mystique surrounding what is often regarded as a difficult topic.

Variable speed drives and the associated electrical motors play a central role in industry as well as the buildings in which we live, work and are entertained. They are arguably the most potent tool we have in the quest to save energy and thereby reduce our carbon footprint. Their rate of development has been rapid and today's product is in many ways unrecognisable from its ancestors of even twenty years ago. Development continues apace for the components used in the products, the products themselves and the ways in which the products are used. This book contains a great deal of practical information for drives and industrial engineers who use motors and drives. It is a comprehensive guide to the technology underlying drives and motors. It contains sufficient theory to give both user and student an insight into the design of these components and thereby the constraints and opportunities that exist. It has been radically revised and expanded from the previous edition to contain much new information. The practical grounding of this book makes it a reference work that has a place on the shelf of students as well as practising engineers.