Principles and Control of Multiphase Permanent Magnet Machines

The electrification of the economy entails the development and optimization of efficient electric machines and motors. Permanent magnet motors use permanent magnets, rather than windings, for induction. They are more efficient than induction motors for high-efficiency applications. Multiphase motors and machines, as compared to 3-phase-machines, have advantages including lower torque pulsation, higher power density, and better fault tolerance.

This book offers concise and systematic coverage of multiphase permanent magnet machines and control techniques. It gives an overview of multiphase machines and control techniques in the context of various electrical machine technologies and presents the advantages of multiphase electrical machines. Applications are covered, including wind turbine generators, electric vehicles, electric ship and aircraft and train propulsion, and machine topologies, modelling, control, pulse-width-modulation, fault-tolerance, and reduction of current harmonics and torque ripples are considered.

Principles and Control of Multiphase Permanent Magnet Machines has been written for industrial engineers and researchers, including PhD and post-doctoral research students working on electrical machines and drives, as well as for researchers working on electric vehicles, wind power generators, aerospace, electric ships and trains. After a general introduction, chapters cover, winding configurations, dual-three-phase permanent magnet synchronous machines (PMSMs), modelling, design and modulation strategies for multiphase PMSMs, control, and also fault tolerant control for multiphase PMSMs. The logical progression from basic knowledge to state-of-the art research outcomes helps readers understand and use multiphase electric machines.