The electrification of the economy drives the need for efficient electrical machines. Permanent magnet machines, which use permanent magnets instead of windings for field excitation, achieve higher efficiency than conventional electrical machines. Multiphase machines, beyond the standard three-phase configuration, offer advantages such as lower torque pulsation, higher power density, and improved fault tolerance.
This book provides concise and systematic coverage of multiphase permanent magnet machines and their control techniques. It presents an overview of multiphase machines within the broader context of electrical machine technologies, highlighting their advantages and applications in wind turbine generators, electric vehicles, electric ships, aircraft, and train propulsion. Key topics include machine topologies, modelling, design, control strategies, pulse-width modulation, fault-tolerance, and methods for reducing current harmonics and torque ripples.
Written for industrial engineers, researchers, and PhD/post-doctoral students, the book guides readers from fundamental principles to state-of-the-art research outcomes. Chapters cover winding configurations, multiphase and dual-three-phase PMSMs, modulation strategies, field-oriented control, direct torque control, model reference control, sensorless control, and fault-tolerant control for multiphase PMSMs. Its logical progression makes it an essential resource for understanding and applying multiphase electrical machines in advanced electrified systems.
