Flux-Switching Permanent Magnet Machines: A Review of Opportunities and Challenges-Part II: Design Aspects, Control, and Emerging Trends

Flux-switching permanent magnet (FSPM) machines have received an intense amount of research interest in recent years, due to their advantages of high torque/power density, favorable thermal management, as well as passive and robust rotor structure. The purpose of this two-part companion articles is to provide a comprehensive overview of FSPM machines in terms of opportunities and challenges. In the early part of this two-part series, the operating principle, the modeling methods, the various machine topologies of FSPM machines, as well as the comparison with other PM machines, have been analyzed and investigated. Building upon Part (I), this article covers the analysis and design of winding configurations, the practical techniques to minimize the cogging torque and torque ripple, the control strategies, the technical challenges, as well as the emerging trends of FSPM machines. Moreover, the key features of the FSPM machines, including the merits and demerits of such machines as well as their associated techniques, are highlighted and summarized.