Permanent magnet flux switching machines — Topologies, analysis and optimization

Permanent magnet flux switching machines have been attracting revived research interests for various applications over the last decades. Those machines not only inherit most merits from the conventional permanent magnet synchronous machines but also possess a simple passive and hence robust rotor. In this paper, a comprehensive overview on the evolution of new topologies for the permanent magnet flux switching (PMFS) rotary and linear machines is presented, and performance analysis and optimization of such machines are reviewed. Particular emphasis has been placed on practical techniques of torque/force pulsation analysis and reduction. The pros and cons of those PMFS machines are appraised so as to highlight the prospective applications.