Modularity techniques in high performance permanent magnet machines and applications

This paper reviews the modularity techniques in the stator manufacture of permanent magnet machines for different applications. Some basic concepts of modular machines are firstly introduced. Modular machines for several typical applications are then described in details, including domestic appliances, automobiles and electric vehicles, more electric aircrafts and civic applications, wind power generators, etc. Besides, the influence of manufacture tolerance gaps and flux barriers on the electromagnetic performance is discussed.