1. Effect of pole number and slot number on performance of dual rotor permanent magnet wind power generator using ferrite magnets
- Author
-
Kai Shi, Sun Yuxin, Huangqiu Zhua, and Peifeng Xu
- Subjects
Physics ,Wind power ,business.industry ,020208 electrical & electronic engineering ,Cogging torque ,General Physics and Astronomy ,Mechanical engineering ,020302 automobile design & engineering ,02 engineering and technology ,Permanent magnet synchronous generator ,Flux linkage ,lcsh:QC1-999 ,Finite element method ,0203 mechanical engineering ,Magnet ,0202 electrical engineering, electronic engineering, information engineering ,Ferrite (magnet) ,Torque ,business ,lcsh:Physics - Abstract
Dual rotor permanent magnet (DRPM) wind power generator using ferrite magnets has the advantages of low cost, high efficiency, and high torque density. How to further improve the performance and reduce the cost of the machine by proper choice of pole number and slot number is an important problem to be solved when performing preliminarily design a DRPM wind generator. This paper presents a comprehensive performance comparison of a DRPM wind generator using ferrite magnets with different slot and pole number combinations. The main winding factors are calculated by means of the star of slots. Under the same machine volume and ferrite consumption, the flux linkage, back-electromotive force (EMF), cogging torque, output torque, torque pulsation, and losses are investigated and compared using finite element analysis (FEA). The results show that the slot and pole number combinations have an important impact on the generator properties.
- Published
- 2017