Magnetic Field FE Analyze And Start_Performence Research On A New Type Switched Reluctance Motor

Compared to other motors, Switched Reluctance Motor provided with simpler and firmer structure, lower cost, high-fault function, high energy density, producing high torque when speed is low, and so on. Thus, now it is widely applied to Starter/Generator(S/G) system for aviation and automobile, and has great potential. Qua electromotor, its start-performance is one of the key techniques. In our project, SRM act as starter and generator, so the start-performance is more important. In this article we will research on a new type SRM, which has 12 poles in its stator and 10 poles in the rotor. The method used in analysis is Finite Element Method or FEM.Firstly, the basic theory of Switched Reluctance Motor was discussed in detail, and more, the design of 12/10 SRM structure parameters. Next the transient FEM and static models of SRM were created. Based on the models, several aspects were studied and discussed in detail by FEM software Maxwell 2D , such as zero speed state in CCC and position control methods, also analyzed the results carefulness. Then researched on the magnetic circuit characters of 12/10 SRM, compared the magnetic circuit characters with 8/6 and 6/4 SRM. Next changed the 12/10 SRM's magnet parameters which can influence its start-performance. Finally, on the base of the academic research, completed the design and facture of the stand of test on torque-angle performance of SRM, and tested the experiment machine's start-torque. At last, analyzed the results of some start-experiments.