Modeling and fault simulation of dualchannel switched reluctance generator
YANG Hanyi, ZHU Xuezhong
(Automatic Department, University of Aeronautics and Astronautics, Nanjing 210000, China)
Abstract: Aiming at the problem that the mutual electromagnetic coupling between each channel in the dualchannel switched reluctance machine caused phase current distortion when phase failure occurred, an onechannel faulttolerant method was designed. Firstly, a simulation model of 12/8 dualchannel switched reluctance generator was established with JMAG simulation software based on fieldcircuit coupled finite element method. Secondly, most failures were analyzed theoretically. And it turned out that most failures lead to phasing failure. Then on the basis of the model, generating performance of the normal condition and the phase fault condition was simulated and analyzed by using JMAG software. At last, aiming at the phase fault condition, the onechannel faulttolerance method was presented and simulated. The results indicate that the onechannel faulttolerance method can improve the generating performance effectively. The modeling and faulttolerant method also has certain reference value to fault diagnosis and faulttolerant research of the kind of generating system.
Key words: dualchannel; switched reluctance generator; JMAG; finite element; fault