Abstract：The torque performance of the switched reluctance motor(SRM) used in electric vehicles is very important for improving the dynamic and comfort performance of the vehicle. The double-phase-excitation mode of the SRM is more effective to reduce the torque ripple and increase the output torque than the one-phase-excitation mode. But the phase torque output of the motor is asymmetrical when the double-phase-excitation mode with the traditional winding way works, which can directly increase the SRM torque ripple. So, a novel symmetrical double-phase-excitation mode for the SRM is proposed in this paper in order to reduce the torque ripple and increase the output torque. Then the finite element(FE) model is established based on the novel excitation mode in the Ansys environment and the torque characteristic is obtained and compared with the traditional one- phase-excitation mode. Finally, an experiment for the torque performance is designed based on the proposed novel mode. And the experimental results show that the proposed SRM novel excitation mode is effective.
[1] 郑洪涛, 蒋静坪. 开关磁阻电机高性能转矩控制策略研究[J]. 电工技术学报, 2005, 20(9): 24-28. Zheng Hongtao, Jiang Jingping. Study on high-grade torque control strategies for switched reluctance motor[J]. Transactions of China Electrotechnical Society, 2005, 20(9): 24-28. [2] 朱曰莹, 王大方, 赵桂范, 等. 电动车用开关磁阻电机转矩控制器设计与优化[J]. 电机与控制学报, 2010, 14(2): 47-59. Zhu Yueying, Wang Dafang, Zhao Guifan, et al. Simulation on optimization of torque controller for switched reluctance motor used in electric vehicles[J]. Electric Machines and Control, 2010, 14(2): 47-59. [3] Rahman K M, Schulz S E. High performance fully digital switched reluctance motor controller for vehicle propulsion[J]. IEEE Transactions on Industry Application, 2002, 38(4): 1062-1071. [4] Nihat Inanc, Veysel Ozbulur. Torque ripple minimiza- tion of a switched reluctance motor by using continuous sliding mode control technique[J]. Eletric Power Systems Research, 2003, 66(3): 241-251. [5] Xue X D, Cheng Kwe, Lin J K. Optimal control method of motoring operation for SRM drives in electric vehicles[J]. IEEE Transactions on Vehicular Technology, 2010, 59(3): 1191-1204. [6] Zhu Yueying, Zhao Guifan, Wang Dafang. Design and two-objective simultaneous optimization of torque controller for switched reluctance motor in electric vehicle[J]. Journal of Harbin Institute of Technology, 2011, 18(5): 99-105. [7] Jin Woo Ahn, Seok Gyu Oh, Jae Won Moon, et al. A three phase switched reluctance motor with two phase excitation[J]. IEEE Transactions on Industry Application, 1999, 35(5): 1067-1074. [8] Amit K J, Ned M. Dynamic modeling, experimental characterization, and verification for SRM operation with simultaneous two-phase excitation[J]. IEEE Transactions on Industrial Electronics, 2006, 53(4): 1238-1249. [9] 郭伟, 詹琼华, 丘亦慧. 一种新型两相励磁开关磁阻电机驱动系统静态特性[J]. 中国电机工程学报,2002, 22(12): 91-96. Guo Wei, Zhan Qionghua, Qiu Yihui. Static performance of a new SRD system with two-phase excitation[J]. Proceedings of the CSEE, 2002, 22(12): 91-96. [10] 童怀. 新型两相励磁开关磁阻电机驱动系统的稳态特性分析[J]. 中国电机工程学报, 2005, 25(10): 149-153. Tong Huai. Steady state analysis of a new SRD system with two-phase excitation[J]. Proceedings of the CSEE, 2005, 25(10): 149-153. [11] 高洁, 孙鹤旭, 何林, 等. 四相SRM驱动系统两相励磁功率因数校正研究[J]. 电机与控制学报. 2011, 15(8): 34-39. Gao Jie, Sun Hexu, He Lin, et al. Power factor correction for 4 phases switched reluctance motors drive system under two-phase excitation[J]. Electic Machines and Control, 2011, 15(8): 34-39. [12] Singla B R, Marwaha S, Marwaha A. Simulation of faults of switched reluctance motor by using FEM[C]. The IASTED Conference on Power and Energy Systems, Thailand, 2007: 2-4. [13] 丁文, 梁得亮. 一种开关磁阻电机非线性磁链与转矩建模方法[J]. 电机与控制学报, 2008, 12(6): 659-665. Ding Wen, Liang Deliang. Novel method of modeling nonlinear flux linkage and torque for switched reluctance motor[J]. Electric Machines and Control, 2008, 12(6): 659-665. [14] Zhang Jinhui, Arthur V Radun. A new method to measure the switched reluctance motor's flux[J]. IEEE Transactions on Industry Applications, 2006, 42(5): 1171-1176. [15] Gobbi R, Sahoo N C, Vejian R. The measurement of mechanical parameters of a switched reluctance motor drive system[J]. Measurement Science and Technology, 2007, 18: 3636-3644. [16] Adrian David Cheok, Wang Zhongfang. Flux linkage measurement method for switched reluctance motors and inductor/transformers using a real-time DSP system[J]. International Journal of Electronics, 2010, 89(8): 625-644. [17] 郑易, 孙鹤旭, 刘海涛. 开关磁阻电机磁链特性测量方法及装置[J]. 河北工业大学学报, 2007, 36(6): 37-40. Zheng Yi, Sun Hexu, Liu Haitao. A measurement method and equipment of magnetic characteristics of SRM[J]. Journal of Hebei University of Technology, 2007, 36(6): 37-40.
2014, Vol. 29 
