Abstract：In terms of electrical machine, different winding connection types may lead to varied winding currents. Consequently, various magnetic fields are produced by different magnetic circuit structures. 8/6 outer-rotor switched reluctance motor (SRM) has two main magnetic circuit structures. Distinctions between the two magnetic circuit structures can influence the magnetic resistance and flux, which are crucial to the performance of electrical machine. Comparisons of the two typical magnetic structures(short-path magnetic circuit and long-path magnetic circuit) are showed under different conduction modes. Particularly, two special positions (when axes of rotor and stator are coincident and axe of rotor owing a 30-degree relative to the stator axe) are discussed in detail. Also, the finite-element analyses for 8/6 outer-rotor switched reluctance motor (SRM) are performed by using Ansoft/Maxwell. Both the theoretical analyses and simulation results prove the comprehensive performance of short-path magnetic circuit structure of SRM is superior to the long one.
王丹, 方红伟. 外转子开关磁阻电机磁路结构有限元分析[J]. 电工技术学报, 2013, 28(1增): 352-357.
Wang Dan, Fang Hongwei. Finite-Element Analysis of Outer-Rotor SRM Magnetic Structure. Transactions of China Electrotechnical Society, 2013, 28(1增): 352-357.
[1] 薛梅, 夏长亮, 王慧敏, 等. 基于DSP的开关磁阻电机磁链特性检测与神经网络建模[J]. 电工技术学报, 2011, 26(2): 68-73. Xue Mei, Xia Changliang, Wang Huimin, et al. Flux linkage characteristic measurement based on DSP and artificial neural network modeling for switched reluctance motor[J]. Transactions of China Electrotechnical Society, 2011, 26(2): 68-73. [2] 吴红星. 开关磁阻电机系统理论与控制技术[M]. 北京: 中国电力出版社, 2010. [3] 孙玉坤, 周云红, 嵇小辅. 磁悬浮开关磁阻电机的神经网络逆解耦控制[J]. 中国电机工程学报, 2011, 31(30): 117-121. Sun Yukun, Zhou Yunhong, Ji Xiaofu. Decoupling control of bearingless switched reluctance motor with neural network inverse system method[J]. Proceedings of the CSEE, 2011, 31(30): 117-121. [4] 曹鑫, 邓智泉, 杨钢, 等. 新型无轴承开关磁阻电机双相导通数学模型[J]. 电工技术学报, 2006, 21(4): 50-56. Cao Xin, Deng Zhiquan, Yang Gang, et al. Novel mathematical model of bearingless switched reluctance motors with two-phase excitation[J]. Transactions of China Electrotechnical Society, 2006, 21(4): 50-56. [5] Fang Hongwei, Xiao Zhaoxia, Zhai Weiqiang. Control of SRG for micro-turbine applications under inverter switch open[C]. International Conference on Computer and Information Application, Tianjin, 2010: 178-181. [6] Cardenas R, Pena R, Perez M, et al. Power smoothing using a flywheel driven by a switched reluctance machine[J]. IEEE Transactions on Industrial Electronics, 2006, 53(4): 1086-1093. [7] Krishnan R. Switched reluctance motor drives: modeling, simulation, analysis, design and application[M]. Florida: CRC Press, 2001. [8] Chen G H, Tseng K J. Design of wheel motor using Maxwell 2D simulation[C]. International Conference on Energy Management and Power Delivery, 1995, 2: 634-639. [9] 波斯特尼柯夫. 电机设计[M]. 上海电机厂译. 北京: 机械工业出版社, 1956. [10] 陈世坤. 电机设计[M]. 北京: 机械工业出版社, 2008. [11] 吴建华. 开关磁阻电机的设计与应用[M]. 北京: 机械工业出版社, 2000.
2013, Vol. 28 
