1.School of Electrical and Information Engineering Jiangsu University Zhenjiang 212013 China;
2.School of Electric Power Engineering Nanjing Institute of Technology Nanjing 211167 China
A hybrid double stator bearingless switched reluctance motor (HDSBSRM) is proposed in this paper to solve the coupling problem of traditional bearingless switched reluctance motor (BSRM). The suspension output capability is improved and the suspension power loss is reduced. The motor consists of an inner stator and an outer stator, i.e., double stator structure. The outer stator and the inner stator share a rotor. The inner stator provides a bias magnetic field for generating active controllable suspension force by with an axial magnetized permanent magnet ring. By introducing the topological structure and working principle, the mathematical model of the radial suspension force is deduced, and the basic electromagnetic characteristics and decoupling characteristics are analyzed. The self-decoupling characteristics between the torque system and the suspension system is verified. Furthermore, compared with the traditional double stator bearingless switched reluctance motor, the proposed HDSBSRM has the advantages of high suspension output and low suspension power loss.
[1] Takemoto M, Chiba A, Akagi H, et al.Radial force and torque of a bearingless switched reluctance motor operating in a region of magnetic saturation[J]. IEEE Transactions on Industry Applications, 2002, 1(1): 103-112.
[2] Takemoto M, Chiba A, Fukao T.A method of determining the advanced angle of square-wave currents in a bearingless switched reluctance motor[J]. IEEE Transactions on Industry Applications, 2000, 1(6): 1702-1709.
[3] 张维煜, 朱熀秋, 袁野. 磁悬浮轴承应用发展及关键技术综述[J]. 电工技术学报, 2015, 30(12): 12-20.Zhang Weiyuan, Zhu Huangqiu, Yuan Ye. Study on key technologies and applications of magnetic bearings[J]. Transactions of China Electrotechnical Society, 2015, 30(12): 12-20.
[4] 赵旭升, 邓智泉, 王晓琳, 等. 永磁偏置磁轴承的研究现状及其发展[J]. 电工技术学报, 2009, 24(9): 9-20.Zhao Xusheng, Deng Zhiquan, Wang Xiaolin, et al. Research status and development of permanent magnet biased magnetic bearings[J]. Transactions of China Electrotechnical Society, 2009, 24(9): 9-20.
[5] 吴磊涛, 王东, 苏振中, 等. 异极式永磁偏置径向磁轴承的建模与实验[J]. 电工技术学报, 2018, 33(5): 1051-1057.Wu Leitao, Wang Dong, Su Zhenzhong, et al. Modeling and experiment of permanent magnetic biased radial heter-polar magnetic bearing[J]. Transactions of China Electrotechnical Society, 2018, 33(5): 1051-1057.
[6] Yuan Ye, Sun Yukun, Huang Yonghong.Design and analysis of bearingless flywheel motor specially for flywheel energy storage[J]. Electronics Letters, 2015, 52(1): 66-68.
[7] 戴兴建, 姜新建, 王秋楠, 等. 1 MW/60 MJ飞轮储能系统设计与实验研究[J]. 电工技术学报, 2017, 32(21): 89-95.Dai Xingjian, Jiang Xinjian, Wang Qiunan, et al. The design and testing of a 1 MW/60 MJ flywheel energy storage power system[J]. Transactions of China Electrotechnical Society, 2017, 32(21): 89-95.
[8] 陈亮亮, 祝长生, 王忠博. 基于逆系统解耦的电磁轴承飞轮转子系统二自由度控制[J]. 电工技术学报, 2017, 32(23): 100-114.Chen Liangliang, Zhu Changsheng, Wang Zhongbo. Two-degree-of-freedom control for active magnetic bearing flywheel rotor system based on inverse system decoupling[J]. Transactions of China Electrotechnical Society, 2017, 32(23): 100-114.
[9] 项倩雯, 嵇小辅, 孙玉坤, 等. 单绕组磁悬浮开关磁阻电机的原理与解耦控制[J]. 电机与控制学报, 2012, 16(11): 22-28.Xiang Qianwen, Ji Xiaofu, Sun Yukun, et al. Principle and decoupling control of single winding bearingless switched reluctance motors[J]. Electric Machines and Control, 2012, 16(11): 22-28.
[10] 朱志莹, 孙玉坤. 磁悬浮开关磁阻电机直接逆/修正逆全域解耦控制[J]. 中国电机工程学报, 2014, 34(33): 5902-5909.Zhu Zhiying, Sun Yukun. Universal decoupling control for bearingless switched reluctance motors based on the direct-inverse and correct-inverse system[J]. Proceedings of the CSEE, 2014, 34(33): 5902-5909.
[11] Xu Zhenyao, Zhang Fengge, Lee D H, et al.Design and analysis of novel 12/14 hybrid pole type bearingless switched reluctance motor with short flux path[J]. Journal of Electrical Engineering & Technology, 2012, 7(5): 705-713.
[12] Lee D H, Wang Huijun, Ahn J W.Modeling and control of novel bearingless switched reluctance motor[C]//IEEE Energy Conversion Congress and Exposition, San Jose, CA, USA, 2009: 276-281.
[13] Li Chen, Hofmann W.Speed regulation technique of one bearingless 8/6 switched reluctance motor with simpler single winding structure[J]. IEEE Transactions on Industrial Electronics, 2012, 59(6): 2592-2600.
[14] Wei Peng, Dee J, Ahn J W.Design and analysis of doublestator type bearingless switched reluctance motor[J]. Transactions of the Korean Institute of Electrical Engineers, 2011, 60(4): 746-752.
[15] 周云红, 孙玉坤, 嵇小辅, 等. 一种新型的磁悬浮开关磁阻发电机[J]. 中国电机工程学报, 2012, 32(15): 107-113.Zhou Yunhong, Sun Yukun, Ji Xiaofu, et al. A novel bearingless switched reluctance generator[J]. Proceedings of the CSEE, 2012, 32(15): 107-113.
[16] 周云红, 孙玉坤. 一种双定子型磁悬浮开关磁阻起动/发电机的运行原理与实现[J]. 中国电机工程学报, 2014, 34(36): 6458-6466.Zhou Yunhong, Sun Yukun. Principles and implementation of a double-stator bearingless switched reluctance starter/generator[J]. Proceedings of the CSEE, 2014, 34(36): 6458-6466.
[17] Wang Huijun, Liu Jianfeng, Bao Junfang, et al.A novel bearingless switched reluctance motor with a biased permanent magnet[J]. IEEE Transactions on Industrial Electronics, 2014, 61(12): 6947-6955.
[18] Wang Huijun, Bao Junfang, Xue Bingkun, et al.Control of suspending force in novel permanent-magnet-biased bearingless switched reluctance motor[J]. IEEE Transactions on Industrial Electronics, 2015, 62(7): 4298-4306.
[19] Wang Huijun, Bao Junfang, Xue Bingkun, et al.Control of suspending force in novel permanent-magnet-biased bearingless switched reluctance motor[J]. IEEE Transactions on Industrial Electronics, 2015, 62(7): 4298-4306.
[20] Wang Huijun, Lee D H, Park T H, et al.Hybrid stator-pole switched reluctance motor to improve radial force for bearingless application[J]. Energy Conversion & Management, 2011, 52(2): 1371-1376.