Abstract：The inherent shaft voltage mechanism of the stator permanent magnet(Stator-PM) machines represented by the flux-switching permanent magnet(FSPM) machine is analyzed.Both the 2D and 3D finite element analysis models are developed and simulation is carried out for different speeds,shaft structures and materials,rotor eccentricities and armature currents.Finally,the experiment on 10-rotor-pole and 12-stator-slot FSPM machine verified the correctness of analysis and simulation.The results will be helpful to design and reliability analysis of high speed permanent magnet machines.
李伟，程明，朱洒. 磁通切换永磁电机固有轴电压分析[J]. 电工技术学报, 2017, 32(15): 1-9.
Li Wei, Cheng Ming, Zhu Sa. Analysis of Inherent Shaft Voltage in Flux-Switching Permanent Magnet Machine. Transactions of China Electrotechnical Society, 2017, 32(15): 1-9.
[1] Cheng Ming,Sun Le,Buja G,et al.Advanced electrical machines and machine-based systems for electric and hybrid vehicles[J].Energies,2015,8(9):541-9564. [2] Cheng Ming,Zhu Ying.The state of the art of wind energy conversion systems and technologies:a review[J].Energy Conversion and Management,2014,88:332-347. [3] Da Yao,Shi Xiaodong,Krishnamurthy M.Health monitoring,fault diagnosis and failure prognosis techniques for brushless permanent magnet machines[C]//IEEE Vehicle Power and Propulsion Conference,Chicago,2011:1-7. [4] Cheng Ming,Hang Jun,Zhang Jianzhong.Overview of fault diagnosis theory and method for permanent magnet machine[J].Chinese Journal of Electrical Engineering,2015,1(1):21-36. [5] Cheng Ming,Hua Wei,Zhang Jianzhong,et al.Overview of stator-permanent magnet brushless machines[J].IEEE Transactions on Industrial Electronics,2011,58(11):5087-5101. [6] 程明,张淦,花为.定子永磁型无刷电机系统及其关键技术综述.中国电机工程学报,2014,34(29):5204-5220. Cheng Ming,Zhang Gan,Hua Wei.Overview of stator permanent magnet brushless machine systems and their key technologies[J].Proceedings of the CSEE,2014,34(29):5204-5220. [7] 张淦,花为,程明,等.磁通切换型永磁电机非线性磁网络分析[J].电工技术学报,2015,30(2):34-42. Zhang Gan,Hua Wei,Cheng Ming,et al.Analysis of nonlinear magnetic network models for flux-switching permanent magnet machines[J].Transactions of China Electrotechnical Society,2015,30(2):34-42. [8] 刘建强,郑琼林.各种PWM 控制方式下的电机共模电压比较研究[J].北京交通大学学报,2009,29(5):98-102. Liu Jianqiang,Zheng Qionglin.Study and comparison of the common_mode motor voltage in different kinds of PWM control methods[J].Journal of Beijing Jiaotong University,2009,29(5):98-102. [9] 赵文祥,唐建勋,吉敬华,等.五相容错式磁通切换永磁电机及其控制[J].中国电机工程学报,2015,35(5):1229-1236. Zhao Wenxiang,Tang Jianxun,Ji Jinghua,et al.Topology and control of five-phase fault-tolerant flux-switching permanent-magnet motor[J].Proceedings of the CSEE,2015,35(5):1229-1236. [10]於锋,程明,夏子朋,等.3种谐波电流注入模式下的磁通切换永磁电机缺相容错控制[J].中国电机工程学报,2016,36(3):836-844. Yu Feng,Cheng Ming,Xia Zipeng,et al.Fault tolerant control of flux-switching permanent magnet motors with three kinds of harmonic current injections[J].Proceedings of the CSEE,2016,36(3):836-844. [11]Li Feng,Hua Wei,Cheng Ming,et al.Analysis of fault tolerant control for a nine-phase flux-switching permanent magnet machine[J].IEEE Transactions on Magnetics,2014,50(11):8206004. [12]白保东,刘威峰,王禹,等.PWM驱动感应电机轴电压轴承电流[J].电工技术学报,2013,28(增刊2):434-440. Bai Baodong,Liu Weifeng,Wang Yu,et al.Research on shaft voltage and bearing current of induction motor driven by PWM inverter[J].Transactions of China Electrotechnical Society,2013,28(S2):434-440. [13]Busse D,Erdman J,Kerkman R.Characteristics of shaft voltage and bearing currents[J].IEEE Industry Applications Magazine,1997,3(6):21-32. [14]Wang Fei.Motor shaft voltages and bearing currents and their reduction in multilevel medium-voltage PWM voltage-source-inverter drive applications[J].IEEE Transactions on Industry Applications,2000,36(5):1336-1341. [15]Chen Shaotang,Lipo T A.Bearing currents and shaft voltages of an induction motor under hard-and soft-switching inverter excitation[J].IEEE Transactions on Industry Applications,1996,34(5):1042-1048. [16]刘瑞芳,李俊峰,桑秉谦,等.基于电磁场数值计算的变频供电感应电机耦合电容与轴电压的分析[J].电工技术学报,2015,30(14):161-169. Liu Ruifang,Li Junfeng,Sang Bingqian,et al.Modeling of coupled capacitances and bearing voltage in induction motors fed by inverters based on numerical calculation of electromagnetic field[J].Transactions of China Electrotechnical Society,2015,30(14):161-169. [17]Busse D F,Erdman J M,Kerkman R J,et al.The effects of PWM voltage source inverters on the mechanical performance of rolling bearings[J].IEEE Transactions on Industry Applications,1997,33(2):567-576. [18]Wellawatta T,Park J,Kim H M,Hur J.New equivalent circuit of the IPM-type BLDC motor for calculation of shaft voltage by considering electric and magnetic fields[C]//IEEE Energy Conversion Congress and Exposition,Montreal,2015:1872-1877. [19]姜彤,周春阳,徐永金,等.汽轮发电机中静止励磁轴电压的分析与抑制[J].电力系统保护与控制,2012,40(6):142-146. Jiang Tong,Zhou Chunyang,Xu Yongjin,et al.Analysis and suppression of shaft voltage in turbonator with static excitation system[J]. Power System Protection and Control,2012,40(6):142-146. [20]Cha S H,Kim K T,Kim B W,et al.Suppression of shaft voltage for preventing bearing fault of IPM-type high voltage motor in the electric vehicle[C]//IEEE Vehicle Power and Propulsion Conference,Seoul,2012:280-283. [21]刘瑞芳,桑秉谦,曹君慈.变频驱动系统电机接地状况对轴电压影响的研究[J].中国电机工程学报,2015,35(S1):177-183. Liu Ruifang,Sang Bingqian,Cao Junci.Investigation on the influence of motors grounding states on bearing voltage in inverter drive system[J].Proceedings of the CSEE,2015,35(S1):177-183. [22]Pratt J W.Shaft voltages caused by alternating flux encircling the shaft[C]//7th International Conference on Electrical Machines and Drives,Durham,1995,198-202. [23]Shami U T,Akagi H.Identification and discussion of the origin of a shaft end-to-end voltage in an inverter-driven motor[J].IEEE Transactions on Power Electronics,2010,25(6):1615-1625. [24]黄允凯,周 涛.基于等效磁路法的轴向永磁电机效率优化设计[J].电工技术学报,2015,30(2):73-79. Huang Yunkai,Zhou Tao.Efficiency optimization design of axial flux permanent magnet machines using magnetic equivalent circuit[J].Transactions of China Electrotechnical Society,2015,30(2):73-79. [25]Doorsamy W,Cronje W A.An electromagnetic model for shaft voltages in synchronous generators[C]//IEEE International Conference on Industrial Technology,Busan,2014,149-154. [26]张凤阁,杜光辉,王天煜,等.高速电机发展与设计综述[J].电工技术学报,2016,31(7):1-18. Zhang Fengge,Du Guanghui,Wang Tianyu,et al.Review on development and design of high speed machines[J].Transactions of China Electrotechnical Society,2016,31(7):1-18. [27]何良,刘皓,刘扬礼,等.PWM变频驱动电机轴电压与轴电流的测试方法[J].环境技术,2015(2):10-15. He Liang,Liu Hao,Liu Yangli,et al.Measurement methods of bearing voltage and bearing currents in motors fed by PWM inverter[J].Environmental Testing,2015(2):10-15.
2017, Vol. 32 
