Abstract：To improve the reliability of three-phase permanent magnet synchronous motor (PMSM) control system and reduce the ripple of output torque in case of the stator windings occur open-circuit, a fault-tolerant control strategy for three-phase PMSM was proposed. Based on the relationship of current and voltage of non-fault phase, a mathematical model of the three-phase PMSM with one phase open-circuit was established. According to the analysis of the output torque under healthy and fault state, a fault-tolerant control strategy with output torque invariant was proposed. By redistributing the magnitude and phase of the non-fault phase current, the feed forward zero axis voltage was calculated to ensure the normal operation of the drive system. In order to improve the stability of output torque under phase open-fault, A combination control strategy of the feed forward zero axis voltage and closed loop correction of central current was proposed, which realized no-disturbed operation. By adopting rotor field oriented method, adding the feed forward zero axis voltage and closed loop correction of central current controller to dq current controller, the output torque was compensated. The experimental results show that the method is correct and effective to improve the reliability of the drive system.
方敏, 周新秀, 刘刚. 三相永磁同步电机断相容错控制[J]. 电工技术学报, 2018, 33(13): 2972-2981.
Fang Min, Zhou Xinxiu, Liu Gang. Fault-Tolerant Control Strategy for Three-Phase Permanent Magnet Synchronous Motor in Case of One Phase Open-Circuit. Transactions of China Electrotechnical Society, 2018, 33(13): 2972-2981.
[1] Kontarček A, Bajec P, Nemec M, et al.Cost-effective three-phase PMSM drive tolerant to open-phase fault[J]. IEEE Transactions on Industrial Electronics, 2015, 62(11): 6708-6718. [2] Bolognani S, Zordan M, Zigliotto M.Experimental fault-tolerant control of PMSM drive[J]. IEEE Transactions on Industrial Electronics, 2000, 47(5): 1134-1141. [3] Bianchi N, Bolognani S.Innovative remedial strategies for inverter faults in IPM synchronous motor drives[J]. IEEE Transactions on Energy Conversion, 2003, 18(2): 306-314. [4] Gaeta A, Scelba G, Consoli A.Sensorless vector control of PM synchronous motors during single-phase open-circuit faulted conditions[J]. IEEE Transactions on Industry Applications, 2012, 48(6): 1968-1979. [5] Gaeta A, Scelba G, Consoli A.Modeling and control of three-phase PMSMs under open-phase fault[J]. IEEE Transactions on Industry Applications, 2013, 49(1): 74-83. [6] 刘自程, 郑泽东, 彭凌, 等. 船舶电力推进中十五相感应电机同轴运行及容错控制策略[J]. 电工技术学报, 2014, 29(3): 65-74. Liu Zicheng, Zheng Zedong, Peng Ling, et al.Fixed joint double fifteen-phase induction motor control and fault-tolerant control in ship propulsion system[J]. Transactions of China Electrotechnical Society, 2014, 29(3): 65-74. [7] 王永兴, 温旭辉, 赵峰. 六相永磁同步电机缺相容错控制[J]. 电工技术学报, 2015, 30(5): 49-58. Wang Yongxing, Wen Xuhui, Zhao Feng.The fault-tolerant control for six-phase permanent magnet synchronous machines with one phase failure[J]. Transactions of China Electrotechnical Society, 2015, 30(5): 49-58. [8] 高宏伟, 杨贵杰. 五相永磁同步电机缺相运行的建模与控制[J]. 电工技术学报, 2016, 31(20): 93-101. Gao Hongwei, Yang Guijie.Modeling and control of five-phase permanent magnet synchronous motor with one phase open-circuit fault[J]. Transactions of China Electrotechnical Society, 2016, 31(20): 93-101. [9] 杨金波, 李铁才, 杨贵杰. 一相开路双三相永磁同步电机建模与控制[J]. 电工技术学报, 2011, 26(10): 167-173. Yang Jinbo, Li Tiecai, Yang Guijie.Modeling and control of dual three-phase pmsm with one open phase[J]. Transactions of China Electrotechnical Society, 2011, 26(10): 167-173. [10] Wallmark O, Harnefors L, Carlson O.Control algorithms for a fault-tolerant PMSM drive[J]. IEEE Transactions on Industrial Electronics, 2007, 54(4): 1973-1980. [11] Meinguet F, Kestelynx X, Semailx E, et al.Fault detection, isolation and control reconfiguration of three-phase PMSM drives[C]//2011 IEEE International Symposium on Industrial Electronics, Gdansk, Poland, 2011: 2091-2096. [12] Hoang K D, Zhu Z Q, Foster M.Direct torque control of permanent magnet brushless AC drive with single-phase open-circuit fault accounting for influence of inverter voltage drop[J]. Electric Power Applications, 2013, 7(5): 369-380. [13] Hoang K D, Zhu Z Q, Foster M P, et al.Comparative study of current vector control performance of alternate fault tolerant inverter topologies for three-phase PM brushless ac machine with one phase open-circuit fault[C]//5th IET International Conference on Power Electronics, Machines and Drives, Brighton, 2010: 1-6. [14] Meinguet F, Gyselinck J.Control strategies and reconfiguration of four-leg inverter PMSM drives in case of single-phase open-circuit faults[C]//IEEE International Electric Machines and Drives Conference, Miami, FL, USA, 2009: 299-304. [15] Beltrao de R C M, Jacobina C B, Cabral da S E R, et al. An induction motor drive system with improved fault tolerance[J]. IEEE Transactions on Industry Applications, 2000, 37(3): 873-879. [16] Saleh K, Sumner M.Modeling and simulation of sensorless control of four-leg inverter PMSM drives in the case of a single-phase open circuit fault[J]. Turkish Journal of Electrical Engineering & Computer Sciences, 2016, 24(5): 3807-3820. [17] Meinguet F, Kestelyn X, Semail E, et al.Fault detection, isolation and control reconfiguration of three-phase PMSM drives[J]. Journal of Applied Polymer Science, 2011, 69(9): 1789-1791. [18] Kim J H, Sul S K.A carrier-based PWM method for three-phase four-leg voltage source converters[J]. IEEE Transactions on Power Electronics, 2004, 19(1): 66-75.
2018, Vol. 33 
