五相圆筒永磁直线电机两相故障容错矢量控制
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摘要
为确保五相圆筒永磁直线电机(tubular permanent magnet linear motor,TPMLM)在任意两相开路或短路故障情况下仍然具有平滑的推力和优良的动态性能,该文提出一种容错矢量控制策略。根据优化所得的非故障相容错电流推导降阶正交变换矩阵,实现故障状态下的矢量空间解耦;采用相短路电流与其反电势的关系求取抑制短路电流影响的电压。在同步旋转坐标系上,建立TPMLM任意两相故障情况下的数学解耦模型。最后,为简化控制器设计,在传统矢量控制基础上构建容错矢量控制器。实验结果表明,该策略能提高TPMLM在任意两相故障情况下的稳态和动态性能。
To obtain smooth thrust force and high dynamic performance in double-phase open-circuit or short-circuit faults operation, a novel fault-tolerant vector control(FT-VC) for five phase tubular permanent-magnet linear motor(TPMLM) was proposed. According to the optimal fault-tolerant currents in the remaining healthy phases, two new reduced-order orthogonal transformation matrices were derived, and then the vector space was decoupled in the double-phase fault conditions. The voltages, which were used to restrain the impact of short-circuit current, were derived based on the relation between short-circuits and their phase back electromotive forces. Then the decoupled model of the TPMLM with arbitrary double-phase faults was built. Finally, a new fault-tolerant vector controller was designed on the basis of traditional vector controller. Therefore, the steady-state and dynamic performance of the TPMLM with double-phase faults is improved and the controller design is simplified. The experimental results demonstrate that the proposed strategy can improve the steady-state and dynamic performance of TPMLM with arbitrary double-phase faults.
To obtain smooth thrust force and high dynamic performance in double-phase open-circuit or short-circuit faults operation, a novel fault-tolerant vector control(FT-VC) for five phase tubular permanent-magnet linear motor(TPMLM) was proposed. According to the optimal fault-tolerant currents in the remaining healthy phases, two new reduced-order orthogonal transformation matrices were derived, and then the vector space was decoupled in the double-phase fault conditions. The voltages, which were used to restrain the impact of short-circuit current, were derived based on the relation between short-circuits and their phase back electromotive forces. Then the decoupled model of the TPMLM with arbitrary double-phase faults was built. Finally, a new fault-tolerant vector controller was designed on the basis of traditional vector controller. Therefore, the steady-state and dynamic performance of the TPMLM with double-phase faults is improved and the controller design is simplified. The experimental results demonstrate that the proposed strategy can improve the steady-state and dynamic performance of TPMLM with arbitrary double-phase faults.
引文
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[14]Wang Zheng,Wang Yibo,Chen Jian,et al.Decoupled vector space decomposition based space vector modulation for dual three-phase three-level motor drives[J].IEEE Transactions on Power Electronics,2018,33(12):10683-10697,doi:10.1109/TPEL.2018.2811391.
[15]周长攀,杨贵杰,苏健勇,等.基于正常解耦变换的双三相永磁同步电机缺相容错控制策略[J].电工技术学报,2017,32(3):86-96.Zhou Changpan,Yang Guijie,Su Jianyong,et al.The control strategy for dual three-phase PMSM based on normal decoupling transformation under fault condition due to open phases[J].Transactions of China Electrotechnical Society,2017,32(3):86-96(in Chinese).
[16]Che H S,Duran M J,Levi E,et al.Postfault operation of an asymmetrical six-phase induction machine with single and two isolated neutral points[J].IEEETransactions on Power Electronics,2014,29(10):5406-5416.
[17]Liu Guohai,Lin Zhipeng,Zhao Wenxiang,et al.Third harmonic current injection in fault-tolerant five-phase permanent-magnet motor drive[J].IEEE Transactions on Power Electronics,2018,33(8):6970-6979.
[18]Zhou Huawei,Zhao Wenxiang,Liu Guohai,et al.Remedial field-oriented control of five-phase fault-tolerant permanent-magnet motor by using reduced-order transformation matrices[J].IEEETransactions on Industrial Electronics,2017,64(1):169-178.
[19]Zhou Huawei,Liu Guohai,Zhao Wenxiang,et al.Dynamic performance improvement of five-phase permanent-magnet motor with short-circuit fault[J].IEEETransactions on Industrial Electronics,2018,65(1):145-155.
[20]周华伟,于晓东,高猛虎,等.基于不匹配干扰观测器的圆筒型永磁直线电机新型滑模速度控制[J].中国电机工程学报,2018,38(7):2163-2170.Zhou Huawei,Yu Xiaodong,Gao Menghu,et al.Novel sliding mode speed control for tubular permanent magnet linear motors based on mismatched disturbance observers[J].Proceedings of the CSEE,2018,38(7):2163-2170(in Chinese).
[2]Liu Zhengmeng,Ji Jinghua,Wang Fangqun,et al.Analysis and control of double-stator tubular permanent-magnet motor with series magnetic circuit[J].IEEE Transactions on Applied Superconductivity,2016,26(4):5201805.
[3]陈梁远,李黎川.压缩机用直线电机及其关键技术发展综述[J].中国电机工程学报,2013,33(15):52-68.Chen Liangyuan,Li Lichuan.Development of the linear motor and its key technologies for compressors[J].Proceedings of the CSEE,2013,33(15):52-68(in Chinese).
[4]Wu Fan,Tong Chengde,Sui Yi,et al.Influence of third harmonic back EMF on modeling and remediation of winding short circuit in a multiphase PM machine with FSCWs[J].IEEE Transactions on Industrial Electronics,2016,63(10):6031-6041.
[5]郑晓钦,马伟明,王东,等.十五相感应电机不对称缺相容错运行控制[J].中国电机工程学报,2018,38(4):1212-1221.Zheng Xiaoqin,Ma Weiming,Wang Dong,et al.Fault-tolerant control of fifteen-phase induction machine under asymmetrical fault condition[J].Proceedings of the CSEE,2018,38(4):1212-1221(in Chinese).
[6]Duran M J,Barrero F.Recent advances in the design,modeling,and control of multiphase machines:Part II[J].IEEE Transactions on Industrial Electronics,2016,63(1):459-468.
[7]Cheng Luming,Sui Yi,Zheng Ping,et al.Implementation of postfault decoupling vector control and mitigation of current ripple for five-phase fault-tolerant PM machine under single-phase open-circuit fault[J].IEEETransactions on Power Electronics,2018,33(10):8623-8636.
[8]Tian Bing,An Quntao,Duan Jiandong,et al.Decoupled modeling and nonlinear speed control for five-phase PMmotor under single-phase open fault[J].IEEE Transactions on Power Electronics,2017,32(7):5473-5486.
[9]Guzman H,Duran M J,Barrero F,et al.Comparative study of predictive and resonant controllers in fault-tolerant five-phase induction motor drives[J].IEEETransactions on Industrial Electronics,2016,63(1):606-617.
[10]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(in Chinese).
[11]Bermudez M,Gonzalez-Prieto I,Barrero F,et al.An experimental assessment of open-phase fault-tolerant virtual-vector-based direct torque control in five-phase induction motor drives[J].IEEE Transactions on Power Electronics,2018,33(3):2774-2784.
[12]周扬忠,程明,陈小剑.基于虚拟变量的六相永磁同步电机缺一相容错型直接转矩控制[J].中国电机工程学报,2015,35(19):5050-5058.Zhou Yangzhong,Cheng Ming,Chen Xiaojian.Atolerated fault direct torque control for six-phase permanent magnet synchronous motor with one opened phase based on fictitious variables[J].Proceedings of the CSEE,2015,35(19):5050-5058(in Chinese).
[13]林晓刚,周扬忠,程明.基于虚拟变量的六相永磁同步电机缺任意两相容错型直接转矩控制[J].中国电机工程学报,2016,36(1):231-239.Lin Xiaogang,Zhou Yangzhong,Cheng Ming.A novel direct torque control for six-phase permanent magnet synchronous motor with two opened phases based on defining fictitious variables[J].Proceedings of the CSEE,2016,36(1):231-239(in Chinese).
[14]Wang Zheng,Wang Yibo,Chen Jian,et al.Decoupled vector space decomposition based space vector modulation for dual three-phase three-level motor drives[J].IEEE Transactions on Power Electronics,2018,33(12):10683-10697,doi:10.1109/TPEL.2018.2811391.
[15]周长攀,杨贵杰,苏健勇,等.基于正常解耦变换的双三相永磁同步电机缺相容错控制策略[J].电工技术学报,2017,32(3):86-96.Zhou Changpan,Yang Guijie,Su Jianyong,et al.The control strategy for dual three-phase PMSM based on normal decoupling transformation under fault condition due to open phases[J].Transactions of China Electrotechnical Society,2017,32(3):86-96(in Chinese).
[16]Che H S,Duran M J,Levi E,et al.Postfault operation of an asymmetrical six-phase induction machine with single and two isolated neutral points[J].IEEETransactions on Power Electronics,2014,29(10):5406-5416.
[17]Liu Guohai,Lin Zhipeng,Zhao Wenxiang,et al.Third harmonic current injection in fault-tolerant five-phase permanent-magnet motor drive[J].IEEE Transactions on Power Electronics,2018,33(8):6970-6979.
[18]Zhou Huawei,Zhao Wenxiang,Liu Guohai,et al.Remedial field-oriented control of five-phase fault-tolerant permanent-magnet motor by using reduced-order transformation matrices[J].IEEETransactions on Industrial Electronics,2017,64(1):169-178.
[19]Zhou Huawei,Liu Guohai,Zhao Wenxiang,et al.Dynamic performance improvement of five-phase permanent-magnet motor with short-circuit fault[J].IEEETransactions on Industrial Electronics,2018,65(1):145-155.
[20]周华伟,于晓东,高猛虎,等.基于不匹配干扰观测器的圆筒型永磁直线电机新型滑模速度控制[J].中国电机工程学报,2018,38(7):2163-2170.Zhou Huawei,Yu Xiaodong,Gao Menghu,et al.Novel sliding mode speed control for tubular permanent magnet linear motors based on mismatched disturbance observers[J].Proceedings of the CSEE,2018,38(7):2163-2170(in Chinese).