Abstract：The traditional inductance identification method of permanent magnet synchronous motor (PMSM) is affected by the nonlinearity of the inverter. For this reason, a high-frequency injection inductance parameter identification method considering the nonlinearity of the inverter is proposed, which injects high-frequency rotating square wave voltage in two-phase stationary coordinate system. In addition, a signal construction method that can suppress the nonlinearity of the inverter is proposed. This signal construction method is used to construct the high-frequency response current difference in the two-phase stationary coordinate system to obtain the d-q axis inductance parameter identification signals of the permanent magnet synchronous motor. According to the error analysis, the selection method of high-frequency injection signal is given. The experimental results on a 1.5kW internal permanent magnet synchronous motor (IPMSM) show that the proposed method can realize the inductance parameter identification considering the saturation effect, and has the advantages of fast convergence speed, effective suppression of inverter nonlinearity, and easy engineering implement.
[1] 鲍晓华, 刘佶炜, 孙跃, 等. 低速大转矩永磁直驱电机研究综述与展望[J]. 电工技术学报, 2019, 34(6): 1148-1160. Bao Xiaohua, Liu Jiwei, Sun Yue, et al.Review and prospect of low-speed high-torque permanent magnet machines[J]. Transactions of China Electrotechnical Society, 2019, 34(6): 1148-1160. [2] 姜燕, 刘思美, 罗德荣, 等. 基于高频正交方波电压注入的永磁同步电机初始位置辨识[J]. 电工技术学报, 2019, 34(19): 4006-4016. Jiang Yan, Liu Simei, Luo Derong, et al.Rotor initial position identification based on the HF orthogonal square-wave voltage injection[J]. Transactions of China Electrotechnical Society, 2019, 34(19): 4006-4016. [3] 章金晶, 汤宁平. 永磁同步电动机电感参数测量的研究综述[J]. 电气技术, 2018, 19(2): 1-5. Zhang Jinjing, Tang Ningping.The review of indu- ctance parameters of measurement permanent magnet synchronous motor[J]. Electrical Engineering, 2018, 19(2): 1-5. [4] Yamamoto S, Hirahara H, Tanaka A, et al.Universal sensorless vector control of induction and permanent- magnet synchronous motors considering equivalent iron loss resistance[J]. IEEE Transactions on Industry Applications, 2015, 51(2): 1259-1267. [5] 刘金海, 陈为, 胡金高. 永磁同步电机dq电感参数新实验获取法[J]. 电工技术学报, 2014, 29(7): 97-103. Liu Jinhai, Chen Wei, Hu Jingao.Novel experimental methods of acquiring dq inductance of permanent magnet synchronous motors[J]. Transactions of China Electrotechnical Society, 2014, 29(7): 97-103. [6] 康劲松, 王硕. 基于Newton-Raphson搜索算法的永磁同步电机变电感参数最大转矩电流比控制方法[J]. 电工技术学报, 2019, 34(8): 1616-1625. Kang Jinsong, Wang Shuo.Newton-Raphson-based searching method for variable-parameters inductance maximum torque per ampere control used for IPMSM[J]. Transactions of China Electrotechnical Society, 2019, 34(8): 1616-1625. [7] 林国汉, 章兢, 刘朝华, 等. 改进综合学习粒子群算法的PMSM参数辨识[J]. 电机与控制学报, 2015, 19(1): 51-57. Lin Guohan, Zhang Jing, Liu Chaohua, et al.Parameter identification of PMSM using improved comprehensive learning particle swarm optimiza- tion[J]. Electric Machines and Control, 2015, 19(1): 51-57. [8] Rafaq M S, Mwasilu F, Kim J, et al.Online parameter identification for model-based sensorless control of interior permanent magnet synchronous machine[J]. IEEE Transactions on Power Electronics, 2017, 32(6): 4631-4643. [9] 吕广强, 闫耀程. 永磁同步电机转子静止式参数辨识[J]. 电气工程学报, 2017, 12(5): 41-49. Lü Guangqiang, Yan Yaocheng.Inductance para- meters identification of permanent magnet synchronous machine at standstill[J]. Journal of Electrical Engineering, 2017, 12(5): 41-49. [10] 李峰, 夏超英. 考虑磁路饱和的置式永磁同步电机电感参数旋转辨识算法[J]. 电工技术学报, 2016, 31(21): 203-211. Li Feng, Xia Chaoying.Inductance parameters identi- fication algorithms of IPMSM under rotating state taking magnetic circuit saturation into account[J]. Transactions of China Electrotechnical Society, 2016, 31(21): 203-211. [11] 武四辈, 吴志红, 朱元. 车用内置式永磁同步电机电感参数辨识方法[J]. 农业机械学报, 2013, 44(8): 27-32. Wu Sibei, Wu Zhihong, Zhu Yuan.Identification for inductance parameters of IPMSM in vehicle[J]. Transactions of the Chinese Society for Agricultural Machinery, 2013, 44(8): 27-32. [12] 李峰, 车进, 刘大铭, 等. IPMSM动态电感辨识方法及转子位置估计误差补偿策略[J]. 电工技术学报, 2018, 33(23): 5418-5426. Li Feng, Che Jin, Liu Daming, et al.Dynamic inductance identification method and rotor position estimation error compensation strategy for IPMSM[J]. Transactions of China Electrotechnical Society, 2018, 33(23): 5418-5426. [13] 杨淑英, 刘威, 李浩源, 等. 基于旋转注入的同步磁阻电机电感辨识方案[J]. 电工技术学报, 2019, 34(增刊1): 97-104. Yang Shuying, Liu Wei, Li Haoyuan, et al.Inductance identification scheme of synchronous reluctance motor based on rotary injection[J]. Transactions of China Electrotechnical Society, 2019, 34(S1): 97-104. [14] 王爽, 曹栋逸, 杨影, 等. 正负高频脉冲电压注入的永磁同步电机无位置传感器控制[J]. 电工技术学报, 2020, 35(增刊1): 164-171. Wang Shuang, Cao Dongyi, Yang Ying, et al.Sensor- less control of PMSM with positive and negative high frequency pulse voltage signal injection[J]. Transactions of China Electrotechnical Society, 2020, 35(S1): 164-171. [15] Xu Dianguo, Wang Bo, Zhang Guoqiang, et al.A review of sensorless control methods for AC motor drives[J]. CES Transactions on Electrical Machines and Systems, 2018, 2(1): 104-115. [16] Wang Gaolin, Wang Ying, Ding Li, et al.Harmonic analysis of the effects of inverter nonlinearity on the offline inductance identification of PMSMs using high frequency signal injection[J]. Journal of Power Electronics, 2015, 15(6): 1567-1576. [17] Du Xinming, Zhang Wei.High precision off-line parameters identification of PMSM considering dead-time effect[C]//International Symposium on Industrial Electronics, Vancouver, BC, Canada, 2019: 336-341. [18] Wang Gaolin, Wang Ying, Qi Jiangbo, et al.Offline inductance identification of PMSM with adaptive inverter nonlinearity compensation[C]//International Conference on Power Electronics and ECCE Asia, Seoul, 2015: 2438-2444. [19] 邓国发, 王辉, 吴轩, 等. 一种可抑制逆变器非线性影响的永磁同步电机无位置传感器控制策略[J]. 中国电机工程学报, 2018, 38(24): 7381-7390, 7464. Deng Guofa, Wang Hui, Wu Xuan, et al.A sensorless control strategy of permanent magnet synchronous motor for suppressing nonlinear effects of inverter[J]. Proceedings of the CSEE, 2018, 38(24): 7381-7390, 7464. [20] Sun Wei, Gao Jie, Liu Xiaofeng, et al.Inverter nonlinear error compensation using feedback gains and self-tuning estimated current error in adaptive full-order observer[J]. IEEE Transactions on Industry Applications, 2016, 52(1): 472-482.
2021, Vol. 36 
