A Detecting Algorithm for Initial Position of Interior Permanent Magnet Synchronous Motor Based on Rotating High Frequency Injection
Li Haoyuan1, Zhang Xing1, Yang Shuying1, Yang Jian1, Li Jun2
1. School of Electrical Engineering and Automation Hefei University of Technology Hefei 230009 China; 2. Sungrow Power Supply Co. Ltd Hefei 230088 China
Abstract:Signal filtering and digital control delay will increase the detection error during the process of IPMSM initial position detection by means of rotating high frequency injection method. Thus, a position signal demodulation algorithm is proposed based on self-adjusting frame amplitude convergence (SFAC). First of all, the current is transformed into two-phase self-adjusting shaft frame, and the transform angle is pole position estimation plus π/4, thereby there is no need to compensate the phase deviation caused by digital control delay. Secondly, a recursive DFT scheme is used to calculate the current amplitude of self-adjusting frame, while the deference of amplitude is put into the phase-locked loop (PLL), the output of PLL is the pole position estimation angle. The polarity is judged by means of voltage pulse injection method. There is no signal filtering during the demodulation process, which avoids the phase shifting problem caused by filters. Finally, the proposed SFAC algorithm and the conventional synchronous frame high pass filter (SFHF) algorithm are compared and analyzed. The SFAC algorithm is verified by experiments.
李浩源, 张兴, 杨淑英, 杨健, 李俊. 基于旋转高频注入的内置式永磁同步电机初始位置检测算法[J]. 电工技术学报, 2018, 33(8): 1723-1731.
Li Haoyuan, Zhang Xing, Yang Shuying, Yang Jian, Li Jun. A Detecting Algorithm for Initial Position of Interior Permanent Magnet Synchronous Motor Based on Rotating High Frequency Injection. Transactions of China Electrotechnical Society, 2018, 33(8): 1723-1731.
[1] Li H, Zhang X, Do H T, et al.Multi-objective visual analysis of PI current regulator for high performance PMSM drives[C]//IEEE International Power Electronics and Motion Control Conference, Hefei, China, 2016: 1368-1372. [2] 刘忠义, 刘崇茹, 李庚银. 机械轴系模型对直驱永磁同步风力发电机暂态分析的影响[J]. 电工技术学报, 2016, 31(2): 145-152. Liu Zhongyi, Liu Chongru, Li Gengyin.Influence of shafting models in the transient analysis of wind turbines with permanent magnet synchronous generators[J]. Transactions of China Electrotechnical Society, 2016, 31(2): 145-152. [3] 李旭春, 张鹏, 严乐阳, 等. 具有参数辨识的永磁同步电机无位置传感器控制[J]. 电工技术学报, 2016, 31(14): 139-147. Li Xuchun, Zhang Peng, Yan Leyang, et al.Sensorless control of permanent magnet synchronous motor with online parameter identification[J]. Transactions of China Electrotechnical Society, 2016, 31(14): 139-147. [4] 孟高军, 余海涛, 黄磊, 等. 一种基于线电感变化特征的永磁同步电机转子初始位置检测新方法[J]. 电工技术学报, 2015, 30(20): 1-9. Meng Gaojun, Yu Haitao, Huang Lei, et al.A novel initial rotor position estimation method for PMSM based on variation behavior of line inductances[J]. Transactions of China Electrotechnical Society, 2015, 30(20): 1-9. [5] 朱熀秋, 成秋良. 无起动绕组永磁同步电机初始定位及起动策略[J]. 中国电机工程学报, 2008, 28(9): 61-65. Zhu Huangqiu, Cheng Qiuliang.Initial orientation and starting strategy on PMSM without starting windings[J]. Proceedings of the CSEE, 2008, 28(9): 61-65. [6] 滕福林, 胡育文, 黄文新, 等. 永磁同步伺服系统初始位置修正算法[J]. 中国电机工程学报, 2008, 28(27): 109-113. Teng Fulin, Hu Yuwen, Huang Wenxin, et al.Amending algorithm to measure motor's initial position in PMSM servo systems[J]. Proceedings of the CSEE, 2008, 28(27): 109-113. [7] 郑泽东, 李永东, Maurice, 等. 基于扩展Kalman滤波器的PMSM高性能控制系统[J]. 电工技术学报, 2007, 22(10): 18-23. Zheng Zedong, Li Yongdong, Maurice, et al. High performance PMSM control system based on extended Kalman filter[J]. Transactions of China Electrotechnical Society, 2007, 22(10): 18-23. [8] 李毅拓, 陆海峰, 瞿文龙, 等. 一种新颖的永磁同步电机转子初始位置检测方法[J]. 中国电机工程学报, 2013, 33(3): 75-82. Li Yituo, Lu Haifeng, Qu Wenlong, et al.A novel initial rotor position estimation method for permanent magnet synchronous motors[J]. Proceedings of the CSEE, 2013, 33(3): 75-82. [9] 邵杰, 邓智泉, 胡荣光, 等. 基于改进脉冲注入开关磁阻电机无位置传感器技术[J]. 电工技术学报, 2015, 30(21): 147-153. Shao Jie, Deng Zhiquan, Hu Rongguang, et al.An improved sensorless driving method of switched reluctance motors using impressed voltage pulse[J]. Transactions of China Electrotechnical Society, 2015, 30(21): 147-153. [10] 黄科元, 周李泽, 周滔滔, 等. 一种增强可靠性的永磁同步电机初始角检测[J]. 电工技术学报, 2015, 30(1): 45-51. Huang Keyuan, Zhou Lize, Zhou Taotao, et al.An enhanced reliability method for initial angle detection on surface mounted permanent magnet synchronous motors[J]. Transactions of China Electrotechnical Society, 2015, 30(1): 45-51. [11] Nicola B, Silverio B, Sul S K, et al.Advantages of inset PM machines for zero-speed sensorless position detection[J]. IEEE Transactions on Industry Appli- cations, 2008, 44(4): 1190-1198. [12] 吕晓源, 刘刚, 毛琨, 等. 基于虚拟脉振高频注入法的永磁电机初始位置检测[J]. 电工技术学报, 2017, 32(23): 34-41. Lü Xiaoyuan, Liu Gang, Mao Kun, et al.Initial position detection of permanent magnet motor based on virtual pulsating high-frequency injection method[J]. Transactions of China Electrotechnical Society, 2017, 32(23): 34-41. [13] Luo X, Tang Q, Shen A, et al.PMSM sensorless control by injecting HF pulsating carrier signal into estimated fixed-frequency rotating reference frame[J]. IEEE Transactions on Industrial Electronics, 2016, 63(4): 2294-2303. [14] Liu J M, Zhu Z Q.Novel sensorless control strategy with injection of high-frequency pulsating carrier signal into stationary reference frame[J]. IEEE Transactions on Industry Applications, 2014, 50(4): 2574-2583. [15] 张国强, 王高林, 徐殿国. 基于无滤波器方波信号注入的永磁同步电机初始位置检测方法[J]. 电工技术学报, 2017, 32(13): 162-168. Zhang Guoqiang, Wang Gaolin, Xu Dianguo.Filterless square-wave injection based initial position detection forpermanent magnet synchronous machines[J]. Transactions of China Electrotechnical Society, 2017, 32(13): 162-168. [16] Kim D, Kwon Y C, Sul S K, et al.Suppression of injection voltage disturbance for high-frequency square-wave injection sensorless drive with regu- lation of induced high-frequency current ripple[J]. IEEE Transactions on Industry Applications, 2016, 52(1): 302-312. [17] Raca D, Garcia P, Reigosa D D, et al.Carrier-signal selection for sensorless control of PM synchronous machines at zero and very low speeds[J]. IEEE Transactions on Industry Applications, 2010, 46(1): 167-178. [18] 鲁家栋, 刘景林, 卫丽超. 永磁同步电机转子初始位置检测方法[J]. 电工技术学报, 2015, 30(7): 105-111. Lu Jiadong, Liu Jinglin, Wei Lichao.Estimation of the initial rotor position for permanent magnet synchronous motors[J]. Transactions of China Electrotechnical Society, 2015, 30(7): 105-111. [19] 田兵, 安群涛, 孙东阳, 等. 基于磁饱和效应的表贴式永磁同步电机初始位置检测方法[J]. 电工技术学报, 2016, 31(1): 155-164. Tian Bing, An Quntao, Sun Dongyang, et al.Initial position estimation for surface permanent magnet synchronous motors based on magnetic saturation effect[J]. Transactions of China Electrotechnical Society, 2016, 31(1): 155-164. [20] 秦峰, 贺益康, 贾洪平. 基于转子位置自检测复合方法的永磁同步电机无传感器运行研究[J]. 中国电机工程学报, 2007, 27(3): 12-17. Qin Feng, He Yikang, Jia Hongping.Investigation of the sensorless control for PMSM based on a hybrid rotor position self-sensing approach[J]. Proceedings of the CSEE, 2007, 27(3): 12-17. [21] 王高林, 杨荣峰, 于泳, 等. 内置式永磁同步电机转子初始位置估计方法[J]. 电机与控制学报, 2010, 14(6): 56-60. Wang Gaolin, Yang Rongfeng, Yu Yong, et al.Initial rotor position estimation for interior permanent magnet synchronous motor[J]. Electric Machines & Control, 2010, 14(6): 56-60. [22] Holmes D G, Lipo T A, Mcgrath B P, et al.Optimized design of stationary frame three phase AC current regulators[J]. IEEE Transactions on Power Electronics, 2009, 24(11): 2417-2426.