volume | PIER Journals

Abstract

To filter out the high harmonic content of the back electromotive force (EMF) in the conventional sliding mode observer (SMO), a novel flux SMO (FSMO) is designed in this paper. The feedback matrix is designed to replace the external filter or other modules, and its higher-order feedback characteristics further enhance the convergence of the FSMO. The Lyapunov function is used to assess the stability of the FSMO. Importantly, a compensated phase-locked loop (CPLL) with an angular compensation strategy is used to extract both position and speed information, resulting in less speed fluctuation and lower position estimation error. Furthermore, the simulation model and experimental platform are developed to evaluate the reliability of the proposed method. Both simulated and experimental results confirm that the proposed hybrid control algorithm performs well in both steady state and dynamic one, high or low speed of the system, with suppressed harmonics of 50.1% and 7.3%, respectively, and an improved response time of 54.1%, providing a concrete program for sensorless control of permanent magnet synchronous motors (PMSMs).

1. Li, Kun, Lin Wang, and Yilin Zhu, "An active flux model-based sensorless flux weakening control algorithm for permanent magnet synchronous motors," Progress In Electromagnetics Research Letters, Vol. 116, 39-45, 2024.

2. Wu, Lijian, Zekai Lyu, Zekai Chen, Jiaming Liu, and Ying Lu, "An enhanced sensorless control scheme for PMSM drives considering self-inductance asymmetry," CES Transactions on Electrical Machines and Systems, Vol. 6, No. 4, 384-392, 2022.

3. Bi, Guangdong, Guoqiang Zhang, Qiwei Wang, Dawei Ding, Binxing Li, Gaolin Wang, and Dianguo Xu, "High-frequency injection angle self-adjustment based online position error suppression method for sensorless PMSM drives," IEEE Transactions on Power Electronics, Vol. 38, No. 2, 1412-1417, 2023.

4. Sun, Xiaodong, Yao Zhang, Xiang Tian, Junhao Cao, and Jianguo Zhu, "Speed sensorless control for IPMSMs using a modified MRAS with gray wolf optimization algorithm," IEEE Transactions on Transportation Electrification, Vol. 8, No. 1, 1326-1337, 2022.

5. Bian, Yifan, Zebin Yang, Xiaodong Sun, and Xiang Wang, "Speed sensorless control of a bearingless induction motor based on modified robust Kalman filter," Journal of Electrical Engineering & Technology, Vol. 19, No. 3, 1179-1190, 2024.

6. Bai, Hongfen and Bo Yu, "Position estimation of fault-tolerant permanent magnet motor in electric power propulsion ship system," IEEJ Transactions on Electric and Electronic Engineering, Vol. 17, No. 6, 890-898, 2022.

7. Sun, Qingguo, Xiaolei Zhu, and Feng Niu, "Sensorless control of permanent magnet synchronous motor based on new sliding mode observer with single resistor current reconstruction," CES Transactions on Electrical Machines and Systems, Vol. 6, No. 4, 378-383, 2022.

8. Ding, Li, Yun Wei Li, and Navid R. Zargari, "Discrete-time SMO sensorless control of current source converter-fed PMSM drives with low switching frequency," IEEE Transactions on Industrial Electronics, Vol. 68, No. 3, 2120-2129, 2021.

9. Xu, Yanping, Chen Wang, Weiwen Yuan, Zhifang Li, and Zhonggang Yin, "Anti-disturbance position sensorless control of PMSM based on improved sliding mode observer with suppressed chattering and no phase delay," Journal of Electrical Engineering & Technology, Vol. 18, No. 4, 2895-2907, 2023.

10. Yin, Zhonggang, Yanping Zhang, Xinping Cao, Dongsheng Yuan, and Jing Liu, "Estimated position error suppression using novel PLL for IPMSM sensorless drives based on full-order SMO," IEEE Transactions on Power Electronics, Vol. 37, No. 4, 4463-4474, 2022.

11. Xu, Wei, Yajie Jiang, Chaoxu Mu, and Frede Blaabjerg, "Improved nonlinear flux observer-based second-order SOIFO for PMSM sensorless control," IEEE Transactions on Power Electronics, Vol. 34, No. 1, 565-579, 2019.

12. Ye, Shuaichen, "Design and performance analysis of an iterative flux sliding-mode observer for the sensorless control of PMSM drives," ISA Transactions, Vol. 94, 255-264, 2019.

13. Ye, Shuaichen and Xiaoxian Yao, "A modified flux sliding-mode observer for the sensorless control of PMSMs with online stator resistance and inductance estimation," IEEE Transactions on Power Electronics, Vol. 35, No. 8, 8652-8662, 2020.

14. Wang, Guoqiang and Huilin Zhang, "A new speed adaptive estimation method based on an improved flux sliding-mode observer for the sensorless control of PMSM drives," ISA Transactions, Vol. 128, 675-685, 2022.

15. Ge, Yang, Weizhang Song, Yang Yang, and Patrick Wheeler, "A polar-coordinate-multisignal-flux-observer-based PMSM non-PLL sensorless control," IEEE Transactions on Power Electronics, Vol. 38, No. 9, 10579-10583, 2023.

16. Yan, Hao, Wenjie Wang, Yongxiang Xu, and Jibin Zou, "Position sensorless control for PMSM drives with single current sensor," IEEE Transactions on Industrial Electronics, Vol. 70, No. 1, 178-188, 2023.

17. Song, Xinda, Jiancheng Fang, Bangcheng Han, and Shiqiang Zheng, "Adaptive compensation method for high-speed surface PMSM sensorless drives of EMF-based position estimation error," IEEE Transactions on Power Electronics, Vol. 31, No. 2, 1438-1449, 2016.

18. Zhao, W., S. Song, and S. Zhou, "Current source inverter driven PMSM position sensorless control with improved sliding mode observer," Journal of Electrical Technology, Vol. 39, No. 4, 987-995, 2024.

19. Novak, Zdenek and Martin Novak, "Adaptive PLL-based sensorless control for improved dynamics of high-speed PMSM," IEEE Transactions on Power Electronics, Vol. 37, No. 9, 10154-10165, 2022.

20. Liu, Gang, Haifeng Zhang, and Xinda Song, "Position-estimation deviation-suppression technology of PMSM combining phase self-compensation SMO and feed-forward PLL," IEEE Journal of Emerging and Selected Topics in Power Electronics, Vol. 9, No. 1, 335-344, 2021.

21. Liu, Zhao-Hua, Jie Nie, Hua-Liang Wei, Lei Chen, Fa-Ming Wu, and Ming-Yang Lv, "Second-order ESO-based current sensor fault-tolerant strategy for sensorless control of PMSM with B-phase current," IEEE/ASME Transactions on Mechatronics, Vol. 27, No. 6, 5427-5438, 2022.

22. Ye, Shuaichen, "A novel fuzzy flux sliding-mode observer for the sensorless speed and position tracking of PMSMs," Optik, Vol. 171, 319-325, 2018.

Professor Han Lin

Ms. Shanshan Wang

Dr. Zhonggen Wang

Dr. Xiaobing Zhu

Dr. Wenyan Nie