volume | PIER Journals

Abstract

In order to improve the stability of sensorless high-speed operation of permanent magnet synchronous motors and effectively expand the speed range, a voltage closed-loop flux weakening sensorless algorithm based on the active flux model is proposed. Firstly, the mathematical model of sensorless control of the PMSM is designed based on the active flux model, and the state of the PMSM flux weakening operation is analyzed. Then, based on the voltage closed-loop flux weakening control method, the corresponding flux weakening control algorithm is analyzed and designed. Meanwhile, based on the active flux model, the speed and rotor position of the motor are observed by sliding mode observer and phase-locked loop method. After that, the flux weakening control method and the sensorless control method are combined to realize the sensorless flux weakening control method to improve the stability of the control system. Finally, the proposed algorithm is validated on the experimental platform. The experimental results show that the proposed method can prevent the system from losing control during flux weakening processes, effectively improve system stability, and have smaller angle errors. The speed convergence time is shortened by 80% compared to the non flux weakening control.

1. Liu, Xin, Yanfei Pan, Yilin Zhu, Hui Han, and Lei Ji, "Decoupling control of permanent magnet synchronous motor based on parameter identification of fuzzy least square method," Progress In Electromagnetics Research M, Vol. 103, 49-60, 2021.

2. Zhu, Lidong, Ben Xu, and Huangqiu Zhu, "Interior permanent magnet synchronous motor dead-time compensation combined with extended kalman and neural network bandpass filter," Progress In Electromagnetics Research M, Vol. 98, 193-203, 2020.

3. Wang, Gaolin, Maria Valla, and Jorge Solsona, "Position sensorless permanent magnet synchronous machine drives — A review," IEEE Transactions on Industrial Electronics, Vol. 67, No. 7, 5830-5842, 2019.

4. Xu, Dianguo, Bo Wang, Guoqiang Zhang, Gaolin Wang, and Yong Yu, "A review of sensorless control methods for AC motor drives," CES Transactions on Electrical Machines and Systems, Vol. 2, No. 1, 104-115, 2018.

5. Sun, X., Y. Zhang, X. Tian, J. Cao, and J. 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.

6. Xiao, Dianxun, Shamsuddeen Nalakath, Silvio Rotilli Filho, Gaoliang Fang, Alice Dong, Yingguang Sun, Jason Wiseman, and Ali Emadi, "Universal full-speed sensorless control scheme for interior permanent magnet synchronous motors," IEEE Transactions on Power Electronics, Vol. 36, No. 4, 4723-4737, 2020.

7. Li, Chengrui, Gaolin Wang, Guoqiang Zhang, Nannan Zhao, and Dianguo Xu, "Adaptive pseudorandom high-frequency square-wave voltage injection based sensorless control for SynRM drives," IEEE Transactions on Power Electronics, Vol. 36, No. 3, 3200-3210, 2020.

8. Wu, Ting, Derong Luo, Xuan Wu, Kan Liu, Shoudao Huang, and Xiaoyan Peng, "Square-wave voltage injection based PMSM sensorless control considering time delay at low switching frequency," IEEE Transactions on Industrial Electronics, Vol. 69, No. 6, 5525-5535, 2021.

9. Li, Haoyuan, Xing Zhang, Shuying Yang, and Shanhong Liu, "Unified graphical model of high-frequency signal injection methods for PMSM sensorless control," IEEE Transactions on Industrial Electronics, Vol. 67, No. 6, 4411-4421, 2019.

10. Tang, Qipeng, Anwen Shen, Pan Luo, Hanlin Shen, Wuhua Li, and Xiangning He, "IPMSMs sensorless MTPA control based on virtual q-axis inductance by using virtual high-frequency signal injection," IEEE Transactions on Industrial Electronics, Vol. 67, No. 1, 136-146, 2019.

11. Zhang, Xu, Bo Wang, Yong Yu, Jing Zhang, and Dianguo Xu, "Overmodulation index optimization method for torque quality improvement in induction motor field-weakening control," IEEE Transactions on Industrial Electronics, Vol. 68, No. 12, 11954-11967, 2020.

12. Miguel-Espinar, Carlos, Daniel Heredero-Peris, Gabriel Gross, Marc Llonch-Masachs, and Daniel Montesinos-Miracle, "Maximum torque per voltage flux-weakening strategy with speed limiter for PMSM drives," IEEE Transactions on Industrial Electronics, Vol. 68, No. 10, 9254-9264, 2020.

13. Deng, Tao, Zhenhua Su, Junying Li, Peng Tang, Xing Chen, and Ping Liu, "Advanced angle field weakening control strategy of permanent magnet synchronous motor," IEEE Transactions on Vehicular Technology, Vol. 68, No. 4, 3424-3435, 2019.

14. Zhang, Z., "Sensorless control of synchronous machines using fundamental back-EMF voltage --- A review," IEEE Transactions on Power Electronics, 1-1, 2022.

15. Xu, Wenjun, Shaocheng Qu, Liang Zhao, and Hongrui Zhang, "An improved adaptive sliding mode observer for middle-and high-speed rotor tracking," IEEE Transactions on Power Electronics, Vol. 36, No. 1, 1043-1053, 2020.

16. Volpato Filho, Cesar Jose and Rodrigo Padilha Vieira, "Adaptive full-order observer analysis and design for sensorless interior permanent magnet synchronous motors drives," IEEE Transactions on Industrial Electronics, Vol. 68, No. 8, 6527-6536, 2020.

17. Zuo, Ying, Chunyan Lai, and K. Lakshmi Varaha Iyer, "A review of sliding mode observer based sensorless control methods for PMSM drive," IEEE Transactions on Power Electronics, Vol. 38, No. 9, 11352-11367, 2023.

18. Boldea, Ion, Mihaela Codruta Paicu, and Gheorghe-Daniel Andreescu, "Active flux concept for motion-sensorless unified AC drives," IEEE Transactions on Power Electronics, Vol. 23, No. 5, 2612-2618, 2008.

19. Chen, Dongdong, Jin Wang, and Libing Zhou, "Adaptive second-order active-flux observer for sensorless control of PMSMs with MRAS-based VSI non-linearity compensation," IEEE Journal of Emerging and Selected Topics in Power Electronics, Vol. 11, No. 3, 3076-3086, 2023.

20. Chen, Jiahao, Jie Mei, Xin Yuan, Yuefei Zuo, and Christopher H. T. Lee, "Natural speed observer for nonsalient AC motors," IEEE Transactions on Power Electronics, Vol. 37, No. 1, 14-20, 2021.

21. Woldegiorgis, Abebe Teklu, Xinglai Ge, Huimin Wang, and Mannan Hassan, "A new frequency adaptive second-order disturbance observer for sensorless vector control of interior permanent magnet synchronous motor," IEEE Transactions on Industrial Electronics, Vol. 68, No. 12, 11847-11857, 2020.

22. Varatharajan, Anantaram, Gianmario Pellegrino, Eric Armando, and Marko Hinkkanen, "Sensorless synchronous motor drives: A review of flux observer-based position estimation schemes using the projection vector framework," IEEE Transactions on Power Electronics, Vol. 36, No. 7, 8171-8180, 2021.

23. Yoo, Jiwon, Joohyun Lee, and Seung-Ki Sul, "Analysis of instability in torque control of sensorless PMSM drives in flux weakening region," IEEE Transactions on Power Electronics, Vol. 36, No. 9, 10815-10826, 2021.

24. Ekanayake, Sithumini, Rukmi Dutta, Faz Rahman, and Bui Minh Xuan, "Position sensorless control of an interior permanent magnet synchronous machine (IPMSM) in deep flux-weakening region," 2018 IEEE 9th International Symposium on Sensorless Control For Electrical Drives (SLED), 114-119, 2018.

Dr. Kun Li

Dr. Lin Wang

Dr. Yilin Zhu