改进滑模观测器的电流源逆变器驱动PMSM无位置传感器控制

doi:10.19595/j.cnki.1000-6753.tces.222146

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (3891 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Due to the overlap effect of the current source inverter and the large current pulsation of the bus controlled by the front DC-DC, the extended back electromotive force contains a large number of harmonics, producing large position errors, which in turn affect the performance of the system. Therefore, this paper proposes a sensorless control method of the permanent magnet synchronous motor driven by the current source inverter with an improved sliding mode observer. The proposed method can reduce the harmonic distortion of the estimated back electromotive force caused by the overlapping current effect and the large busbar current pulsation, thereby reducing the position error and speed pulsation, which has good dynamic performance.
Firstly, based on the traditional sliding mode observer, the voltage model of the permanent magnet synchronous motor is established under the α-β stationary coordinate system, and the observer is constructed according to the voltage model. The chattering of the system is reduced using the saturation function instead of the sign function in the ideal sliding mode. Since the traditional sliding mode observer uses a first-order low-pass filter to filter the observed back electromotive force, the problems of phase lag and amplitude attenuation will be caused, and there are still excessive high-frequency chattering components in the observed back electromotive force. Therefore, a complex coefficient filter without phase delay and amplitude attenuation at the center frequency is designed to replace the traditional low-pass filter. The estimated back potential can be accurately extracted, and the phase lag and amplitude attenuation problems can be avoided while chattering is suppressed. At the same time, the velocity information estimated by the phase-locked loop is fed back to the coefficient filter to realize the adaptability of the complex coefficient filter.
Secondly, the complex coefficient filter can filter out part of the 5th and 7th harmonics in the observed back electromotive force, forming the 6th position error signal to affect the position observation accuracy. Thus, the second-order generalized integrator is embedded in the phase-locked loop, and the notch property is used to eliminate the sixth harmonics in the position error signal to further improve the position observation accuracy. At the same time, the reference speed is introduced into the phase-locked loop to improve the convergence speed of the phase-locked loop and the dynamic performance of the system.
Finally, the experimental results show that compared with the traditional sliding mode observer, the estimated back electromotive force harmonic distortion is reduced from 8.9% to 4.12%, and the stator current harmonic distortion is reduced from 8.25% to 6.87%. The rotor position error is reduced by 25%, and the rotational speed error by 30%. The results show that the proposed method can better reduce the harmonic disturbance in the estimated back electromotive force, reduce the speed pulsation and position error, improve the estimation accuracy, and have good dynamic performance.

Key words： Permanent magnet synchronous motor (PMSM) current source inverter (CSI) improved sliding mode observer complex coefficient filters sensorless control

Received: 15 November 2022

PACS:

TM315

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Zhao Wengxiang
	Song Shichang
	Zhou Shuwen
	Tao Tao

Cite this article:

Zhao Wengxiang,Song Shichang,Zhou Shuwen等. Sensorless Control of Current Source Inverter Driven PMSM with Improved Sliding Mode Observer[J]. Transactions of China Electrotechnical Society, 2024, 39(4): 987-995.

URL:

https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.222146 OR https://dgjsxb.ces-transaction.com/EN/Y2024/V39/I4/987

[1] 李昱, 郭宏, 平朝春, 等. 基于电流源变流器的永磁同步电机驱动系统全状态变量预测转矩控制[J]. 电工技术学报, 2021, 36(1): 15-26.
Li Yu, Guo Hong, Ping Zhaochun, et al.A full-state variable predictive torque control of current source converter fed permanent magnet synchronous motor drives[J]. Transactions of China Electrotechnical Society, 2021, 36(1): 15-26.
[2] Amorim T R, Dai Hang, Lee W, et al.Current-source inverter integrated motor drives using dual-gate four-quadrant wide-bandgap power switches[J]. IEEE Transactions on Industry Applications, 2021, 57(5): 5183-5198.
[3] Liu Pengcheng, Wang Zheng, Wei Sanmin, et al.Recent developments of modulation and control for high-power current-source-converters fed electric machine systems[J]. CES Transactions on Electrical Machines and Systems, 2020, 4(3): 215-226.
[4] Xu Yang, Wang Zheng, Liu Pengcheng, et al.The modular current-fed high-frequency isolated matrix converters for wind energy conversion[J]. IEEE Transactions on Power Electronics, 2022, 37(4): 4779-4791.
[5] 麦志勤, 刘计龙, 肖飞, 等. 基于估计位置反馈电流解调算法的改进型高频旋转电压注入无位置传感器控制策略[J]. 电工技术学报, 2022, 37(4): 870-881, 891.
Mai Zhiqin, Liu Jilong, Xiao Fei, et al.Sensorless control strategy of improved HF rotating voltage injection based on estimated position feedback current demodulation algorithm[J]. Transactions of China Electrotechnical Society, 2022, 37(4): 870-881, 891.
[6] 阙鸿杰, 全力, 张丽, 等. 基于自适应滤波器在线解耦的磁场增强型永磁电机无位置传感器控制[J]. 电工技术学报, 2022, 37(2): 344-354.
Que Hongjie, Quan Li, Zhang Li, et al.Sensorless control of flux-intensifying permanent magnet syn- chronous motor based on adaptive Notch filter online decoupling[J]. Transactions of China Electrotechnical Society, 2022, 37(2): 344-354.
[7] Zhang Guoqiang, Wang Gaolin, Wang Huiying, et al.Pseudorandom-frequency sinusoidal injection based sensorless IPMSM drives with tolerance for system delays[J]. IEEE Transactions on Power Electronics, 2019, 34(4): 3623-3632.
[8] Wang Gaolin, Yang Lei, Yuan Bihe, et al.Pseudo- random high-frequency square-wave voltage injection based sensorless control of IPMSM drives for audible noise reduction[J]. IEEE Transactions on Industrial Electronics, 2016, 63(12): 7423-7433.
[9] 于安博, 刘利, 阚志忠, 等. 高频脉振信号注入永磁同步电机无滤波器初始位置辨识方法[J]. 电工技术学报, 2021, 36(4): 801-809.
Yu Anbo, Liu Li, Kan Zhizhong, et al.Initial position identification of PMSM with filterless high frequency pulse signal injection method[J]. Transactions of China Electrotechnical Society, 2021, 36(4): 801-809.
[10] 吴春, 陈科, 南余荣, 等. 考虑交叉饱和效应的变角度方波电压注入永磁同步电机无位置传感器控制[J]. 电工技术学报, 2020, 35(22): 4678-4687.
Wu Chun, Chen Ke, Nan Yurong, et al.Variable angle square-wave voltage injection for sensorless control of PMSM considering cross-saturation effect[J]. Transactions of China Electrotechnical Society, 2020, 35(22): 4678-4687.
[11] Zhang Guoqiang, Wang Gaolin, Wang Huiying, et al.Pseudorandom-frequency sinusoidal injection based sensorless IPMSM drives with tolerance for system delays[J]. IEEE Transactions on Power Electronics, 2019, 34(4): 3623-3632.
[12] Al-nabi E, Wu Bin, Zargari N R, et al. Sensorless control of CSC-fed IPM machine for zero- and low-speed operations using pulsating HFI method[J]. IEEE Transactions on Industrial Electronics, 2013, 60(5): 1711-1723.
[13] Prabhakaran K K, Karthikeyan A.Electromagnetic torque-based model reference adaptive system speed estimator for sensorless surface mount permanent magnet synchronous motor drive[J]. IEEE Transa- ctions on Industrial Electronics, 2020, 67(7): 5936-5947.
[14] Bouheraoua M, Wang Jiabin, Atallah K.Rotor position estimation of a pseudo direct-drive PM machine using extended Kalman filter[J]. IEEE Transactions on Industry Applications, 2017, 53(2): 1088-1095.
[15] Yin Zhonggang, Zhang Yanping, Cao Xinping, et al.Estimated position error suppression using novel PLL for IPMSM sensorless drives based on full-order SMO[J]. IEEE Transactions on Power Electronics, 2022, 37(4): 4463-4474.
[16] Wang Bo, Shao Yanzhen, Yu Yong, et al.High-order terminal sliding-mode observer for chattering suppression and finite-time convergence in sensorless SPMSM drives[J]. IEEE Transactions on Power Electronics, 2021, 36(10): 11910-11920.
[17] Ding Li, Li Yunwei, Zargari N R, et al.Sensorless control of CSC-fed PMSM drives with low switching frequency for electrical submersible pump appli- cation[J]. IEEE Transactions on Industry Applications, 2020, 56(4): 3799-3808.
[18] Wu Xuan, Huang Sheng, Liu Kan, et al.Enhanced position sensorless control using bilinear recursive least squares adaptive filter for interior permanent magnet synchronous motor[J]. IEEE Transactions on Power Electronics, 2020, 35(1): 681-698.
[19] Song Xinda, Fang Jiancheng, Han Bangcheng, et al.Adaptive compensation method for high-speed surface PMSM sensorless drives of EMF-based position estimation error[J]. IEEE Transactions on Power Electronics, 2016, 31(2): 1438-1449.
[20] Ding Li, Li Yunwei, Zargari N R.Discrete-time SMO sensorless control of current source converter-fed PMSM drives with low switching frequency[J]. IEEE Transactions on Industrial Electronics, 2021, 68(3): 2120-2129.