表贴式永磁同步电机中高速无位置传感器控制技术比较研究

doi:10.16180/j.cnki.issn1007-7820.2021.10.002

Abstract

Abstract:

In this study, three sensorless estimation algorithms are investigated for the position sensorless technology in the high-speed operation mode in permanent magnet synchronous motors, including the sliding-mode observer, the Luenberger observer, and the model-referenced adaptive system. The sliding mode observer algorithm has good stability, but due to the existence of the discontinuous switching value of the system, it is not conducive to extracting the effective back EMF. By adding a filter, the back EMF can be effectively extracted. Luenberger algorithm is simple, but back EMF coupling can lead to some interfering signals. For engineering purposes, a phase-locked loops needs to be added to make the estimation more accurate. The model reference adaptive system is relatively complicated, so the feedback adaptive law is designed based on Popov stability theory. Simulation analysis of three sensorless observer algorithms show that the sliding-mode observer algorithm has the best robustness. Compared with the Luenberger algorithm, it has fewer parameter and is conducive to engineering realization. The adaptive law design of MRAS is complicated by the fact that two sets of models are required for calculation. Therefore, the performance requirements of the controller are relatively high, which is not conducive to engineering implementation.

Key words: position sensorless control system, motor drivers, permanent magnet synchronous motor, sensorless algorithms, Luenberger observer, sliding mode observer, model reference adaptive system observer, observer

CLC Number:

TP273

CUI Bo,FANG Lingli,JIANG Quan,BI Chao. A Comparative Study of High-Speed Position Sensorless Control Technology in Surface Mounted Permanent Magnet Synchronous Motors[J].Electronic Science and Technology, 2021, 34(10): 8-10.

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References 18

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转速估算算法	1 000	1 400	1 800	2 200	1 600
SMO	10	8	10	11	9
MRAS	60	80	120	150	190

转速/r·min^-1 估算算法	1 000	1 400	1 800	2 200	1 600
SMO	0.050 rad	0.060 rad	0.075 rad	0.090 rad	0.065 rad
MRAS	0.400 rad	0.030 rad	0.030 rad	0.600 rad	0.050 rad

转速估算算法	1 000	1 400		1 800		2 200		1 600
SMO	10		8		10		11		9
LUO	4		2		5		6		0

转速估算算法	1 400	1 800	2 200	1 600
SMO	16	14	14	15
LUO	100	50	60	-80

转速/r·min^-1 估算算法	1 000	1 400	1 800	2 200	1 600
SMO	0.050 rad	0.060 rad	0.075 rad	0.090 rad	0.065 rad
LUO	0.100 rad	0.200 rad	0.260 rad	0.370 rad	0.220 rad

A Comparative Study of High-Speed Position Sensorless Control Technology in Surface Mounted Permanent Magnet Synchronous Motors

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转速/r·min^-1 估算算法	1 000	1 400	1 800	2 200	1 600
MRAS	0.40 rad	0.02 rad	0.02 rad	0.60 rad	0.05 rad
LU	0.10 rad	0.20 rad	0.26 rad	0.37 rad	0.22 rad

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