Sensorless Fault-tolerant Control of SRM at Medium High Speed Based on the Inductance Threshold Constraint Within the Feature Position Interval

被引：0

作者：

Sun Q. ^{[1
]}

Lan T. ^{[2
]}

Liu X. ^{[2
]}

机构：

[1] State Key Laboratory of Reliability and Intelligence of Electrical Equipment(Hebei University of Technology, Beichen District, Tianjin

[2] Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province, Hebei University of Technology, Beichen District, Tianjin

来源：

Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2023年 / 43卷 / 12期

基金：

中国国家自然科学基金;

关键词：

adaptive auxiliary current chopping control; inductance threshold constraint; maximum inductance detection; sensorless fault-tolerant control; switched reluctance motor (SRM);

D O I：

10.13334/j.0258-8013.pcsee.220152

中图分类号：

学科分类号：

摘要：

Aiming at the position estimation disturbance caused by the advanced turn-on angle and the magnetic saturation for switched reluctance motor (SRM) drives, this paper proposes a sensorless fault-tolerant control scheme at medium high speed based on the inductance threshold constraint within the feature position interval, which effectively improves the accuracy and reliability of aligned position estimation. Considering the difficulty in extracting the aligned position information when the current level is low, an adaptive start-stop control strategy is proposed based on the auxiliary current chopping control. The feature position can be accurately identified when the motor works under light load or the reference speed drops suddenly. Meanwhile the unnecessary switching losses and negative torque are effectively avoided. Simulation and experimental results verify the effectiveness of the proposed sensorless control scheme under light load, heavy load, reference speed mutation, and load mutation conditions. ©2023 Chin.Soc.for Elec.Eng.

引用

页码：4800 / 4810

页数：10

共 26 条

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