Sensorless control strategy for switched reluctance machines

被引：0
|
作者：
Wang Q. [1 ]
Jiang Z. [1 ]
Wang L. [1 ]
Xu X. [1 ]
Ding J. [1 ]
Liu T. [2 ]
机构：
[1] College of Information Engineering, Nanchang University, Nanchang
[2] College of Mathematics and Computer Science, Nanchang University, Nanchang
来源：
Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2024年 / 28卷 / 04期
关键词：
current injection; fixed point detection; rotor position reconstruction; sensorless control; switched reluctance motor;
D O I：
10.15938/j.emc.2024.04.016
中图分类号：
学科分类号：
摘要：
A sensorless control strategy was proposed for switched reluctance motor, which includes initial rotor position monitoring, start-up operation, position reconstruction and speed regulation. First, the current rise time of phase current within the hysteresis bandwidth at fixed position was measured off-line and stored as initial threshold for the start-up process; then the initial position was partitioned by comparing the current rise time of each phase within the hysteresis bandwidth by small current injection. The motor was then started with the initial threshold, which was updated according to actual operating process. The newly updated threshold was employed as the detection feature for the next period. Then, the rotor position was reconstructed and the speed was estimated according to detected threshold signal. And commutation and speed regulation were achieved accordingly. In the end, simulation and experimental results were conducted presented to demonstrate effectiveness and accuracy of the proposed sensorless strategy. © 2024 Editorial Department of Electric Machines and Control. All rights reserved.
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页码：149 / 157
页数：8
相关论文
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