Harmonic Vibration Force Suppression of Magnetically Suspended Rotor With Frequency-Domain Adaptive LMS

被引：19

作者：

Cui, Peiling ^{[1
]}

Liu, Zhiyuan ^{[1
]}

Xu, Han ^{[1
]}

Zheng, Shiqiang ^{[1
]}

Han, Bangcheng ^{[1
]}

Zhang, Dachuan ^{[1
]}

机构：

[1] Beihang Univ, Sch Instrumentat & Optoelect Engn, Beijing 100191, Peoples R China

来源：

IEEE SENSORS JOURNAL | 2020年 / 20卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Frequency-domain; harmonic vibration; least mean square (LMS); magnetically suspended rotor; suppression; BEARING SYSTEMS; SENSOR RUNOUT; IMBALANCE; COMPENSATION;

D O I：

10.1109/JSEN.2019.2946628

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In magnetically suspended rotor (MSR) system, harmonic vibration appears inevitably produced by mass imbalance of the rotor and sensor runout. Leastmean square (LMS) is one method to reject the harmonic frequency component of the disturbance in a control system. Nevertheless, the performance of the conventional LMS is not optimal and the transient response is relatively slow. In this paper, the rotor dynamic model including mass imbalance and sensor runout is built, and the mechanism of vibration is analyzed. A harmonic vibration force suppressionmethod based on frequency-domainadaptiveLMS is proposed. Compared to the existing adaptive LMS methods, this article introduces a new convergence factor in frequencydomain, which improves the updating strategy of the step size and the convergence rate of the algorithm. Simulation results demonstrate that the proposed method can effectively restrain the harmonic vibration force of magnetically suspended rotor system.

引用

页码：1166 / 1175

页数：10

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