Synchronous Vibration Suppression of an Active Magnetic Bearing-flexible Rotor System Passing Multiple Critical Speeds Regions

被引：0
|
作者：
Li W. [1 ]
Zhu C. [1 ]
机构：
[1] College of Electrical Engineering, Zhejiang University, Zhejiang Province, Hangzhou
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2023年 / 43卷 / 14期
关键词：
active disturbance rejection control; active magnetic bearings (AMBs); flexible rotor; synchronous vibration suppression; unbalance compensation;
D O I：
10.13334/j.0258-8013.pcsee.220647
中图分类号：
学科分类号：
摘要：
In order to suppress the synchronous unbalance vibration of active magnetic bearings (AMBs)-flexible rotor system in the full rotational speed range including multiple bending critical speed regions, the model of AMBs-flexible rotor system is established. Then, an active disturbance rejection tracking compensation method based on the least mean square (LMS) with the phase shifted is proposed in this paper. The phase shifted LMS algorithm is applied to the tracking of synchronous unbalance disturbance to solve the problem that linear extended state observer cannot accurately estimate high-frequency synchronous unbalance disturbance. The compensation characteristics are analyzed in the aspect of compensation method, compensation effectiveness and closed-loop system stability. Finally, experiments are carried out in an AMBs-multi-disc flexible rotor system test rig. The results show that the strategy based on the phase shifted LMS proposed in this paper can effectively suppress the synchronous unbalance vibration of the rotor in the full rotational speed range, including the cylindrical, conical, first and second order bending mode frequencies without polarity or phase switching. The rotor system can work stably in the rotational speed region higher than the second order bending critical rotational speed. ©2023 Chin.Soc.for Elec.Eng. 5653.
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页码：5653 / 5662
页数：9
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