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所属单位：自动化学院

发表刊物：IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS

关键字：Active magnetic bearing (AMB) complex coefficient frequency characteristics gyroscopic effect synchronous vibration

摘要：To effectively suppress the synchronous vibration torques for a magnetically suspended rotor (MSR) with significant gyroscopic effects and serious coupling dynamics, a novel cross-feedback notch filter is proposed in this paper. First, the coupled multi-input-multi-output active magnetic bearing rotor system is converted into an equivalent complex single-input single-output (SISO) system. The equivalent transformation aims at easing the controller design and extending the classical stability criterion to the complex coefficient frequency domain. Then, the principle and implementation of the proposed scheme used for synchronous vibration suppression over an entire rotational speed range is analyzed in details. The performance compared with the conventional decentralized notch filter is investigated. Moreover, the closed-loop stability, which based on the equivalent complex SISO system and complex-coefficient stability criterion is given. Experimental results on a magnetically suspended flywheel demonstrate the significant effect of the proposed method on both synchronous vibration suppression and stability preservation.

ISSN号：0278-0046

是否译文：否

发表时间：2017-09-01

合写作者：Sun, Jinji,Miao, Cunxiao,Fang, Jiancheng

通讯作者：Sun, Jinji,彭聪,彭聪