文章基本信息

标题：Disturbance and uncertainty estimator-based cascaded position-current controller for active magnetic bearing system
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作者：Yao-Nan Wang
期刊名称：Advances in Mechanical Engineering
印刷版ISSN：1687-8140
电子版ISSN：1687-8140
出版年度：2019
卷号：11
期号：3
页码：1-12
DOI：10.1177/1687814019835357
出版社：Sage Publications Ltd.
摘要：This article presents a robust control method; all of the unknown disturbances and uncertainty values will be rejected. Suspension of active magnetic bearing system is aimed to figure out that the proposed control method is implementable for highly nonlinear unstable system. First, system state is described by dynamic model, with unknown lump of uncertainty value. Subsequently, the cascade control with inner and outer loops is defined by sliding mode control based on disturbance and uncertainty estimator. The outer control loop is used to force the system state converge on the predefined surface, while inner control loop is used to control the current of electrical part of the system. Finally, the simulation results show that the proposed control method is good at tracking trajectory.
关键词：Active magnetic bearing;sliding mode control;disturbance and uncertainty estimator