Internal model control for the AMB high-speed flywheel rotor system based on modal separation and inverse system method
Internal model control for the AMB high-speed flywheel rotor system based on modal separation and inverse system method
复制标题
基于模态分离和逆系统方法的AMB高速飞轮转子系统内模控制
DOI：
10.1049/iet-epa.2018.5646
复制
发表时间：
2019
影响因子：
1.7
通讯作者：
Zhao Wenlong
中科院分区：
文献类型：
--
作者：
Chen Liangliang;Zhu Changsheng;Zhong Zhixian;Sun Min;Zhao Wenlong
为了消除陀螺效应对系统稳定性的影响，提高主动磁轴承高速飞轮转子系统的控制性能，提出了一种基于模态分离和逆系统方法的控制策略。首先采用模态分离法对磁悬浮飞轮转子系统的平动运动和转动运动进行解耦，然后采用逆系统方法对转动运动进行解耦，从而将磁悬浮飞轮转子系统这一多变量强耦合系统解耦为4个子系统。最后，子系统分别由四个两自由度（2-DOF）内模控制器进行调节。在此基础上，对该控制策略的稳定性、跟踪性和鲁棒性进行了理论分析，并通过仿真和实验进一步研究了该控制策略对电磁轴承高速飞轮转子系统振动控制的有效性。结果表明，该控制策略能够实现磁悬浮轴承高速飞轮转子系统的稳定悬浮，有效抑制其从静态到24，000 rpm的振动，具有稳定性高、鲁棒性强、跟踪性能和抗干扰性能好等优点。
To eliminate the influence of gyroscopic effect on system stability and to improve the control performances for the active magnetic bearing (AMB) high‐speed flywheel rotor system, a novel control strategy based on the modal separation and inverse system method is proposed. The translational motions and rotational motions of the AMB flywheel rotor system are firstly decoupled by the modal separation, then the rotational motions are decoupled by the inverse system method, so that the AMB flywheel rotor system, which is a multivariable and strong coupled system, is decoupled into four subsystems. Finally, the subsystems are regulated by four two‐degrees‐of‐freedom (2‐DOF) internal model controllers, respectively. Furthermore, the stability, tracking and robustness of the novel control strategy are analysed theoretically, and its effectiveness on vibration control of the AMB high‐speed flywheel rotor system is further investigated by simulations and experiments. The results show that the novel control strategy can achieve stable suspension and effectively suppress the vibration of the AMB high‐speed flywheel rotor system from static state to 24,000 rpm, with the advantages of high stability, strong robustness, and good performances of tracking and disturbance rejection simultaneously.