基于逆系统解耦的电磁轴承飞轮转子系统二自由度控制

doi:10.19595/j.cnki.1000-6753.tces.161866

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摘要

针对电磁轴承高速飞轮转子系统的振动抑制问题,提出了一种基于逆系统解耦和改进型二自由度控制的方法。首先采用逆系统方法对电磁轴承飞轮转子系统进行解耦,将非线性、强耦合的电磁轴承飞轮转子系统解耦为四个彼此独立的子系统,再用改进型二自由度控制器对解耦后的子系统进行整定,使控制系统的设定值跟踪及外扰抑制特性能够分别调节,并通过速度观测器获取阻尼控制信号,增强系统的抗噪声能力。从理论上分析了所提出控制算法的稳定性、设定值跟踪性能及鲁棒性,并对其性能进行了仿真和实验验证。结果表明,该文提出的控制算法能够使飞轮转子稳定悬浮并有效抑制其振动,具有稳定性好、鲁棒性强、抗噪声能力强等优点。

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	陈亮亮
	祝长生
	王忠博

关键词 ：主动电磁轴承, 飞轮储能, 逆系统方法, 速度观测器, 二自由度控制

Abstract：

For the vibration suppression of active magnetic bearing (AMB) high-speed flywheel rotor system, a control strategy based on inverse system decoupling and improved two-degree-of-freedom (2DOF) control was proposed in this paper. The AMB flywheelrotor system was decoupled by the inverse system method firstly, so that the AMB flywheelrotor system, which was a nonlinear, strong coupling system, was decoupled into four independent subsystems. Then, the decoupled subsystems were adjusted by the improved 2DOF controller, which can regulate the performances of set-point tracking and disturbance rejection, respectively. In the improved 2DOF controller, the damping control signal was obtained by velocity estimator, so that the ability of against noise can be improved. The stability, set-point tracking and robustness of control strategyproposed were analyzed in theory, and its ability and effectiveness to control the vibration of AMB high-speed flywheel rotor system were further investigated by simulations and experiments. It is shown that the control strategy proposed can stably suspend the AMB high-speed flywheel rotor systemand effectively suppress its vibrations, with the advantages of highstability, strong robustness, and good ability of against noise.

Key words： Active magnetic bearing (AMB) flywheel energy storage inverse system method velocity estimator two-degree-of-freedom control

收稿日期: 2016-11-28 出版日期: 2017-12-22

PACS:

TM355

基金资助:

国家自然科学基金项目（11632015,51477155,51565009）和浙江省自然科学基金项目（LZ13E070001）资助

通讯作者: 陈亮亮男,1984年生,博士,讲师,研究方向为磁悬浮高速飞轮储能系统控制、高速永磁电机设计等。E-mail：chenlian0510@163.com

作者简介: 祝长生男,1963年生,博士,教授,研究方向为电磁轴承、高速电机、高速飞轮储能系统、电机的振动与噪声等。E-mail：zhu_zhang@zju.edu.cn

引用本文:

陈亮亮, 祝长生, 王忠博. 基于逆系统解耦的电磁轴承飞轮转子系统二自由度控制[J]. 电工技术学报, 2017, 32(23): 100-114. Chen Liangliang, Zhu Changsheng, Wang Zhongbo. Two-Degree-of-Freedom Control for Active Magnetic Bearing Flywheel Rotor System Based on Inverse System Decoupling. Transactions of China Electrotechnical Society, 2017, 32(23): 100-114.

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