Acceleration Responses Robustness of Active Magnetic Bearings-Rigid Rotor System

被引：0
作者：
Gong L. [1 ]
Yang Z. [2 ]
Zhu C. [1 ]
机构：
[1] College of Electrical Engineering, Zhejiang University, Hangzhou
[2] No.704 Research Institute, China Shipbuilding Industry Corporation, Shanghai
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2021年 / 36卷 / 02期
关键词：
Acceleration characteristic; Active magnetic bearings; H[!sub]∞[!/sub]robust controller; PID controller; Rigid rotor;
D O I：
10.19595/j.cnki.1000-6753.tces.191001
中图分类号：
学科分类号：
摘要：
The acceleration response is a significant dynamic characteristic of active magnetic bearings (AMBs)-rigid rotor system. Currently, the research mainly focuses on the steady state characteristics of AMBs-rigid rotor system, and there are few studies on the acceleration characteristics. In this paper, taking AMBs-rigid rotor system as the object, the acceleration characteristics caused by different imbalance mass under PID controller and H∞ robust controller were studied. Firstly, the dynamic equation of AMBs-rigid rotor system in the process of accelerating motion was established. Then, the design principle of PID controller and H∞ robust controller and the stability of closed loop system were analyzed. Meanwhile, the influence of PID control parameters on the acceleration characteristics of AMBs-rigid rotor system was studied. Because of strong robustness of H∞ robust controller, the acceleration characteristics are not sensitive to the system parameters. Finally, simulation and experimental results verified the acceleration characteristics of AMBs-rigid rotor system under PID control and H∞ robust control. It is shown that the change of PID control parameters affects the acceleration characteristics of the rotor system, while the acceleration characteristics of the AMBs-rigid rotor system by H∞ robust control are almost not affected by the acceleration, which is quite different from the acceleration characteristics of PID control and traditional rotor system. © 2021, Electrical Technology Press Co. Ltd. All right reserved.
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页码：268 / 281
页数：13
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