控制理论(社会学)
转子(电动)
磁力轴承
飞轮
磁场
离心力
刚度
物理
工程类
计算机科学
机械
结构工程
机械工程
控制(管理)
量子力学
人工智能
流量(数学)
出处
期刊:IEEE-ASME Transactions on Mechatronics
[Institute of Electrical and Electronics Engineers]
日期:2016-04-01
卷期号:21 (2): 1140-1150
被引量:41
标识
DOI:10.1109/tmech.2015.2495225
摘要
To effectively reject the influence of rotor unbalance on system stability and precision for a magnetically suspended flywheel, this paper proposes a novel rigid rotor field dynamic balancing method based on autocentering control and the equivalence of magnetic control force and the rotor unbalance centrifugal force. By the autocentering control, the rotor is forced to rotate around its geometric axis. After demonstrating the equivalence of the external control force and the rotor unbalance centrifugal force, the rotor unbalance can be identified from the magnetic force. Since the position of the rotor geometric axis can be measured precisely by an eddy current displacement sensor, the high-precision autocentering control can be achieved easily. Furthermore, since the magnetic force is proportional to the control current when the rotor is at its equilibrium point, the magnetic force can be obtained by measuring the control current and multiplying it with the force-current stiffness. Without trial weights, the efficiency of the proposed field dynamic balancing method is high. Finally, the effectiveness and superiority of the proposed rotor balancing strategy have been demonstrated by the experimental results.
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