Vibration suppressing with mixed weight for multi-targets in active magnetic bearing-flexible rotor system
JIANG Ke jian, ZHU Chang sheng
1. College of Informatics and Electronics, Zhejiang SciTech University, Hangzhou 310018, China;
2. College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
An exceedingly great magnetic force can often be required by the influence coefficient, so that the magnetic force saturating would destroy the stability of rotor levitating. A vibration suppressing method with mixed weight for multi-cost functions was proposed. Not only the rotor vibration can be given attention, but also the required magnetic force is considered in the cost function. The simulation results indicate that the proposed method can mediate not only among a group of the target nodes vibration, but between the rotor vibration and the required magnetic force. The advantage of the proposed method means that the requirement for the magnetic force of active magnetic bearing (AMB) can be appropriately decreased as long as the rotor vibration is within the allowable range. The method provides the feasible way for the low-power control of AMB.
JIANG Ke jian, ZHU Chang sheng. Vibration suppressing with mixed weight for multi-targets in active magnetic bearing-flexible rotor system. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2016, 50(10): 1946-1951.
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