Rotor vibration feedforward compensation control in bearingless induction motor based on coordinate transformation

被引：0
|
作者：
Yang Z. [1 ]
Dong D. [1 ]
Sun X. [1 ]
Jin R. [1 ]
Yu P. [1 ]
机构：
[1] School of Electrical and Information Engineering, Jiangsu University, Zhenjiang
来源：
Yang, Zebin (zbyang@ujs.edu.cn) | 2016年 / Central South University of Technology卷 / 47期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Bearingless induction motor; Feedforward compensation control; Rotor eccentric mass; Vibration suppression;
D O I：
10.11817/j.issn.1672-7207.2016.05.013
中图分类号：
学科分类号：
摘要：
To solve the rotor mass eccentric problem caused by mechanical imbalance for the bearingless induction motor at high speed, a rotor vibration feedforward compensation control system was designed based on coordinate transformation. The vibration signal was extracted from the displacement signal by rotating coordinate transformation and was added to the original radial suspension force control system. Then, a feedforward compensator was formed, which increased the given period radial suspension force component control signal and amplified the stiffness of the vibration signal of the radial suspension force control system. The rotor vibration was suppressed by forcing the rotor rotating around its geometric center axis. The results show that the compensated rotor vibration peak to peak value in simulation is about 11 µm at the speed of 6 000 r/min. The vibration of suspension rotor can be effectively restrained and the precision of rotor is improved in this control strategy. The presented feedforward compensation control method can make the peak to peak value of rotor radial displacement range within 40 μm. The correctness and effectiveness of the proposed method are verified. © 2016, Central South University of Technology. All right reserved.
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页码：1543 / 1550
页数：7
相关论文
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