【摘要】：針對無軸承異步電機由質量偏心引起不平衡振動問題,提出了一種基于前饋控制的無軸承異步電機動不平衡振動補償控制方案。文中分析了無軸承異步電機由質量偏心引起不平衡振動的機理,推導了無軸承異步電機徑向位移環(huán)僅采用PID控制時轉子的運動學方程,從而說明了僅采用PID控制無法消除由動不平衡引起的周期性振動。在此基礎上,提出了一種基于前饋閉環(huán)補償?shù)臒o軸承異步電機動不平衡補償控制方案。最后,搭建了無軸承異步電機實驗平臺。實驗結果表明,所提出的補償方案很好地抑制了無軸承異步電機中的不平衡振動,取得了較好的動態(tài)懸浮控制效果。
[Abstract]:In order to solve the problem of unbalanced vibration caused by mass eccentricity of bearingless asynchronous motor, a novel control scheme based on feedforward control for unbalanced vibration of bearingless asynchronous motor is proposed. In this paper, the mechanism of unbalanced vibration caused by mass eccentricity of bearingless induction motor is analyzed. The kinematics equation of the rotor is derived when the radial displacement ring of bearingless asynchronous motor is controlled only by PID. It shows that the periodic vibration caused by dynamic imbalance can not be eliminated by using PID control alone. On this basis, a novel control scheme based on feedforward closed-loop compensation for bearingless asynchronous motor imbalance compensation is proposed. Finally, the experimental platform of bearingless asynchronous motor is built. The experimental results show that the proposed compensation scheme can effectively suppress the unbalanced vibration of bearingless asynchronous motor and achieve a better dynamic suspension control effect.
【作者單位】： 清華大學機械工程系;
【基金】：國家自然科學基金資助項目(51275257)
【分類號】：TM343

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相關期刊論文 前6條

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本文編號：2364624