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首页> 外文期刊>Industrial Electronics, IEEE Transactions on >Active Vibration Control of Magnetically Suspended Wheel Using Active Shaft Deflection
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Active Vibration Control of Magnetically Suspended Wheel Using Active Shaft Deflection

机译：利用主动轴偏转控制磁悬浮车轮的主动振动

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摘要

A novel method is proposed to actively attenuate the synchronous vibration of a magnetically suspended wheel (MSW) on the basis of shaft deflection. Considering the nonparallelism of the rotary axis and the inertial axis of the rotor, a precise dynamic model of the MSW is established as a linear model with synchronous disturbances. To reduce the synchronous vibration torques transferred to the base, the rotor shaft is actively deflected. A reference deflection angle is scheduled according to the synchronous disturbances, and a new tracking error dynamic model is established. Then, a composite control method is designed by combining a state feedback method and a disturbance observer. The stabilities of the disturbance observer and the closed-loop system are proven by Lyapunov's stability theorem. The parameters of the disturbance observer and the state feedback controller can be obtained by solving several linear matrix inequalities. The feasibility of vibration reduction due to the proposed method is analyzed. Finally, numerical simulations and experiments are performed. The results indicate that the proposed method significantly reduces the synchronous vibration torques of the MSW.
机译：提出了一种新颖的方法，可基于轴的偏转来主动减弱磁悬浮车轮（MSW）的同步振动。考虑到转子的旋转轴和惯性轴不平行，将MSW的精确动力学模型建立为具有同步干扰的线性模型。为了减少传递到基座的同步振动扭矩，转子轴会主动偏转。根据同步扰动对参考偏转角进行调度，建立了新的跟踪误差动态模型。然后，通过组合状态反馈方法和干扰观测器来设计一种复合控制方法。李雅普诺夫的稳定性定理证明了扰动观测器和闭环系统的稳定性。可以通过解决几个线性矩阵不等式来获得干扰观测器和状态反馈控制器的参数。分析了所提方法减振的可行性。最后，进行了数值模拟和实验。结果表明，该方法大大降低了城市固体垃圾的同步振动转矩。

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