Yeonghan Chun

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In the resonance ratio control, which we proposed for vibration suppression and disturbance rejection in torsional system, the estimation speed of the disturbance observer should have been much faster than the resonance frequency of the controlled system. However, too fast disturbance observer sometimes causes implementation problem. In this paper, we give(More)
Abstract. In the resonance ratio control, the estimation speed of the disturbance observer should have been much faster than the resonance frequency of the controlled system. However, too fast disturbance observer causes implementation problem. In this paper, we give the optimal speed of the disturbance estimation and propose a novel technique, slow(More)
Vibration suppression and disturbance rejection control in torsional system is an important issue in the future motion control. Resonance ratio control is one of the most effective strategies, but the disturbance should be estimated much faster than the resonance frequency. Too fast disturbance observer causes implementation problem. To solve this problem,(More)
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