二慣性系に対する定常発振制御に基づく共振周波数推定手法の実験的検証

抄録

In general-purpose servo motors, notch filters are used to suppress resonance in the equipment. When using a notch filter, it is necessary to know the resonance frequency of the system to be controlled. we have presented a method for estimating of resonance frequency based on steady-state oscillation control that keeps the amplitude of the motor speed constant at a target value by self-exciting the resonance. In this paper, the proposed method was experimentally verified by changing the cutoff frequency of LPF in the control system. As a result, it was found that the stability condition of the control system depends on the cutoff frequency , which is consistent with the previously reported result for steady-state oscillation control.