Sensorless Suppression Control for Frame Vibration of PMSM

Abstract

It is well known that frame vibration occurs in driving permanent magnet synchronous motors (PMSM). The authors have suggested a suppression method of the frame vibration by means of Fourier series and repetitive control. The method requires an acceleration sensor and a position sensor. However, the use of such a sensor is not desired from a point of view of cost of the system. Therefore, this paper proposes a sensorless suppression control method for the frame vibration. The effectiveness of the proposed method is illustrated through some experiments.