SUMMARYIt is well known that frame vibration occurs in driving permanent magnet synchronous motors (PMSM). The authors have suggested a method for suppression of 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 desirable from the point of view of system cost. Therefore, this paper proposes a method of sensorless suppression control of frame vibration. The effectiveness of the proposed method is illustrated by experiments.
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