Anti-vibration control system with frame vibration suppression method for sensorless IPMSM-driven applications

Permanent Magnet Synchronous Motor(PMSM) frame vibrations can represent significant noise problems. In this paper, a novel position sensorless anti-vibration system for PMSM-driven applications is proposed, which is called Specific Component Reduction Controller(SCRC). This controller is derived from repetitive controller with Fourier Transform (FT) (conventional one). Since the repetitive controller has a large gain at desired frequency and multiples, the conventional system may amplify high frequency noise. On the other hand, the novel method, Specific Component Reduction Controller (SCRC), is quite hard to amplify the high frequency noise, because it learns Fourier coefficients to generate a compensation signal. Experimental results show the effectiveness of the proposed IPMSM sensorless driven system with SCRC.