A novel design for vibration suppression for lightly-damped servo control systems

A practical embedded system identification approach and a frequency-domain vibration suppression control technique are developed in this study for the flexible beam driven by a permanent-magnet synchronous motor (PMSM). The embedded system identification technique efficiently identifies the resonant frequency in velocity and position loops, separately, and the notch filter can be designed and to be integrated into to DSP-based PMSM driver. Experimental results show that the vibration is significantly reduced to 45% in the settling time.