Mechanical Resonance Suppression of Servo System Based on Resonant Frequency Online Identification

Lixiang Sun; Xiuwen Shan; Yi Zhang; Hanpei Wei

doi:10.6911/WSRJ.202604_12(4).0002

Authors

Lixiang Sun
Xiuwen Shan
Yi Zhang
Hanpei Wei

DOI:

https://doi.org/10.6911/WSRJ.202604_12(4).0002

Keywords:

Mechanical resonance; Fast Fourier transform; Online identification; Notch filter.

Abstract

This paper analyzes the mechanical resonance of permanent magnet AC servo systems and identifies the main factors that affect resonance. Further use fast Fourier transform for frequency online identification of the resonant system, and finally use a notch filter to filter the resonant frequency of the system. The impact of the notch filter on the system was analyzed and the parameters of the filter were determined, ultimately achieving the digitization of the notch filter. By analyzing the mechanical resonance system and identifying the resonance frequency online, the mechanical resonance of the permanent magnet AC servo system itself has been effectively suppressed. The experimental results have verified the effectiveness of the vibration suppression control algorithm.

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