机电工程技术2016，Vol.45Issue(z1)：80-83,4.DOI:10.3969/j.jssn.1009-9492.2016.z1.015
基于FFT的伺服系统谐振频率特性的在线辨识
Online Identification of Resonance Characteristic Based on FFT in Servo System
李爽 1张永辉1
作者信息
- 1. 广州数控设备有限公司，广州，510530
- 折叠
摘要
Abstract
AbstractThe mechanical vibrations caused by the elastic transmission device in AC servo system seriously affects the system stability and precision. The current commercial servo mainly uses the notch filter to suppress mechanical resonance. In order to configure the parameters of notch filter properly to get the desired effects, it’s of critical importance to obtain the resonance frequency characteristic of the servo system. This paper achieves the identification of resonant frequency by using methods of off-line fast frequency sweep and online FFT. The online identification algorithm is realized on DSP TMS320F28335, the experimental results show that this algorithm is fast, accurate and easy to implement , so it’s suitable for practical engineering applications.关键词
伺服系统/机械谐振/谐振特性辨识/FFTKey words
sservo system/mechanical resonance/resonance characteristic/FFT分类
信息技术与安全科学引用本文复制引用
李爽,张永辉..基于FFT的伺服系统谐振频率特性的在线辨识[J].机电工程技术,2016,45(z1):80-83,4.
