摘要
提出了一种在线更新频率搜索区间的迭代算法,该算法能够准确获取伺服机械谐振系统的谐振频率、反谐振频率、谐振频率处的幅度增益和谐振频率处的谐振带宽。根据搜索得到的谐振频率特性对陷波滤波器进行设计和优化,可以改善系统性能。仿真和实验结果表明,提出的方法不仅抑制了系统的机械谐振,而且改善了系统的动态响应特性。
An iterative algorithm which updates the range of search frequency on line is presented. The algorithmcan precisely obtain the resonance frequency,anti-resonance frequency,amplitude gain of resonance frequency andband-width of resonance frequency. The designing and optimization of a notch filter based on the resonance frequencycharacteristic searched can improve the system performance. Simulation and experimental results verify that theproposed method not only suppress the mechanical vibration,but also improve the system dynamic response.
出处
《电气传动》
北大核心
2015年第2期39-44,80,共7页
Electric Drive
基金
国家科技重大专项(2012ZX04001-012)
关键词
伺服系统
谐振频率
频率响应
频率搜索
陷波滤波器
servo system
resonance frequency
frequency response
frequency search
notch filter
