伺服系统中一种新的带阻滤波器的设计  

A new design of notch filter in servo systems

作　　者：朱其新[1] 刘红俐[2] Nikolay Krys 

机构地区：[1]华东交通大学电气与电子工程学院,南昌330013 [2]华东交通大学基础科学学院,南昌330013 [3]ASM Assembly Automation Ltd.

出　　处：《微计算机信息》2008年第19期57-58,56,共3页Control & Automation

基　　金：国家自然科学基金资助项目(60474076)

摘　　要：机械共振是伺服系统中普遍存在的一个问题,机械共振主要由伺服系统中功率传输元件的柔性所引起。伺服系统中标准的控制律是按照刚性耦合的负载来设计的,然而,在实际的伺服系统中柔性普遍存在,这种柔性会减小系统的稳定裕度、降低系统的性能甚至引起系统不稳定。带阻滤波器是处理机械共振的最常用的方法,本文提出了一种伺服系统中带阻滤波器设计的新方法,该方法较老方法具有明显的优点。Mechanical resonance is a pervasive problem in servo systems. Most problems of resonance are caused by the compliance of power transmission components. Standard servo control laws are designed for rigidly coupled loads. However, in practical machines some compliance is always present; this compliance often reduces stability margins, reduces system performance and even make the servo system unstable. Notch filter is the most prevalent method to deal with the mechanical resonance in servo system. A new design of notch filter in servo system is presented in this paper. This design has more distinct merits than the old design of notch filter.

关 键 词：共振 伺服系统 带阻滤波器 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]