基于根轨迹的直流伺服电动机PID控制器参数确定法  

Research on the PID parameters of the direct current servo motor based on root locus

作　　者：孙大卫[1] 张国良[1] 陈励华[1] 

机构地区：[1]第二炮兵工程学院自动控制系

出　　处：《实验技术与管理》2009年第4期38-41,109,共5页Experimental Technology and Management

基　　金：陕西省工业攻关项目(2008K04-19);二炮工程学院创新性探索研究

摘　　要：直流伺服电动机PID调速系统中，PID参数一般是通过参数对性能指标的影响关系采用试凑法确定的，具有很大的随意性和不确定性。该文根据直流伺服电动机PID调速系统的数学模型及性能指标，提出采用根轨迹确定PID参数法，使3个待定参数减少到1个，方便了PID参数确定。实践表明，该方法能满足实际系统的要求。In the PID speed regulating system of direct current servo motor, PID parameters are commonly determined through a try and-make up method by analyzing the relationship between PID parameters and system performance indications. But the parameters determined by this method are random and not very accurate. This paper brings up an idea of using root locus method to determine the PID parameters based on the math model and performance indications of the PID speed regulating system of direct current servo motor. Using this method, it is convenient to determine the PID parameters as the amount of parameters needed to be determined is reduced from three to one. It has been proved by practice that this method can satisfy the system＇s need.

关 键 词：直流伺服电动机 PID参数 根轨迹 

分 类 号：TM384.4[电气工程—电机]