一种采用干扰观测器控制的交流伺服调速系统设计  

AC servo speed control system based on disturbance observer

作　　者：郑丽楠[1] 陈世明[2] ZHENG Linan;CHEN Shiming(College of Urban Rail Transit,Jilin Railway Technology College,Jilin 132000,Jilin,China;School of Electrical and Electronic Engineering,East China Jiaotong University,Nanchang 330000,Jiangxi,China)

机构地区：[1]吉林铁道职业技术学院城市轨道交通学院,吉林吉林132000 [2]华东交通大学电气与电子工程学院,江西南昌330000

出　　处：《中国工程机械学报》2020年第3期258-263,共6页Chinese Journal of Construction Machinery

基　　金：国家自然科学基金资助项目(60804066,61034006);江西省教育厅科技资助项目(GJJ09508,GJJ11115,GJJ12286)。

摘　　要：为提高伺服调速系统的控制准确性,在P控制器的基础上设计了滤波PI干扰观测器(DO-FPI),利用该干扰观测器控制伺服调速系统对输出转速进行准确的调控。首先,对伺服调速设备的控制过程进行分析,获取控制器的结构模型,明确控制回路进入稳态的条件。然后,通过设计滤波器和控制器,利用积分绝对误差(IAE)模型求取控制器参数,对输入干扰进行补偿。最后,利用P控制器设计了滤波PI干扰观测器,构造输入干扰量的传递函数,并求取该函数的参数,以实现对干扰量的控制,进而达到对输出转速的调节。借助Matlab/Simulink软件对所提方法的控制性能进行了验证,实验结果显示,所提方法对输出转速的控制过程较为准确、快速以及平稳,能够适应阶跃、正弦等多种激励信号的调速控制,说明所提方法具有较好的调速控制效果。In order to improve the control accuracy of the servo speed control system,a filter PI disturbance observer is designed based on the P controller.The disturbance observer is used to control the servo speed control system to control the output speed accurately.Firstly,the control process of the servo speed control equipment is analyzed,the structure model of the controller is obtained,and the conditions for the control loop to enter the steady state are defined.Then,by designing filters and controllers,the controller parameters are obtained by using the absolute error integral model to compensate the input interference.Finally,the filter PI disturbance observer is designed by using P controller,and the transfer function of input disturbance is constructed,and the parameters of the function are obtained to control the disturbance and then to adjust the output speed.The control performance of the proposed method is verified with the help of Matlab/Simulink software.The experimental results show that the proposed method is accurate,fast and stable in the control process of output speed,and can adapt to the speed control of step,sine and other excitation signals.It shows that the proposed method has good speed control effect.

关 键 词：伺服调速系统 转速控制 P控制器 滤波器 干扰观测器 积分绝对误差 

分 类 号：U463[机械工程—车辆工程]