基于改进自抗扰控制的电动伺服系统机械谐振抑制方法  

Research on mechanical resonance suppression of electric servo system based on an improved ADRC

作　　者：莫昱[1] 唐旭东[1] MO Yu;TANG Xudong(Beijing Institute of Mechanical Equipment,Beijing 100854,China)

机构地区：[1]北京机械设备研究所,北京100854

出　　处：《系统工程与电子技术》2024年第1期309-317,共9页Systems Engineering and Electronics

摘　　要：导弹发射和飞行过程中,电动伺服系统受发动机点火、气动负载、舵面冲击等载荷作用下,加大结构的磨损,导致系统结构间隙的存在,极大地降低了传动刚度,并加剧谐振带来的危害。本文提出改进自抗扰控制器(active disturbance rejection controller,ADRC)以改善电动伺服系统的位置跟踪特性。首先分析了电动伺服系统的机械谐振机理,设计了线性自抗扰控制器,利用改进粒子群优化(particle swarm optimization,PSO)算法进行控制参数寻优,并进行了仿真分析验证了该方法的可行性,最后电动伺服系统试验结果验证了改进ADRC的有效性,提高电动伺服系统的动态和稳态性能。During missile launch and flight,the electric servo system is subjected to loads such as engine ignition,aerodynamic loods,and rudder impact.Increase of structural wear leads to the structural gaps in the system.It greatly reduces the transmission stiffness and aggravates the harm caused by resonance.This paper proposes an improved active disturbance rejection controller(ADRC)to improve the tracking performance of the electric servo system.First,the mechanism of mechanical resonance for the electric servo system is analyzed.Then,the linear ADRC is described and the method to select parameters is given by improved particle swarm optimization(PSO)algorithm.Furthermore,the feasibility of this controller is demonstrated through a simulation analysis.Finally,the experimental results of electric servo system indicate that the improved ADRC can improve stability and dynamic performance.

关 键 词：电动伺服系统 谐振 自抗扰控制器 改进粒子群优化算法 

分 类 号：V249.1[航空宇航科学与技术—飞行器设计]