光电稳定滑模变结构控制系统的设计与仿真  

Design and Simulation of Variable Structure Control System Based on Sliding Mode for Photoelectric Stabilized Platform

作　　者：洪华杰[1,2] 贠平平[1] 王学宁[3] 赵创社[1] 

机构地区：[1]西安应用光学研究所,陕西西安710065 [2]国防科技大学三院,湖南长沙410073 [3]第二炮兵装备研究院四所,北京100085

出　　处：《计算机仿真》2010年第7期130-133,221,共5页Computer Simulation

基　　金：2007博士后基金(20070420835)

摘　　要：稳定控制是光电稳瞄产品的核心技术之一。经典控制理论超调与快速性之间存在难以调和的矛盾,系统难以得到理想的动态性能。为解决上述问题,首先建立了稳定控制系统数学模型,采用非线性微分信号获取方法,设计了一滑模变结构控制器,计算出滑动模态存在的条件进行了仿真。仿真表明,所采用的微分信号方法性能优良,所设计的控制系统能够同时实现系统无超调和快速响应的目标,并为产品的稳定性控制开发了一种新的控制策略。Stability control is one of the core technologies of the photoelectric stabilized products.It is difficult for classical control theory to deal with the conflict between the overshot and rapidity and to get satisfied dynamic performances. This paper set up the system mathematical model,referred a nonlinear method to acquire the rate signal,designed a variable structure controller based on sliding mode and solved out the existence conditions of sliding mode. Simulations show that the acquired rate signal is good,and the control system realizes zero overshot and rapidity at the same time.The research provides a new stabilized control method for congeneric products.

关 键 词：光电稳定平台 滑模 变结构 跟踪微分器 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]