飞行器地面半实物仿真转台控制系统设计  

Design of Control System for Aircraft Ground Semi Physical Simulation Turntable

作　　者：任彦[1] 张晓飞[1] 刘慧[1] 

机构地区：[1]内蒙古科技大学信息工程学院,内蒙古自治区包头市014010

出　　处：《计算机仿真》2016年第7期111-115,共5页Computer Simulation

基　　金：中国国家自然基金(61563041);内蒙古自治区自然科学基金项目(2015MS0603)

摘　　要：由于飞行器对仿真转台的控制精度的要求高,但转台控制系统是带摩擦的非线性系统,提高飞行仿真转台控制精度较困难。为解决上述问题,采用一种建立在名义模型基础上的全鲁棒滑模控制策略。在实际系统的内回路中设计模糊干扰观测器,利用模糊干扰观测器的非线性逼近特性,实时估计和补偿非线性等效干扰。依据名义模型与实际对象输出的误差设计具有积分切换增益的全局滑模控制器。仿真结果表明了改进方法能实现控制系统的较高控制精度,适于高精度飞行仿真转台系统的实时控制。Higher demands on the control accuracy of the simulation table are raised. However, how to overcome the influence of parameter variation and nonlinear friction on the control accuracy of flight simulator is a difficult prob- lem. Taking a robust shding mode control strategy on the basis of a nominal model, in the actual system circuit, a fuzzy disturbance observer （FDO） was designed using nonlinear approximation property of FDO to estimate and com- pensate nonlinear equivalent interference. A global sliding mode controller with integral switch gain was designed un- der output error between nominal model. The results of the simulation show that the proposed method is perfect and suitable for control of high-precision servo system.

关 键 词：模糊干扰观测器 滑模控制器 飞行仿真转台 

分 类 号：TP302[自动化与计算机技术—计算机系统结构]