动态逆与模糊控制方法在飞控系统中的应用  

On Making Nonlinear Dynamic Inversion Control Effective with Nonlinear Input Known only Approximately

作　　者：杨向忠[1] 章卫国[1] 段富海[1] 欧阳晋[1] 

机构地区：[1]西北工业大学

出　　处：《西北工业大学学报》1998年第4期527-530,共4页Journal of Northwestern Polytechnical University

基　　金：西北工业大学211重点工程CNS/ATM项目资助

摘　　要：首先用动态逆方法，对多变量系统进行解耦；然后将带优化修正函数的模糊控制规则自调整方法与动态逆方法相结合，构成了一种动态解耦模糊集成控制方案，并用该方案对AFTI／F－16飞机的直接升力控制系统进行了设计与仿真。仿真结果表明，集成控制方案能有效地抑制系统内部参数扰动对系统输出产生的影响，取得了良好的控制效果。Fuzzy control is easily adapted to parameter changes in a non -linear system. Combining fuzzy control with non - linear dynamic inversion control (NDIC) can make the latter effective. Like others, we first used NDIC to decouple a MIMO non - linear system. Different from others, in order to obtain high performanee fuzzy controllers, we derived a set of fuzzy control rules with an optimized correction function for use in self - regulation. These rules and optimized correetion function were obtained through optimizing a correction function and proportional and integral factors. Then we constructed a dynamic decoupling fuzzy integration control scheme. Our method is equally effective when linear input such as that of the direct lift control system of AFTI/F - 16 is known only approximately. Good simulation results as shown in Figs. 2 and 3 were obtained for the direct lift control system of AFTI/F-16 with our method.

关 键 词：模糊控制 动态逆 解耦 飞行控制系统 

分 类 号：V249.122[航空宇航科学与技术—飞行器设计] TP273[自动化与计算机技术—检测技术与自动化装置]