一种近似解耦方法在飞控系统中的应用

应用输出及部分状态反馈、极点配置和奇异摄动法对某高性能飞机的多变量飞行控制系统进行了设计。基于Ｐｏｒｔｅｒ的研究,对其不足之处做了改进。设计中考虑了１／ｇ因子的项,并推导了相应的数学表达式。借助这些表达式可调整控制器的参数值以求减少系统中的耦合以及配置闭环系统的零、极点使其满足设计要求。基本实现了快速和解耦控制。

THE APPLICATION OF AN APPROXIMATE DECOUPLING METHOD TO THE THE FLIGHT CONTROL SYSTEMS

In this paper,output feedback and part of state feedback, pole assignment and singu-lar perturbation method are used to design the multivariable flight control systems for a high per-fonnance aircraft. Based on Porter's research,the method is improved to overcome its shortcom-ings.The item containing 1/g factor is considered.The corresponding analysis expressions,which can be used to adjust controller's parameters in order to reduce the coupiing action in sys-tem and to assign the zeroes and poles of the closed system to meet the design requirements,are also given. The design method provides very fast and essentially decoupled control.