满足二次稳定及干扰抑制性能指标的航空发动机H∞控制器设计

对于一类状态及输出矩阵存在结构参数摄动的对象，本文提出了闭环系统满足二次稳定性及干扰抑制性能的动态输出反馈控制器的理论设计方法，随后进行的仿真结果表明，所设计的控制器满足要求。

DESIGN OF AERO-ENGINE CONTROLLER WITH QUADRATIC STABILITY AND DISTURBANCE-RESTRAINING PERFORMANCE

A methodology is presented to design aeroengine output dynamic feedback controller.When the state and output matrices of a control system are perturbed,the controller designed in this way can lead the system to be quadratic stable.When disturbances are equal to zero,the system will be of quadratic disturbance-restraining performance when the perturbation of the matrices does not exist.The problem is simplified into a standard output dynamic feedback control problem on the basis of two theorems about quadratic stability and disturbance-restraining performance.From the two theorems,an augmented plant is derived.With the augmented plant,the controller is designed by using control theory.For an example,the flight envelope of the engine is divided into 12 subregions,and in each subregion the simulation under different flying conditions is given.It is shown that the dynamic performance of the control system meets the design target and the robustness of stability is good.