民用涡扇发动机多变量增广LQR控制器设计

针对民用涡扇发动机设计多变量控制器,提出将多变量增广LQR控制算法引入到民用涡扇发动机的方法。将发动机控制量作为增广的状态向量引入LQR算法设计,并根据控制系统回路的性能需求,设计期望动态响应曲线;期望动态响应与实际动态响应的差值范数作为优化目标用来调整、确定LQR控制算法的权阵取值;设计的控制器与民用涡扇发动机非线性模型仿真验证。结果表明,多变量增广LQR控制器满足民用涡扇发动机的控制需求。

Design of Multi-variable Augmented LQR Controller for Civil Aero-engine

This paper introduces a multivariable augmented LQR controller to a civil aero-engine control . The control variables are used as augmented states in this control algorithm .And an expected response curve is designed ,according to the engine performance requirements .The difference between expected dy-namic response and actual dynamic response is served as the optimization objective function .By optimi-zing this target function ,a pair of optimal LQR weights is found .Finally,simulation proves that the con-troller is able to control the civil aero-engine.