航空发动机多变量鲁棒数字控制器的设计

A Design Method for Aeroengine Robust Multivariable Digit Controller

提出了一种设计发动机多变量鲁棒数字控制器的方法 ,即在划分的飞行包线内 ,控制结构采用前馈加反馈的方法 ,对结构不确定性和非结构不确定性进行 μ结构化处理 ,化为 H∞ 控制问题求解 ,这一方法在发动机非线形气动热力模型上进行了仿真验证。

A method is provided for designing robust multivariable digit controller of turbojet engine, in which the forwardback and feedback control structure is adopted in the divided flight envelope, the μ structurization is used to deal with the structured uncertainty and unstructured uncertainty, so that the problem for solving robust controller is transformed into standard H infinity control problem. The robust disturbance rejection and tracking performance is verified by simulation on a nonlinear model of the twin-spool turbojet engine aerothermodynamics.