二次型稳定H∞鲁棒飞行控制

Quadratically stable H∞ robust controller for the integrated flight/propulsion control system

建立飞行 /推力数学模型时 ,总存在着因不确定性而导致建模误差。实际中 ,有一类不确定性不改变对象模型的动态阶数 ,并可用参数摄动来描述。本文将二次型稳定性概念应用于飞行 /推力控制系统 ,用 H∞控制理论设计的控制系统能很好地解决这类参数不确定的鲁棒控制问题 ,进行了数字仿真 ,结果表明 H∞飞行控制系统有较好的鲁棒性 。

Being built up, the mathematics model of the plant is always influenced by the parameters uncertainties. Whatever control theory used for the integrated flight/propulsion control, it is necessary to be sure that the flight/propulsion closed loop control system has the strong robust stability. This paper applies the H∞ theory to the flight/propulsion control system. The following questions can be covered in this paper:the quadratically stability concept mentioned in the flight/propulsion control; H∞ controller for flight/propulsion control designed; digitally simulation of the flight/propulsion control closed loop system; the satisfied conclusion to prove the system meets the robust requirements of the flight/propulsion control system.