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针对一类变体飞行器控制问题,提出一种平滑切换线性变参数(LPV)鲁棒控制器设计方法.建立变体飞行器切换LPV模型,设计平滑切换控制器,其中偶数子系统控制器由相邻两个子系统控制器线性插值得到.给出保证切换LPV系统指数稳定且具有一定鲁棒性能的充分条件,由于考虑了调参变量的渐变特性,所得切换律没有平均驻留时间的限制.仿真结果表明,所提出方法使得飞行器系统既具有良好的稳定性和鲁棒性,又能实现平滑切换.
Aiming at the problem of a class of variant aircraft control, a design method of smooth switching linear variable parameter (LPV) robust controller is proposed. LPV model of variant aircraft is established and smooth switching controller is designed. The even subsystem controller consists of adjacent The two subsystems controllers are linearly interpolated.The sufficient conditions for exponential stability and robust performance of switching LPV systems are given, and the resulting switching law has no restriction on the average dwell time due to the gradual change of the reference variables. It shows that the proposed method makes the aircraft system not only have good stability and robustness, but also achieve smooth switching.