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高超声速飞行器异步切换的鲁棒H∞控制

, PP. 177-182

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Abstract:

针对高超声速飞行器子系统与控制器异步切换问题,提出了一种鲁棒H∞控制策略.构造了依赖于控制器切换信号的Lyapunov函数,可以有效抵消由异步切换带来的控制器设计困难,结合平均驻留时间方法和Lyapunov函数方法,分析了系统的全局一致渐近稳定性和H∞性能指标,设计了异步切换的鲁棒H∞控制器.仿真结果表明,该方法实现高超声速飞行器在异步切换过程中对指令的精确跟踪,控制量在异步切换时刻无跳跃现象,同时对扰动具有较强的抑制作用.

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