考虑控制输入饱和限制的飞控系统设计

A Flight Control System Design withInput Saturation Limitation

针对H_∞技术在飞控系统设计中的控制输入饱和问题进行了研究。采用具有控制加权的混合灵敏度指标的H_∞设计方法,既保证了非结构性摄动的鲁棒性及抑制干扰的能力,又使所设计系统的控制输入信号满足实际作动器的物理限制。 以某静不稳定的战斗机为例,进行H_∞飞控系统设计和仿真。结果表明该方法是解决控制输入饱和问题的一种简便有效的方法。

Abstract In this paper, a discussion is devoted to control input saturation problem in H∞ control system design. By combing control weighting with mixed-sensitivity H, control , we not only guarantee robust stability and robust performance but keep control input signal within reasonable bounds. The H∞ control system has been designed and simulated for an unstable aircraft. It is demonstrated that this method is convenient and efficient for control input saturation problem.