多操纵面飞机交叉耦合鲁棒控制分配策略

针对多操纵面飞机气动效能的交叉耦合不确定性, 基于混合优化提出一种鲁棒控制分配策略.将交叉耦合效应描述为控制效能结构不确定性, 建立分配 误差最小的单目标鲁棒最小二乘控制分配模型, 给出等价线性矩阵不等式构型.进一步, 考虑操纵面偏转能量约束, 建立鲁棒混合优化控制分配模型, 以避免单目标 优化下操纵面易饱和的问题.仿真结果表明, 所提出的方法可容忍交叉耦合效应不确定性, 实现操纵面协调控制分配, 具有较好的鲁棒性.

Robust control allocation with interactions for multiple effectors aircraft

With regard to the interactions uncertainty on control efficiencies of the multiple effectors aircraft, a robust control allocation strategy is proposed based on the hybrid optimum theory.The nonlinear interactive efficiencies is described as the structured uncertainty, the robust least-squares control allocation model is established based on the optimal object of minimum allocating worst-case, and an equal configuration using the linear matrix inequality is proved.Taking the restriction of deflection energy into consideration, the robust mixed-optimization control allocation model is established to avoid the saturation of the control surface.The simulation shows that, the proposed strategy can acquire concerted allocation solution with the interactions uncertainty tolerated, which has a preferably robustness.