基于固定点迭代理论的飞翼飞机重构控制分配算法

Reconfiguration Control Allocation Algorithm for Flying Wing Aircraft Based on Fixed-point Iteration Theory

为了达到飞翼飞机重构控制分配算法的快速性要求,提出了一种基于固定点迭代理论的控制分配算法来实现飞行器控制律的重构。固定点迭代方法具有编程简单和计算速度快的优点,可以将故障情况下的飞翼飞机控制分配问题转化为固定点迭代方程的求解。该方程具有映内性且2范数可压缩,保证了解的唯一性和全局收敛性,因此可以从任意初始点快速地收敛到控制分配算法的最优解。通过在飞翼飞机执行器失效和卡死故障时的仿真验证,表明了所提算法的快速性和有效性。

A control allocation algorithm based on fixed-point iteration theory is presented to meet the real-time requirements for the flight control law reconfiguration of the flying wing aircraft.With the advantages of simple programming and fast calculating speed of fixed-point,the control allocation problem of flying wing aircraft under faults is converted to the solution of the fixed-point equation in the proposed algorithm.Since the equation is internal mapping and compressible at 2-norm,the uniqueness and global convergence of the solution are guaranteed.Thusly,the arbitrary initial point given can rapidly converge to the optimal solution of the control allocation problem.In the end,the effectiveness and the rapidity of the proposed method in this paper are verified through the simulation on a flying wing aircraft.