飞行控制中的一种新型最优控制分配方法

针对新一代多操纵面飞行器的控制分配问题,提出了一种全新的最优控制分配算法--基底排序法.该方法将优化目标按照飞行控制的需求分成控制目标和任务目标两类,以基底的形式对舵面进行重新组合,并按照期望控制目标和任务优化指标进行排序,将冗余优化问题转化成排序问题加以解决.通过与几种常用控制分配方法的比较及多操纵面飞行控制系统的仿真验证,表明基底排序法能在准确实现期望目标的同时获得更好的任务目标分配结果,构成的控制系统能按期望要求准确、快速地跟踪指令信号,并可有效地抑制飞机各控制通道之间的影响.

New optimal control allocation method for flight control system

Control allocation method was investigated effectors. A new optimal control allocation method, bases optimal objectives were divided into control objective and with the background of aircraft with multiple control sequence control allocation, was put forward. The mission objective, and the control objective should be fulfilled firstly. The actuators were recombined, and the efficiency vectors of the actuators were treated as the bases of multidimensional space. All of the bases were sequenced according to the control object and the mission objective. Then the optimization of redundancy system was transformed to a sequencing problem. Comparison with other allocation method and control system simulation results show the bases sequence method can achieve the objective accurately and optimally, and can be computed in real-time. The response of the control system is rapid and accurate, and shows good decouple performance among axes.