大型客机迎角保护控制器设计研究

Research on Design of Large Commercial Aircraft's High AOA Protection Controller

针对采用硬限制的方法设计的迎角保护控制器存在操纵空行程,难以保证满意的操纵控制效果,提出了一种免疫粒子群算法的迎角保护控制器设计方法。首先根据软保护的原理设计了一种迎角/C*指令前馈-无差控制的迎角保护控制器,系统性能指标选择合适的参考模型,并设定合理的目标函数,最后引入免疫粒子群优化算法进行了控制器参数的自动寻优。仿真结果表明,基于免疫粒子群算法所设计的迎角保护控制器,能有效地选取最优的控制器参数,使迎角和过载均响应在最大保护迎角和过载限制内,达到了良好的控制效果。

Due to the handle null travel occurs in AOA protection contioller based on hard limited method, it is difficult to ensure the satisfying control performance. A High AOA protection controller design method based on Im- mune-PSO algorithm was presented in this paper. Firstly, an AOA protection controller with AOA/C ＊ command feedforward - zero static error method was designed based on soft protection method. Then according to the system performance index, appropriate reference model was selected and suitable objective function was set. Finally, the Im- mune-PSO algorithm was introduced to optimize the controller parameters. The simulation results show that the con- troller based on Immune-PSO algorithm can search the optimal parameters efficiently, ensure the response of AOA and load factor in the Max protection AOA and load factor constrain, and acquire good control performances.