基于CMAC-PID并行控制的阵风减缓控制系统  

Gust Load Alleviation Control System Based on the CMAC-PID Combined Control

作　　者：聂瑞[1] 章卫国[1] 李广文[1] 刘小雄[1] 

机构地区：[1]西北工业大学自动化学院,西安710072

出　　处：《计算机仿真》2010年第7期56-60,共5页Computer Simulation

基　　金：航空科学基金(20080553018)

摘　　要：针对高速飞机飞行在大气干扰下,产生强烈阵风干扰,飞机方程存在未建模扰动,传统PID难以保证控制稳定效果,提出了基于粒子群优化策略的CMAC-PID并行控制的直接升力控制方法,并将其应用于飞机阵风减缓控制系统的设计中。采用乘坐品质舒适指数作为适应度函数,通过粒子群优化,得到PID控制器参数为神经网络训练提高导师信号。在系统运行中,PID控制器输出逐渐趋近为零,CMAC网络控制输出逐步取代PID控制输出,成为控制器主要控制信号。仿真结果表明,提出的方法比传统PID控制器能够更加有效的起到阵风减缓效果增加稳定性。Due to the exists of the un-modeled disturbance of the plane equation under the atmospheric disturbance and that traditional PID controller is difficult to ensure the control performance,a direct lift control algorithm of CMAC - PID control based on particle swarm optimization（PSO） strategy is proposed.Riding quality comfortable index is utilized as the fitness function to search the global optimal values of PID controller by the PSO algorithm to train the neural network weight value.In the operation of the system,the output of the PID controller became zero gradually.Moreover,the output of the CMAC approximates the signal of the total controller and becomes the main controller signal instead of PID controller.The simulation results show that the CMAC - PID controller obtain the better effort of alleviating the gust load.

关 键 词：粒子群优化 阵风减缓控制系统 小脑模型 控制 乘坐品质舒适指数 

分 类 号：V249[航空宇航科学与技术—飞行器设计]