一种改进Fuzzy-PID技术的飞行器姿态控制系统设计  

An improved Fuzzy-PID technology of vehicle attitude control system design

作　　者：马晓爽[1] 石征锦[1] 

机构地区：[1]沈阳理工大学自动化与电气工程学院,辽宁沈阳110159

出　　处：《电子技术应用》2016年第10期21-23,28,共4页Application of Electronic Technique

基　　金：国家自然科学基金(51377110)

摘　　要：为了克服飞行器模型不精确以及在飞行过程中各种随机因素带来的干扰,提高飞行器姿态控制精度和稳定性能,提出了一种改进的Fuzzy-PID技术飞行器姿态控制系统,并进行数学仿真。根据姿态角大小决定采用Fuzzy控制或PID控制。同时,在Fuzzy控制器中引入自动修正因子n对模糊控制器的参数进行在线修改,增强参数在线自调整能力。实验仿真结果表明该方法能够迅速减小姿态角偏差,改善系统的动态响应特性,提高飞行器自适应能力。In order to overcome the inaccuracy of vehicle model and all kinds of random factors in the process of flight of interference, improve the accuracy of vehicle attitude control and stable performance, an improved Fuzzy- PID technology of vehicle attitude control system is proposed, and mathematical simulation is conducted. Decide to adopt PID control or Fuzzy control according to the size of attitude angle. At the same time, introduce the automatic tuning factor n in the Fuzzy controller to modify parameters of the Fuzzy controller on- line, enhance self- tuning capabilities of the parameter online. Experimental simulation results show that the proposed method can eliminate the attitude angle deviation rapidly, improve the static and dynamic characteristics of the system,improve adaptive ability of the vehicle.

关 键 词：模糊控制 PID控制 飞行器姿态 修正因子 

分 类 号：TP272[自动化与计算机技术—检测技术与自动化装置]