智能天线结构模糊自适应变形控制实验研究  

Experimental Research on Deformation Control for Intelligent Antenna Structure based on Self Tuning Fuzzy Control

作　　者：于登云[1] 夏人伟[1] 赵国伟[1] 赵豫[1] 

机构地区：[1]北京航空航天大学宇航学院,北京100083

出　　处：《宇航学报》2006年第2期245-249,267,共6页Journal of Astronautics

基　　金：863航天领域项目资助

摘　　要：基于dSPACE半物理仿真系统和所研制的压电作动器,设计并构建了智能天线结构实验平台,进行了结构变形控制实验研究。实验中采用常规PID作为基本控制方法,并在此基础上设计了一种模糊自适应PID控制器,将两种方法对应的不同控制效果进行了对比。结果表明:在所给的实验条件下,基于压电材料可实现对智能天线结构变形的控制,作动器控制变形量最大可达166μm;两种控制方法均可对结构变形进行控制,模糊自适应方法的绝对位置控制精度达到±0.5μm;应用模糊自适应PID控制方法对结构进行变形控制,较之常规PID控制方法能够降低系统响应的超调量,缩短稳定时间,提高控制精度,得到更好的控制过程。With dSPACE simulation system and developed piezoelectric ceramic actuators, an intelligent antenna structure was designed and founded as a testbed and the experiments concerned of deformation control were developed in this work. The traditional PID method was adopted in the experiments and a self tuning fuzzy PID controller was also established. The different control effects correspond to each method were compared in this paper. The results show that under given conditions, the piezoelectric structures are valid in the structures＇ deformation control. The maximum displacement control capacity of the actuator is 166μm. The two methods both can achieve the deformation control and the absolute position accuracy of the self tuning fuzzy control can reach± 0.5 μm. Compared to the routine PID control method, the newly developed self tuning fuzzy PID controller can depress the overshoot, shorten the stable time, and improve the control accuracy to acquire a better control process.

关 键 词：智能结构 天线 模糊控制 自适应控制系统 

分 类 号：TN821.91[电子电信—信息与通信工程]