摘要
模糊控制器对于复杂不确定系统的控制具有很强的适应性,将模糊逻辑和PID控制器结合起来用于解决一类大型挠性结构空间桁架这一复杂系统的振动控制问题;并结合结构振动常用的独立模态空间控制方法,克服大型空间桁架不能建立精确的数学模型所带来的弊端,有效地抑制了由于模态溢出或耦合产生的差拍现象。仿真结果表明这一模糊PID控制器对于高阶、非线性的大型空间桁架振动控制是有效的。
Prportional-Integral-Derivative （PID） controllers are perhaps the most widely used controllers in modern industries because of its reliability, simplicity and validity. Fuzzy logical controllers are good at higher-order, time-delayed and nonlinear systems. Combining fuzzy logic controllers with PID controllers, a kind of controllers is designed in this paper, to resolve the vibration control of a complex system made of large flexible structure-space frame. The simulation result shows that fuzzy PID controllers are more effective in suitable structural vibration control by suppressing overflow especially for those systems with vague mathematical models.
出处
《中国空间科学技术》
EI
CSCD
北大核心
2005年第3期59-65,共7页
Chinese Space Science and Technology
基金
国防预研基金(413200501)资助项目
