大射电望远镜FAST的控制与GPS动态检测

Control and GPS Real-time Determination for Large Radio Telescope FAST

本文讨论了大型球面射电望远镜舱体系统的分布式控制方案及其实现形式 ,提出了悬索长度的 P- PID双模控制策略 ;运用稳定边界整定法与单形替换优化法相结合得到了位置环 PID参数的整定结果 ;依据 GPS载波相位差分精密动态定位原理 ,分析了馈源舱位姿 GPS动态检测系统的组成 ,并给出了在动态检测时需要使用的馈源舱位姿转换矩阵和求解方程 ,与 GPS动态定位系统相结合就可以完成对馈源舱位姿的跟踪检测 。

This paper presents the distributed control system structure of cabin and its realization. Double mode control strategy of P PID in cable system is proposed too. Optimal results of PID are obtained by means of combination of stable limits tuning method and simplex search method. Then authors discuss the constitution of GPS real time determination system for the location and attitude of the cabin. The transfer matrixes of cabin's location and attitude are deduced, and the equations to solve the location and attitude of the cabin are gained . With the help of GPS real time determination system, cabin system will be a closed loop control system.