大型柔性空间结构的极点配置变结构主动控制

THE VARIABLE STRUCTURE ACTIVE CONTROL FOR LARGE FLEXIBLE SPACE STRUCTURES USING POLE ASSIGNMENT TECHNIQUE

本文针对大型柔性空间结构(LFSS)的主动控制问题,提出耦合主动控制的方法。该方法不要求对象模型解耦,而以结构动力学变量作为系统状态,通过敏感器和执行机构的协调配置,对各动力学变量进行直接测量和控制。基于该方法,本文设计了LFSS的多变量极点配置变结构主动控制系统,并针对对称型两板空间站进行了仿真,取得了满意的结果。

The paper puts forward a method of coupling active control for the large flexible space structures (LFSS). Using the coupling models of plants, the method takes the structure dynamical variables as the system states and directly measures and controls these states through the allocation of sensors and actuators. According to the method, we synthesize an active control system, using variable structure control methods [1] [2] and multivariable pole assignment technique [3]. At last, taking a two-panel space station [4] as a plant, the paper gives out simulation results.