基于智能结构的空间大型可展开天线H_∞振动控制

H_∞ Vibration Control Based on Intelligent Structure for Large-space Deployable Antennas

将智能结构应用到大型可展开天线的“在轨”振动控制中,使得结构紧凑,重量轻,控制效果好,并将H∞控制理论应用于控制系统的设计,采用平衡降阶处理方法设计控制器。算例仿真结果表明:所设计的大型可展开天线“在轨”振动控制智能结构系统具有良好的鲁棒性能,并能有效地抑制外界的干扰。这为大型可展开天线的在轨振动控制系统的设计提供了依据。

The frame of the controller is compact and light with the application of intelligent structure to the space deployable antenna.H_∞ control theory is applied to design the control system,and a H_∞ controller is designed with balance model reduction method.The simulation results prove that the control system has a good robust performance,and can resist the influence of noise around.The results give a basis for the design of the space deployable antenna control system.