带有控制受限的卫星编队飞行六自由度自适应协同控制

摘要

An adaptive synchronized control scheme with 6 degrees of freedom(DOF) and bounded input is proposed for a satellite formation flight(SFF) to attenuate its disturbances.For the 6 DOF synchronized dynamic model of SFF with parameter uncertainties, we first design an adaptive synchronized controller in which the external disturbance is temporary ignored.Considering the existence of disturbance, we improve the controller to make the closed-loop system attenuates the disturbance with L-two-gain.Numerical simulations have been performed on the platform of MATLAB/Simulink.Results indicate that the proposed controller estimates the parameter uncertainties adaptively and attenuates the disturbance with L-two-gain, while keeping a good performance in the transient process.%针对存在参数不确定性以及干扰的卫星编队飞行六自由度协同控制问题,提出了一种满足控制输入有界的自适应L2增益干扰抑制控制方法.该方法首先在不考虑干扰的条件下,针对卫星编队六自由度协同运动模型存在参数不确定性提出了一种自适应协同控制器;接着,考虑到系统存在干扰,进一步设计了具有L2增益干扰抑制能力且满足输入有界条件的自适应协同控制器.在MATLAB/Simulink平台上进行了仿真验证,结果表明,本文所提出的方法不仅能够对系统不确定性进行有效的自适应估计,还对干扰具备L2增益干扰抑制能力,同时具有良好的过渡品质.