大型柔性空间结构的变结构模型参考自适应控制

将变结构控制与模型参考自适应控制相结合,应用于大型柔性空间结构(LFSS)的主动控制中。以LFSS的结构动力学变量为系统状态,建立了变结构模型参考自适应(VSMRAC)耦合主动控制系统,研究了高阶参考模型和滑态参数矩阵的选择方法。以对称型两板轨道空间站为例,进行了VSMRAC主动控制系统的数字仿真,结果表明VSMRAC系统在鲁棒性、快速性和工程可实现性方面具有优越性。

THE VARIABLE STRUCTURE MODEL REFERENCE ADAPTIVE CONTROL FOR LARGE FLEXIBLE SPACE STRUCTRUE

The variable structure control and the model reference adaptive control are combined, and utilized to solve the large flexible space srtucture (LFSS)active control problem. Taking the structure dynamical variables of LFSS as system states, the variable structure model reference adaptive (VSMRAC) coupling active control system is established. The choice methols of the high-order reference model and the sliding mode parameter matrix are also studied here.Taking a symmetry two-panel space station as an example, the digital simulations of the VSMRAC active control system are made . The results show that the VSMRAC system possesses obvious advantages in the aspects of robustness, fastness engineering realization.