空间站的分散模型参考变结构自适应控制

采用分散模型参考变结构自适应控制方法设计空间站的控制器。将描述空间站数字模型转化为相互关联的子系统模型，在建立了系统参考模型的基础上，设计了可以保证空间站在受到强烈动态干扰时仍能稳定运行的分散控制系统。所设计的控制律形式简单，提高了控制算法的实时性。数字仿真表明了该控制方法的有效性。

Control Law for Decentralized Variable Structure Model Reference Adaptive Controller for Chinese Space Station

The development of Chinese astronautical industry has reached the point where goodcontrol law for decentralized variable structure model reference adaptive controller for spacestaton, which is a large flexible space structure,is needed. We start from the theoretical papers by Kurana et al [2], Xu et al[3], and Yurkovich et al[4]. Using the decentralized variable structure control approach of Refs. [2], [3]and [4], we deduce such a control law forcontroller. The mathematical model of space station is transformed into four interconnectedsubsystems. Each of the four subsystems has a local reference model. The decentralized control law for the four subsystems is given in eq. (15). Symbols in eq. (15)are explained in eq. (16). The decentralized control law, expressed by eq. (15), can guarantee the stability andsafe operation of space station under high dynamical disturbances and when system parameters vary withim broad ranges. The decentralied control law, eq. (15), is simple for reaitime implementation, and its effectiveness is demonstrated by numerical simulations.