大型柔性空间结构的分散自适应模型跟随控制

Decentralized Adaptive Model-Following Control of Large Flexible Space Structure

本文讨论了一类具有控制关联作用的大型柔性空间结构的主动式分散自适应抑振控制问题．文中首先讨论了大型柔性空间结构中存在控制关联作用的分散化模型，在此基础上引入了控制关联解耦变换，并采用分散自适应模型跟随控制方法对其进行了主动抑振控制．仿真结果表明本文提出的控制方案是有效的。

Benchouban et al in 1992 [5] proposed decentralized minimal controllers for large-scale system. His idca is useful for solving a pressing problem that remains, to the author's best knowledge, unsolved in LFSS (Large Flexible Space Structure). This problem is that, in existing decentralized adaptive model following control schemes, the strong coupling action betwcen modal and control produces severe vibration, In this paper, the authors present their research results on bow to apply the basic idea in Ref. [5] to suppress such severe vibration. Suppression of severe vibration is made possible essentially in the following way. Elimination of control connection can be done through diagonalization of equivalent control action matrix. This diagonalization is made possible through introducing into our mathematical analysis linear transformation which can fully exploit the special characteristics of control action matrix in finite clement mathematical model.Simulation results show that the author's algorithm is simple and possesses the good qualities of easy -to-realize paralleiing control and rapid convergence.