具有完整性的大型柔性空间结构分散自适应控制  

Decentralized Adaptive Control for LFSS with Good Integrity

作　　者：杜树新[1] 陈新海[1] 

机构地区：[1]西北工业大学

出　　处：《西北工业大学学报》1995年第2期287-291,共5页Journal of Northwestern Polytechnical University

基　　金：国家自然科学基金

摘　　要：研究了大型柔性空间结构主动振动分散自适应控制，将离散化系统自由度ｎ大于执行机构／传感器组ｍ的情形作为ｎ＝ｍ的控制完整性来考虑，即ｎ＞ｍ时的控制问题可认为是ｎ—ｍ个部件失效时的控制问题．对二板空间站的仿真表明ｎ＞ｍ时，控制系统全局稳定，从而证实了本文给出的分散自适应算法具有完整性．This paper presents the results of oriented basic research supDortcd by NNSFC (National Natural Science Foundation of China, Prokct No. 69284001).There are numerous actuators and sensors in large flexible space structure (LFSS). It is essential to have the control system remain stable or continue functioning despite failure in some actuators and sensors. This essential quality of such a control system is called integrity by the authors. The authors have not seen integrity being required of decentralized adaptive control system in the open literature.The key to dcccntralizcd control for LFSS is the establishment of a suitable mathematical model.In establishing this model, the authors develop further the idea of lumped--mass method well known in the theory of mechanical vibrations [11. The author's model is described by eqs. (7) and (8). If control laws (12)～ (15) arc adopted for the model described by eqs. (7) and (8), then the decentralized adaptive control system for LFSS possesses satisfactory integrity.

关 键 词：分散自适应控制 柔性空间结构 自适应控制 

分 类 号：TP273.2[自动化与计算机技术—检测技术与自动化装置] TP13[自动化与计算机技术—控制科学与工程]