摘要
首先利用提升 ( lifting)技术 ,构造出多采样率数字控制系统的线性时不变状态空间模型 .在此基础上 ,讨论具有分散控制结构的多采样率数字控制系统在输出反馈下的极点配置问题 .由于分散控制的结构和因果约束的要求 ,给输出反馈矩阵加上了结构上的约束 .为此 ,通过预先固定反馈增益阵中的某些元素的方法 ,使得控制器满足相应的结构约束 .
Based on the lifting technique, this paper first proposes a linear time invariant state space description of the multirate sampling digital control systems. Then the problem of pole assignment of decentralized multirate sampled data digital control system is discussed. The constraints due to the decentralized control structure and the casual condition have posed structure constraints on the output feedback gain matrix. By prefix appropriate elements in the output feedback gain matrix, these two constraints can be satisfied. Finally, the output feedback pole assignment controller can be obtained by solving a set of linear equations.
出处
《湖南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2002年第S1期67-71,共5页
Journal of Hunan University:Natural Sciences
关键词
多采样率控制系统
极点配置
分散控制
multirate sampled data control system
pole assignment
decentralized control
