摘要
讨论了控制对象和控制器同时存在稳定反馈结构不确定性的鲁棒稳定性和性能敏感性问题 ,给出了摄动系统鲁棒稳定的充分条件 ,得到了敏感函数矩阵和闭环传递函数矩阵H∞ 的摄动上界 .这里控制器并不要求是真稳定的 。
In this paper, the problem of the stability robustness and the performance sensitivity is investigated for systems under stable feedback structured uncertainties both on the plant G and the feedback controller K simultaneously. Sufficient conditions for the robust stability and the upper bounds for the sensitivity function matrix and the closed loop transfer function matrix are given in terms of H ∞ norms. The controller K does not need to be proper and stable,therefore the results obtained here is of general sense.
出处
《自动化学报》
EI
CSCD
北大核心
2000年第3期360-364,共5页
Acta Automatica Sinica
基金
国家自然科学基金!( No.6 9874 0 2 7)
关键词
结构不确定性系统
敏感性分析
鲁棒控制
Structured uncertainty, stable feedback uncertainty, sensitivity function matrix, perturbed bounds.
