摘要
对一类基于T-S模糊模型描述的连续随机系统,研究了不仅使整个闭环模糊系统全局渐近稳定,而且每个闭环模糊子系统的稳态状态方差满足给定上界性能指标约束的状态反馈控制器设计问题。首先,基于协方差配置理论,配置了一个公共的正定协方差矩阵,导出使整个闭环模糊系统全局渐近稳定的充分条件;进而利用广义逆理论,给出满足性能指标约束的状态反馈控制器的参数化表达形式。
The continuous fuzzy controllers for the continuous TakagiSugeno(TS) fuzzy stochastic system are designed based on the generalized inverse matrix theory,and the parametrization expression of the controllers which satisfy the performance index constraint is given. A common positive definite covariance matrix is collocated according to the covariance collocation theory,and the sufficient condition for the global asymptotic stability of the overall closedloop fuzzy system is derived. The stable state covariance of all subsystems of the continuous perturbed TS fuzzy stochastic system satisfies the common upper bound.
出处
《合肥工业大学学报(自然科学版)》
CAS
CSCD
2003年第2期306-310,共5页
Journal of Hefei University of Technology:Natural Science