【摘要】 讨论了T-S模糊系统输出直接反馈控制器的稳定性分析和设计方法。为了减小稳定性分析的保守性和难度,充分利用模糊规则前件变量模糊隶属度函数的结构信息,对前件变量采用标准模糊分划的T-S模糊系统输出直接反馈控制器进行了研究,获得了稳定性条件。在稳定性分析的基础上,采用平行分布补偿法(PDC)和线性矩阵不等式方法(LMI),研究了输出直接反馈控制器的设计。通过对一个非线性质量块-弹簧-阻尼器系统输出反馈控制器的设计和计算机仿真,验证了方法的有效性。更多还原

【Abstract】 Stability analysis and design methods of output direct feedback controllers for Takagi-Sugeno(T-S) fuzzy systems are presented.In order to use the structural information in the rule base to decrease the conservatism of the stability analysis,the standard fuzzy partition(SFP) is employed to the promise variables of T-S fuzzy systems.A stability condition is obtained by using the Lyapunov direct method.The parallel distributed compensation(PDC) and linear matrix inequality(LMI) are employed to design the output direct feedback controllers for T-S fuzzy models.The output direct feedback controller design and simulation results of a nonlinear mass-spring-damper mechanical system show that these methods are effective.更多还原