摘要
本文提出了一类新的基于生态位模型的Type-2模糊控制系统,将含参数的生态位贴近度函数作为模糊规则的后件,从而构成了Type-2 Takagi-Sugeno(T-S)模糊控制模型。主要采用Lyapunov方法设计控制器,利用梯度下降法优化参数,得到参数的自适应律。建立的模糊T-S模型具有生物个体的自适应性,可以确保整个系统的稳定性,通过prey-predator生态模型验证了该类控制器的有效性。
A new Type-2 fuzzy control system based on niche of ecosystem is proposed. Regarding the approach degree function of niche with unknown parameters as the consequent of fuzzy rules,the T-S fuzzy control model on niche is constructed. The controller is designed by using the method of the Lyapunov and the consequent parameters are determined by using a gradient descent method. Finally the adaptive low of consequent parameters is obtained. The fuzzy system is based on niche embodied biological individual＇s adaptability,which can make the closed-loop system stable. Simulation of two- dimensional prey-predator system model is carried out to verify the effectiveness.
作者
欧阳仁蓉
OUYANG Ren-rong(Department of Public Course, Suzhou institute of Construction and Communication, Suzhou, Jiangsu 215004, China)
出处
《安庆师范学院学报（自然科学版）》
2016年第4期57-61,共5页
Journal of Anqing Teachers College(Natural Science Edition)
基金
江苏联合职业技术学院2016年度课题立项(B/2016/131045)
