区间Ⅱ型变论域自适应模糊逻辑控制器  

Interval type-2 variable universe adaptive fuzzy logic controller

作　　者：赵国亮[1,2] 张永立[3] 李洪兴[1] 

机构地区：[1]大连理工大学电子信息与电气工程学部,辽宁大连116024 [2]黑龙江科技学院理学院,黑龙江哈尔滨150027 [3]天津职业技术师范大学自动化与电气工程学院,天津300222

出　　处：《大连理工大学学报》2012年第6期914-920,共7页Journal of Dalian University of Technology

基　　金：国家自然科学基金资助项目(60774049;60834004);"九七三"国家重点基础研究发展计划资助项目(2009CB320602)

摘　　要：在变论域自适应模糊控制方法的基础上,结合Ⅱ型模糊集较强的鲁棒性和处理不确定性问题的能力,设计了一种区间Ⅱ型变论域自适应模糊逻辑控制器.为了使控制器保持在最优状态,采用粒子群优化算法来优化隶属度函数;然后由Lyapunov方法证明了区间Ⅱ型变论域自适应模糊逻辑控制器的稳定性.对Duffing系统和1维6卷混沌系统的仿真表明,区间Ⅱ型变论域自适应模糊逻辑控制器可以很好地跟踪参考信号,较之变论域模糊逻辑控制器,其可以有效地防止抖震且控制量较小.The type-2 fuzzy sets are more robust,and have ability of tackling the uncertainty problems.Based on the merits of type-2 fuzzy sets and variable universe adaptive fuzzy control method,an interval type-2 variable universe adaptive fuzzy logic controller is proposed.The parameters of the interval type-2 membership functions are optimized by particle swarm optimization algorithm to get the most effective interval type-2 variable universe adaptive fuzzy logic controller.Lyapunov method is adopted to verify the stability of the proposed fuzzy logic controller.Finally,the tests of the proposed controller on the Duffing system and 1-dimension 6-scroll chaotic system are performed.Simulation results show that the interval type-2 variable universe adaptive fuzzy logic controller can track the trajectory well and reduce the chattering efficiently,at the same time can keep the control input small compared with variable universe fuzzy logic controller.

关 键 词：自适应模糊控制 变论域 区间Ⅱ型模糊逻辑系统 

分 类 号：TP273.2[自动化与计算机技术—检测技术与自动化装置]