引用本文:文生平,赵国平,蔡康雄.一种变论域模糊控制自适应算法[J].控制理论与应用,2009,26(3):265~268.[点击复制]
WEN Sheng-ping,ZHAO Guo-ping,CAI Kang-xiong.A fuzzy-control adaptive algorithm with variable domain[J].Control Theory and Technology,2009,26(3):265~268.[点击复制]
一种变论域模糊控制自适应算法
A fuzzy-control adaptive algorithm with variable domain
摘要点击 2408  全文点击 1872  投稿时间:2008-01-08  修订日期:2008-08-21
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DOI编号  10.7641/j.issn.1000-8152.2009.3.007
  2009,26(3):265-268
中文关键词  模糊控制  自适应算法  变论域  仿真
英文关键词  fuzzy control  adaptive algorithms  variable domain  simulation
基金项目  国家自然科学基金资助项目(10590351).
作者单位E-mail
文生平 华南理工大学 聚合物新型成型装备国家工程研究中心, 广东 广州 510640 shpwen@scut.edu.cn 
赵国平 华南理工大学 聚合物成型加工工程教育部重点实验室, 广东 广州 510640 Zhaogp1982@126.com 
蔡康雄 华南理工大学 聚合物成型加工工程教育部重点实验室, 广东 广州 510640 caikangxiong@163.com 
中文摘要
      针对受控系统非线性、时变性、复杂性和不确定性的特点, 文中采用一种基于模糊控制的变论域自适应控制算法, 将变论域引入模糊控制的隶属函数中, 设计了输入函数的自适应律, 并通过李雅普诺夫函数进行了稳定性分析. 仿真结果表明在有干扰的情况下, 算法能很好的跟踪系统输入, 使系统跟踪误差小且能够保证系统的稳定性.该算法结构简单, 具有良好的鲁棒性和动态性能, 同时克服了系统参数变化对稳定性造成的不利影响. 仿真实例表明了本算法的正确性和有效性.
英文摘要
      To deal with the nonlinearity, time-varying property, complexity and uncertainty in the controlled systems, a variable domain for membership functions is introduced by adopting an adaptive algorithm for changing the domain based on fuzzy control. The adaptive law is designed for input functions, and the stability is then analyzed through Lyapunov function. Simulation results also show that the system output can follow the input variation even in the case of external interferences. This algorithm has simple structure, high robustness and desired dynamic performance; ensuring the stability of the system with low tracking error and eliminating the negative effect on stability caused by system parameter variations. Finally, simulation examples illustrate the validity and feasibility of the results.