实时修正函数模糊控制器组合优化设计  

Optimal design of fuzzy controller with real-time modifying function

作　　者：张筱磊[1] 李士勇[1] 

机构地区：[1]哈尔滨工业大学航天学院,黑龙江哈尔滨150001

出　　处：《哈尔滨工业大学学报》2003年第1期8-12,共5页Journal of Harbin Institute of Technology

基　　金：国家自然科学基金资助项目 ( 5 0 13 80 10 )

摘　　要：为了进一步优化模糊控制器的控制参数 ,以便实时地调整控制规则 ,提高其自适应能力 ,提出了一种具有 5个控制参数的自调节模糊控制器 .通过模拟退火算法离线组合优化 5个参数 ,并引进一个具有惯性特性的实时自调节修正函数α(e,γ) ,根据动态过程的误差在线调整模糊控制器的规则 ,从而显著地提高其控制性能 .通过对一阶、二阶及非线性对象的大量仿真结果对比表明 ,本控制器不仅可以实时调整控制规则 ,而且具有响应快、超调小 (或无超调 ) 。The fuzzy control analytic expression method can regulate the control rules and easily implement through changing controller parameters. The current research focus on how to get the optimal controller parameters and the real-time regulating control rules and to improve system adaptability. Based on the achievements of fuzzy control analytic expression method, a kind of fuzzy controller which has five parameters is investigated and presented. The combinatorial optimization of the fuzzy controllers parameters are implemented by using simulated annealing algorithm, and the real-time and self-regulating modifying function α(e,γ) which has inertial characteristic is introduced to modify the control rules in real time, so the performance index of fuzzy control system is improved remarkably. The simulation results to first-order, second-order and nonlinear plants show that the suggested fuzzy controller not only can regulate the control rules in real time but also has good performance index in many aspects such as rapid response, small overshoot or non overshoot and high steady precision.

关 键 词：实时修正函数 设计 模糊控制器 规则自调整 组合优化 控制参数 控制规则 

分 类 号：TP273.4[自动化与计算机技术—检测技术与自动化装置] TM571.6[自动化与计算机技术—控制科学与工程]