基于复数编码进化规划的参数非线性模糊PID控制器的设计  

Design of Parameter-nonlinear Fuzzy-PID Controller Based on Complex-valued Encoding Evolutionary-programming

作　　者：刘暾东[1] 陈得宝[2] 

机构地区：[1]厦门大学自动化系,福建厦门361005 [2]淮北煤炭师范学院物理系,安徽淮北235000

出　　处：《厦门大学学报（自然科学版）》2005年第6期770-773,共4页Journal of Xiamen University：Natural Science

基　　金：福建省青年科技人才创新项目(2004J020)资助

摘　　要：针对大时滞、非线性的复杂的工业过程,传统的固定参数PID控制器很难满足实际要求,为此,设计一种无量化因子的参数非线性模糊PID控制器.为优化初始的控制器参数,利用复数编码方法来设计进化规划,即个体的信息由染色体的模和幅角共同确定.这种双倍体形式的个体,相对于二进制编码方法而言,大大拓展了群体的信息量,加快了算法的收敛速度.仿真实验表明:该方法对非线性系统具有较快的收敛速度和良好的响应特性.A parameter-nonlinear fuzzy-PID controller without numerical factors,which aimed at time-delay and nonlinear complicated industrial process,is designed,because the PID controller of conventional fixed-parameters couldn＇t satisfied with practical demand. In order to optimize initial parameters of controller,the complex-valued encoding method is used to design the evolutionary-programming, namely, individual information are determined by the modules and angles of chromosomes. The form of double individual makes group information more rich and rapids convergent speed compared to decimal-valued encoding method. The simulation experiment shows that the method possesses rapid convergent speed and good response performance.

关 键 词：PID控制器 进化规划 复数编码 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]