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基于一种人工免疫算法的PID参数优化
引用本文:陈少白,谭光兴,毛宗源.基于一种人工免疫算法的PID参数优化[J].武汉科技大学学报(自然科学版),2006,29(3):313-315.
作者姓名:陈少白  谭光兴  毛宗源
作者单位:1. 武汉科技大学理学院,湖北,武汉,430081;华南理工大学自动化科学与工程学院,广东,广州,510640
2. 华南理工大学自动化科学与工程学院,广东,广州,510640
基金项目:广东省深圳市科技局资助项目
摘    要:PID控制器存在着跟踪设定值与抑制扰动之间、鲁棒性与控制性之间未能很好解决的矛盾,对此.采用抗原和抗体混合编码方法计算抗体浓度,用免疫遗传算法思想对PID参数进行优化,提出一种基于混合编码的PID参数优化算法。仿真结果表明,这种优化算法加快了收敛到最优参数的速度,有效提高了系统的全局稳定性,增强了PID控制器的鲁棒性。

关 键 词:人工免疫  混合抗体  PID控制器  参数优化
文章编号:1672-3090(2006)03-0313-03
收稿时间:2005-12-21
修稿时间:2005年12月21

Optimizing Parameters of PID Controller Based on an Immune Networks Model
CHEN Shao-bai,TAN Guang-xing,MAO Zong-yuan.Optimizing Parameters of PID Controller Based on an Immune Networks Model[J].Journal of Wuhan University of Science and Technology(Natural Science Edition),2006,29(3):313-315.
Authors:CHEN Shao-bai  TAN Guang-xing  MAO Zong-yuan
Institution:1. Wuhan University of Science and Technology, Wuhan 430081, China; 2. South China University of Technology, Guangzhou 510640, China
Abstract:Considering that it is difficult to solve conflicts between track and restrain disturbance, robustness and control performance, a PID parameter optimization algorithm, which uses the idea of immune genetic algorithm, is proposed in this paper. This new algorithm uses a mix coding of antibodies and antigen to calculate concentration of mix-antibody, and it can converge to the optimum parameters efficiently according to the given controlled system. The simulation results point to the advantages of small overshoot and short setting-time in controlling close loop and pure time-delay system. This method improves the convergent speed, the global stability and robustness of the PID controller significantly.
Keywords:artificial immune  mix-antibody  PID controller  parameter optimization
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