中国造纸2017，Vol.36Issue(8)：35-40,6.DOI:10.11980/j.issn.0254-508X.2017.08.007
改进遗传算法PID参数优化在流浆箱总压控制中的应用
Application of the PID Parameters Optimization Based on Improved Genetic Algorithm in Total Pressure Control of Headbox
摘要
Abstract
The total pressure control of the diluted water hydraulic headbox is directly related to the quality of the paper.The traditional PID method has low control precision for the object which is nonlinear,parameter time-varying and model uncertainty.Although the traditional genetic algorithm can optimize the PID parameters and improve the precision,it has a slow convergence speed and a long dynamic response time,which limit its application in the control of high speed paper machine.Aiming at these problems,an improved genetic algorithm,which optimize the operators of crossover and mutation,take the optimal tracking strategy and inprove convergence criterion to enhance theorenall optimization ability of genetic algorithm and speed up the convergence rate,was employed in this paper to tune the PID parameters in total pressure control of headbox of the paper-making machine.The simulation results showed that the proposed method had faster response speed and better robustness than the Z-N tuning and traditional genetic algorithm.关键词
流浆箱总压/PID参数优化/改进遗传算法Key words
total pressure of headbox/PID parameter optimization/improved genetic algorithm分类
轻工纺织引用本文复制引用
莫卫林,杨浩,熊智新,胡慕伊..改进遗传算法PID参数优化在流浆箱总压控制中的应用[J].中国造纸,2017,36(8):35-40,6.基金项目
国家林业局948项目“农林剩余物制机械浆节能和减量技术引进”(2014-4-3). （2014-4-3）
