Novel Parameter Identification Method for Basis Weight Control Loop of Papermaking Process  

作　　者：Yunzhu Shen Wei Tang Yungang Liu 

机构地区：[1]School of Electrical and Control Engineering,Shaanxi University of Science and Technology,Xi'an,Shaanxi Province,710021,China [2]School of Control Science and Engineering,Shandong University,Ji'nan,Shandong Province,250061,China

出　　处：《Paper And Biomaterials》2023年第1期35-49,共15页造纸与生物质材料（英文）

基　　金：support received from the National Natural Science Foundation of China(Grant No.62073206);Technical Innovation Guidance Project of Shaanxi Province(Grant No.2020CGHJ-007).

摘　　要：The basis weight control loop of the papermaking process is a non-linear system with time-delay and time-varying.It is impractical to identify a model that can restore the model of real papermaking process.Determining a more accurate identification model is very important for designing the controller of the control system and maintaining the stable operation of the papermaking process.In this study,a strange nonchaotic particle swarm optimization(SNPSO)algorithm is proposed to identify the models of real papermaking processes,and this identification ability is significantly enhanced compared with particle swarm optimization(PSO).First,random particles are initialized by strange nonchaotic sequences to obtain high-quality solutions.Furthermore,the weight of linear attenuation is replaced by strange nonchaotic sequence and the time-varying acceleration coefficients and a mutation rule with strange nonchaotic characteristics are utilized in SNPSO.The above strategies effectively improve the global and local search ability of particles and the ability to escape from local optimization.To illustrate the effectiveness of SNPSO,step response data are used to identify the models of real industrial processes.Compared with classical PSO,PSO with timevarying acceleration coefficients(PSO-TVAC)and modified particle swarm optimization(MPSO),the simulation results demonstrate that SNPSO has stronger identification ability,faster convergence speed,and better robustness.

关 键 词：basis weight control system PAPERMAKING system identification particle swarm optimization strange nonchaotic sequence 

分 类 号：TS75[轻工技术与工程—制浆造纸工程]