典型文献
Dynamic optimization of 1,3-propanediol fermentation process:A switched dynamical system approach
文献摘要：
This paper considers a dynamic optimization problem(DOP)of 1,3-propanediol fermentation process(1,3-PFP).Our main contributions are as follows.Firstly,the DOP of 1,3-PFP is modeled as an optimal control problem of switched dynamical systems.Unlike the existing switched dynamical system optimal control problem,the state-dependent switching method is applied to design the switching rule.Then,in order to obtain the numerical solution,by introducing a discrete-valued function and using a relaxation technique,this problem is transformed into a nonlinear parameter optimization problem(NPOP).Although the gradient-based algorithm is very efficient for solving NPOPs,the existing algorithm is always trapped in a local minimum for such problems with multiple local minima.Next,in order to overcome this challenge,a gradient-based random search algorithm(GRSA)is proposed based on an improved gradient-based algorithm(IGA)and a novel random search algorithm(NRSA),which cannot usually be trapped in a local minimum.The convergence results are also established,and show that the GRSA is globally convergent.Finally,a DOP of 1,3-PFP is provided to illustrate the effectiveness of the GRSA proposed by this paper.
文献关键词：
中图分类号：
作者姓名：
Xiang Wu;Yuzhou Hou;Kanjian Zhang;Ming Cheng
作者机构：
School of Mathematical Sciences,Guizhou Normal University,Guiyang 550001,China;School of Electrical Engineering,Southeast University,Nanjing 210096,China;School of Life Sciences,Guizhou Normal University,Guiyang 550001,China;School of Automation,Southeast University,Nanjing 210096,China;Key Laboratory of Measurement and Control ofCSE,Ministry of Education,Southeast University,Nanjing 210096,China
文献出处：
引用格式：
[1]Xiang Wu;Yuzhou Hou;Kanjian Zhang;Ming Cheng-.Dynamic optimization of 1,3-propanediol fermentation process:A switched dynamical system approach)[J].中国化学工程学报（英文版）,2022(04):192-204
A类：
NPOP,NPOPs,GRSA,NRSA
B类：
Dynamic,optimization,propanediol,fermentation,process,switched,dynamical,approach,This,paper,considers,DOP,PFP,Our,main,contributions,are,follows,Firstly,modeled,optimal,control,systems,Unlike,existing,state,dependent,switching,method,applied,design,rule,Then,order,obtain,numerical,solution,by,introducing,discrete,valued,function,using,relaxation,technique,this,transformed,into,nonlinear,parameter,Although,gradient,algorithm,very,efficient,solving,always,trapped,local,minimum,such,problems,multiple,minima,Next,overcome,challenge,random,search,proposed,improved,IGA,novel,which,cannot,usually,be,convergence,results,also,established,show,that,globally,convergent,Finally,provided,illustrate,effectiveness
AB值：
0.517493
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