计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2009年
32期
240-243
,共4页
Elman%神经网络%分批训练%发酵过程%在线建模%在线预估
Elman%神經網絡%分批訓練%髮酵過程%在線建模%在線預估
Elman%신경망락%분비훈련%발효과정%재선건모%재선예고
Elman%neural network%batch training%fermentation process%online modeling%online estimating
依据发酵过程的机理和改进的Elman神经网络动态建模原理,提出了一个新的发酵过程建模分批训练算法.通过发酵过程仿真实验,与传统的BP建模算法比较,改进的Elman神经网络建模算法具有收敛速度快、泛化能力强等特点.此外,利用该算法编制的软件可以内嵌到发酵过程监控系统中,实现发酵过程在线建模与状态参量的在线预估.
依據髮酵過程的機理和改進的Elman神經網絡動態建模原理,提齣瞭一箇新的髮酵過程建模分批訓練算法.通過髮酵過程倣真實驗,與傳統的BP建模算法比較,改進的Elman神經網絡建模算法具有收斂速度快、汎化能力彊等特點.此外,利用該算法編製的軟件可以內嵌到髮酵過程鑑控繫統中,實現髮酵過程在線建模與狀態參量的在線預估.
의거발효과정적궤리화개진적Elman신경망락동태건모원리,제출료일개신적발효과정건모분비훈련산법.통과발효과정방진실험,여전통적BP건모산법비교,개진적Elman신경망락건모산법구유수렴속도쾌、범화능력강등특점.차외,이용해산법편제적연건가이내감도발효과정감공계통중,실현발효과정재선건모여상태삼량적재선예고.
According to the characteristics of fermentation process and the dynamic modeling theory of modified Elman neural network,a new batch training algorithm for fermentation process modeling is proposed.The training and testing of fermentation process simulation experiments show that modified Elman neural network modeling algorithm has specialties that convergence speed is faster and generalization is better,compared with traditional BP modeling algorithm.Furthermore,the software based on the modeling algorithm can be embedded into fermentation process control system,realizes fermentation process online modeling and state parameter online estimating.