基于改进PSO的发酵过程同步串联混合建模  

Simultaneous Series Hybrid Modeling for Fermentation Process Based on Improved Particle Swarm Optimization

作　　者：杨强大[1] 张卫军[1] 牛大鹏[2] 

机构地区：[1]东北大学材料与冶金学院,沈阳110819 [2]东北大学信息科学与工程学院,沈阳110819

出　　处：《自动化学报》2015年第3期620-630,共11页Acta Automatica Sinica

基　　金：高等学校博士学科点专项科研基金(20120042120014);国家自然科学基金(61304121;51476024);中央高校基本科研业务费专项资金(N130404024)资助~~

摘　　要：准确可靠的过程模型是实现发酵过程优化的基础和前提.对于反应机理复杂的发酵过程,串联混合建模是一种相对有效的建模方法,但现有方法需要利用插值所得的数据进行中间变量黑箱模型的构建,较大程度地影响了所建混合模型的泛化性能.为此,提出一种可将黑箱模型构建问题转化为动态模型参数辨识问题的同步串联混合建模方法,从而避免了现有方法需利用插值数据来构建黑箱模型的不足;通过引入多精英学习策略和惯性权重自适应调整策略,构造了一种改进的粒子群优化(Particle swarm optimization,PSO)算法—自适应多精英学习PSO(Adaptive multi-elite learning PSO,AMLPSO)算法,并采用该算法求取黑箱模型的参数;借鉴均匀设计思想确定黑箱模型的结构.利用诺西肽分批发酵过程实际生产数据进行实验研究,结果验证了所提方法的有效性.An accurate and reliable model is the basis and premise for achieving fermentation process optimization. Series hybrid modeling is a relatively more effective method for fermentation process with complex reaction mechanisms, but it needs data obtained from interpolation to develop the black-box models of intermediate variables, which considerably influences the generalization performance of the final hybrid model. Therefore, in this paper, we present a simultaneous series hybrid modeling method, which can transform the black-box model development problem into a dynamic model parameter identification problem, and thus overcome the shortage that existing methods need interpolation data for the development of black-box models. By introducing multi-elite learning and adaptive inertia weight adjustment strategies,an improved particle swarm optimization（PSO） called adaptive multi-elite learning PSO（AMLPSO） is constructed to determine the parameters of black-box models. Uniform design method is used to select the structure of black-box models.Experimental study is carried out based on the practical production data from nosiheptide batch fermentation process,and the results show the effectiveness of the proposed method.

关 键 词：发酵过程 同步串联混合建模 粒子群优化 算法改进 均匀设计 

分 类 号：TP18[自动化与计算机技术—控制理论与控制工程]