点击次数：

论文类型：期刊论文

发表时间：2014-02-01

发表刊物：WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY

收录刊物：SCIE、EI、Scopus

卷号：30

期号：2

页面范围：767-775

ISSN号：0959-3993

关键字：Continuous cultures; Nonlinear system; Robust control; mu-Synthesis

摘要：In this paper, robust control problem using mu-synthesis in microbial continuous culture is studied. The dissimilation process of glycerol to 1,3-propanediol cannot avoid the disturbances caused by uncertain factors. Based on the biodynamical model, a control system with the initial glycerol concentration as input control is proposed to simplify the controller design. mu-synthesis method is applied to find a feedback controller to assure both of robust stability and robust performance of the closed-loop system simultaneously. To solve the corresponding structured singular value optimization problem, a converged result is obtained through D-K iteration method. The mu-synthesis system is also compared with the corresponding system. The simulation results indicate that the mu-controller might be more feasible for the continuous bioprocess controlling.