An Improved Fuzzy Predictive Control Algorithm and Its Application to an Industrial CSTR Process  

作　　者：陆妹 金成波 邵惠鹤 

机构地区：[1]Institute of Automation, Shanghai Jiao Tong University, Shanghai 200240, China [2]Department of Fieldbus, Shanghai Automation Instrument Co., Ltd., Shanghai 200233, China [3]Department of Product Design, Shanghai GaoKe Valve Manufactory Co., Ltd., Shanghai 200092, China

出　　处：《Chinese Journal of Chemical Engineering》2009年第1期100-107,共8页中国化学工程学报（英文版）

基　　金：Supported by the National High Technology Research and Development Program of China(2004AA412050)

摘　　要：A finite horizon predictive control algorithm, which applies a saturated feedback control law as its local control law, is presented for nonlinear systems with time-delay subject to input constraints. In the algorithm, N free control moves, a saturated local control law and the terminal weighting matrices are solved by a minimization problem based on linear matrix inequality （LMI） constraints online. Compared with the algorithm with a nonsaturated local law, the presented algorithm improves the performances of the closed-loop systems such as feasibility and optimality. This model predictive control （MPC） algorithm is applied to an industrial continuous stirred tank reactor （CSTR） with explicit input constraint. The simulation results demonstrate that the presented algorithm is effective.一根有限地平线预兆的控制算法，作为它的本地控制法律使用一条浸透的反馈控制法律，与易于的时间延期为非线性的系统被介绍输入限制。在算法， N 免费控制行动，一条浸透的本地控制法律和终端， weighting 矩阵被一个最小化问题基于线性矩阵不平等(LMI ) 解决限制联机。与有一条非浸透的本地法律的算法相比，介绍算法改进象可行性和 optimality 那样的靠近环的系统的表演。这个模型预兆的控制(MPC ) 算法与明确的输入被用于一个工业连续搅动的坦克反应堆(CSTR ) 限制。模拟结果证明介绍算法是有效的。

关 键 词：predictive control fuzzy system TIME-DELAY saturated control law 

分 类 号：TP18[自动化与计算机技术—控制理论与控制工程]