基于平滑切换策略的焦炉集气管压力变结构控制  

Variable-structure control of gas collector pressure based on smooth switching strategy for coke ovens

作　　者：周国雄[1,2] 雷琪[2] 

机构地区：[1]中南林业科技大学计算机与信息工程学院,长沙410004 [2]中南大学信息科学与工程学院,长沙410083

出　　处：《高技术通讯》2012年第3期315-319,共5页Chinese High Technology Letters

基　　金：863计划（2006AA042172）和中南林业科技大学人才引进项目（104-0219）资助.

摘　　要：针对基于专家切换策略的焦炉集气管压力变结构控制方法具有动态切换特性差的缺点和集气管压力在不同工况切换时容易导致压力出现振荡和超调的现象，提出了一种基于平滑切换策略的集气管压力变结构控制方法。该方法根据集气管分管压力在不同工况下具有的动态特性，选用基于满意聚类的T—S模糊模型建立相应的动态子模型，并采用相应的模糊子控制器进行控制。为保证子模型切换过程状态轨迹的平滑性，采用监督级控制器动态切换子模型及相应的子控制器。仿真和实际效果说明了该算法的有效性。The shortcomings of the variable-structure control for the gas collector pressure in coke ovens based on the ex- pert switching strategy, such as the poor dynamic switching property, the pressure instability caused by condition switching, are analyzed technologically, and based on this, a new variable-structure control method based on the smooth switching strategy for gas collector pressure is proposed. The method is described as below： According to the difference of industrial condition, the corresponding dynamic sub-model is built by using the Takagi-Sugeno fuzzy model based on the fuzzy clustering satisfied method, and the corresponding fuzzy controller is chosen to con- trol the pressure. In order to ensure the track smoothness of the sub-model, the sub-model and the corresponding sub-controller are dynamically switched by using a supervisory-level controller. The simulation and practical appli- cation results demonstrate the validity of the method.

关 键 词：平滑切换 T—S模糊模型 变结构控制 集气管压力 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]