引用本文:周家忠,罗继亮.间歇式化工系统的Petri网优化调度与控制方法[J].控制理论与应用,2016,33(6):809~815.[点击复制]
ZHOU Jia-zhong,LUO Ji-liang.Optimal scheduling and control of batch chemical processes with Petri nets[J].Control Theory and Technology,2016,33(6):809~815.[点击复制]
间歇式化工系统的Petri网优化调度与控制方法
Optimal scheduling and control of batch chemical processes with Petri nets
摘要点击 3875  全文点击 3312  投稿时间:2015-08-17  修订日期:2016-05-17
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DOI编号  10.7641/CTA.2016.50689
  2016,33(6):809-815
中文关键词  Petri网  优化调度  控制  间歇式化工  可达图
英文关键词  Petri nets  optimal scheduling  control  batch chemical processes  the reachability tree
基金项目  国家自然科学基金项目(61573158), 福建省自然科学基金项目(2014J01241), 福建省高等学校新世纪优秀人才支持计划项目(11FJRC01), 福建省 高校杰出青年科研人才培育计划项目(JA10004)资助.
作者单位E-mail
周家忠 华侨大学 zhouyanjiazhong@163.com 
罗继亮* 华侨大学 jlluo@hqu.edu.cn 
中文摘要
      为了解决复杂间歇式化工系统的优化调度和控制问题, 提出了一种基于Petri网的优化调度与控制方法: 首 先, 根据加工工艺, 建立加工过程的赋时Petri网模型; 其次, 根据间歇式化工生产对象的拓扑结构, 在该赋时Petri网 模型中引入阀门系统的网结构, 从而获得系统的受控Petri网模型; 最后, 利用可达图来计算加工时间最短的控制策 略, 借助网结构信息, 得到了控制策略的阀门控制矩阵, 并用一个示例演示验证了本文方法.
英文摘要
      A method based on Petri nets is proposed to schedule and control a batch chemical system. First, an operational process is modeled as a P-timed Petri net according to its recipe. Second, a net structure is introduced in the P-timed Petri net to model a valve according to the topological structure of a batch chemical system. Consequently, a controlled Petri net model is obtained for a batch chemical system. Finally, via the reachability tree of this controlled Petri net, a method is proposed to calculate an optimal control strategy that makes the processing time shortest. Further, a control matrix for valves is calculated based on the structure of the controlled Petri net. The proposed methods are illustrated by a typical batch system.