The production and energy coupling system is used to mainly present energy flow, material flow, information flow, and their coupling interaction. Through the modeling and simulation of this system, the performance of ...The production and energy coupling system is used to mainly present energy flow, material flow, information flow, and their coupling interaction. Through the modeling and simulation of this system, the performance of energy flow can be analyzed and optimized in the process industry. In order to study this system, the component based hybrid Petri net methodology (CpnHPN) is proposed, synthesizing a number of extended Petri net methods and using the concept of energy place, material place, and information place. Through the interface place in CpnHPN, the component based encapsulation is established, which enables the production and energy coupling system to be built, analyzed, and optimized on the multi-level framework. Considering the block and brief simulation for hybrid system, the CpnHPN model is simulated with Simulink/Stateflow. To illustrate the use of the proposed methodology, the application of CpnHPN in the energy optimization of chlorine balance system is provided.展开更多
针对突发事件所处环境的动态特性,结合应急处置与事件演化的适应性,提出一种基于着色Petri网的情景演化应急预案流程建模方法.将着色Petri网引入应急预案的流程建模之中,设计了情景演化下应急处置流程的CPN(colored Petri net)模型;运...针对突发事件所处环境的动态特性,结合应急处置与事件演化的适应性,提出一种基于着色Petri网的情景演化应急预案流程建模方法.将着色Petri网引入应急预案的流程建模之中,设计了情景演化下应急处置流程的CPN(colored Petri net)模型;运用随机Petri网的思想将时间概念引入到应急预案的动态建模之中,通过同构的马尔可夫链进行业务流程的性能分析,并设计了库所繁忙概率、变迁利用率和变迁标记流速等一组性能指标;以特大火灾应急预案为例,在验证了模型的有效性的基础上,分析信息资源聚集瓶颈以及关键业务单元;结合分析结果,提出了应急预案流程模型的优化思路,在模型优化的过程中考虑情景要素的影响,实现应急资源的动态配置.展开更多
基金Shanghai Municipal Science & Technology Projects, China (No. 09DZ1203300, No. 10JC1415200)
文摘The production and energy coupling system is used to mainly present energy flow, material flow, information flow, and their coupling interaction. Through the modeling and simulation of this system, the performance of energy flow can be analyzed and optimized in the process industry. In order to study this system, the component based hybrid Petri net methodology (CpnHPN) is proposed, synthesizing a number of extended Petri net methods and using the concept of energy place, material place, and information place. Through the interface place in CpnHPN, the component based encapsulation is established, which enables the production and energy coupling system to be built, analyzed, and optimized on the multi-level framework. Considering the block and brief simulation for hybrid system, the CpnHPN model is simulated with Simulink/Stateflow. To illustrate the use of the proposed methodology, the application of CpnHPN in the energy optimization of chlorine balance system is provided.
文摘针对突发事件所处环境的动态特性,结合应急处置与事件演化的适应性,提出一种基于着色Petri网的情景演化应急预案流程建模方法.将着色Petri网引入应急预案的流程建模之中,设计了情景演化下应急处置流程的CPN(colored Petri net)模型;运用随机Petri网的思想将时间概念引入到应急预案的动态建模之中,通过同构的马尔可夫链进行业务流程的性能分析,并设计了库所繁忙概率、变迁利用率和变迁标记流速等一组性能指标;以特大火灾应急预案为例,在验证了模型的有效性的基础上,分析信息资源聚集瓶颈以及关键业务单元;结合分析结果,提出了应急预案流程模型的优化思路,在模型优化的过程中考虑情景要素的影响,实现应急资源的动态配置.
