双管道原油运输系统的着色赋时可控Petri网建模

摘要

With the nature of hybrid system for an oil refinery , the modeling of oil refining system is one of the most difficult problems in operating a refinery process .For the convenience of analysis of such a sys-tem, a controlled-colored-timed Petri net ( CCTPN) model is proposed for modeling crude oil operations . The CCTPN is extended to model dual-pipeline crude oil transportation system with high/low fusion point oil.With a variety of practical production constraints , especially the high fusion point oil transportation constraints , the properties of the system are analyzed .Then , with a modular modeling approach and by de-composing the system into several sub-problems, a Petri net model is developed such that the system is modeled in a hierarchical way , making the model compact .With this model , the system behavior can be effectively analyzed .Moreover , it can be used as an assistant tool for verifying the logistics information and short-term scheduling .%针对双管道原油运输（高低凝固点原油）系统，利用着色赋时可控Petri网进行建模，分析多个关键约束，特别是高凝固点原油运输管道的约束。利用模块化建模方法，分层建模，结构严谨，描述系统行为完整，可作为观察系统物流信息和短期生产调度制定的辅助工具。