面向原油库存管理过程的Petri网建模

石油化工工业属于典型的连续型生产工业,但在连续生产过程中又包含有离散变量, 具有明显的混杂动态系统特征.对于这样的混杂动态系统,混合Petri网是一种有效的建模方法.文章在已有的混合Petri网结构基础上,在离散变迁激发规则中加入了逻辑控制条件,并对原油库存管理过程这一兼有连续时间特性和离散事件特性的混合动态系统进行建模,并通过建模实例验证了其有效性和灵活性,从而为解决原油库存问题提供了具有参考价值的方法.

Petri Nets Modeling of Oil Inventory Management

The continuous type processes involved in Petro- Chemical Industry, combined with the discrete type variable, possessed a distinct hybrid systems character. For such systems, the hybrid Petri nets model is suitable. On the basis of the existing structure of HPN, logical conditions are added now in discrete transition firing rules of the HPN. The hybrid interpreted Petri Nets is applied to model crude oil inventory management which is a hybrid system with continuous -time and discrete event feature in this paper, indicating an efficient and flexible behaviour, provide an effective way for solving the problems in crude oil inventory management.