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借鉴混杂系统思想，提出一种方法用以设计含离散性质的过程控制系统。在总结混杂系统概念及其应用背景的基础上，分别利用自动机和Ｐｅｔｒｉ网两类工具建立常用的混杂系统框架结构，讨论了控制算法；为应用该方法解决这类过程控制系统的设计问题，总结了混杂系统方法原理，并结合两个实例给出应用说明。应用设计表明，该方法与常规控制相比，有机地集成了离散事件控制，丰富了过程控制策略。
Referring to the idea of hybrid systems, a method is proposed to design a process control system with discrete properties. On the basis of summarizing the concept of hybrid system and its application background, the commonly used hybrid system frame structure is established by using automaton and Petri net respectively. The control algorithm is discussed. To solve the design problem of this kind of process control system, Summarized the principle of hybrid system method, and combined with two examples given application description. The application design shows that compared with the conventional control, this method organically integrates discrete event control and enriches the process control strategy.