Hybrid high-level nets
Ralf Wieting · 1996
This paper presents a new methodology for modeling and simulation of hybrid systems which is called Hybrid High-level Nets (HYNETs). The new methodology integrates three established modeling approaches into one language. High-level Petri Nets represent the basic discrete framework, differential algebraic equations (DAEs) are used to describe continuous systems behavior and object-oriented concepts improve the expressiveness and compactness of models. The paper explains basic ideas of the language and illustrates its usefulness with a small example. 1 INTRODUCTION Modeling and simulation of hybrid systems, i. e. systems consisting of a mixture of discrete and continuous components, is a research area that becomes more and more interesting. This is due to the fact that most systems of real world applications are not purely discrete nor purely continuous and often both parts influence each other. Consider for instance the small example in Figure 1: A level of liquid in a tank changes co...