Hybrid Simulation of Electrical and Telecommunications Networks

Abstract

The modern power grid is strongly integrated with its communication network. While a power system primarily
consists of elements that are modeled by continuous equations, a communication system has discrete event dynamics. We model the
integrated operation of these two systems with a hybrid modeling and simulation technique. Systematically combining continuous
and discrete event system models is necessary for correctly simulating critical system behaviors. This paper discusses an approach
based on the Discrete Event System Specification (DEVS) that characterizes the interaction of the two systems formally to
preserve simulation correctness. We demonstrate the implementation of our integrated hybrid simulation technique with detailed
generator and network models in a wide-area cooperative automatic load-control scenario.