Object Oriented Approach to the Simulation of Shipboard Electric Power Systems

An object oriented approach for time domain simulations of shipboard electric power systems is proposed. It offers a flexible, user friendly alternative to conventional simulators, allowing design and operation analysis under a variety of operating conditions and topologies. The most general model of an electric power system consists of a set of nonlinear differential equations subject to algebraic constraints, which describes the evolution of the System, following certain contingencies. The algorithm presented adopts an object oriented approach by decomposing the system into its underlying components/devices, developed and maintained independent of one another. The differential equations are solved on the device level using a waveform representation of variables, which exploit both partitioning and parallel processing features. The ideas presented are tested on different test cases and conclusions are drawn.