Parallel EMT simulation of electrical networks on multiple processors

Abstract

This paper presents a technique, implemented in an EMT type software, utilizing multiple cores of a processor, to simulate a single interconnected electrical power system. In this technique, large networks are split into smaller ‘subsystems’ by using the natural propagation delay introduced by transmission lines. This method does not introduce time step delays between subsystem solutions and hence yields computational results perfectly in agreement with the traditional non-split simulations. Proprietary and confidentiality issues arising from different vendors collaborating on large scale power system studies can also be resolved using the proposed technique.