ePowCoRe: A Novel Generic Representation of Power Grids Enabling Open-Source Model Conversion Modules

With the rapid changes of modern power grids, modeling and simulation of these systems become increasingly important. For these tasks, various specialized proprietary and open tools exist. Since every tool has its strengths and weaknesses, it is often beneficial to analyze the same system with multiple different tools. However, as most of these tools come with their own distinct data format, this requires a conversion of models. In the present paper, we introduce new model conversion methods based on a novel generic representation for power system models. This representation is based on a graph data structure comprising flexible power system component models. We evaluate the implementation of these new methods by converting an IEEE 39 bus system model from DIgSILENT PowerFactory to Matpower, Simscape Electrical, and RSCAD FX using the newly developed methods and existing methods. The resulting models are compared with the original PowerFactory model using power flow, RMS and EMT simulations. The source code of the presented modeling format and methods is released to the community for transparency and further development.