OpenIWPI: Open-Instance Wave-Phasor Interface Library for Power System Simulation Studies in Modelica

Abstract

In the past decades, a large number of power electronicconverter-based energy resources have been connected togrids around the world. The increasing number of suchdevices is pushing for both electromechanical andelectromagnetic dynamic simulations to be part of routinestability studies for transmission planning studies. Hybridwave-phasor simulations have been proposed in theliterature to address this challenge. This paper describesOpen-Instance Wave-Phasor Interface (OpenIWPI), a Modelicalibrary used to couple phasor-based and electromagneticpower system models, allowing simulation and linearizationof such hybrid models to be performed altogether. Examplesare presented to describe how the library can be useful inpower system studies.