Smart Inverter Modeling Toolbox for EMT Simulation Studies of Power Systems

Abstract

Recently smart inverter interfaces for distributed energy resources (DERs) have been proposed to allow DER devices to implement grid support functions. Applying these functions to address the impact of DER integration to power systems requires studies including electro-magnetic transient (EMT) analysis. To simplify the process of setting up such studies, a comprehensive toolbox based on MATLAB/Simulink allowing users to implement, test and perform EMT studies with smart inverter interfaced DERs is presented in this paper. The toolbox allows the user to define and implement all the grid support functions as defined in IEEE 1547–2018 as well CSA C22.3 No.9. Some case studies with a solar PV generation system interfaced with a smart inverter are also presented to demonstrate the effectiveness of the toolbox.