Modeling of Hybrid Power Systems Combining Grid-Following and Grid-Forming Inverters Using Energetic Macroscopic Representation

Inverter based resources are expected to be the main power supply source in the future. Energetic Macroscopic Representation (EMR) is increasingly effective for modeling and controlling multi-physical systems, which can help to solve the complexity of power grid. However the EMR model of grid connected of this kind of sources has not been discussed widely. This paper presents an model of grid forming and grid following inverter in operating with single machine infinite bus by using EMR. Beside that, the system of both two types of inverter and generator are arranged in IEEE 9 bus test system. The simulation of the system is performed with various scenarios to validate the effectiveness of the representation method as well as the control strategy.