Real-time simulation modeling for PV-battery based microgrid system

This paper describes a modeling of a Microgrid using real time simulation platform and presents the results of the simulation. The Microgrid under study consists of a Photovoltaic (PV) system as an example of an unreliable resource and a battery representing an energy storage. The modeling approach and the study analysis performed are described. The model and operation scenarios have successfully been simulated in real time using OPAL-RT OP5600 digital simulator. The operation of Microgrid in performing load leveling and voltage regulation in the local power system are demonstrated. The dynamic response of the Microgrid components are presented when subjected to sudden changes in solar irradiance. Battery energy storage is shown to be very effective in complementing and compensating the fluctuation of generated power from the PV. Microgrid is also shown very effective in regulating the voltage.