Modeling and Control of Solar PV System Combined with Battery Energy Storage System

The sun is the main source for much of power in our global system. So, the research activities in solar systems should be endless, especially with the high cost and pollution problems caused by the conventional power sources. This paper presents modeling, control of a solar photovoltaic system using a maximum power point tracking technique. Because of the intermittent nature of the solar irradiation, an energy storage system is connected in parallel with the PV system. The proposed system in this paper includes a battery energy storage system and the required DC-DC and DC-AC controllers. Different scenarios have been studied such as changing irradiation levels at a fixed load and load variation at a certain irradiation value to verify the control response of the proposed system. The control systems modeled in the d-q reference frame for controlling the active and reactive power from the system is been simulated using electromagnetic transient simulation to verify the system operation.