Summer Research Fellowship Programme of India's Science Academies

Simulation of Grid-Connected Three Phase PV Inverter along with Battery Storage

Abines SG

Thiagarajar College of Engineering, Madurai.

Dr. Subba Reddy B.

Indian Institute of Science, Bangalore.


The generation of electricity depends on the availabilty of resources like hydro, nuclear, thermal etc. Since these sources of energy are limited, we need to make a transition towards renewable energy sources such as solar energy. The cost of electricity production is high during peak demand as compared to normal demand. Photovoltaics (PV) can be used to aid the grid during peak demand to reduce fuel consumption and consequently, production cost. The power produced by PV is supplied to the grid or load via the inverter. It is supplied to the grid only when the power produced is more than the load demand, the inverter plays a very crucial role. Present work aims to model a Space Vector based Pulse Width Modulated inverter which is integrated with the battery storage and also with the grid. Control systems have been developed for controlling power flow between the Inverter, Grid and the Battery. The power flow depends on the time of day and insolation. Maximum Power Point Tracking (MPPT) is used to extract maximum power from PV. The simulation of the above model is done in Matlab Simulink. The performance of the inverter is analyzed from the obtained simulation results.

Keywords: Space Vector PWM, Pulse Width Modulation, MPPT

Written, reviewed, revised, proofed and published with