A DPWM based Control Strategy to Integrate Photovoltaic System and Battery Storage using Grid Connected Three-level T-Type Inverter

In this paper, integration of photovoltaic (PV) system and battery storage is considered using Three-level T-Type inverter. To attain the highest efficiency, PV panels are considered to follow MPPT algorithm while batteries are operated based on their state of charge (SOC) condition. To provide distortion-free output current, it is essential considering unbalanced condition produced due to inconsistency of MPPT and SOC. Moreover, proper tradeoff between inverter and grid is realized so that inverter is automatically adapted with demand-power of grid. All the targets are carried out by proper control of Discontinuous PWM. The proposed method is evaluated by simulation study.