Multilevel Inverter based PV-STATCOM

The solar farm inverter is found unutilized in the night time. It can be acted as a STATCOM in the night time. It is called PV-STATCOM. A Multilevel inverter based PV-STATCOM is presented in this paper for reactive power flow control to regulate bus voltage and hence increase grid power transmission limits. Five level cascaded H-bridge multilevel inverter is demonstrated as PV-STATCOM. It reduces harmonics and thereby filter requirement can be minimized. MATLAB Simulation results show reduced THD significantly.