Integrated Photovoltaic and Dynamic Voltage Restorer with Nine Switch Power Converter for Power Quality Enhancement

The paper presents the new system configuration of integrated PV system with the self-supported Dynamic Voltage Restorer. The “six-port converter” has nine semiconductor switches. It will decreasing the over all switch count from twelve to nine and also to improve the system ability against the symmetrical/asymmetrical faults and voltage sag. The six-port converter operational modes are presented. The control algorithm is developed with proposed configuration under different operating condition. Keywords-Bidirectional power flow, Photovoltaic(PV) System,Power Quality Enhancement,Voltage Sag,Faults. _______________________________________________________________________________________________________________