PROJECT TITLE:

A Novel Control Strategy of Suppressing DC Current Injection to the Grid for Single-Phase PV Inverter - 2015

ABSTRACT:

Photovoltaic (PV) inverters while not the isolation transformer become a lot of engaging because of higher potency and lower weight. But, it may have dc offset current problem and is crucial to the facility system. During this paper, a novel management strategy of suppressing dc current injection to the grid for PV inverters is investigated. It's based mostly on the idea of accurately sensing the dc offset voltage of PV inverter output. Since dc element of the inverter output can be eliminated, dc injection to the grid will be effectively suppressed. Finally, the control scheme is verified by the experiment.