SINGLE-STAGE TRANSFORMER-LES PHOTOVOLTAIC INVERTER

摘要

Described herein a single-stage transformer-less PV inverter (102) comprising a first inductor Li, an output capacitor C2, a coupling capacitor C1 and a magnetically- coupled inductor L2 The single-stage transformer-less PV inverter (102) further includes switching members to control the connections between the first inductor L|, the output capacitor C2, the coupling capacitor C1 and the magnetically-coupled inductor L2 to provide a controlled output alternating current (AC) power to a load (106) from an input direct current (DC) power from a PV source (104).