PHOTOVOLTAIC INVERTER
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United States of America Patent
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Issued Date -
May 19, 2016
app pub date -
Sep 28, 2015
filing date -
Nov 13, 2014
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to a photovoltaic inverter capable of reducing a leakage current and a switching loss by changing a pulse width modulation (PWM) method and a configuration of an output filter. To this end, the photovoltaic inverter includes a direct-current (DC) link capacitor connected in parallel to a photovoltaic module, a switch unit including first to fourth switches and operating by a half unipolar switching method, and a reactor having one end connected to another end of the first switch and one end of the second switch, and another end connected to a grid, the reactor having a predetermined inductance.
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