A New Non-Isolated SEPIC Converter with High Gain and High Efficiency for Photovoltaic Application
Subject Areas : electrical and computer engineering
M.
Mahmoudi
1
B.
Mirzaeian Dehkordi
2
M.
Niroomand
3
Keywords: High step-up DC-DC converter non-isolated SEPIC converter soft switching photovoltaic systems,
Abstract :
In this paper, a new non-isolated SEPIC converter for photovoltaic application is introduced and analyzed. Regarding to low output voltage PV panel and high voltage application of PV systems, a high gain converter is designed. This converter has advantages such as high output voltage gain while keeping the switch voltage stress equal to a regular SEPIC converter, improve the turn-on and turn-off transients of the switch and high efficiency. Also, switching losses and EMI noise are reduced by soft switching method. The MOSFET operates at zero-voltage-switching (ZVS) turn-off and near zero-current-switching (ZCS) turn-on.
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