A DUAL-SWITCH COUPLED INDUCTOR-BASED HIGH STEPUP DC-DC CONVERTER FOR PHOTOVOLTAIC-BASED RENEWABLE ENERGY APPLICATION
Author(s):
Vinoba.S, Dr.T.S. Sivarani
Keywords:
Abstract
This paper presents a DC-DC boost converter topology for low input and high output voltage applications, such as photovoltaic systems, fuel cell systems, high-intensity discharge lamp (HID), and electric vehicles. The suggested configuration consists of a three-winding coupled-inductor, a single switch and two hybrid voltage multiplier cells. Furthermore, two independent hybrid voltage multiplier cells are in parallel when the single switch S is turned on, and they are in series when the switch S is turned off. So the advantages of the proposed converter structure are summarized as follows: a) A coupled inductor with three windings is introduced in the presented converter structure. The two secondary windings of the coupled inductor are respectively used to form a hybrid multiplier cell on the one hand, on the other hand, it increases the control freedom of the voltage gain, enhances the utility rate of magnetic core and power density, and reduces the stress of power components to provide a stable constant dc output voltage. b) The two hybrid multiplier cells can absorb synchronously the energy of stray inductance, which not only reduces the current stress of corresponding diodes, but also greatly alleviates the spike voltage of the main switch, which improves the efficiency. c) The two hybrid multiplier cells are connected in series to supply power energy for the load, so the voltage gain is extended greatly due to this particular structure.
Article Details
Unique Paper ID: 163230

Publication Volume & Issue: Volume 0, Issue no

Page(s): 35 - 39
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