ANALYSIS AND IMPLEMENTATION OF A BIDIRECTIONAL DC-DC CONVERTER WITH COUPLED INDUCTOR
Author(s):
M J MURALI , K.PresillaVasanthini, G.Kalapriyadharshini
Keywords:
Converter , Bi-directional
Abstract
This paper proposes a Bidirectional DC–DC converter. The conventional Bidirectional DC-DC converter suffers from high voltage stresses on the power devices. In order to recycle the leakage inductor energy and to minimize the voltage stress on the power devices, the proposed Bidirectional DC-DC converter employs a coupled inductor with same number of winding turns in the primary and secondary sides. In step-up mode, the primary and secondary windings of the coupled inductor are operated in parallel-charge and series-discharge to achieve high step-up voltage gain. In step-down mode, the primary and secondary windings of the coupled inductor are operated in series-charge and parallel-discharge to achieve high step-down voltage gain. Thus, the proposed converter has higher step-up and step-down voltage gains than the conventional bidirectional DC-DC boost/buck converter. Under same electric specifications for the proposed converter and the conventional bidirectional boost/buck converter, the average value of the switch-current in the proposed converter is less than the conventional bidirectional boost/buck converter.
Article Details
Unique Paper ID: 144778

Publication Volume & Issue: Volume 4, Issue 3

Page(s): 204 - 210
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