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A Novel of Bidirectional DC-DC converter drive N.MAHESH

By M-tech Scholar and Power Electronics


drive is presented in this paper. The circuit configuration of the proposed converter is very simple. The proposed converter employs a coupled inductor with same 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. The operating principle and steady-state analysis are discussed in detail. Finally, a 70 / 210 V simulation circuit is simulated in MATLAB/Simulink to verify the performance for the automobile dual- battery drive system. Index Terms:- Bidirectional DC-DC converter drive, coupled inductor

Topics: I.Introduction
Year: 2014
OAI identifier: oai:CiteSeerX.psu:
Provided by: CiteSeerX
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