Saturday, 15 November 2014

MULTI INPUT CONVERTER FOR DISTRIBUTED RENEWABLE ENERGY SOURCES



G.Senthil Kumar 1, J.Mohan 2
1PG Scholar, Department of EEE, Ranganathan Engineering College, Coimbatore, India.

2Assistant Professor, Department of EEE, Ranganathan Engineering College, Coimbatore, India.


     A new two-input isolated dc-dc converter based on a distributed multi-transformer structure, which is suitable for hybrid renewable energy systems is investigated and designed. The power density of the converter is improved and the circuit structure is simplified because the power devices are completely shared in the primary side and the two filter inductors in the bi-directional DC-DC converters and the isolated transformer in the full-bridge topology are integrated and replaced by the coupled inductors. With the phase-shifted pulse width-modulation (PWM) control, the proposed converter can draw power from two different sources and deliver it to the load individually and simultaneously. The operation principle of the proposed converter has been analyzed in detail. A prototype converter with two different DC voltage sources has been simulated and analyzed with different aspects.
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