PROJECT TITLE :

A Current-Fed Hybrid Dual Active Bridge DC-DC Converter for Fuel Cell Power Conditioning System with Reduced Input Current Ripple - 2017

ABSTRACT:

During this paper, a completely unique current fed hybrid dual active bridge dc-dc converter is proposed, which is suitable for an occasional-voltage fuel cell power conditioning system. The high-frequency input current ripple will be reduced to minimum as a result of the input side switches are continually switched at 50percent duty cycles notwithstanding the fuel cell voltage and also the load variation. Notch filter is utilized in the voltage feedback path to scale back the low-frequency input current ripple when interfaced with one-part inverter load. All of the facility devices will achieve zero voltage switching by the proposed control strategy. The mode analysis, the operation principle, zero-voltage switching (ZVS) conditions, and parameter design are given during this paper. A one kW prototype has been fabricated to verify the effectiveness of the proposed converter and control strategy.