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A Noval High Efficiency Grid Connected 1kW PCS for Fuel Cell  

Kim, Tae-Jin (Korea Electrotechnology Research Institute(KERI))
Publication Information
Transactions of the Korean hydrogen and new energy society / v.19, no.5, 2008 , pp. 417-422 More about this Journal
Abstract
In this paper, a novel DC/DC low-voltage high-current converter circuit is proposed to improve the efficiency of power converter used in the grid-connected fuel-cell generator system. We proposed a novel high efficiency grid-connected power conditioning system for RPG fuel cell. On the result of that, the loss of system was decreased rapidly by driving stack within the condition of maximum efficiency. The peak currents of the current-type inductor and the transformer's coil are reduced by synchronizing switching frequency of Buck-type converter is increased twice as the Push-Pull converter's switching frequency. The novel structure of DC/DC converter is able to realize ZVS-ZCS in fuel-cell system is proposed. The proposed switching component of Push-Pull converter has the ZVS and ZCS function by using the circuit of new passive clamp.
Keywords
Fuel cell; Power conditioning system; High efficiency; Grid connecting;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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