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http://dx.doi.org/10.7316/KHNES.2022.33.3.226

A Study on the Fuel Cell Equivalent Circuit Modeling  

OH, HWANYEONG (Fuel Cell Research Center, Korea Institute of Energy Research)
CHOI, YOON YOUNG (Fuel Cell Research Center, Korea Institute of Energy Research)
SOHN, YOUNG-JUN (Fuel Cell Research Center, Korea Institute of Energy Research)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.33, no.3, 2022 , pp. 226-231 More about this Journal
Abstract
Power converter are usually equipped for fuel cell power generation system to connect alternating current (AC) electric power grid. When converting direct current (DC) of fuel cell power source into AC, the power converter has a frequency ripple, which affects the fuel cell and the grid. Therefore, an equivalent circuit having dynamic characteristics of fuel cell power, for example, impedance, is useful for designing an inverter circuit. In this study, the current, voltage and impedance characteristics were calculated through fuel cell modeling and validated by comparing them with experiments. The equivalent circuit element values according to the current density were formulated into equations so that it could be applied to the circuit design. It is expected that the process of the equivalent circuit modeling will be applied to the actual inverter circuit design and simulated fuel cell power sources.
Keywords
Fuel cell; Inverter; Equivalent circuit; Impedance; Modeling;
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Times Cited By KSCI : 2  (Citation Analysis)
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