Impact of Electrolyzer on the Operation of a Dual Active Bridge Converter
Rohan Shailesh Deshmukh (TU Delft - DC systems, Energy conversion & Storage)
G. Rituraj (TU Delft - DC systems, Energy conversion & Storage)
H. Vahedi (TU Delft - DC systems, Energy conversion & Storage)
Aditya Shekhar (TU Delft - DC systems, Energy conversion & Storage)
Pavol Bauera (TU Delft - DC systems, Energy conversion & Storage)
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Abstract
Electrolysis requires a high DC current at low voltage to produce hydrogen from water. Designing power converters for such a load requirement could be challenging while fulfilling the galvanic isolation needs. Therefore, prior knowledge of the electrolyzer's impact on the converter operation should be needed. In this context, this paper investigates the behavior of the Dual Active Bridge (DAB) converter when utilized for electrolysis. A MATLAB simulation of DAB with a 10 kW alkaline electrolyzer is developed. Several converter parameters, such as the phase shift angle, series inductance, peak and RMS currents, and voltage gain, are analyzed during electrolysis. Distinct operating behavior is observed from the analysis.