Parameter Design and Performance Analysis for High-efficiency and Low-Ripple Electrolyzed Waterto-Hydrogen Converter

Abstract

As a flexible, zero-carbon, high-density energy carrier, hydrogen energy plays an important role in achieving carbon neutrality goals as medium or long-term high-power energy storage. Wind power and photovoltaic power (PV) generation integrated hydrogen storage equipment convert and utilize energy as fuel cells, it can alleviate PV and wind power curtailment condition effectively, which will reduce carbon emissions. Hydrogen production converter has decisive influence on of hydrogen production efficiency from water electrolysis. This paper present key parameter design method based on typical hydrogen production converter topology, in addition transformer leakage inductance and port capacitance in the topology circuit and their influence on the output ripple of the converter is studied combined with the simulation and prototype experimental results. Output ripple and loss analysis is also carried out to verify its performance.