ADRC-based dual-loop control and stability analysis of stacked interleaved DC–DC buck converter for hydrogen production using PEM electrolyzer
Résumé
Hydrogen production via water electrolysis, particularly using Proton Exchange Membrane (PEM) electrolyzers, is a key technology for advancing renewable energy integration. Ensuring a stable and efficient supply requires DC–DC converters capable of precise regulation under disturbances. This paper proposes a dual-loop Active Disturbance Rejection Control (ADRC) strategy for a stacked interleaved DC–DC converter supplying a PEM electrolyzer. The proposed ADRC enhances robustness against disturbances and improves system stability under dynamic conditions typical of RES-based microgrids. Simulation results demonstrate that the approach significantly improves voltage regulation and overall performance—achieving a settling time of 10 ms and limiting overshoot to 20.06%—thereby ensuring a reliable and efficient power supply for PEM electrolyzers in renewable energy applications.
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