Data and MATLAB source code for "Comparative Analysis of Control Strategies for Green Hydrogen Production in Off-Grid Photovoltaic Systems: Regulation, Robustness and Techno-Economic Implications"

Data and MATLAB source code supporting the manuscript "Comparative Analysis of Control Strategies for Green Hydrogen Production in Off-Grid Photovoltaic Systems: Regulation, Robustness and Techno-Economic Implications" (Hydrogen, MDPI). The study compares six converter-level controllers (PI cascade, PI with power-balance feed-forward, input-output feedback linearization with and without integral action, a retuned variant and IDA-PBC) on a seven-state averaged model of an off-grid system with a photovoltaic array, an LFP battery and a PEM electrolyzer on a shared DC bus, under a cloud drop-out stress scenario, two Monte Carlo sets (plant variation and model mismatch with measurement error), two representative days with supervisory start/stop operation, a battery-size sweep, published aging models and a levelized cost of hydrogen analysis. The archive contains 31 CSV files with the values behind every table and figure of the revised manuscript, the 31 MATLAB functions that generate them, the intermediate result files and a README with the reproduction order. The study is purely computational; Monte Carlo realizations are seeded with rng(seed), seeds 1 to 200. Requires MATLAB R2020b or later; the plotting script uses the Statistics and Machine Learning Toolbox. Version 2.0.1 corresponds to the revised manuscript and supersedes 2.0.0; version 1.0.0 corresponds to the originally submitted manuscript.