High-Gain Observer in Fuel Cell and Cascaded DC-DC Boost Converter SystemSoukaina Nady, Hassan El Fadil, Abdellah Lassioui, Yassine El Asri and Anwar HasniE3S Web Conf., 601 (2025) 00062DOI: https://doi.org/10.1051/e3sconf/202560100062