Multiport Converters for Low-Carbon Buildings: System-Level Co-Design, Control, and Validation. - Ahmed Y. Farag; Paula Muñoz-Peña; Sam Harrison; Marc Cheah-Mañe; Oriol Gomis-Bellmunt; Elena Ciprés Lalaguna; Agustí Egea-Alvarez; Paolo Mattavelli (IEEE Access, 2026)