Enhanced Control of PV CHB Inverter With Embedded BESS

De Riso, M.; Coppola, M.; Daliento, S.; Guerriero, P.; Del Pizzo, A.

doi:10.1109/ESARS-ITEC57127.2023.10114824

This work deals with a grid-tied single-phase photovoltaic (PV) Cascaded H-Bridge (CHB) inverter implementing a distributed battery energy storage system (BESS) able to output a constant active power in scheduled time intervals. The control strategy is based on a hybrid modulation technique exploiting a sorting algorithm performed on batteries' state-of-charge (SoC). The aim is to prove the reliability of the system after recovering from grid trip, which causes unbalance among the batteries' SoC. Additionally, the proposed inverter is investigated considering a deep mismatch among the PV generators. Numerical analyses are performed on a 19-level CHB inverter in PLECS environment to show the effectiveness of the proposed control strategy.

Enhanced Control of PV CHB Inverter With Embedded BESS / De Riso, M.; Coppola, M.; Daliento, S.; Guerriero, P.; Del Pizzo, A.. - (2023), pp. 1-5. (Intervento presentato al convegno 2023 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles and International Transportation Electrification Conference, ESARS-ITEC 2023 tenutosi a ita nel 2023) [10.1109/ESARS-ITEC57127.2023.10114824].