RT journal article
T1 Fault-tolerant control for a microgrid with PV systems and energy storage systems integrated into quasi-Z-source cascaded H-bridge multilevel inverter
A1 Horrillo Quintero, Pablo
A1 García Triviño, Pablo
A1 Sarrias Mena, Raúl
A1 García Vázquez, Carlos Andrés
A1 Fernández Ramírez, Luis Miguel
A2 Ingeniería Eléctrica
A2 Ingeniería en AutomáticaElectrónica, Arquitectura y Redes de Computadores
K1 Energy management system
K1 Fault-tolerant operation
K1 Microgrid
K1 Photovoltaic power plant
K1 Quasi-Z-source cascaded H-bridge multilevel inverter
AB To ensure the reliability of microgrids (MGs), this paper presents a multi-fault tolerant control for a three-phase energy storage quasi-impedance multilevel-cascaded H-bridge inverter (ES-qZS-CHBMLI) with a photovoltaic (PV) power generation-based MG. In this paper, a battery energy storage system (BESS) is implemented to smooth out the PV generation fluctuations. In the event of a fault, most studies propose the injection of a fundamental zero sequence (FZS) to balance the system after a fault. However, the FZS based-method increases the modulation and it is limited by the converter operation range. The state-of-charge (SOC) unbalanced problem has traditionally been solved by balancing the BESSs as a single unit. This paper introduces an energy management system (EMS) based on the SOC proportional power distribution to balance the power injected into the grid. When one bridge faults, it is bypassed, and the remaining bridges in that phase change their operating conditions according to the references set by the EMS. Individual phase control allows multi-fault issues to be addressed. The simulation results of a three-phase grid-connected ES-qZS-CHBMLI PV-based MG implemented in MATLAB/Simulink validate the proposed multi-fault control and EMS. In addition, an experimental validation (based on OPAL RT4520 and dSPACE MicroLabBox units) confirm these results.
PB Elsevier Ltd
SN 0378-7796
YR 2024
FD 2024
LK http://hdl.handle.net/10498/32299
UL http://hdl.handle.net/10498/32299
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 10-may-2026