This paper presents the modeling of the isolated multiport bidirectional dual active bridge DC-DC Converter to be used in fast charging applications. The proposed topology uses four different full-bridge sections: the first full-bridge is able to manage the PV source, the second full-bridge is connected to a stationary storage system and can operate as either a source or a load, the remaining two full-bridges are able to manage the charging of the battery units up to two vehicles. All ports are connected through a high-frequency multi-winding transformer which allows to create a magnetic node. The analytical model of the four-port bidirectional dual active bridge DC-DC (4P-DAB) Converter is addressed in order to investigate the system behavior and to obtain the control law to manage the power flows between the ports. Switching model of a 100 kVA 4P-DAB Converter has been created in MATLAB/Simulink to validate the analytical model. The modes of operation of the proposed topology is then validated through the Hardware-In-the-Loop (HIL) test bench. © 2019 IEEE.
Mendola, M.l., Di Benedetto, M., Lidozzi, A., Solero, L., Bifaretti, S. (2019). Four-Port Bidirectional Dual Active Bridge Converter for EVs Fast Charging. In 2019 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) (pp.1341-1347). IEEE [10.1109/ECCE.2019.8912252].
Four-Port Bidirectional Dual Active Bridge Converter for EVs Fast Charging
S. Bifaretti
2019-09-01
Abstract
This paper presents the modeling of the isolated multiport bidirectional dual active bridge DC-DC Converter to be used in fast charging applications. The proposed topology uses four different full-bridge sections: the first full-bridge is able to manage the PV source, the second full-bridge is connected to a stationary storage system and can operate as either a source or a load, the remaining two full-bridges are able to manage the charging of the battery units up to two vehicles. All ports are connected through a high-frequency multi-winding transformer which allows to create a magnetic node. The analytical model of the four-port bidirectional dual active bridge DC-DC (4P-DAB) Converter is addressed in order to investigate the system behavior and to obtain the control law to manage the power flows between the ports. Switching model of a 100 kVA 4P-DAB Converter has been created in MATLAB/Simulink to validate the analytical model. The modes of operation of the proposed topology is then validated through the Hardware-In-the-Loop (HIL) test bench. © 2019 IEEE.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
