TY - GEN
T1 - A single-stage capacitor-bridge boost converter topology for PV-battery series integration in regulated DC microgrids
AU - Kim, Namwon
AU - Roy, Chondon
AU - Parkhideh, Babak
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/6/14
Y1 - 2021/6/14
N2 - Integration of a solar photovoltaic (PV) generation and a battery energy storage (BES) is a suitable solution for sustainable energy production and management for the next energy grid model, such as DC microgrids. Although this PV-battery integration has been widely studied in DC microgrid applications, many integrations still use legacy power electronics converter topologies such as DC-DC boost converters. This paper proposes a novel DC-DC power electronics converter topology that allows seamless integration of a solar PV array and a BES and interfaces them to a regulated DC microgrid. In the proposed topology, a single power converter stage is designed with the PV-battery DC-series integration approach. To be interfaced with the regulated DC microgrid, the PV-battery DC-series network equips a capacitor-bridge. Operation modes and switching principles are described in detail, and the asymmetrical PWM switching strategy is proposed to satisfy the inductor volt-second balance under asymmetrical system operating conditions. The feasibility and effectiveness of the proposed topology have been verified through simulation and experimental results.
AB - Integration of a solar photovoltaic (PV) generation and a battery energy storage (BES) is a suitable solution for sustainable energy production and management for the next energy grid model, such as DC microgrids. Although this PV-battery integration has been widely studied in DC microgrid applications, many integrations still use legacy power electronics converter topologies such as DC-DC boost converters. This paper proposes a novel DC-DC power electronics converter topology that allows seamless integration of a solar PV array and a BES and interfaces them to a regulated DC microgrid. In the proposed topology, a single power converter stage is designed with the PV-battery DC-series integration approach. To be interfaced with the regulated DC microgrid, the PV-battery DC-series network equips a capacitor-bridge. Operation modes and switching principles are described in detail, and the asymmetrical PWM switching strategy is proposed to satisfy the inductor volt-second balance under asymmetrical system operating conditions. The feasibility and effectiveness of the proposed topology have been verified through simulation and experimental results.
KW - Capacitor-bridge boost converter
KW - Dc microgrid
KW - Dc-dc converter topology
KW - Pv-battery dc-series integration
UR - http://www.scopus.com/inward/record.url?scp=85115706374&partnerID=8YFLogxK
U2 - 10.1109/APEC42165.2021.9487440
DO - 10.1109/APEC42165.2021.9487440
M3 - Conference contribution
AN - SCOPUS:85115706374
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 2613
EP - 2619
BT - 2021 IEEE Applied Power Electronics Conference and Exposition, APEC 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 36th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2021
Y2 - 14 June 2021 through 17 June 2021
ER -
