TY - GEN
T1 - A novel synchronous H6 for improving light load efficiency of bidirectional inverters in a DC distribution system
AU - Alshammari, Meshari
AU - Duffy, Maeve
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/6/14
Y1 - 2021/6/14
N2 - This paper presents a method for overcoming reduced light-load efficiency imposed by bidirectional inverters integrated with a DC distribution system powered by renewable energy. An evaluation of existing topologies to achieve optimal efficiency is presented, and loss breakdown under light-load is investigated using analytic models and PSIM simulation. The study proposes a novel synchronous H6 transformer-less topology. The results show that the proposed topology at achieves 98.3% light load efficiency (at 20% load) when operated in inverter mode, whereas 96.5% is obtained at full load, both which are higher than the standard H6 topology efficiency by 4.5% and 1.5%, respectively. The rectifier mode shows similar levels of improvement of 4% at light load and 1.2% for under full load conditions.
AB - This paper presents a method for overcoming reduced light-load efficiency imposed by bidirectional inverters integrated with a DC distribution system powered by renewable energy. An evaluation of existing topologies to achieve optimal efficiency is presented, and loss breakdown under light-load is investigated using analytic models and PSIM simulation. The study proposes a novel synchronous H6 transformer-less topology. The results show that the proposed topology at achieves 98.3% light load efficiency (at 20% load) when operated in inverter mode, whereas 96.5% is obtained at full load, both which are higher than the standard H6 topology efficiency by 4.5% and 1.5%, respectively. The rectifier mode shows similar levels of improvement of 4% at light load and 1.2% for under full load conditions.
KW - Bidirectional inverter
KW - DC system integration
KW - Grid interface
KW - Light load efficiency
KW - Synchronous H6
UR - https://www.scopus.com/pages/publications/85115679199
U2 - 10.1109/APEC42165.2021.9486986
DO - 10.1109/APEC42165.2021.9486986
M3 - Conference Publication
AN - SCOPUS:85115679199
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 1666
EP - 1673
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 -
