TY - GEN
T1 - Implementation of Three-Phase Bidirectional Isolated DC-DC Converter with Improved Light-Load Efficiency
AU - Sharifuddin, N. Syahira M.
AU - Tan, Nadia M.L.
AU - Toh, C. L.
AU - Ramli, Ahmad Qisti
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021
Y1 - 2021
N2 - Phase-Shift Modulation (PSM) strategy had been widely used in Three-Phase Bidirectional Isolated DC-DC Converter (3P-BIDC). Nevertheless, this conventional high frequency PSM method is more suitable for medium and rated load application. In light-load conditions (0-0.3 p.u.), the power efficiency may drop to less than 65%. Thus, this paper proposes an enhanced switching strategy by introducing a low frequency burst-mode signal to control the number of active PSM cycle over one burst cycle. A 150-V, 1.5-kW, 3P-BIDC prototype is developed for laboratory testing. This prototype is first evaluated with the conventional PSM strategy for wide range of loads. Then the proposed method is applied for light-load condition evaluation. The experimental results prove that an average of 90% power efficiency could be achieved under light load condition.
AB - Phase-Shift Modulation (PSM) strategy had been widely used in Three-Phase Bidirectional Isolated DC-DC Converter (3P-BIDC). Nevertheless, this conventional high frequency PSM method is more suitable for medium and rated load application. In light-load conditions (0-0.3 p.u.), the power efficiency may drop to less than 65%. Thus, this paper proposes an enhanced switching strategy by introducing a low frequency burst-mode signal to control the number of active PSM cycle over one burst cycle. A 150-V, 1.5-kW, 3P-BIDC prototype is developed for laboratory testing. This prototype is first evaluated with the conventional PSM strategy for wide range of loads. Then the proposed method is applied for light-load condition evaluation. The experimental results prove that an average of 90% power efficiency could be achieved under light load condition.
KW - burst-mode
KW - intermittent switching
KW - light-load efficiency improvement
KW - phase-shift modulation
KW - three-phase bidirectional isolated dc-dc converter
KW - three-phase dual-active bridge
UR - http://www.scopus.com/inward/record.url?scp=85124550395&partnerID=8YFLogxK
U2 - 10.1109/IEACon51066.2021.9654573
DO - 10.1109/IEACon51066.2021.9654573
M3 - Conference contribution
AN - SCOPUS:85124550395
T3 - IEACon 2021 - 2021 IEEE Industrial Electronics and Applications Conference
SP - 224
EP - 229
BT - IEACon 2021 - 2021 IEEE Industrial Electronics and Applications Conference
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2nd IEEE Industrial Electronics and Applications Conference, IEACon 2021
Y2 - 22 November 2021 through 23 November 2021
ER -
