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Enhanced Intermittent Modulation with Discontinuous Current Mode of a Three-Phase Dual-Active-Bridge Converter

This paper proposes an enhanced intermittent modulation (EIM) method with discontinuous current mode (DCM) to enhance power efficiency of a 700-V 20-kW three-phase dual-active bridge (3p-DAB) converter during light load operation. The 3p-DAB converter using traditional phase shift modulation (PSM) w...

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Bibliographic Details
Main Authors: Wen J., Tan N.M.L., Buticchi G., Yang J., Guenter S.
Other Authors: 57210831772
Format: Conference Paper
Published: Institute of Electrical and Electronics Engineers Inc. 2024
Subjects:
Efficiency Improvement
Intermittent Modulation
Three-phase DAB
Computer software
Efficiency
Energy transfer
Power converters
Discontinuous current mode
Efficiency improvement
Intermittent modulation
Lightload
Load condition
Low load
Power-efficiency
Three phase
Three phasis
Electric loads
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Summary:This paper proposes an enhanced intermittent modulation (EIM) method with discontinuous current mode (DCM) to enhance power efficiency of a 700-V 20-kW three-phase dual-active bridge (3p-DAB) converter during light load operation. The 3p-DAB converter using traditional phase shift modulation (PSM) will lose soft switching feature under low load condition, resulting in significant reduction in power efficiency in low load condition. Simulation results of the non-ideal 3p-DAB converter using Simulink and PLECS software have shown that the proposed EIM-DCM modulation is effective in improving the light-load power efficiency. Moreover, an optimal trajectory with high power efficiency could be found by changing the non-power transfer duration of the proposed EIM-DCM. � 2023 IEEE.

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