期刊
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
卷 68, 期 3, 页码 1828-1840出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2020.2972462
关键词
Isolated bidirectional dc-dc converter; low-voltage direct current distribution system; three-phase dual-active-bridge converter (3P-DAB)
资金
- Korea Energy Technology Evaluation and Planning and Ministry of Trade, Industry and Energy [2019381010001A]
- Korea Evaluation Institute of Industrial Technology (KEIT) [2019381010001A] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
A practical design methodology is proposed to enhance the power conversion efficiency of a three-phase dual-active-bridge (3P-DAB) converter by reducing phase current and transistor turn-off current, which has been verified by experimental results using a 25-kW prototype 3P-DAB converter.
To improve the power conversion efficiency of a three-phase dual-active-bridge (3P-DAB) converter for low-voltage direct current distribution systems, a practical design methodology is proposed. Commonly, the 3P-DAB converter is designed by only specification, such as the rated power, input/output voltage, and frequency. However, using the conventional design method, the efficiency is low under heavy load conditions due to the high conduction loss. In this article, based on the practical power loss analysis, the effective design methodology of the coupling inductance in the 3P-DAB converter is proposed, focusing on power conversion efficiency. It can mitigate the drawbacks of the common design by reducing the peak and rms phase current and the insulated-gate bipolar transistors turn-off current. Experimental results verify the validity of the proposed design methodology and controller using a 25-kW prototype 3P-DAB converter.
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