A New Dual-Bridge Series Resonant DC-DC Converter With Dual Tank

Compared to the dual-active-bridge converter, the dual-bridge series resonant converter (DBSRC) can widen soft-switching range. To further widen the soft-switching range and improve the circuit performance, a new DBSRC with dual tank based on DBSRC is proposed in this paper. This new converter featu...

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Veröffentlicht in:IEEE transactions on power electronics 2018-05, Vol.33 (5), p.3884-3897
Hauptverfasser: Wu, Junjuan, Li, Yuci, Sun, Xiaofeng, Liu, Feilong
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creator Wu, Junjuan
Li, Yuci
Sun, Xiaofeng
Liu, Feilong
description Compared to the dual-active-bridge converter, the dual-bridge series resonant converter (DBSRC) can widen soft-switching range. To further widen the soft-switching range and improve the circuit performance, a new DBSRC with dual tank based on DBSRC is proposed in this paper. This new converter features two resonant tanks and a tapped transformer, and it can perform better than the DBSRC by optimized tap coefficient x of the tapped transformer. Its operation principle, voltage gain, the soft-switching characteristics, and output power are analyzed in detail, and compared with the DBSRC. Results show that the proposed dual-tank topology has presented higher voltage gain, wider soft-switching region, and larger output power than the traditional DBSRC when the tap-coefficient x is selected reasonably. At last, a 1-kW prototype is built; experimental results verify the feasibility and advantages of the proposed dual-tank converter.
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To further widen the soft-switching range and improve the circuit performance, a new DBSRC with dual tank based on DBSRC is proposed in this paper. This new converter features two resonant tanks and a tapped transformer, and it can perform better than the DBSRC by optimized tap coefficient x of the tapped transformer. Its operation principle, voltage gain, the soft-switching characteristics, and output power are analyzed in detail, and compared with the DBSRC. Results show that the proposed dual-tank topology has presented higher voltage gain, wider soft-switching region, and larger output power than the traditional DBSRC when the tap-coefficient x is selected reasonably. 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subjects Bridge circuits
Capacitors
Dual active bridge (DAB)
dual tank
dual-bridge series resonant converter (DBSRC)
Electric converters
Electric potential
Frequency control
Power generation
Resonant frequency
soft switching
Switching
tap coefficient
tapped transformer
Topology
Transformers
Voltage gain
Zero voltage switching
title A New Dual-Bridge Series Resonant DC-DC Converter With Dual Tank
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