Optimized Hybrid Control for the Current-Fed Semi Dual-Active-Bridge DC-DC Converter

Deshang Sha; Yichao Fu

doi:10.1109/TPEL.2023.3311457

Optimized Hybrid Control for the Current-Fed Semi Dual-Active-Bridge DC-DC Converter

Deshang Sha^*, Yichao Fu

^*Corresponding author for this work

School of Automation

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

This article proposes a variable clamp voltage control strategy for the current-fed semi dual-Active-bridge dc-dc converter. For the low-voltage-side, the duty cycle of the bottom switches will be changed with the load variation. Full-load operation stability and full range of zero-voltage switching (ZVS) can be achieved. An instantaneous turn-off current tracking loop is designed to achieve duty cycle control and ZVS. The dc inductor current ripple can be designed smaller and the turn-off loss can be reduced. For the high-voltage side, the duty cycle will be calculated to avoid additional loss caused by body diodes. Besides, a coupled inductor is adopted to reduce core loss. The ZVS resonant process is analyzed in detail. The proposed control is verified to be effective by a 1-kW experimental prototype.

Original language	English
Pages (from-to)	15750-15758
Number of pages	9
Journal	IEEE Transactions on Power Electronics
Volume	38
Issue number	12
DOIs	https://doi.org/10.1109/TPEL.2023.3311457
Publication status	Published - 1 Dec 2023

Keywords

Coupled inductor
current fed
semi dual-Active-bridge (SDAB)
variable clamp voltage

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10.1109/TPEL.2023.3311457

Cite this

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title = "Optimized Hybrid Control for the Current-Fed Semi Dual-Active-Bridge DC-DC Converter",

abstract = "This article proposes a variable clamp voltage control strategy for the current-fed semi dual-Active-bridge dc-dc converter. For the low-voltage-side, the duty cycle of the bottom switches will be changed with the load variation. Full-load operation stability and full range of zero-voltage switching (ZVS) can be achieved. An instantaneous turn-off current tracking loop is designed to achieve duty cycle control and ZVS. The dc inductor current ripple can be designed smaller and the turn-off loss can be reduced. For the high-voltage side, the duty cycle will be calculated to avoid additional loss caused by body diodes. Besides, a coupled inductor is adopted to reduce core loss. The ZVS resonant process is analyzed in detail. The proposed control is verified to be effective by a 1-kW experimental prototype.",

keywords = "Coupled inductor, current fed, semi dual-Active-bridge (SDAB), variable clamp voltage",

author = "Deshang Sha and Yichao Fu",

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N2 - This article proposes a variable clamp voltage control strategy for the current-fed semi dual-Active-bridge dc-dc converter. For the low-voltage-side, the duty cycle of the bottom switches will be changed with the load variation. Full-load operation stability and full range of zero-voltage switching (ZVS) can be achieved. An instantaneous turn-off current tracking loop is designed to achieve duty cycle control and ZVS. The dc inductor current ripple can be designed smaller and the turn-off loss can be reduced. For the high-voltage side, the duty cycle will be calculated to avoid additional loss caused by body diodes. Besides, a coupled inductor is adopted to reduce core loss. The ZVS resonant process is analyzed in detail. The proposed control is verified to be effective by a 1-kW experimental prototype.

AB - This article proposes a variable clamp voltage control strategy for the current-fed semi dual-Active-bridge dc-dc converter. For the low-voltage-side, the duty cycle of the bottom switches will be changed with the load variation. Full-load operation stability and full range of zero-voltage switching (ZVS) can be achieved. An instantaneous turn-off current tracking loop is designed to achieve duty cycle control and ZVS. The dc inductor current ripple can be designed smaller and the turn-off loss can be reduced. For the high-voltage side, the duty cycle will be calculated to avoid additional loss caused by body diodes. Besides, a coupled inductor is adopted to reduce core loss. The ZVS resonant process is analyzed in detail. The proposed control is verified to be effective by a 1-kW experimental prototype.

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KW - semi dual-Active-bridge (SDAB)

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Optimized Hybrid Control for the Current-Fed Semi Dual-Active-Bridge DC-DC Converter

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Keywords

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