RESEARCH ON VARIABLE FREQUENCY PHASE SHIFT HYBRID CONTROL STRATEGY OF DUAL ACTIVE BRIDGE CONVERTER WITH WIDE INPUT VOLTAGE

被引：0
|
作者：
Zhuo F. [1 ]
Dong J. [1 ]
机构：
[1] Fujian Key Laboratory of New Energy Generation and Power Conversion, Fuzhou University, Fuzhou
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2024年 / 45卷 / 06期
关键词：
bidirectional DC-DC converter; dual active bridge converter; peak current; RMS current; variable frequency phase shift;
D O I：
10.19912/j.0254-0096.tynxb.2023-0293
中图分类号：
学科分类号：
摘要：
With the rapid development of the new energy industry，the application demand of a wide range of conditions is more and more extensive. As the classical topology of bidirectional DC-DC converter，dual active bridge DC-DC converter has the problems of decreasing soft switching range，increasing current peak value and current RMS value in wide range applications. Therefore，this paper focuses on analyzing the influence of wide input conditions on the characteristics of dual active bridge DC-DC converter under triple phase shift control，and deduces the theoretical expressions of the variation of soft switching range，current peak value and current RMS with switching frequency under wide input voltage. On this basis，a phase-shifting variable frequency hybrid control strategy is proposed. By adjusting the switching frequency，the soft switching range of the dual active bridge DC-DC converter is extended，and the current peak value and current effective value are reduced，and the overall efficiency of the converter is improved. Finally，a prototype of a 1 kW dual-active bridge DC-DC converter based on SiC device is built to verify the effectiveness of the proposed control strategy. © 2024 Science Press. All rights reserved.
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页码：234 / 243
页数：9
相关论文
共 28 条
  • [1] LIU F，, Et al., Flexible voltage control strategy considering distributed energy storages for DC distribution network［J］, IEEE transactions on smart grid, 10, 1, pp. 163-172, (2019)
  • [2] DE DONCKER R W A A，, DIVAN D M，, KHERALUWALA M H., A three-phase soft-switched high-power-density DC/DC converter for high-power applications ［J］, IEEE transactions on industry applications, 27, 1, pp. 63-73, (1991)
  • [3] ZHANG J Y., Research on bidirectional charge-discharge circuit for V2G application and its control strategy［D］, (2014)
  • [4] SONG Q, ZHAO B，, LIU W H，, Et al., An overview of research on smart DC distribution power network［J］, Proceedings of the CSEE, 33, 25, pp. 9-19, (2013)
  • [5] ZHAO B, SONG Q, Et al., Next-generation multi-functional modular intelligent UPS system for smart grid［J］, IEEE transactions on industrial electronics, 60, 9, pp. 3602-3618, (2013)
  • [6] XIE M B., Research on vehicle-mounted dual active bridge DC/DC converter ［D］, (2020)
  • [7] DONG M H., Bidirectional chargers for EVs［D］, (2020)
  • [8] XUE L X, SHEN Z Y，, BOROYEVICH D，, Et al., Dual active bridge-based battery charger for plug-in hybrid electric vehicle with charging current containing low frequency ripple［J］, IEEE transactions on power electronics, 30, 12, pp. 7299-7307, (2015)
  • [9] ZHAO B，, AN F，, SONG Q，, Et al., Development and application of DC transformer based on dual-active-bridge ［J］, Proceedings of the CSEE, 41, 1, pp. 288-298, (2021)
  • [10] HUANG J J., Research on bidirectional full-bridge DC-DC converter for power electronic transformer, (2016)
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