Minimize RMS Current Method of Wide Input Voltage Dual Active Bridge Converter

被引：0
|
作者：
Fei Y. [1 ]
Li R. [1 ]
Lei Y. [1 ]
Shu Z. [1 ]
机构：
[1] School of Electrical Engineering, Southwest Jiaotong University, Chengdu, 610031, Sichuan Province
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2019年 / 39卷 / 19期
关键词：
Dual active bridge converter; Triple phase shift control; Unified optimal control; Wide-range input voltage;
D O I：
10.13334/j.0258-8013.pcsee.190756
中图分类号：
学科分类号：
摘要：
The fixed-parameter control method of dual-active-bridge (DAB) converter controlled by TPS scheme cannot adapt to the wide input voltage range, and the mismatch of converter parameter leads to the increase of inductor current. To solve this problem, this paper proposed a variable parameter control strategy to minimize root-mean-square (RMS) value of the inductor current. By dividing the mode and analyzing the power characteristics and soft switching characteristics in each mode, the unified optimal relationship between the control variables in the full range of the equivalent voltage ratio is derived. The control strategy calculates the equivalent voltage ratio in real time, then uses the unified optimal relationship to update the control variables in real time, so that the converter parameters are always matched, the RMS value of the inductor current is the smallest, and all switches can realize soft switching in the full power range. Finally, a 15kW DAB converter experimental platform based on SiC devices was established. The experimental results verified that the proposed control strategy meets the control target of minimum current RMS value within the double input voltage range. The efficiency reaches more than 95% in the wide range and the highest efficiency is 97.4%. © 2019 Chin. Soc. for Elec. Eng.
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页码：5656 / 5665
页数：9
相关论文
共 17 条
  • [1] Pan X., Rathore A.K., Novel bidirectional snubberless naturally commutated soft-switching current-fed full-bridge isolated DC/DC converter for fuel cell vehicles, IEEE Transactions on Industrial Electronics, 61, 5, pp. 2307-2315, (2014)
  • [2] Akagi H., Yamagishi T., Tan N.M.L., Et al., Power-loss breakdown of a 750V 100kW 20kHz bidirectional isolated DC-DC converter using SiC-MOSFET/SBD dual modules, IEEE Transactions on Industry Applications, 51, 1, pp. 420-428, (2015)
  • [3] Zhao B., Song Q., Liu W., Et al., Overview of dual-active-bridge isolated bidirectional DC-DC converter for high-frequency-link power-conversion system, IEEE Transactions on Power Electronics, 29, 8, pp. 4091-4106, (2014)
  • [4] Brando G., Del Pizzo A., Meo S., Model-reference adaptive control of a dual active bridge DC-DC converter for aircraft applications, 2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), (2018)
  • [5] Naayagi R.T., Forsyth A.J., Shuttleworth R., Bidirectional control of a dual active bridge DC-DC converter for aerospace applications, IET Power Electronics, 5, 7, pp. 1104-1118, (2012)
  • [6] Ramos-Paja C.A., Bordons C., Romero A., Et al., Minimum fuel consumption strategy for PEM fuel cells, IEEE Transactions on Industrial Electronics, 56, 3, pp. 685-696, (2009)
  • [7] De D., Klumpner C., Patel C., Et al., Modelling and control of a multi-stage interleaved DC-DC converter with coupled inductors for super-capacitor energy storage system, IET Power Electronics, 6, 7, pp. 1360-1375, (2013)
  • [8] Zhao B., Yu Q., Sun W., Bi-directional full-bridge DC-DC converters with dual-phase-shifting control and its backflow power characteristic analysis, Proceedings of the CSEE, 32, 12, pp. 43-50, (2012)
  • [9] Shen Y., Sun X., Li W., Et al., A modified dual active bridge converter with hybrid phase-shift control for wide input voltage range, IEEE Transactions on Power Electronics, 31, 10, pp. 6884-6900, (2016)
  • [10] Bai H., Mi C., Eliminate reactive power and increase system efficiency of isolated bidirectional dual-active-bridge DC-DC converters using novel dual-phase-shift control, IEEE Transactions on Power Electronics, 23, 6, pp. 2905-2914, (2008)
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