Current Stress Optimized Scheme with Model-Based Feedforward for Dual-Active-Bridge DC-DC Converters

被引：0
|
作者：
An F. [1 ]
Yang K. [1 ]
Wang S. [1 ]
Luo S. [1 ]
Feng X. [1 ]
机构：
[1] School of Electrical Engineering Southwest, Jiaotong University, Chengdu
来源：
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | 2019年 / 34卷 / 14期
关键词：
Dual phase-shift control; Dual-active-bridge DC-DC converters; Dynamic response; Efficiency; Model-based feedforward;
D O I：
10.19595/j.cnki.1000-6753.tces.180865
中图分类号：
学科分类号：
摘要：
In order to reduce the current stress, improve the efficiency and enhance the dynamic response of dual-active-bridge (DAB) DC-DC converters, a current stress optimized scheme with model-based feedforward is proposed in this paper. Through developing the discrete model of output voltage, introducing feedforward control and combining the current stress optimized calculation, the efficiency and dynamic performance of DAB converters under the input voltage fluctuation and load disturbance conditions can be improved significantly. In addition, the proposed control scheme can effectively improve the starting characteristics of the converter, so that the output voltage reaches the desired value directly without overshoot. Finally, three control schemes, i.e. traditional voltage-closed control based on single phase-shift, current stress optimized control based on dual phase-shift and the proposed current stress optimized scheme with model-based feedforward, are compared in a DAB converter scale-down experimental prototype based on SiC MOSFET with TMS320F28335 as the core controller. The experimental results have verified the correctness and effectiveness of the proposed control scheme. © 2019, Electrical Technology Press Co. Ltd. All right reserved.
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页码：2946 / 2956
页数：10
相关论文
共 19 条
  • [1] 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, IEEE Transactions on Industry Applications, 27, 1, pp. 63-73, (1991)
  • [2] Lan Z., Tu C., Xiao F., Et al., The power control of power electronic transformer in hybrid AC-DC microgrid, Transactions of China Electrotechnical Society, 30, 23, pp. 50-57, (2015)
  • [3] Zheng Z., Gu C., Li Y., Et al., Topology and control method of a novel multi-level converter with multi-winding high-frequency trans-former, Transactions of China Electrotechnical Society, 29, 10, pp. 12-18, (2014)
  • [4] Yang J., Liu J., Zhang J., Et al., Voltage balance control of a power electronic traction transformer based on dual active bridge DC-DC converters, Transactions of China Electrotechnical Society, 31, 1, pp. 119-127, (2016)
  • [5] An F., Wang S., Yang K., Multi-module optimized power balance control scheme of the input-series-output-parallel operated dual active bridge DC-DC converters, Transactions of China Electrotechnical Society, 33, 16, pp. 3732-3742, (2018)
  • [6] 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)
  • [7] Zhao B., Song Q., Liu W., Et al., High-frequency-link DC solid state transformers for flexible DC distribution, Proceedings of the CSEE, 34, 25, pp. 4295-4303, (2014)
  • [8] Zhao B., Song Q., Liu W., Efficiency characterization and optimization of isolated bidi-rectional DC-DC converter based on dual-phase-shift control for DC distribution application, IEEE Transactions on Power Electronics, 28, 4, pp. 1711-1727, (2013)
  • [9] Huang J., Wang Y., Li Z., Et al., Unified triple-phase-shift control to minimize current stress and achieve full soft-switching of isolated bidi-rectional DC-DC converter, IEEE Transactions on Industrial Electronics, 63, 7, pp. 4169-4179, (2016)
  • [10] Zhao B., Yu Q., Sun W., Extended-phase-shift control of isolated bidirectional DC-DC converter for power distribution in microgrid, IEEE Transactions on Power Electronics, 11, 27, pp. 4667-4680, (2012)
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