Fault Characteristic Analysis of Dual Active Bridge Converter Based Multi-Voltage-Level AC/DC Hybrid Distribution Network

被引：0
|
作者：
Qi X. [1 ,2 ]
Pei W. [1 ,2 ]
Li L. [1 ,2 ]
Kong L. [1 ,2 ]
机构：
[1] University of Chinese Academy of Sciences, Shijingshan District, Beijing
[2] Institute of Electrical Engineering, Chinese Academy of Sciences, Haidian District, Beijing
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2019年 / 39卷 / 06期
基金：
国家重点研发计划;
关键词：
AC/DC hybrid distribution network; Dual active bridge (DAB) converter; Fault characteristic; Grounding scheme; Interactions between AC and DC system;
D O I：
10.13334/j.0258-8013.pcsee.180311
中图分类号：
学科分类号：
摘要：
Dual active bridge (DAB) converter can connect several AC distribution networks with different voltage levels by a common DC bus. The fault characteristics of this system are complicated and need to be investigated in detail. In this paper, the fault characteristics of the DAB based multi-voltage- level AC/DC hybrid distribution network were analyzed in detail. Firstly, fault characteristics of single-phase grounding fault in AC grid/VSC side and pole-to-ground fault in DC side were investigated thoroughly. Then the effects of DAB on fault characteristics of the system under different grounding schemes of DC capacitor were analyzed and compared. Based on this, the interactions between AC and DC system during the fault were investigated and compared comprehensively. Besides, a method to analyze the fault characteristic of the system with DAB was proposed. Finally, the results were verified by Matlab simulations. The conclusions were derived that the DAB has more influence on the fault characteristics of system with the direct grounding scheme and DAB can reduce the influence between the AC and DC system, which provide a theoretical basis for the design of grounding and protection schemes. © 2019 Chin. Soc. for Elec. Eng.
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页码：1582 / 1591
页数：9
相关论文
共 26 条
  • [1] Sheng W., Li R., Li Y., Et al., A preliminary study on voltage level sequence and typical network architecture of direct current distribution network, Proceedings of the CSEE, 36, 13, pp. 3391-3403, (2016)
  • [2] Song Q., Liu B., Liu W., Et al., An overview of research on smart DC distribution power network, Proceedings of the CSEE, 33, 25, pp. 9-19, (2013)
  • [3] Huang R., Pu T., Liu K., Et al., Design of hierarchy and functions of regional energy Internet and its demonstration applications, Automation of Electric Power Systems, 39, 9, (2015)
  • [4] Boroyevich D., Cvetkovic I., Dong D., Et al., Future electronic power distribution systems a contemplative view, International Conference on Optimization of Electrical and Electronic Equipment, pp. 1369-1380, (2010)
  • [5] Kakigano H., Miura Y., Ise T., Low-voltage bipolar-type DC microgrid for super high quality distribution, IEEE Transactions on Power Electronics, 25, 12, pp. 3066-3075, (2010)
  • [6] Jiang D., Zheng H., Research status and developing prospect of DC distribution network, Automation of Electric Power Systems, 36, 8, pp. 98-104, (2012)
  • [7] Zhang L., Tang W., Liang J., Et al., Power-voltage coordinated control in hybrid AC/DC medium voltage distribution networks based on VSC, Proceedings of the CSEE, 36, 22, pp. 6067-6075, (2016)
  • [8] Wu H., Zhang J., Xing Y., A family of multiport buck-boost converters based on DC-link-inductors (DLIs), IEEE Transactions on Power Electronics, 30, 2, pp. 735-746, (2015)
  • [9] Cheng J., Xu Z., Analysis of AC faults in converter station and characteristics of its relay protection, Proceedings of the CSEE, 31, 22, pp. 88-95, (2011)
  • [10] Yang J., Fletcher J.E., O'Reilly J., Short-circuit and ground fault analyses and location in VSC-based DC network cables, IEEE Transactions on Industrial Electronics, 59, 10, pp. 3827-3837, (2012)
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