TY - GEN
T1 - Fault Mechanism and Protection Strategy for DC Micro-grid
AU - Wan, Mingming
AU - Dong, Run
AU - Yang, Jingru
AU - Xu, Zixiao
AU - Zhang, Bowen
AU - He, Kun
AU - Li, Weilin
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/6
Y1 - 2019/6
N2 - This paper aims to introduce the research status about the protection technology for DC micro-grid system and summarizes the protective devices and protective methods of different DC micro-grid structures systematically. Firstly, this paper introduces composition and operation of DC microgrid. Then, this paper analyzes the short circuit fault process and proposes a general method to evaluate the fault current. Secondly, the development status of a variety of protection devices used in the DC system is presented. Thirdly, considering that the capacitor discharges instantly and power electronic devices are vulnerable to the high fault current, the various schemes about quickly cutting off or limiting the fault current are compared. Finally, this study summarizes the fault detection methods for DC microgrids. The outcome of this paper can be used as important reference for practical implementation of DC microgrid protections.
AB - This paper aims to introduce the research status about the protection technology for DC micro-grid system and summarizes the protective devices and protective methods of different DC micro-grid structures systematically. Firstly, this paper introduces composition and operation of DC microgrid. Then, this paper analyzes the short circuit fault process and proposes a general method to evaluate the fault current. Secondly, the development status of a variety of protection devices used in the DC system is presented. Thirdly, considering that the capacitor discharges instantly and power electronic devices are vulnerable to the high fault current, the various schemes about quickly cutting off or limiting the fault current are compared. Finally, this study summarizes the fault detection methods for DC microgrids. The outcome of this paper can be used as important reference for practical implementation of DC microgrid protections.
KW - DC micro-grid
KW - fault characteristics
KW - protection methods
KW - protective devices
UR - http://www.scopus.com/inward/record.url?scp=85070583629&partnerID=8YFLogxK
U2 - 10.1109/ISIE.2019.8781148
DO - 10.1109/ISIE.2019.8781148
M3 - 会议稿件
AN - SCOPUS:85070583629
T3 - IEEE International Symposium on Industrial Electronics
SP - 2597
EP - 2602
BT - Proceedings - 2019 IEEE 28th International Symposium on Industrial Electronics, ISIE 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 28th IEEE International Symposium on Industrial Electronics, ISIE 2019
Y2 - 12 June 2019 through 14 June 2019
ER -