Keywords
singlephase grounding fault, distribution automation, smart distribution system, selfhealing, power supply reliability
Abstract
Aiming at the nondirectly grounded distribution network of neutral point, this paper proposes to connect the small current fault line selection device to the distribution automation system. When a singlephase ground fault occurs, through the onoff control of the intelligent switch on the line and sequential logic of singlephase grounding alarm signal to determine the fault interval.Then the method isolates the fault area through the distribution automation system, restores the power supply in the nonfault area, and realizes the singlephase ground fault selfhealing of the distribution grid. In the end, this paper verifies the effectiveness and necessity of this strategy by experiments.
DOI
10.19781/j.issn.16739140.2020.04.024
First Page
176
Last Page
181
Recommended Citation
YANG, Fu; ZANG, Xuan; QU, Hanbing; LIN, Shan; GU, Shilong; and CHEN, Hao
(2020)
"Location and selfhealing of singlephase grounding fault based on distribution automation,"
Journal of Electric Power Science and Technology: Vol. 35:
Iss.
4, Article 24.
DOI: 10.19781/j.issn.16739140.2020.04.024
Available at:
https://jepst.researchcommons.org/journal/vol35/iss4/24