Research and application of wireless differential protection for a distribution network based on a regional ad-hoc network

被引：0

作者：

Liu Z. ^{[1
]}

Xue M. ^{[2
,3
]}

Yang L. ^{[2
,3
]}

Bao Y. ^{[1
]}

Zhang T. ^{[2
,3
]}

Zhang H. ^{[2
,3
]}

Zou L. ^{[2
,3
]}

Kang S. ^{[2
,3
]}

机构：

[1] Wuxi Power Supply Branch, State Grid Jiangsu Electric Power Co., Ltd., Wuxi

[2] Guodian Nanjing Automation Co., Ltd., Nanjing

[3] Nanjing SAC Automation Co., Ltd., Nanjing

来源：

Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | 2021年 / 49卷 / 21期

基金：

中国国家自然科学基金;

关键词：

Differential protection; Distribution network; Protection device; Regional ad-hoc network; Wireless communication;

D O I：

10.19783/j.cnki.pspc.210052

中图分类号：

学科分类号：

摘要：

Differential protection provides a reliable and effective means for fast and accurate fault isolation of distribution lines. However, traditional optical fiber laying is difficult and operation and maintenance is expensive. This limits its application in a distribution network. This paper presents a design scheme of differential protection for distribution lines under wireless communication. The communication channel for differential protection is constructed by using the technology of a regional ad-hoc network, and information transmission does not depend on public network transmission equipment. Dynamic directional compensation technology is used to realize the accurate synchronization of data on each side, and it does not depend on the external synchronization equipment. A multi-level security strategy is adopted to strengthen network security and improve the security of the service data transmission and access. The anti-interference technology of wireless communication is adopted to avoid electromagnetic interference and ensure the reliability of data transmission. Having set up a test platform in the laboratory for system testing, the results show that the wireless channel based on the regional ad-hoc network has a short transmission delay, small delay jitter, high data transmission reliability. All performance indices of the channel and protection function meet the requirements of differential protection of distribution lines. The value of engineering application and potential popularization of the technology has been verified through trial operation. © 2021 Power System Protection and Control Press.

引用

页码：167 / 174

页数：7

共 28 条

[1]

ZHANG Kaixiang, ZHANG Xiaoqing, Influence analysis of distributed generation on relay protection of distribution network, Distribution & Utilization, 34, 8, pp. 47-51, (2017)

[2]

ZHANG Weichen, XIONG Yongxin, LI Chenghao, Et al., Continuous commutation failure suppression and coordinated restoration of multi infeed DC systems based on improved VDCOL, Power System Protection and Control, 48, 13, pp. 63-72, (2020)

[3]

BADAL F R, DAS P, SARKER S K, Et al., A survey on control issues in renewable energy integration and microgrid, Protection and Control of Modern Power Systems, 4, 1, pp. 87-113, (2019)

[4]

MO Jun, JI Bin, Overcurrent protection scheme of distribution network considering grid-connection strategy of distributed generator, Journal of North China Electric Power University: Natural Science Edition, 45, 5, pp. 62-69, (2018)

[5]

GAO Weiliang, GAO Houlei, XU Bin, Et al., Feasibility analysis of 5G as differential protection channel of distribution network, Power System Protection and Control, 49, 8, pp. 1-7, (2021)

[6]

ZHAO Xuyang, WANG Cong, NIU Shengsuo, Et al., Evaluation of power supply reliability of distribution network considering neutral grounding mode and grid structure, Electrical Measurement & Instrumentation, 56, 18, pp. 49-56, (2019)

[7]

XIANG Min, HE Chuan, TIAN Li, Et al., Evaluation method for wireless communication performance of distribution network based on fuzzy neural network, Journal of Electric Power Science and Technology, 31, 2, pp. 64-71, (2016)

[8]

CAO Jinping, LIU Jianming, LI Xiangzhen, A power wireless broadband technology scheme for smart power distribution and utilization networks, Automation of Electric Power Systems, 37, 11, pp. 76-80, (2013)

[9]

XU Guangfu, ZHANG Chunhe, YAN Wei, Et al., Feeder differential protection based on EPON communication for smart distribution networks, Automation of Electric Power Systems, 38, 2, pp. 76-80, (2014)

[10]

ZHANG Baohui, HAO Zhiguo, BO Zhiqian, New development in relay protection for smart grid, Protection and Control of Modern Power Systems, 1, 2, pp. 121-127, (2016)

← 1 2 3 →