Voltage Sag Source Location Method Based on Comparison of Upstream Positive Sequence Parameters

被引：0

作者：

Meng Q. ^{[1
]}

Gao H. ^{[2
]}

Jia Z. ^{[1
]}

Zhong Z. ^{[1
]}

He J. ^{[2
]}

机构：

[1] College of New Energy, China University of Petroleum (East China), Qingdao

[2] Weifang Power Supply Company, State Grid Shandong Electric Power Company, Weifang

来源：

Dianli Xitong Zidonghua/Automation of Electric Power Systems | 2022年 / 46卷 / 13期

关键词：

power quality; probabilistic criterion; upstream and downstream location; voltage sag; voltage sag source location;

D O I：

10.7500/AEPS20211013003

中图分类号：

学科分类号：

摘要：

The upstream and downstream locating of the voltage sag source plays a role in clarifying the responsibilities of both the power supplier and the consumer. Facing the problem of poor applicability of the load model in the traditional location method, based on the Thevenin equivalent model, this paper proposes a voltage sag source location method by comparing the changes of the upstream positive sequence parameters before and after the voltage sag. Firstly, the upstream positive sequence parameters are identified, and the upstream and downstream positions of the voltage sag source are determined by comparing the changes of upstream system positive sequence parameters before and after the voltage sag. Considering the influence of parameter uncertainty, calculation error and measurement error, an improved criterion based on the probability is proposed. Considering the influence of errors on the location results, a probability index is introduced into the location fuzzy area, to quantitatively analyze the responsibilities of the upstream and downstream parties that cause the voltage sag, which improves the rationality of the location results. Finally, the correctness and effectiveness of the proposed method are verified by the IEEE standard model. © 2022 Automation of Electric Power Systems Press. All rights reserved.

引用

页码：177 / 186

页数：9

共 20 条

[1]

CHENG Haozhong, Introduction to power quality, (2013)

[2]

PARSONS A C, GRADY W M, POWERS E J., A direction finder for power quality disturbances based upon disturbance power and energy, IEEE Transactions on Power Delivery, 15, 3, pp. 1081-1086, (2000)

[3]

TANG Yi, CHEN Jia, FAN Xinmei, Et al., A method for detecting voltage sag sources based on disturbance active current direction, Transactions of China Electrotechnical Society, 30, 23, pp. 102-109, (2015)

[4]

LIN Xiyao, SHAO Zhenguo, ZHANG Yan, Sag source positioning of power grid with doubly fed power supply based on matching typical mode of the virtual voltage, Power System Technology, 45, 1, pp. 322-330, (2021)

[5]

LIU C Z, ZHAO J Y, WU W, Et al., A method of voltage sag source location considering source load characteristics, 2019 12th International Conference on Intelligent Computation Technology and Automation （ICICTA）, pp. 566-569, (2019)

[6]

LU Tao, LYU Ganyun, JIA Dexiang, Et al., Voltage sag source location of DC distribution network based on DC disturbance power, Electrotechnics Electric, 6, pp. 1-4, (2020)

[7]

TANG Yi, WEN Lei, YU Qi, Et al., A direction finder for voltage sag source based on the disturbance power direction, Proceedings of the CSEE, 35, 9, pp. 2202-2208, (2015)

[8]

LI C, TAYJASANANT T, XU W, Et al., Method for voltage-sag-source detection by investigating slope of the system trajectory, IEE Proceedings: Generation, Transmission and Distribution, 150, 3, (2003)

[9]

PRADHAN A K, ROUTRAY A., Applying distance relay for voltage sag source detection, IEEE Transactions on Power Delivery, 20, 1, pp. 529-531, (2005)

[10]

LI Danqi, MEI Fei, ZHANG Chenyu, Et al., Deep belief network based method for feature extraction and source identification of voltage sag, Automation of Electric Power Systems, 44, 4, pp. 150-158, (2020)

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