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Cited by 19Power Systems Fault DetectionElectromagnetic Simulation and Numerical MethodsElectrical Fault Detection and Protection

The DOI matches its Crossref record, with a small difference in title or year.

A Distribution Line Fault Location Estimation Algorithm Based on Electromagnetic Time-Reversal Method Calculated in the Finite Difference Time Domain

Sun, Jian, Yang, Qing, Xu, Wenhua, He, Wenlong·2022·IEEE Transactions on Electromagnetic Compatibility
DOI 10.1109/temc.2021.3140170
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Abstract

The distribution line is an important part of a power system. How to quickly eliminate faults is of great significance to improve the power supply reliability. Based on electromagnetic time-reversal (EMTR), this article proposes a fault location estimation algorithm calculated by the finite-difference time-domain (FDTD) method to solve two problems. One is the calculation efficiency of the fault current based method in the EMTR, and the other is the fault location accuracy of the EMTR-based method when the measurement device has a low sampling rate in the direct time. We first derived the FDTD updated equation of the node voltage, which is at the discontinuous point of the lossless single conductor transmission line. The algorithm obtains the fault current at any transverse branch of the distribution line through one-time simulation, which improves the calculation efficiency. Furthermore, considering the sampling rate of the transient signals, we analyzed the impact of the spectrum range of the transient signal, the interval of the guessed fault location, the length of the time-reversal window, the fault impedance, and the length of the line. The results showed that when the transient signal is measured at a high sampling rate (10 MHz), the proposed algorithm can be used to locate the fault with a minimum time-reversal window of 1 ms. When the sampling rate is as low as 100 kHz, the proposed algorithm can achieve accurate fault location estimation compared to the algorithm in the other time-domain electromagnetic transient simulation. The error of the proposed location algorithm is less than 100 m.

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Research works printed but not linked: 32

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Metadata

Authors
Sun, J., Yang, Q., Xu, W., & He, W.
Affiliations
  • Chongqing University (CN)
  • Lijiang Huaping Power Supply Company of Yunnan Power Grid Company Ltd., Lijiang, China
  • Yunnan Power Grid Co., Ltd. (China) (CN)
ORCID
Venue
IEEE Transactions on Electromagnetic Compatibility
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Published
2022-06
Volume
64
Issue
3
Pages
865-873
ISSN
  • 0018-9375 (ISSN-L)
  • 1558-187X
DOI
10.1109/temc.2021.3140170
OpenAlex
W4213339171
Cited by
19
References
0
Citations by year
2026: 2 · 2025: 3 · 2024: 4 · 2023: 7 · 2022: 3
FWCI
1.71
Type
journal article
Language
en
Open access
closed
Licence
Locations
IEEE Transactions on Electromagnetic Compatibility (publishedVersion)
Funders
National Natural Science Foundation of China (51477018)
Topics
  • Physical Sciences › Engineering › Control and Systems Engineering › Power Systems Fault Detection
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Electromagnetic Simulation and Numerical Methods
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Electrical Fault Detection and Protection
Keywords
electromagnetic time reversal, finite-difference time-domain simulation, short-circuit current calculation, fault impedance, power supply reliability

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