A new traveling wave fault locating algorithm for line current differential relays

Schweitzer, Edmund O.; Guzmán, Armando; Mynam, Mangapathirao V.; Skendžić, V.; Kasztenny, B.; Marx, S.

doi:10.1049/cp.2014.0045

Cited by 13 publications

(1 citation statement)

References 9 publications

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“…Theoretically, it is not affected by factors such as the system operation mode, fault type, or transition resistance [14,15], and the location accuracy is high. According to the location principle, it can be divided into the single-ended method [16], double-ended method [17], and modulus time difference method [18]. The single-ended method uses the time difference between the initial TW of the fault and the reflected TW of the fault point to construct the distance equation.…”

Section: Introductionmentioning

confidence: 99%

A Fault Location Method for Medium Voltage Distribution Network Based on Ground Fault Transfer Device

Sun,

Ma,

Wei

et al. 2023

Electronics

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The arc suppression device based on ground fault transfer (GFT) has been preliminarily applied in the medium voltage distribution network (MVDN). An accurate travelling wave (TW) fault location method is proposed to extend the use of the ground fault transfer device. D-PMU is used as a travelling wave detection tool to record the transient voltage travelling waves of fault grounding and bus active grounding during arc suppression. Then, the faulty section is identified through the time difference of travelling wave arrival at the upstream and downstream measurement points. On this basis, the fault location equations of the arrival time and distance of the upstream travelling wave are established, and an accurate fault location method based on the arrival time difference of the travelling wave is proposed. The simulation model is established by PSCAD/EMTDC, and the results show that the method has high location accuracy, and the absolute error is less than 30 m. It is not affected by the TW velocity, the fault conditions, or the distributed power sources.

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