Location of direct lightning impacts to overhead transmission lines by means of a time of arrival algorithm

Jiménez, Rodrigo; Herrera, J.

doi:10.1109/naps.2012.6336356

Cited by 2 publications

(1 citation statement)

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“…Three typical techniques used by the lighting location systems cost of time of arrival [23], magnetic direction finding [24] and interferometry [25], which been used to applied on broader lightning location. For the direct lightning strike on conductor, many techniques are used to identify abnormal positions, and they are not only used for locating lightning, but are also able to compute fault locations.…”

Section: Introductionmentioning

confidence: 99%

Identify Direct Lightning Strike Location Based on Discrete Wavelet Transform for 115-kV Transmission System

Chiradeja

Ngaopitakkul

2022

IEEE Access

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This paper proposes three techniques for locating lightning strikes in a 115 kV transmission system over 88.5 km, based on the arrival time of a transient wave obtained from a discrete wavelet transform (DWT). The first technique calculates the location based on the 'type D' travelling wave method. The second technique analyses the first arrival time and same reflected-back wave arrival time between two substations. In the third technique, two sensors are installed to record arrival times at each sensor. Case studies of direct lightning strikes to phase conductors (shielding failure) are simulated using the 'Alternative Transients Program/Electromagnetic Transients Program' (ATP/EMTP). The influences of three parameters are considered: inception angles, the phase of the conductor, and the position at which the lightning struck the transmission system. By performing an operation scheme for all techniques, a positive sequence current is calculated, using a three-phase current from the ATP/EMTP program which is converted using Clark's transform. A positive sequence current is extracted to several scales using the DWT, and the orders of arrival times for both substations are determined. After the arrival times are obtained, each technique uses a different order of arrival time for calculating the lightning location. By comparing the average error among the three techniques, it is shown that the arrival time of the two sensors' technique is less than that of the other techniques.

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Section: Introductionmentioning

confidence: 99%