A novel algorithm for determining lightning leader time onset from electric field records and its application for lightning channel height calculations

Karnas, G.; Maslowski, Grzegorz; Barański, Piotr

doi:10.1016/j.epsr.2019.106021

Cited by 5 publications

(3 citation statements)

References 6 publications

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“…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. These techniques include phasor measurement [26][27][28][29][30][31][32], travelling waves [33][34][35][36][37][38][39], a discrete wavelet transform [40][41][42][43][44][45][46][47], and artificial intelligence [48][49][50][51], among others.…”

Section: Introductionmentioning

confidence: 99%

“…The travelling wave technique is based on the natural aspects of an electromagnetic wave which results from the disturbance in a conductor during the transient state. Its properties can be widely applied to locate a disturbance in a power system [33][34][35][36][37][38][39]. The research proposed a novel algorithm to detect and identify the stepped leader stage and lightning channel height of cloud-to-ground lightning using the electric field [33].…”

Section: Introductionmentioning

confidence: 99%

“…Its properties can be widely applied to locate a disturbance in a power system [33][34][35][36][37][38][39]. The research proposed a novel algorithm to detect and identify the stepped leader stage and lightning channel height of cloud-to-ground lightning using the electric field [33]. Traveling-waved-based fault-location methods have the advantage of less interference from the saturation characteristics of the current transform, as well as the fault resistance, fault type, and operating mode of system; thus, these methods have been successfully applied to locating faults in transmission networks.…”

Section: Introductionmentioning

confidence: 99%

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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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