Lightning Attachment to UHV Power Transmission Lines: Effect of the Phase Voltage

Cuaran, Jose; Becerra, Marley; Román, Francisco

doi:10.1109/tpwrd.2018.2885161

Cited by 12 publications

(2 citation statements)

References 35 publications

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“…e study makes the calculated results for VFTO simulations more compatible with the actual VFTO characteristics measured and therefore closer to the real situation. Using a reasonable modelling method, references [6][7][8][9][10] introduced and simulated the amplitude-frequency characteristics of VFTOs in GIS and obtained the VFTO-simulated waveforms that are consistent with their theoretical characteristics. ese papers studied the factors a ecting the amplitude-frequency characteristics of VFTOs and then the methods of suppressing VFTOs, such as the inhibition busbar proposed in references [11][12][13][14], which is a relatively novel VFTO inhibition measure.…”

Section: Introductionmentioning

confidence: 79%

Study on Very Fast Transient Overvoltage Characteristics of Gas-Insulated Switchgear Substation Based on Hybrid Reactive Power Compensation

Chen

Zheng

et al. 2022

Mathematical Problems in Engineering

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In recent years, gas-insulated switchgear (GIS) substations have become widely used in power systems. Due to their compact structure, extremely high oscillation frequencies are prone to extremely high oscillation transient overvoltages or very fast transient overvoltages (VFTOs) when the isolating switch or circuit breaker is operated. The characteristics of these special fast transient processes in GIS and the effect of hybrid reactive power compensation (HRPC) on these fast transient processes were studied. A simulation of the GIS model was established, and based on the transient model of HRPC and the theory of the transmission line, the effects of VFTO produced by HRPC switching operation and the parameters of HRPC on VFTO were studied and the differences in the characteristics of VFTOs in substations with or without HRPC. Based on the conclusions of our study on the influence of HRPC on VFTO, the inhibitory effects of a ferrite magnet ring and an inhibitor busbar on VFTO were verified.

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Section: Introductionmentioning

confidence: 79%

Study on Very Fast Transient Overvoltage Characteristics of Gas-Insulated Switchgear Substation Based on Hybrid Reactive Power Compensation

Chen

Zheng

et al. 2022

Mathematical Problems in Engineering

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“…The maximum penetrating current, on the other hand, depends on the lightning attachment properties of the shield wire(s) and pole conductors. Recent findings indicate that not only the positions of shield wires and pole conductors, but also the instantaneous value and the polarity of the operating voltage are important to the shielding properties [9,10].…”

Section: Shielding Failuresmentioning

confidence: 99%

An Improved Statistical Method for Calculating Lightning Overvoltages in HVDC Overhead Line/Cable Systems

Lennerhag¹,

Lundquist²,

Engelbrecht³

et al. 2019

Energies

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HVDC cable systems connected to HVDC overhead lines are subject to fast front overvoltages emanating from the line when lightning strikes a shield wire (backflashover) or a pole conductor (shielding failure). Representative fast front overvoltage levels for HVDC cable systems are usually established without considering their statistical characteristics. A statistical method to determine overvoltages related to the acceptable mean time between failure (MTBF) for the cable system was developed previously. The method accounts for the statistical distribution of lightning current magnitudes as well as the attenuation of the overvoltage wave due to corona discharges on the line, since this effect dominates for system voltages up to about ±320 kV. To make the method suitable for higher system voltages as well, this article introduces an improved statistical method which also accounts for surge attenuation through resistive effects, soil ionization, and statistical treatment of overvoltages due to shielding failures. To illustrate the improved method, it is applied to a case study for a ±525 kV DC line.

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Experimental investigation on correlation between fast-front lightning current and the resultant arc channel luminosity

Zhou

Fan

Wang

et al. 2020

Journal of Electrostatics

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Lightning Attachment to UHV Power Transmission Lines: Effect of the Phase Voltage

Cited by 12 publications

References 35 publications

Study on Very Fast Transient Overvoltage Characteristics of Gas-Insulated Switchgear Substation Based on Hybrid Reactive Power Compensation

Study on Very Fast Transient Overvoltage Characteristics of Gas-Insulated Switchgear Substation Based on Hybrid Reactive Power Compensation

An Improved Statistical Method for Calculating Lightning Overvoltages in HVDC Overhead Line/Cable Systems

Experimental investigation on correlation between fast-front lightning current and the resultant arc channel luminosity

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