Computation of Transient Voltages on Wind Turbines on Frequency-Dependent Soil Caused by Lightning Strikes

Azevedo, Walter Luiz Manzi de; Silva, Wagner C. da; Araújo, Anderson Ricardo Justo de; Filho, José Pissolato

doi:10.1109/wcnps53648.2021.9626203

Cited by 5 publications

(4 citation statements)

References 10 publications

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“…This phenomenon is explained by decreasing the lightning current front time, a more steep curve produced due to the inductive behavior of grounding electrodes with 100 m low soil resistivity. This problem is already described in[12], the present result agrees well for 1000 m soil resistivity.…”

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confidence: 90%

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Lightning Transient Analysis Comparison and Wind Turbine Models Using PSCAD/EMTDC Circuit Simulator

Chinges

Zhao

2022

J. Phys.: Conf. Ser.

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This paper aims to compute the lightning electromagnetic transient overvoltage and current on the wind turbine using the PSCAD/EMTDC simulation program. The double-peaked lightning current, tower, grounding system models, and dangerous situation of the grounding system are investigated by the PSCAD simple circuit branch segment codes and defining components. A comparison analysis has been performed to see the influence of lightning current wave shapes and grounding characteristics. The simulation results show that 43 kA and 31 kA lightning currents produce 200 kV overvoltage on the turbine grounding in case of 1000 Ω·m soil resistivity. However, current amplitudes on the equipotential grounding system become 28 kA and 20 kA. The influencing factors of the surge protection device are determined using good accuracy computer simulation.

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supporting

confidence: 90%

“…figure12. This phenomenon is explained by decreasing the lightning current front time, a more steep curve produced due to the inductive behavior of grounding electrodes with 100 m low soil resistivity.…”

mentioning

confidence: 90%

Lightning Transient Analysis Comparison and Wind Turbine Models Using PSCAD/EMTDC Circuit Simulator

Chinges

Zhao

2022

J. Phys.: Conf. Ser.

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“…As shown in Fig. 1, there are four types of lightning strikes in power systems: lightning strike to a ground wire, phase conductor, ground near towers [24], as well as to a wind generator tower, which causes a surge that proceeds toward the transformer [28]. Generally, it occurs due to their height and installation location.…”

Section: A Transformer Resonance Occurring Due To Lightning Effectmentioning

confidence: 99%

“…Generally, it occurs due to their height and installation location. Under these circumstances, several tens of kilo amperes may flow from the tower, which can induce a high overvoltage nearby the power transformers [28]. The lightning current usually includes a current with a high rate of rise, around 10 kA/µs, and a slower rate of fall, such as 0.6 kA/µs [29], demonstrating a variety of harmonic contents.…”

Section: A Transformer Resonance Occurring Due To Lightning Effectmentioning

confidence: 99%

Transformer Resonance: Reasons, Modeling Approaches, Solutions

et al. 2023

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Due to the extension of the power grid with many complex and compact pieces of power equipment, transformers will be more exposed to fast transient, resulting from various resonance conditions. Transformer resonance can result in severe overvoltage on internal parts of the winding, leading to insulation failure and, consequently, transformer outage. The main reasons for resonance occurrence, the practical method to measure the resonance of transformers, and the solution for preventing transformer resonances have been discussed in the scientific reports over the past few decades; however, a comprehensive review of these studies is not present in the literature. Hence this paper aims to provide a comprehensive review to categorize the main reasons for transformer resonance, modeling methods, and appropriate solutions to suppress this phenomenon and suggest some prospective protection for future works.

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Comparison of soil modeling concerning physical factors: Application to transient analysis in wind turbines

de Azevedo,

da Silva,

de Araújo

et al. 2024

International Journal of Electrical Power & Energy Systems

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Computation of Transient Voltages on Wind Turbines on Frequency-Dependent Soil Caused by Lightning Strikes

Cited by 5 publications

References 10 publications

Lightning Transient Analysis Comparison and Wind Turbine Models Using PSCAD/EMTDC Circuit Simulator

Lightning Transient Analysis Comparison and Wind Turbine Models Using PSCAD/EMTDC Circuit Simulator

Transformer Resonance: Reasons, Modeling Approaches, Solutions

Comparison of soil modeling concerning physical factors: Application to transient analysis in wind turbines

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