Gaussian process regression modeling of wind turbines lightning incidence with LLS information

Sarajčev, Petar; Jakus, Damir; Mudnić, E.

doi:10.1016/j.renene.2019.07.050

Cited by 9 publications

(4 citation statements)

References 29 publications

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“…One of the multi-faceted risk is the damage to the wind turbine due to the lightning strike. Blades are the most suspectable part of lightning damage [13].…”

Section: P T T a P E R P U S T A K A A N T U N K U T U N A M I N A Hmentioning

confidence: 99%

“…Boysian statistical learning and Gaussian process regression were applied on real lightning location systems data and predicted the number of lightning strikes. The effective height of the wind turbine located on a hilltop assumed to be hemispherical in shape [13]. Some of complex electrical and control systems of wind turbines have rotating composite blades up to 60m long and placed on up to more than 200 m high towers [1].…”

Section: Lightning Attachment Location On Wind Turbinementioning

confidence: 99%

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Retracted: Improvement of Wind Turbine Lightning Receptor

Al-fakih

Bagaber²,

2021

2021 International Congress of Advanced Technology and Engineering (ICOTEN)

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Lightning receptor is a device attached to a wind turbine blade that will attract and assist lightning current flow to the ground. However, lightning does not necessarily strike it, instead the other part of the wind turbine is still been stroked by lightning eventually leading to catastrophe damage of the wind turbine. This research is aimed to develop a needle-type receptor on a wind turbine blade for lightning protection system (LPS). Other than that, this project is aimed to study the practical parameters of lightning protection system, including the relation between receptor size and electric field strength. The receptors were designed by three different disk diameters of 0.2 m, 0.5 m and 0.8 m. In 0.2m receptor diameter, the comparison between the numbers and

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“…One of the multi-faceted risk is the damage to the wind turbine due to the lightning strike. Blades are the most suspectable part of lightning damage [13].…”

Section: P T T a P E R P U S T A K A A N T U N K U T U N A M I N A Hmentioning

confidence: 99%

Section: Lightning Attachment Location On Wind Turbinementioning

confidence: 99%

Retracted: Improvement of Wind Turbine Lightning Receptor

Al-fakih

Bagaber²,

2021

2021 International Congress of Advanced Technology and Engineering (ICOTEN)

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“…Finally, the lightning-related risk is not the same for all WTs within onshore wind farms. The risk is influenced by the wind farm topology, terrain orography, keraunic level, soil resistivity, wind farm layout in relation to the prevailing wind direction, local weather patterns (i.e., winter lightning), and other influential factors [44]. A lightning risk analysis for the entire wind farm ought to establish the necessary conditions for installing the second set of arresters for each individual WT, considering the total price of the risk and its premium level.…”

Section: (B)mentioning

confidence: 99%

“…A lightning risk analysis for the entire wind farm ought to establish the necessary conditions for installing the second set of arresters for each individual WT, considering the total price of the risk and its premium level. The price of the risk needs to account for the financial losses arising from lightning-related damage, replacement costs, and lost revenue from downtime [44]. After all, the investment in surge arresters is seen as buying insurance!…”

Section: (B)mentioning

confidence: 99%

Lightning Overvoltage Protection of Step-Up Transformer Inside a Nacelle of Onshore New-Generation Wind Turbines

2021

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This paper presents an electromagnetic transient analysis of lightning-initiated overvoltage stresses of the step-up transformers installed inside a nacelle of onshore, multi-megawatt, new-generation wind turbines. The increase in the wind turbine (WT) nominal power output, necessitated introducing the step-up transformer into the nacelle. A transformer installed inside a nacelle is subjected to completely different overvoltage stresses from those present if it were installed at the base of the WT tower. This has serious repercussions on its overvoltage protection (i.e., selection and installation of surge arresters) and insulation coordination. Furthermore, the overvoltage protection of medium-voltage cables (inside the tower) is also problematic when considering their length, proximity to the tower wall, and their screen grounding practices, and needs to be tackled in conjunction with that of the step-up transformer. This paper presents detailed models for the various components of the latest-generation WTs, intended for fast-front transient analysis and assembled within the EMTP software package. We further present the comprehensive results of the lightning-transient numerical simulations, covering both upward and downward (first and subsequent) strikes, their analysis, and recommendations for the optimal selection of medium-voltage surge arresters for the step-up transformers installed inside a nacelle.

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Condition Monitoring of Spud in Cutter Suction Dredger Using Physics Based Machine Learning

Barik,

Vijayan

2024

Lecture Notes in Mechanical Engineering

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Gaussian process regression modeling of wind turbines lightning incidence with LLS information

Cited by 9 publications

References 29 publications

Retracted: Improvement of Wind Turbine Lightning Receptor

Retracted: Improvement of Wind Turbine Lightning Receptor

Lightning Overvoltage Protection of Step-Up Transformer Inside a Nacelle of Onshore New-Generation Wind Turbines

Condition Monitoring of Spud in Cutter Suction Dredger Using Physics Based Machine Learning

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