A Study on the Observation of Direct Lightning Current through the Wind Turbine Generator System in the Coast of the Japan Sea

Shiraishi, Yasuhiro; Otsuka, Takahiro; Matsuura, Hideki

doi:10.1541/ieejpes.128.675

Cited by 3 publications

(3 citation statements)

References 3 publications

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“…As discussed before, there are certain extreme cases where lightning strikes of very high peak currents have been noticed, for example, winter lightning in Japan. The findings of researchers investigating winter lightning data in Japan contradicts the above findings as they claim the testing parameters are too conservative although in the papers [27], [28], no evidence of these large lightning strikes to wind turbines has been given.…”

Section: Figure 4 Cumulative Probability Of Assumed Scenariosmentioning

confidence: 89%

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Lightning protection of wind turbines — A comparison of lightning data & IEC 61400-24

Peesapati

Cotton

2009

2009 International Conference on Sustainable Power Generation and Supply

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IEC 61400 -24 dealing with lightning protection of wind turbines was first introduced in 2002. This was initially developed as a technical report. Since then, wind power has been rapidly developing with wind turbine manufacturers developing larger wind turbines which are at an increased risk of lightning strikes. With the move of large wind farms offshore, maintenance of wind turbines also becomes harder owing to the harsh and unpredictable environment. Limiting lightning strike damage on wind turbines becomes even more important. The IEC technical report has recently been developed into a full standard by the committee. The test levels (at which components should be tested) stated in the standard are based on those presented in IEC 62035 -Protection against Lightning. The present paper discusses the relevancy of the test levels in comparison to actual lightning strike data gathered from different wind farms of the world.Index Terms--Lightning, wind turbine, data Analysis, high voltage and high current.

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Section: Figure 4 Cumulative Probability Of Assumed Scenariosmentioning

confidence: 89%

“…The nearest available literature regarding lightning strikes to wind turbines and their current levels has been covered in [27], [28]. Positive peak currents of upto +40kA were observed in [28] and negative peaks of -34kA in [27]. These analyses are those from lightning strikes recorded on wind turbines in Japan.…”

Section: Lightning and Wind Turbinesmentioning

confidence: 99%

Lightning protection of wind turbines — A comparison of lightning data & IEC 61400-24

Peesapati

Cotton

2009

2009 International Conference on Sustainable Power Generation and Supply

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“…Zhongjiang ve arkadaşları kilit bağlantı noktasında bulunan Lishui köprüsünde yıldırımdan korunmanın önemini vurgulamışlardır [7]. Shiranishi rüzgar türbini yapılarında yıldırımın etkisini incelemiş [8] ve Starossek ise aşamalı yıkılma makalesinde yapıların bütün olarak tasarlanmasını incelemiş ve örnek olarak bir kabloda oluşabilecek hasarın tüm köprüyü aşamalı olarak yıkıma götürebileceğini vurgulamıştır [9]. Sektördeki iyi mühendislik uygulamaları incelendiğinde dünyadaki mevcut köprü yapılarında yıldırımdan korunma içim harici iniş iletkenli ve yapının kendisi kullanılarak yapılan iki farklı yöntem kullanılmaktadır.…”

Section: Gi̇ri̇ş (Introduction)unclassified

Asma Köprüler için Bir Yıldırımdan Korunma Sistemi Tasarımı

KOÇ,

KAYMAKÇI

2023

Journal of Polytechnic

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Asma köprüler ülkelerde büyük şehirlerin kilit bağlantı noktalarında yer almaktadır. Bundan dolayı yıldırımdan korunma sistemi böylesine önemli kritik yapılarda hayati öneme sahip olmaktadır. Yıldırım çarpması yalnızca can kaybına neden olmakla kalmaz, aynı zamanda köprüyü ve köprü üzerindeki elektro-mekanik sistemleri de tahrip edebilir. Bu nedenle yıldırımdan korunma sistemi tasarımı çok önemlidir. Bu çalışmada vaka çalışması olarak İzmit ile Yalova illeri arasında bulunan Gebze-İzmir Otoyolunun kilit noktasında yer alan dünyanın en büyük 7. asma köprüsü olan Osmangazi Köprüsü için hesaplar yapılmıştır. Yıldırımdan Korunma Sistemi (YKS) bir bütün olarak incelenmiştir. Benzer çalışmalardan farklı olarak asma köprü yapısının aşağı iniş iletkeni olarak kullanıldığında aynı tepe değerli yıldırım akımı bakımından indirme iletkenine göre daha küçük empedansa sahip olan direk gövdesinin tercih edileceğini hatta bu tür asma köprülerde indirme iletkeni kullanılmayıp doğrudan köprü metal gövdesinin akım yolu olarak kullanılabileceğini gösterilmiştir. Bu çalışmada literatürdeki örneklerinden farkı olarak asma köprülerde yıldırımdan korunma sistemi bir bütün halinde incelenerek gerekli hesaplar ile asma köprüler için en güvenilir sistem önerilmiştir.

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Performance optimization of a dual-rotor wind turbine system

Habash

Groza

Guillemette³

2010

2010 IEEE Electrical Power &Amp; Energy Conference

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We are building an efficient and smart wind turbine system. The significant features of this turbine are its dual rotor blade system which is positioned horizontally at upwind and downwind locations, its drive train which is installed horizontally inside the tower with a new efficient induction generator, and its control and safety systems. The project focuses mainly on the methodology to analyze the power flow performance. The scientific literature indicates that a dual-rotor system could extract additional 20-30% power compared to a single rotor system from the same wind stream. Our wind tunnel test indicates that a scaled-down version of the dual-rotor turbine system may produce up to 60% more power than a single-rotor system. Designed for on-site power generation by commercial, industrial, and residential electric users in remote locations, our model uses wind tunnel effect to capture and amplify wind for optimized production of energy. It is intended that this turbine system will be available in tower-mounted design and can capture wind in regions where it has low speed wind. The successful design should allow an economical transition to a utility scale.

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A Study on the Observation of Direct Lightning Current through the Wind Turbine Generator System in the Coast of the Japan Sea

Cited by 3 publications

References 3 publications

Lightning protection of wind turbines — A comparison of lightning data & IEC 61400-24

Lightning protection of wind turbines — A comparison of lightning data & IEC 61400-24

Asma Köprüler için Bir Yıldırımdan Korunma Sistemi Tasarımı

Performance optimization of a dual-rotor wind turbine system

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A Study on the Observation of Direct Lightning Current through the Wind Turbine Generator System in the Coast of the Japan Sea

Cited by 3 publications

References 3 publications

Lightning protection of wind turbines &#x2014; A comparison of lightning data &#x00026; IEC 61400-24

Lightning protection of wind turbines &#x2014; A comparison of lightning data &#x00026; IEC 61400-24

Asma Köprüler için Bir Yıldırımdan Korunma Sistemi Tasarımı

Performance optimization of a dual-rotor wind turbine system

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Product

Resources

About

Lightning protection of wind turbines — A comparison of lightning data & IEC 61400-24

Lightning protection of wind turbines — A comparison of lightning data & IEC 61400-24