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Sizing Transformer ...
Sizing Transformer Considering Transformer Thermal Limits and Wind Farm Wake Effect
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- Li, Zhongtian (författare)
- KTH,Elektroteknik,KTH Royal Inst Technol, Stockholm, Sweden
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- Morozovska, Kateryna, 1992- (författare)
- KTH,Elektroteknisk teori och konstruktion,Beräkningsvetenskap och beräkningsteknik (CST),KTH Royal Inst Technol, Stockholm, Sweden
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- Hilber, Patrik, 1975- (författare)
- KTH,Elektroteknisk teori och konstruktion,KTH Royal Inst Technol, Stockholm, Sweden.
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- Laneryd, Tor (författare)
- Hitachi ABB Power Grids, Västerås, Sweden
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- Ivanell, Stefan, 1974- (författare)
- Uppsala universitet,Vindenergi
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(creator_code:org_t)
- Institute of Electrical and Electronics Engineers (IEEE), 2021
- 2021
- Engelska.
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Ingår i: 2021 IEEE PES Innovative Smart Grid Technologies - Asia, ISGT Asia 2021. - : Institute of Electrical and Electronics Engineers (IEEE). - 9781665433396
- Relaterad länk:
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https://ieeexplore.i...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Compared to the wind farm itself, wind farm transformers are often oversized with regard to their capacity and lifetime. One of the reasons is that power transformers are normally sized at planning stage according to their rated power limits instead of their thermal limits. The thermal limits are usually considered only in operation. In this paper, a new method is proposed to take thermal limits into account and size the wind farm transformer at planning stage based on the expected life of the transformer insulation. An analytical model of wind turbine wakes loss is combined with the transformer thermal model to calculate the expected lifetime of the transformer insulation more accurately. Different from the previous approaches, the proposed method considers both the wake effect and the time-varying ambient temperature. Results show that compared to using the constant temperature and predicted power output without wake loss consideration, the expected lifetime of transformer insulation evaluated after involving these two factors is closer to the result evaluated based on the measured wind power.
Ämnesord
- NATURVETENSKAP -- Data- och informationsvetenskap -- Programvaruteknik (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences -- Software Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- ambient temperature
- transformer size
- wake effect
- wind power
- Electric power system interconnection
- Electric utilities
- Power transformers
- Temperature
- Thermal insulation
- Wakes
- Expected lifetime
- Planning stages
- Power limit
- Thermal limits
- Thermal winds
- Transformer insulation
- Wake loss
- Wind farm
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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