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Risk and economic a...
Risk and economic analysis of utilizing dynamic thermal rated transformer for wind farm connection
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- Vieira Turnell, Alice (author)
- KTH,Elektroteknisk teori och konstruktion
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- Linnet, Agnes (author)
- KTH,Elektroteknisk teori och konstruktion
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- Tamadon, Nahal (author)
- KTH,Elektroteknisk teori och konstruktion
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- Morozovska, Kateryna (author)
- KTH,Elektroteknisk teori och konstruktion,RCAM
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- Hilber, Patrik (author)
- KTH,Elektroteknisk teori och konstruktion,RCAM
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- Laneryd, Tor (author)
- Corporate Research, ABB
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- Wihlen, Malin (author)
- Ellevio AB
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(creator_code:org_t)
- IEEE conference proceedings, 2018
- 2018
- English.
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In: 2018 International Conference on Probabilistic Methods Applied to Power Systems, PMAPS 2018 - Proceedings. - : IEEE conference proceedings.
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http://pmaps2018.org...
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https://kth.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Dynamic transformer rating (DTR) can be used to load power transformers above nameplate rating, while respecting contingency loading limits and ensuring an acceptable risk level. Purchase of power transformers is a major contributor for high costs of building new substations. Application of DTR allows to postpone the investment in new power transformers in old substations, thus DTR has a potential to become an economically beneficial technology. A quantitative risk and economic evaluation of DTR application is performed for a wind farm connected transformer and thus for a highly variable load scenario. The risks analyzed in this project are increased loss of insulation life and the risk of dielectric failure, based on the Arrhenius-Weibull model. A comparative net present value calculation has been performed to investigate the profitability of replacing a 19.4 MVA transformer with a 16 MVA dynamically rated transformer. The feasibility of DTR application is analyzed and a methodology is developed to support both transformer manufacturer and potential customers, such as distribution system operators, in the decision-making process of purchasing of dynamically rated transformer for wind energy applications.
Subject headings
- 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)
Keyword
- Electrical Engineering
- Elektro- och systemteknik
Publication and Content Type
- ref (subject category)
- kon (subject category)
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