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Temperature Conside...
Temperature Considerations for Online Health Monitoring of DC-Link Capacitors in Modular Multilevel Converters
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- Asoodar, Mohsen (författare)
- KTH,Elkraftteknik
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- Nahalparvari, Mehrdad (författare)
- KTH,Elkraftteknik
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- Danielsson, Christer (författare)
- Hitachi ABB Power Grids, Master Ahls Gata 16, S-72212 Vasteras, Sweden
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visa fler...
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- Nee, Hans-Peter, 1963- (författare)
- KTH,Elkraftteknik
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visa färre...
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(creator_code:org_t)
- Institute of Electrical and Electronics Engineers Inc. 2021
- 2021
- Engelska.
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Ingår i: 2021 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe. - : Institute of Electrical and Electronics Engineers Inc..
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- In this paper, the effect of temperature on online heath monitoring of dc capacitors in modular multilevel converters (MMCs) is studied. The submodule capacitance value is considered as the main indicator of health. Both self heating and ambient temperature are considered as sources of temperature variation. The study is conducted on a single phase MMC with full-bridge submodules. However, a similar analysis can be used for half-bridge MMCs and multiphase MMCs as well. The thermal behaviour of the capacitors is explained analytically and simulated using a simplified Cauer model. The effect of temperature on the estimated capacitance values is shown, and a method for reducing this effect is proposed. The results are verified using simulations in MATLAB/Simulink.
Ämnesord
- 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
- Capacitors
- Cascaded H-Bridge
- Condition Monitoring
- Modular Multilevel Converters (MMC)
- Reliability
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)