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Modelling of Recurr...
Modelling of Recurrent Circuit Breaker Failures with Regression Models for Count Data
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- Jürgensen, Jan Henning, 1987- (författare)
- KTH,Elektroteknisk teori och konstruktion,Reliability Centred Asset Management (RCAM) Group
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- Nordström, Lars (författare)
- KTH,Elektroteknisk teori och konstruktion,Power system operation and control
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- Hilber, Patrik (författare)
- KTH,Elektroteknisk teori och konstruktion,Reliability Centred Asset Management (RCAM) Group
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- Brodersson, Anna Lilly (författare)
- Vattenfall Eldistribution AB
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- Andreasson, Elin (författare)
- Vattenfall Eldistribution AB
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- Goel, Lalit (författare)
- Nanyang Technological University Singapore
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(creator_code:org_t)
- 2018
- 2018
- Engelska.
- Relaterad länk:
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http://pmaps2018.org...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- High voltage circuit breaker (CB) are of fundamental importance to protect and operate the power system. To improve their performance and to better predict failures, it is necessary to understand the effect of covariates such as preventive maintenance, age, voltage level, and the CB type. A straightforward approach is to investigate recurrent failures with regression models for count data. In this paper, several regression models are developed to estimate the impact of the aforementioned covariates to predict the recurrence of failures. The results show that age has a significant and negative impact, preventive maintenance before the first failure has a positive impact, and that the voltage level has a negative impact. Moreover, the Poisson, Negative Binomial, and zero-inflated models are compared. The comparison shows that the Negative Binomial model has the best fit to the studied recurrent failure data.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- Asset management
- circuit breaker reliability
- rate of occurrence of failures
- Poisson regression
- preventive maintenance
- Electrical Engineering
- Elektro- och systemteknik
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)