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    A feasibility study into prognostics for the main bearing of a wind turbine


    Butler, S. and O'Connor, F. and Farran, D. and Ringwood, John (2012) A feasibility study into prognostics for the main bearing of a wind turbine. Proceedings of the IEEE Conference on Control Applications (CCA), Dubrovnik. pp. 1092-1097.

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    Abstract

    Maintenance for wind turbines, particularly offshore turbines, presents a significant cost component to wind farm operators. The main bearing, which supports the lowspeed shaft, is one of the major wind turbine system components. Since maintenance is confined to suitable weather windows, which are unpredictable, there is a need for decision support tools to ensure that maintenance is carried out in a timely way, but also at minimum cost and with minimum turbine downtime. This paper presents a methodology for the estimation of the remaining useful life (RUL) of the main bearing for a commercial wind turbine. A residual model is used to highlight potentially faulty behaviour, which is then post processed to provide a suitable signal for extrapolation using particle filters. The RUL is then effectively specified as a probability distribution which narrows as the failure point is approached, providing an estimate of RUL and a confidence measure. Our results suggest that RULs beyond 30 days can be reasonably estimated.

    Item Type: Article
    Keywords: feasibility study; prognostics; main bearing; wind turbine;
    Academic Unit: Faculty of Science and Engineering > Electronic Engineering
    Item ID: 6870
    Depositing User: Professor John Ringwood
    Date Deposited: 20 Jan 2016 11:00
    Journal or Publication Title: Proceedings of the IEEE Conference on Control Applications (CCA), Dubrovnik
    Publisher: IEEE
    Refereed: Yes
    URI:

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