Butler, Shane 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:	Publisher
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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