NDLI: Economic evaluation of maintenance strategies for wind turbines: a stochastic analysis

Content Provider	IET Digital Library
Author	Kerres, Bertrand Fischer, Katharina Madlener, Reinhard
Abstract	The authors develop a stochastic model for assessing the life-cycle cost and availability of wind turbines resulting from different maintenance scenarios, with the objective to identify the most cost-effective maintenance strategy. Using field-data-based reliability models, the wind turbine – in terms of reliability – is modelled as a serial connection of the most critical components. Both direct cost for spare parts, labour and access to the turbine, as well as indirect cost from production losses are explicitly taken into account. The model is applied to the case of a Vestas V44–600 kW wind turbine. Results of a reliability-centred maintenance analysis of this wind turbine are used to select the most critical wind turbine components and to identify possible maintenance scenarios. This study reveals that corrective maintenance is the most cost-effective maintenance strategy for the gearbox and the generator of the V44 turbine, while the cost benefit of condition-based maintenance using online condition-monitoring systems increases with higher electricity price, turbine capacity and remoteness of sites.
Starting Page	766
Ending Page	774
Page Count	9
ISSN	17521416
Volume Number	9
e-ISSN	17521424
Issue Number	Issue 7, Sep (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rpg/9/7
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2014.0260
Journal	IET Renewable Power Generation
Publisher Date	2015-04-16
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Condition Monitoring Condition-based Maintenance Cost Effective Maintenance Strategy Costing Critical Wind Turbine Component Economic Evaluation Electricity Price Field Data-based Reliability Model Gearbox Life Cycle Costing Lifecycle Cost Assessment Maintenance Engineering Online Condition Monitoring System Power 600 KW Power System Economics Power System Managemen Power System Operation Power System Reliability Production Loss Reliability Reliability Centred Maintenance Analysis Serial Connection Stochastic Model Turbine Capacity Vestas V44 Wind Turbine Wind Power Plant Wind Turbine
Content Type	Text
Resource Type	Article
Subject	Renewable Energy, Sustainability and the Environment

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2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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