Structural Health Monitoring of Multi-MW-Scale Wind Turbines by Non-contact Optical Measurement Techniques: An Application on a 2.5-MW Wind Turbine

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dc.contributor.authorOzbek, Muammer
dc.contributor.authorRixen, Daniel J.
dc.date.accessioned2024-07-18T20:40:05Z
dc.date.available2024-07-18T20:40:05Z
dc.date.issued2015
dc.departmentİstanbul Bilgi Üniversitesien_US
dc.descriptionInternational Conference on Energy and Management -- JUN 05-07, 2014 -- Istanbul Bilgi University, TURKEYen_US
dc.description.abstractOptical measurement systems utilizing photogrammetry and/or laser interferometry are introduced as cost-efficient alternatives to the conventional wind turbine/farm health-monitoring systems that are currently in use. The proposed techniques are proven to provide an accurate measurement of the dynamic behavior of a 2.5-MW, 80-m-diameter wind turbine. Several measurements are taken on the test turbine by using four CCD cameras and one laser vibrometer, and the response of the turbine is monitored from a distance of 220 m. The results of the infield tests show that photogrammetry (also can be called as computer vision technique) enables the 3-D deformations of the rotor to be measured at 33 different points simultaneously with an average accuracy of +/- 25 mm while the turbine is rotating. Several important turbine modes can also be extracted from the recorded data. Similarly, laser interferometry (used for the parked turbine) provides very valuable information on the dynamic properties of the turbine structure. Twelve different turbine modes can be identified from the obtained response data. The measurements enable the detection of even very small parameter variations that can be encountered due to the changes in operation conditions. Optical measurement systems are very easily applied on an existing turbine since they do not require any cable installations for power supply and data transfer in the structure. Placement of some reflective stickers on the blades is the only preparation that is necessary and can be completed within a few hours for a large-scale commercial wind turbine. Since all the measurement systems are located on the ground, a possible problem can be detected and solved easily. Optical measurement systems, which consist of several CCD cameras and/or one laser vibrometer, can be used for monitoring several turbines, which enables the monitoring costs of the wind farm to reduce significantly.en_US
dc.description.sponsorshipIstanbul Bilgi Univ Dept Energy Systems Engnen_US
dc.identifier.doi10.1007/978-3-319-16024-5_12
dc.identifier.endpage136en_US
dc.identifier.isbn978-3-319-16024-5
dc.identifier.isbn978-3-319-16023-8
dc.identifier.startpage125en_US
dc.identifier.urihttps://doi.org/10.1007/978-3-319-16024-5_12
dc.identifier.urihttps://hdl.handle.net/11411/6975
dc.identifier.wosWOS:000380565300012en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherSpringer Int Publishing Agen_US
dc.relation.ispartofEnergy Systems and Managementen_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectGpsen_US
dc.subjectDisplacementsen_US
dc.titleStructural Health Monitoring of Multi-MW-Scale Wind Turbines by Non-contact Optical Measurement Techniques: An Application on a 2.5-MW Wind Turbineen_US
dc.typeConference Objecten_US

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