AUTOMATED MODAL TRACKING IN A 2 MW ONSHORE WIND TURBINE

• Type: Article in International Conference Proceedings Book
• Date: 2015

Authors

Oliveira, G (Author) Other; Magalhães, F. (Author) FEUP; Cunha, A. (Author) FEUP; Caetano, E. (Author) FEUP

Conference proceedings International

Title: 6TH IOMAC: INTERNATIONAL OPERATIONAL MODAL ANALYSIS CONFERENCE PROCEEDINGS

Pages: 731-738

6th International Operational Modal Analysis Conference (IOMAC)

Gijon, SPAIN, MAY 12-14, 2015

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Other information

Authenticus ID: P-00G-CRJ

Abstract (EN): This paper presents the strategy adopted to automatically track the variation of the modal parameters of an onshore wind turbine equipped with a dynamic monitoring system in operation for more than one year. The processing is based on state-of-the art parametric operational modal analysis algorithms, such as SSI-COV, SSI-DATA and p-LSCF, that are combined with a cluster analysis that permits an automated interpretation of stabilization diagrams. The continuous tracking of natural frequencies and modal damping ratios of the wind turbine main vibration modes under distinct operating conditions permitted an accurate characterization of the influence of the wind velocity, yaw angle and rotor rotation speed on the dynamic behavior of the instrumented structure.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8