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Monitoring Wind Turbine Loading Using Power Converter Signals

Rieg, C.A.; Smith, C.J.; Crabtree, C.J.

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C.A. Rieg

C.J. Smith


The ability to detect faults and predict loads on a wind turbine drivetrain's mechanical components cost-effectively is critical to making the cost of wind energy competitive. In order to investigate whether this is possible using the readily available power converter current signals, an existing permanent magnet synchronous generator based wind energy conversion system computer model was modified to include a grid-side converter (GSC) for an improved converter model and a gearbox. The GSC maintains a constant DC link voltage via vector control. The gearbox was modelled as a 3-mass model to allow faults to be included. Gusts and gearbox faults were introduced to investigate the ability of the machine side converter (MSC) current (I q) to detect and quantify loads on the mechanical components. In this model, gearbox faults were not detectable in the I q signal due to shaft stiffness and damping interaction. However, a model that predicts the load change on mechanical wind turbine components using I q was developed and verified using synthetic and real wind data.


Rieg, C., Smith, C., & Crabtree, C. (2016). Monitoring Wind Turbine Loading Using Power Converter Signals. Journal of Physics: Conference Series, 749(1), Article 012018.

Journal Article Type Article
Acceptance Date Aug 10, 2016
Online Publication Date Sep 14, 2016
Publication Date Sep 14, 2016
Deposit Date Aug 11, 2016
Publicly Available Date Aug 15, 2016
Journal Journal of Physics: Conference Series
Print ISSN 1742-6588
Electronic ISSN 1742-6596
Publisher IOP Publishing
Peer Reviewed Peer Reviewed
Volume 749
Issue 1
Article Number 012018


Accepted Journal Article (264 Kb)

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Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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