Periodic stability analysis of wind turbines operating in turbulent wind conditions

Riva, Riccardo; Cacciola, Stefano; Bottasso, Carlo Luigi

doi:10.5194/wes-1-177-2016

Articles | Volume 1, issue 2

https://doi.org/10.5194/wes-1-177-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/wes-1-177-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 1, issue 2

Research article

|

20 Oct 2016

Research article |

| 20 Oct 2016

Periodic stability analysis of wind turbines operating in turbulent wind conditions

Riccardo Riva, Stefano Cacciola, and Carlo Luigi Bottasso

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Short summary

This paper presents a method to assess the stability of a wind turbine. The proposed approach uses the recorded time history of the system response and fits to it a periodic reduced-order model that can handle stochastic disturbances. Stability is computed by using Floquet theory on the reduced-order model. Since the method only uses response data, it is applicable to any simulation model as well as to experimental test data. The method is compared to the well-known operational modal analysis.