Dynamic modeling and stability analysis of a dual-rotor wind turbine

Oliver T. Filsoof, Morten H. Hansen, Anders Yde, Xuping Zhang

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

Various modal analysis methods are available for single-rotor wind turbines, but there is no report and guidance on the modal property analysis of multi-rotor wind turbines. This paper presents a dynamic modeling method for the modal response analysis of a wind turbine with two three-bladed isotropic rotors. The equations of motion are derived using Lagrange's equations and are further linearized at a steady-state equilibrium. To avoid using Floquet Theory to remove the periodic coefficients, multi-blade coordinates are utilized. Comparison between the numerical simulations and a high-fidelity model in HAWC2 shows agreements in terms of modal frequencies. The results shows that the whirling modes splits into symmetric and asymmetric rotor modes.

Original languageEnglish
Title of host publication14th International Conference on Multibody Systems, Nonlinear Dynamics, and Control
Number of pages7
Volume6
PublisherAmerican Society of Mechanical Engineers
Publication date1. Jan 2018
ISBN (Electronic)9780791851838
DOIs
Publication statusPublished - 1. Jan 2018
EventASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2018 - Quebec City, Canada
Duration: 26. Aug 201829. Aug 2018

Conference

ConferenceASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2018
CountryCanada
CityQuebec City
Period26/08/201829/08/2018
SponsorComputers and Information in Engineering Division, Design Engineering Division

Fingerprint

Wind turbines
Rotors
Modal analysis
Equations of motion
Computer simulation

Cite this

Filsoof, O. T., Hansen, M. H., Yde, A., & Zhang, X. (2018). Dynamic modeling and stability analysis of a dual-rotor wind turbine. In 14th International Conference on Multibody Systems, Nonlinear Dynamics, and Control (Vol. 6). American Society of Mechanical Engineers. https://doi.org/10.1115/DETC2018-86142
Filsoof, Oliver T. ; Hansen, Morten H. ; Yde, Anders ; Zhang, Xuping. / Dynamic modeling and stability analysis of a dual-rotor wind turbine. 14th International Conference on Multibody Systems, Nonlinear Dynamics, and Control. Vol. 6 American Society of Mechanical Engineers, 2018.
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Filsoof, OT, Hansen, MH, Yde, A & Zhang, X 2018, Dynamic modeling and stability analysis of a dual-rotor wind turbine. in 14th International Conference on Multibody Systems, Nonlinear Dynamics, and Control. vol. 6, American Society of Mechanical Engineers, ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2018, Quebec City, Canada, 26/08/2018. https://doi.org/10.1115/DETC2018-86142

Dynamic modeling and stability analysis of a dual-rotor wind turbine. / Filsoof, Oliver T.; Hansen, Morten H.; Yde, Anders; Zhang, Xuping.

14th International Conference on Multibody Systems, Nonlinear Dynamics, and Control. Vol. 6 American Society of Mechanical Engineers, 2018.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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T1 - Dynamic modeling and stability analysis of a dual-rotor wind turbine

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AU - Hansen, Morten H.

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AU - Zhang, Xuping

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N2 - Various modal analysis methods are available for single-rotor wind turbines, but there is no report and guidance on the modal property analysis of multi-rotor wind turbines. This paper presents a dynamic modeling method for the modal response analysis of a wind turbine with two three-bladed isotropic rotors. The equations of motion are derived using Lagrange's equations and are further linearized at a steady-state equilibrium. To avoid using Floquet Theory to remove the periodic coefficients, multi-blade coordinates are utilized. Comparison between the numerical simulations and a high-fidelity model in HAWC2 shows agreements in terms of modal frequencies. The results shows that the whirling modes splits into symmetric and asymmetric rotor modes.

AB - Various modal analysis methods are available for single-rotor wind turbines, but there is no report and guidance on the modal property analysis of multi-rotor wind turbines. This paper presents a dynamic modeling method for the modal response analysis of a wind turbine with two three-bladed isotropic rotors. The equations of motion are derived using Lagrange's equations and are further linearized at a steady-state equilibrium. To avoid using Floquet Theory to remove the periodic coefficients, multi-blade coordinates are utilized. Comparison between the numerical simulations and a high-fidelity model in HAWC2 shows agreements in terms of modal frequencies. The results shows that the whirling modes splits into symmetric and asymmetric rotor modes.

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BT - 14th International Conference on Multibody Systems, Nonlinear Dynamics, and Control

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Filsoof OT, Hansen MH, Yde A, Zhang X. Dynamic modeling and stability analysis of a dual-rotor wind turbine. In 14th International Conference on Multibody Systems, Nonlinear Dynamics, and Control. Vol. 6. American Society of Mechanical Engineers. 2018 https://doi.org/10.1115/DETC2018-86142