NUMERICAL SIMULATION FOR DYNAMIC RESPONSES OF WIND TURBINE UNDER BLADE FAILURE CONDITION

Mou Zheyue; Sun Yong; Wang Ruiliang; Bai Conger; Lin Yonggang

doi:10.19912/j.0254-0096.tynxb.2023-0352

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Acta Energiae Solaris Sinica ›› 2024, Vol. 45 ›› Issue (6) : 510-517. DOI: 10.19912/j.0254-0096.tynxb.2023-0352

NUMERICAL SIMULATION FOR DYNAMIC RESPONSES OF WIND TURBINE UNDER BLADE FAILURE CONDITION

Mou Zheyue^1,2, Sun Yong^1,2, Wang Ruiliang^1,2, Bai Conger^1,2, Lin Yonggang³

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Abstract

The simulation method for dynamic responses of wind turbine under blade failure condition is investigated. The combined simulation model with air-elastic-control coupling for NREL 5 MW wind turbine is established using multi-body dynamic simulation software Simpack. The characteristics of dynamic time-history responses of wind turbine when emergency stop under blade failure condition are analyzed. On this basis, the nonlinear influence law of azimuth, failure length, wind speed, turbulence intensity, pitch rate and reaction time on the dynamic responses of wind turbine under blade failure condition are researched. An optimel shutdown scheme for generator torque reduction with rotor speed is proposed, and the effectiveness is validated through the curve of dynamic responses of wind turbine acquired by numerical simulation.

Key words

wind turbine blades / wind turbines / failure analysis / dynamic response / numerical simulation

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Mou Zheyue, Sun Yong, Wang Ruiliang, Bai Conger, Lin Yonggang. NUMERICAL SIMULATION FOR DYNAMIC RESPONSES OF WIND TURBINE UNDER BLADE FAILURE CONDITION[J]. Acta Energiae Solaris Sinica. 2024, 45(6): 510-517 https://doi.org/10.19912/j.0254-0096.tynxb.2023-0352

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