FAULT RATE PREDICTION MODEL OF WIND TURBINES'GEARBOX UNDER DIFFERENT OPERATION STATUS

Chen Tingji; Gui Fan; Guo Zheng; Tang Zijing; Zheng Xinyi; Song Zhe

doi:10.19912/j.0254-0096.tynxb.2021-1419

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (4) : 45-51. DOI: 10.19912/j.0254-0096.tynxb.2021-1419

FAULT RATE PREDICTION MODEL OF WIND TURBINES'GEARBOX UNDER DIFFERENT OPERATION STATUS

Chen Tingji¹, Gui Fan¹, Guo Zheng¹, Tang Zijing¹, Zheng Xinyi¹, Song Zhe²

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Abstract

Previous research on the failure rate of wind power gearbox was based on the Weibull fault distribution curve mainly consider the time factor. This paper tries to considers the actual operational status of the gearbox into the reliability model, i.e. construct a gearbox failure rate model by considering operation time （t） and status （s） together, integrated with the bathtub curve of the Weibull distribution. The reliability function, failure cumulative distribution function, failure probability density function and failure probability of a specific number of equipment at a specific time of the model are calculated under the combination of four different operating status： increase of overall failure rate, shortening of overall life, advance of failure time, acceleration of failure rate in failure period and shortening of life in failure period. The results of this paper will provide a valuable tool for wind farm gearbox inventory management and maintenance cost planning.

Key words

wind turbines / gear box / condition monitoring / fault detection / computer simulation / operation status

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Chen Tingji, Gui Fan, Guo Zheng, Tang Zijing, Zheng Xinyi, Song Zhe. FAULT RATE PREDICTION MODEL OF WIND TURBINES'GEARBOX UNDER DIFFERENT OPERATION STATUS[J]. Acta Energiae Solaris Sinica. 2023, 44(4): 45-51 https://doi.org/10.19912/j.0254-0096.tynxb.2021-1419

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