Risk analysis and countermeasures of wind turbine blade icing

doi:10.16265/j.cnki.issn1003-3033.2024.S1.0117

Abstract

Abstract:

In order to promote the safe operation and safety management of wind turbines in icing areas during winter under the new situation, the safety risk of wind turbine falling ice, equipment operation risk, and power supply risk were analyzed, and they are the most serious risks of blade icing. Based on these risks, a comprehensive ice monitoring method based on the combination of blade ice thickness monitoring method and wind turbine operation data monitoring method was proposed, and the safe operation of the wind turbine was classified. This article elaborated on the design and construction process of the first composite coating anti-icing technology scheme for large-scale in-service wind turbines in China. The results indicate that the composite coating anti-icing technology solution can effectively solve the problem of wind turbine icing and can provide a reference for similar engineering projects.

Key words: wind turbine, blades, icing, monitoring, anti-icing technology

CLC Number:

X934

LI Cunyi, ZHANG Bo, FAN Xiaoxu. Risk analysis and countermeasures of wind turbine blade icing[J]. China Safety Science Journal, 2024, 34(S1): 199-204.

Figures/Tables 7

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覆冰等级	覆冰厚度/ mm	风能利用系数偏差率/%	状态描述
1	0	[0,5)	机组无覆冰或覆冰对机组正常发电影响非常小;覆冰对机组设备几乎没有或非常低的潜在危害
2	[0,1)	[5,10)	机组覆冰程度较低或覆冰对机组正常发电影响较小;覆冰可能对机组设备造成一些潜在危害,但在正常条件下,大概率不会对设备造成明显的损坏
3	[1,5)	[10,40)	机组覆冰程度中等或覆冰对机组正常发电影响较大;长期运行覆冰可能对机组设备造成一定的损坏
4	[5,10)	[40,70)	机组覆冰严重或覆冰对机组正常发电影响很大;长期运行覆冰可能对机组设备造成重大的损坏
5	[10,∞)	[70,100]	机组覆冰非常严重或覆冰对机组正常发电影响非常大;长期运行覆冰可能对机组设备产生特别重大的影响