基于SCADA数据的风力发电机疲劳损伤量化分析的研究
关键词 齿轮箱 疲劳损伤 ISO标准 SCADA数据
毕业设计说明书（毕业论文）外文摘要
Title Quantitative analysis of fatigue damage based on a wind turbine’ SCADA
Abstract
With the wind turbine improving continuously, the study of its reliability on operation is more and more important. Gearbox is one of the major mechanical components of a wind turbine. Once the gearbox fails, it will lead to a long-time stop of the unit,causing great economic losses to the wind field. Though the load of gearbox is very complex, ISO 6336 has presented the calculation method of fatigue damage for wind turbine gearbox under variable load conditions. Understand the process about how to calculate fatigue damage from the standard, and analyze the loads on the generator using SCADA data of a wind turbine. The results show that the load in high stress amplitude will cause the destructive fatigue damage to wind turbine gearbox. It is also proved that, in the wind field, the high wind speed is one of the reasons that make high stress amplitude. The results of this research can be applied to the fatigue test of wind turbine gearbox, especially to the simulation of wind conditions.
Keywords Gearbox Fatigue damage ISO SCADA
目次
1 绪论 1
1.1 课题研究的背景 1
1.1.1 全球风电发展状况 1
1.1.2 我国风电发展状况 2
1.2 课题研究的意义 3
1.3 课题研究的主要内容 5
2 风力发电机组 6
2.1 风力发电机组的工作原理 6
2.2 风力发电机组的结构 6
2.3 本章小结 8
3 齿轮传动系统疲劳损伤分析 9
3.1 疲劳失效 9
3.2 疲劳载荷 10
3.2.1 循环应力 10
3.2.2 循环计数法 11
3.2.3 载荷谱编制 12
3.3 材料疲劳性能 13
3.4 疲劳损伤累积法则 14
3.5 本章小结 15
4 根据ISO 6336标准的损伤计算方法 16
4.1 关于ISO 6336标准 16
4.2 ISO 6336标准的损伤计算流程 16
4.3 应力计算 17
4.4 本章小结 19
5 风力发电机组SCADA数据分析 20
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