Micro-Siting of Wind Turbine in Complex Terrain: Simplified Fatigue Life Prediction of Main Bearing in Direct Drive Wind Turbines
Micro-Siting of Wind Turbine in Complex Terrain: Simplified Fatigue Life Prediction of Main Bearing in Direct Drive Wind Turbines
复制标题
复杂地形中风力发电机的微观选址：直驱风力发电机主轴承的简化疲劳寿命预测
DOI：
10.1260/0309-524x.39.4.349
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
T. Uchida
中科院分区：
文献类型：
--
作者：
F. Watanabe;T. Uchida
在日本，在2004年至2012年期间，已经记录了1,516起风力涡轮机事故，其中84％用于复杂地形的涡轮机。最长的停机时间与对主轴或轴承的损坏有关，平均停机时间为5.7个月。在复杂的地形上进行仔细的微介场可以防止发生这些事故。该论文的目的是提供一个中间步骤，使顾问，开发人员和风电场所有者能够在制造商的负载模拟之前进一步评估风力涡轮机在复杂地形中的微介场。作者开发了一种简化的方法，可以预测直接驱动风力涡轮机中主后轴承的疲劳寿命。该方法使用Hub-Height 10分钟风数据作为输入。实际事故的验证表明，与实际寿命的12。7年相比，预测寿命的12。0年的验证实际上是良好的一致性。该方法还用于量化减少效果。拟议的缩减将预测的寿命提高到了35.5年，而风速相对较小的方向只有1％的频率分布。通过提出的方法，可以布局涡轮机，其中主后轴承的疲劳寿命比其设计寿命更长。该方法还可以应用于现有的涡轮机，以发现需要仔细维护的涡轮机，并考虑在轴承上安装条件监控系统。
In Japan, 1,516 wind turbine accidents have been recorded between year 2004 and 2012, and 84% of them were for turbines in complex terrains. The longest downtime was associated with damage to main shafts or bearings with an average downtime of 5.7 months. Careful micro-siting in complex terrains can prevent these accidents from happening. The objective of the paper is to provide an intermediate step that allows consultants, developers, and wind farm owners to further evaluate micro-siting of wind turbines in complex terrains, prior to load simulations by manufacturers. The author developed a simplified method to predict fatigue life of a main rear bearing in direct drive wind turbines. The method uses hub-height 10 minutes wind data as an input. The validation with an actual accident showed practically good agreement of 12.0 years of the predicted life against 12.7 years of the actual life. The method was also applied to quantify the effect of a curtailment. The proposed curtailment increased the predicted life to 35.5 years with a relatively small range of wind speed at a direction of only 1 % frequency distribution. With the proposed method, it is possible to layout turbines where fatigue life of a main rear bearing is longer than its design life. The method can also be applied to existing turbines in order to spot turbines that require careful maintenance, and to consider an installation of condition monitoring system on a bearing.
影响因子：
0.8
作者：
T. Uchida;Y. Ohya
通讯作者：
T. Uchida;Y. Ohya