Investigation of wind turbine faults caused by icing in the Canadian climate

加拿大气候结冰导致风力发电机故障的调查

• 批准号: 523098-2018
• 负责人: BéginDrolet, André
• 金额: $ 1.82万
• 依托单位: Université Laval
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=644971
• 关键词: Investigation; wind; turbine; faults; caused

The presence of atmospheric icing greatly affects the performance of wind turbines mainly because**atmospheric icing alters the aerodynamic profile of the blades. Icing effects on turbines not equipped with ice**prevention systems are often longer since ice on the blades persists even though the icing event is over. The**main outcomes of icing on wind turbines are plant stoppage and/or reduce power output which can impact the**economics of a project. However, atmospheric icing can also lead to other consequences such as vibration,**noise, overload and overspeed. When overspeeding is caused by icing, stopping the turbine, thus increasing the**power losses may seem a justified action. However, some owners are concerned by the reason causing**overspeeding of the turbines especially for warranty availability issues. At times, turbine manufacturers are**trying to blame the lack of availability of some turbines on weather conditions (e.g. icing). As of now, there is**no commonly adopted methodology to ascertain the availability of turbines operated in cold climate. Capstone**Power Corporation, owner and operator of several wind farms throughout the country, is interested in**investigating the effect of icing on wind turbine behavior, particularly on the relation between icing**occurrences and overspeeding faults.

大气结冰的存在极大地影响风力涡轮机的性能，主要是因为大气结冰改变了叶片的空气动力学轮廓。未配备防冰系统的涡轮机上的结冰影响通常更长，因为即使结冰事件结束，叶片上的冰仍然存在。风力涡轮机上结冰的主要后果是发电厂停机和/或降低功率输出，这可能影响项目的经济性。然而，大气结冰也会导致其他后果，如振动、噪声、过载和过载。当超速是由结冰引起时，停止涡轮机，从而增加功率损失似乎是一个合理的行动。然而，一些业主担心导致涡轮机超速的原因，特别是保修可用性问题。有时，涡轮机制造商试图将一些涡轮机的可用性不足归咎于天气条件（例如结冰）。到目前为止，还没有普遍采用的方法来确定在寒冷气候下运行的涡轮机的可用性。Capstone** 电力公司是全国几个风力发电场的所有者和运营商，有兴趣调查结冰对风力涡轮机性能的影响，特别是结冰 ** 发生与超速故障之间的关系。