摘要
风场尾流效应不但会造成发电量损失,也会引起湍流增加进而对机组疲劳/极限寿命造成很大的影响。结合现场风场案例,本文在传统的尾流计算Jensen模型基础上,引入偏航对尾流扩散、强度和范围的影响,建立了新的偏航尾流模型,大幅度提高尾流预测的精度。最后,通过主动尾流控制,可以减小尾流影响,提升风场发电能力2-5%。
The wind field wake effects not only cause power generation loss,but also increase turbulence which has significant influence on fatigue or limit load of wind turbine.In this paper,combines practical wind field cases,based on traditional Jensen wake model,and introduced the effects of yaw on wake expansion,intensity and scope,the new yaw wake model is established,which can increase the accuracy of wake prediction.Finally,the active wake control is used to reduce the wake influences,in order to promote the power generation capacity of wind filed up to 2-5%.
作者
焦鑫
陈为国
张志军
沈明强
张宇
JIAO Xin;CHEN Wei-guo;ZHANG Zhi-jun;SHEN Ming-qiang;ZHANG Yu(Envision Energy(Jiangsu)Co.,Ltd.,Shanghai 200051 China;Jiangsu Clean Energy Branch,Huaneng Power International,INC.Nanjing 210008 China)
出处
《自动化技术与应用》
2020年第5期110-114,共5页
Techniques of Automation and Applications
基金
中国华能集团科技项目(编号HNKJ16-H)。