摘要
为了提供风力机风速仪测量风速的准确性,本文采用CFD方法对风速仪在不同安放位置下测量风速的准确性进行数值研究,结果表明:竖直高度上,监测风速位置接近或远离机舱均使监测风速与来流风速存在较大偏差;水平距离上,机舱两侧监测位置上的风速较高,波动小,向机舱中心越靠近,风速减小,波动增加;同时,通过在额定风速下寻优得到风速仪最佳测风位置,可减小其它来流下风速仪测量风速的偏差。
In order to provide the wind turbine anemometer to measure the accuracy of the wind speed,this paper uses the CFD method to numerically study the accuracy of the wind speed measurement at different placement positions.The results show that at the vertical height,the monitoring wind speed is close to or far from the nacelle.There is a large deviation between the monitored wind speed and the incoming wind speed;at horizontal distance,the wind speed at the monitoring position on both sides of the nacelle is higher with small fluctuation;as the approach to the center of the nacelle,the wind speed decreases,and the fluctuation increases.At the same time,by means of the rated wind speed,the best wind measurement position of the anemometer can be obtained,which can reduce the deviation of the wind speed measured by other anemometers.
作者
王晓宇
许炳坤
高鑫
赵夏青
WANG Xiao-yu;XU Bing-kun;GAO Xin;ZHAO Xia-qing(China Datang Science and Technology Research Institute Co.,Ltd.Northwest Electric Power Testand Research Institute,Xi’an,710021,China)
出处
《节能技术》
CAS
2019年第5期451-455,共5页
Energy Conservation Technology
关键词
风力机
风速仪
数值模拟
风速
准确性
wind turbine
anemometer
numerical simulation
wind speed
accuracy
作者简介
王晓宇(1992~),男,硕士,工程师,主要从事流体机械性能优化以及流场分析方面的研究。
