可再生能源2024，Vol.42Issue(9)：1198-1204,7.
环境温度和来流双重作用下的风力机性能
The performance for wind turbine under the dual effects of ambient temperature and incoming currents
摘要
Abstract
Taking the existing wind turbine pitch control system as the research object,the impeller aerodynamic test with variable incoming flow and angle of attack was carried out,and the fluid-structure coupling calculation was completed by selecting the Fluent module and Transient Structural module in the workbench 2021 platform.The results show that:the maximum error of the power and lift coefficient of the model and test within the test range is 3.7%,5.8%,and the average error is 2.2%,3.4%,and the maximum power of the impeller in the rated wind speed of 10 m/s is 2.5 kW,and the lift coefficient of the angle of attack of 14°is the maximum of 1.05.The incoming wind speed has a more obvious effect on the strength of the vortex in the wake area,and the higher the incoming wind speed,the higher the surface pressure on the blades at the same position coordinates.The higher the incoming wind speed,the higher the surface pressure of the blade in the same position coordinate,the smaller the velocity attenuation of the impeller tail,and the maximum stress and deformation suffered by the blade is proportional to the incoming wind speed;the lower the ambient temperature,the higher the surface pressure of the blade in the same position coordinate,and the maximum stress and deformation suffered by the blade is inversely proportional to the ambient temperature,and the ambient temperature is in the range of-20～20℃,and the maximum stress and deformation caused by the temperature are 1.45% and 2.37%,the results of the study are of guiding significance for the operation of wind turbines in harsh environments.关键词
风力机/环境温度/振动/试验/流固耦合Key words
wind turbines/ambient temperature/vibration/testing/fluid-solid coupling分类
能源科技引用本文复制引用
任小勇,李玉军,刘艳峰..环境温度和来流双重作用下的风力机性能[J].可再生能源,2024,42(9):1198-1204,7.基金项目
甘肃省教育厅高等学校创新基金项目(2022B-478). （2022B-478）
