摘要
风力发电机组的单机容量随着海上风电发电需求的不断增长而增大,这会导致发电机、齿轮箱等关键部件的发热量随之增加。同时,为防止盐雾侵蚀海上风电机组机舱内重要零部件,需密闭机舱。如果不增加机舱冷却系统,机舱内较高的空气温度会增加风电机组的故障率,严重时可能导致风机停机、部件损坏等现象。本文采用FLUENT软件分析散热器不同位置下的机舱内温度场变化情况,比较不同布置方案下的散热效果,得出了最佳散热布置方式。研究表明:优化后的主动冷却器布置可提高机组冷却系统散热效果,这对海上半直驱风机的机舱冷却系统设计具有参考意义。
The single-unit capacity of wind turbines increases with the increasing demand for power generation from offshore wind turbines,resulting in an increase in the heating of key components such as generators and gearboxes. At the same time,important parts in the nacelle of offshore wind turbines need to be sealed in order to prevent salt spray corrosion. If the nacelle cooling system is not added,the higher air temperature in the nacelle will increase the failure rate of the wind turbine,and it may cause the wind turbine to stop and damage the components and other phenomena in serious cases. Using FLUENT to analyze the temperature field in the nacelle at different positions of the radiator,compare the heat dissipation effects of different arrangements and get the best heat dissipation arrangement. The research results show that the optimized arrangement of the active cooler can improve the heat dissipation effect of the cooling system of the unit,which has reference significance for the design of the nacelle cooling system of the offshore semi-direct drive wind turbine.
作者
许爽
胡双洋
李中林
马龙
XU Shuang;HU Shuangyang;LI Zhonglin;MA Long(Shanghai Electric Wind Power Group Co.,Ltd.,Shanghai 200233,China)
出处
《流体测量与控制》
2021年第2期11-14,共4页
Fluid Measurement & Control
关键词
海上风电机组
半直驱风机
机舱冷却系统
主动冷却器
布置优化
offshore wind turbine
semi-direct drive
nacelle cooling system
active cooler
layout and optimization
