摘要
采用计算流体力学(CFD)方法分别对1.5 MW风力发电机空冷系统和水冷系统进行设计研究。结果显示,在额定功率下,空气密度、外部风速及电机外壳筋条排布是影响空冷效果的关键因素。在水冷系统设计中,"管孔间隙"对水冷效果影响巨大,在间隙中填充工业导热硅胶可有效缓解其影响。最后,对空冷系统外壳筋条排布及水冷系统管路布置进行优化设计,以满足设计要求。
The design of air cooling system and water cooling system for a 1.5 MW wind turbine generator was studied respectively through computational fluid dynamics （CFD）. The results showed that air density, external wind speeds as well as the generator rib arrangement are important factors for the air cooling effect at rated power. In the design of water cooling system, it is found that the ＂hole gap＂ has tremendous impact on the water cooling effect. By filling in the gaps with industrial thermal silica, the ＂hole gap＂ effect can be effectively alleviated. Furthermore, the ribs arrangement on the shell of the generator for air cooling and piping arrangement for the water cooling are optimized to satisfy the design requirements.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2017年第3期648-654,共7页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(11402088)
新能源电力系统国家重点实验室开放基金(LAPS17007)
关键词
水冷系统
空冷系统
风力发电机
标准k-ε湍流模式
CFD
water cooling system
air cooling system
wind turbine generator
standard k-ε turbulence model
CFD
