摘要
论文以800kVA深海变压器为研究对象,在漏磁分析和损耗计算的基础上,基于分布式热源计算模型,建立了油浸式变压器流场和温度场仿真模型。综合考虑环境温度、海水流速、海洋环境和变压器散热结构等因素,设置了十二种计算工况进行温度场模拟计算和变压器温升校核评估。通过对整体温度、采样点温度、热点温度、油流速度和油密度等参数的统计与分析,得出了现有深海变压器的设计和材料选择基本满足变压器设计要求,即油面温升低于60K,热点温升低于78K。论文中以工况1为例,给出了深海变压器温度场模拟计算过程;最后,在结论中总结出影响深海变压器温升的主要因素,且可用于指导变压器的设计。
This article takes an 800kVA deep-sea transformer as the research object.Based on the analysis of magnetic flux leakage and the heat source distribution model,a simulation model of the fluid field and temperature field of the oil-immersed transformer is established.Considering factors such as ambient temperature,seawater flow rate,marine environment,and heat dissipation structure of the transformer,twelve kinds of calculation conditions are set,and the calculation results in one of the conditions are given respectively.The statistics and analysis of the overall temperature,sampling point temperature,the hot spot temperature,oil flow rate,and oil density,etc.show that the design and material selection for the existing deep-sea transformers basically meet the design requirements.The rise of oil surface temperature is lower than 60 K,and the rise of hot spot temperature is lower than 78 K.Influence factors of thermal performance are summarized to guide the design of the transformer.
作者
郭宏
郭江艳
雷阳
魏华
GUO Hong;GUO Jiangyan;LEI Yang;WEI Hua(CNOOC Research Institute,Beijing 100028,China;CSIC 719th Institute,Wuhan 430000,China)
出处
《中国造船》
EI
CSCD
北大核心
2019年第A01期130-138,共9页
Shipbuilding of China
关键词
深海变压器
流体场和温度场
仿真模拟
subsea transformer
fluid field and temperature field
simulation
