高压直流换流阀模块散热及温度分布研究  

Research on Heat Dissipation and Temperature Distribution of HVDC Converter Valve Module

作　　者：李凯 韩坤[1,2] 黄永瑞 洪波[1,2] LI Kai;HAN Kun;HUANG Yongrui;HONG Bo(XJ Electric Co.,Ltd.,Xuchang 461000,China;XJ Group Corporation,Xuchang 461000,China)

机构地区：[1]许继电气股份有限公司,河南许昌461000 [2]许继集团有限公司,河南许昌461000

出　　处：《电工技术》2020年第9期126-129,共4页Electric Engineering

基　　金：国家电网有限公司总部科技项目资助(5200-201946091A)。

摘　　要：通过分析高压直流换流阀模块的冷却水路结构,根据传热学理论,采用数值分析法,建立冷却水路的压力计算模型和紊流散热模型,提出简化模型的条件,对串联水路阀模块的热源和散热系统热量传输进行仿真计算,得出换流阀模块稳态运行时热应力特性及温度分布。在换流阀运行试验系统开展热运行试验,测量冷却水路进出口温度和晶闸管管壳温度分布,试验结果与仿真结论一致。By analyzing the cooling waterway structure of the HVDC converter valve module,according to the heat transfer theory,the numerical analysis method was used to establish the pressure calculation model and the turbulent heat dissipation model of the cooling waterway,and the conditions for simplifying the model were proposed.The heat transfer between the heat source and the heat dissipation system of the series water valve module was simulated and calculated.The heat transfers of the heat source and the heat dissipation system of the series waterway valve module was simulated,and the thermal stress characteristics and temperature distribution of the converter valve module during steady state operation were obtained.The heat-run test was carried out in the converter valve operation test system to measure the inlet and outlet temperature of the cooling water pipe and the temperature distribution of the thyristor shell.The test results were consistent with the simulation results.

关 键 词：换流阀模块 散热 温度分布 数值模拟 热运行试验 

分 类 号：TM721.1[电气工程—电力系统及自动化]