摘要
为了获得特高压用并联电容器在运行工况下的温度场分布,文中在ANSYS Workbench 15.0环境下采用流—固—热耦合场建立了特高压工程用并联电容器在侧卧情况下的三维温度场计算模型,在Fluent 15.0中采用有限体积法计算了该模型,获得了电容器外壳和心子的整体和各面的温度分布云图并进行了系统地比较和分析。结果表明:从总的趋势来看,电容器顶面温度高于底面和侧面温度,电容器外壳最热点位于在电容器顶面上。心子侧面温度高于顶面和底面,圆弧处温度低于元件其他部分。电容器内部最高温度近似在靠近中轴线和尾部的某处。根据计算结果可为电容器运行提供参考也为后续高压并联电容器内部最热点温度的估算提供了潜在方法。
To obtain the temperature field distribution of shunt power capacitor used to ultra-high-voltage（UHV）engineering under working condition,based on fluid-solid-thermal coupled field,a 3-D temperature field simulation model for shunt power capacitor used to UHV engineering with a lateral orientation is formulated in ANSYS Workbench 15.0. The built model is solved in Fluent 15.0 using the finite volume method. The temperature in shell and core and its surfaces are obtained and systematically compared and investigated. The results reveal that the temperature of the top surface of the shell is higher than that of the bottom and side surfaces. The hottest spot of the capacitor shell locates top surface. The temperature of the side surface of the core is higher than that of the bottom and top surfaces. The temperature around arc part of the capacitor element is lower than other parts of the element. The hottest spot of the whole capacitor approximately locates on the central axis of the capacitor and is close to end part of the capacitor. The above results can be taken as a reference to capacitor operation and provide a potential method for the hottest temperature predication for the high-voltage shunt power capacitor.
出处
《高压电器》
CAS
CSCD
北大核心
2016年第2期107-114,共8页
High Voltage Apparatus
基金
国家电网公司科技项目(GY71-14-052)资助~~
