Abstract

In the presented paper a thermal network approach was proposed for a quick and accurate study of the thermal performance of two interconnected and unsymmetrically energized switchgears. The method base on the full computational fluid dynamics (CFD) simulation of a single standalone switchgear which was used to provide unknown input parameters for a constructed thermal network. Next, a thermal network was compared with CFD simulation results to confirm the correctness of the network setup. Finally the network was used to build a model of two adjacent switchgears which was verified by performed heat run test. As a result of the studies it was found that proposed thermal network approach can be successfully applied for a quick and accurate study of a multiple connected switchgear systems.

摘要

在本文中，提出了一种热网络方法来快速而准确地研究两个互连且不对称通电的开关设备的热性能。该方法基于单个独立开关柜的完整计算流体动力学（CFD）仿真，该开关柜用于为构造的热网络提供未知的输入参数。接下来，将热网络与CFD仿真结果进行比较，以确认网络设置的正确性。最后，该网络用于建立两个相邻开关柜的模型，并通过进行的热运行测试进行了验证。研究的结果发现，所提出的热网络方法可以成功地用于对多个连接的开关设备系统进行快速而准确的研究。