张北工程阀厅内直流侧启动电阻热仿真研究

Thermal Simulation Research on DC Side Start-up Resistance in the Valve Hall of Zhangbei Flexible DC Grid Project

张北工程直流电网中首次应用的直流侧启动电阻在启动时冲击能量较大、瞬时温升较高,有可能对阀厅温度场造成影响。为了验证直流侧启动电阻启动时的瞬时冲击能量对阀厅温度场的影响,建立CFD模型对直流启动电阻进行热仿真研究。模拟结果表明,阀厅温度场在直流侧启动电阻启动时的变化不影响阀厅内电气设备的安全运行。

The DC side starting resistance used for the first time in the DC grid of the Zhangbei Project has a large impact energy and a high instantaneous temperature rise during startup,which may affect the temperature field of the valve hall.In order to verify the impact of the instantaneous impact energy on the temperature field of the valve hall at the start of the DC side starting resistance,a CFD model was established to conduct a thermal simulation study on the DC starting resistance.The simulation results show that the change of the temperature field of the valve hall at the start of the DC side starting resistance does not affect the safe operation of the electrical equipment in the valve hall.