高压直流换流站阀厅空气净距计算研究

Study on Air Clearance Calculation of HVDC Converter Station’s Valve Hall

采用g参数法计算得到的最小空气净距仅是某一特定气象条件下的值,而阀厅受到空调系统调节作用的影响,温度和湿度变化多样,必然存在某种环境条件下的最小空气净距是最大的。通过对不同海拔高度下,阀厅处于不同环境条件下的最小空气净距进行计算,得到最小空气净距的最大值及其对应的阀厅环境条件,最终将该环境条件作为整个阀厅设计时最小空气净距计算的输入条件,为工程上阀厅空气净距计算提供环境条件参考。

As the minimum air clearance calculated by g-parameter method is the valid value only under the specific weather conditions,while temperature and humidity in the valve hall is variety because of the influence of the air conditioning system’s adjustment,there must be a certain environmental condition in which the value of the minimum air clearance is the biggest of all.This paper calculated the minimum air clearance values under different altitude and different meteorological parameters in valve hall,obtaining the maximum value of the minimum air clearance values and its corresponding environmental condition of valve hall,so that this environmental condition was used as the input condition of minimum air clearance calculation of whole valve hall design,which provides the environmental condition references for the valve hall air clearance calculation in project.