发、变电站不规则接地网接地参数计算方法研究

Calculation Method of Grounding Parameters of Irregular Grounding Network for Power Plant and Substation

对于发、变电站不规则接地网的接地参数计算方法,目前采用的主要方法中解析公式计算方法的计算结果不够精确,数值计算中又需要手动输入大量不规则导体的数据信息,费时费力。以数值计算方法为基础,建立了不规则接地网的不等电位模型,并结合AutoCAD软件绘制了不规则接地网,利用数据提取功能,将导体信息导入到所编程序中,从而快速准确地计算不规则接地网的接地参数。

Currently the analytic formula calculation is one of the main methods for calculating the grounding parameters of irregular grounding network for power plant and substation,but the results are not accurate,and the labor/time-consuming manual input of enormous data information of irregular conductors is required in the numerical calculation.This paper established unequal potential model of irregular grounding network on the basis of the numerical method,and imported conductor information to the programm in this paper in combination with the irregular grounding network drawing by AutoCAD,and by means of the data extraction function,so as to rapidly and accurately calculate the grounding parameters of irregular grounding network.