【摘要】 提出了一种接地网不等电位模型的数值计算方法，即考虑接地网导体内阻所引起的压降。该方法基于场路结合的思想形成以接地网导体离散点上的电位为未知量的方程组，利用电路中的节点电压法和电流场导电媒质中导体间的互阻关系形成方程，适用于多层大地模型中接地网的计算，并适用于具有悬浮电极的接地网计算。给出了接地网按等位和不等位模型计算结果的分析与比较。更多还原

【Abstract】 An numerical calculation method of substation grounding grids with unequal potential model is presented in this paper, i.e., the potential drop caused by the interior resistance of conductors is taken into account. A system of equations with the potential at discretization points as unknowns is formed by a field circuit coupling theory. The system is derived based on the nodal potential analysis in the circuit theory and the definition of the mutual resistance between conductors located in conducting media in current field theory. The method presented is capable of calculating the grids in multiple layer earth structure and the grids with floating electrodes.更多还原