【摘要】 为进一步减小电力变压器绕组集总参数等效电路频率响应计算所占内存、节省频率响应计算时间，本文将撕裂法应用于双绕组变压器等效电路的频率响应计算中。首先，根据电路模型的结构特点选取合适的撕裂节点，将电路撕裂成几个独立的子块，计算各个子块的节点导纳矩阵。其次，根据各个子块的贡献将各个节点导纳矩阵聚合成整个网络的节点导纳矩阵，推导绕组等效电路频率响应的矩阵算法。然后，利用Mulstim电路仿真软件进行仿真分析，证明本文所述方法的正确性。最后，从频率响应计算时间、存储容量两个方面对比本文所述方法与典型电路矩阵算法，验证本文所述方法的优越性。对比结果表明，本文所提撕裂法较典型的电路矩阵算法具有更快的计算效率、占用更小的存储空间，并且随着绕组线饼数的增加，其在计算效率与占用存储空间方面的优势更为显著。更多还原

【Abstract】 To further reduce the memory occupied and save calculation time of frequency response calculation of lumped parameter equivalent circuit of transformer winding, the tearing method is studied.First, according to the structural characteristics of the circuit model, the appropriate tearing nodes are selected. Second, the circuit is torn into separate networks and the nodal admittance matrices of these networks are calculated. According to the contribution of each subchain, the nodal admittance matrix of each node is aggregated into the nodal admittance matrix of the entire network, and the calculation equation of the frequency response based on tearing method is obtained. Then, Multisim circuit simulation software is used to verify the accuracy of the proposed method. Finally, the superiority of the proposed method is verified by comparison with the typical circuit matrix algorithm in terms of frequency response calculation time and storage capacity. The comparison results show that the proposed method has faster computational efficiency and less storage space than those of the typical circuit matrix algorithm.更多还原