同杆双回路不同换位下模量分析  

MODE ANALYSIS OF DIFFERENT TRANSPORTED DOUBLE CIRCUIT ON SAME TOWER

作　　者：钱鑫[1] 施围[1] 

机构地区：[1]西安交通大学电气工程学院,陕西省西安市710049

出　　处：《电网技术》2001年第8期24-27,共4页Power System Technology

摘　　要：提出一种求解不同换位方式下同杆双回路相模阻抗变换方法，并求出了３种常见换位方式下的阻抗矩阵和转换矩阵，转换矩阵中不含复数元素及阻抗矩阵完全对角化的特点，为新型同杆双回路故障定位和选相保护提供了理论基础。电磁暂态（ＥＭＴＰ）计算验证了该方法的正确性。A new transformation method of solving phasor- mode impedance of double circuits on same tower with differ- ent transposition is presented. The impedance matrix and transformation matrix corresponding to three common ways of transposition are obtained. The transformation matrix does not contain complex element and is fully diagonalized. There- fore, it can provide theoretical basis for fault location and phase selective protection of new type of double circuits on same tower. The correctness of this method is validated by EMTP.

关 键 词：同杆双回路 相模变换 电磁暂态计算 输电线路 

分 类 号：TM726[电气工程—电力系统及自动化]