一种同杆架设多回线路简化零序互感计算方法  

Calculation of zero-sequence mutual inductance for multi-circuit parallel transmission line

作　　者：许扬[1,2] 陆于平[1] 袁宇波[2] 

机构地区：[1]东南大学电气工程学院,江苏南京210096 [2]江苏省电力公司电力科学研究院,江苏南京210036

出　　处：《电力自动化设备》2013年第6期94-99,共6页Electric Power Automation Equipment

基　　金：国家自然科学基金资助项目(50977012)~~

摘　　要：提出一种同杆架设多回线零序互感计算方法,指出线路的零序互感矩阵是一组独立的参数,线路不同运行方式下的零序参数可根据这些独立参数,由矩阵变换的方法计算得到。该方法不需要重复的试验实测,极大简化了零序互感参数的获取过程,提高了工作效率。同杆4回线路实际现场测试实例结果验证了该方法是正确的,且具有较高的精度。A method for calculating the zero-sequence mutual inductance of multi-circuit parallel transmission line on the same tower is proposed.It is pointed out that,the zero-sequence mutual inductance matrix is a set of independent parameters,based on which,the zero-sequence parameters of transmission line in different operation modes can be deduced by matrix transformation.Without the repeating experimental measurement,the proposed method simplifies significantly the acquisition of zero-sequence mutual inductance,which improves the work efficiency.Results of field test for a four-circuit parallel transmission line show its correctness and accuracy.

关 键 词：同杆多回线路 零序互感 检修方式 线路 矩阵变换 继电保护 接地 

分 类 号：TM77[电气工程—电力系统及自动化]