引用本文: | 许 扬,陆于平,袁宇波.一种同杆架设多回线路简化零序互感计算方法[J].电力自动化设备,2013,33(6): |
| XU Yang,LU Yuping,YUAN Yubo.Calculation of zero-sequence mutual inductance for multi-circuit parallel transmission line[J].Electric Power Automation Equipment,2013,33(6): |
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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。 |
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 |
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基金项目:国家自然科学基金资助项目(50977012) |
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Calculation of zero-sequence mutual inductance for multi-circuit parallel transmission line |
XU Yang1,2, LU Yuping1, YUAN Yubo2
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1.School of Electrical Engineering,Southeast University,Nanjing 210096,China;2.Electric Power Research Institute of Jiangsu Electric Power Company,Nanjing 210036,China
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Abstract: |
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. |
Key words: multi-circuit parallel transmission line zero-sequence mutual inductance repair mode electric lines matrix transformation relay protection electric grounding |