输电线路换位对电磁瞬变现象的影响

2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America Pub Date : 2006-08-01 DOI:10.1109/TDCLA.2006.311638

A. Elguera, M. Tavares

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引用次数: 5

摘要

本文对传输线换位进行了分析，聚焦了10khz范围内的电磁瞬变现象。为了减少基频处的相位不平衡，采用了换位法。换位段必须远低于波长的1/4，这意味着对于60 Hz，远低于1250 km。通常使用100公里的路段。对于基频，将线路视为理想的转置线是正确的。在本文中，将分析在所有频率范围内，特别是在处理高达10khz的开关瞬态时，将传输线视为理想转置的误差。对考虑理想转置和考虑实际转置路段的输电线路进行了相位不平衡的理论分析。适当地表示了传输线参数的频率依赖性

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Influence of Transmission Line Transposition in Electromagnetic Transients Phenomena

In this paper transmission line transposition is analyzed focusing electromagnetic transient phenomena in the range up to 10 kHz. Line transposition is implemented to decrease phase unbalances at fundamental frequency. The transposition section must be much lower than 1/4 of wave-length, which means for 60 Hz, much lower than 1250 km. normally a 100-km section is used. For fundamental frequency it is then correct to consider the line as an ideally transposed line. In the present paper it will be analyzed the error of treating transmission line as ideally transposed for all frequency ranges, specifically when dealing with switching transients up to 10 kHz. A theoretical analysis is performed identifying the unbalances between the phases considering the transmission line ideally transposed and considering transmission line with actual transposition sections. The frequency dependence of transmission line parameters was properly represented

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2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America

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