同杆4回线12序分量法

TIAN Yu; FAN Chunju; GONG Zhendong

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同杆4回线12序分量法

更新时间：2025-08-13

- 同杆4回线12序分量法
- Automation of Electric Power Systems Vol. 31, Issue 21, Pages: 35-39(2007)
- 作者机构：
  
  上海交通大学电子信息与电气工程学院,上海市,200240
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2007
- 稿件说明：
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TIAN Yu, FAN Chunju, GONG Zhendong. [J]. Automation of electric power systems, 2007, 31(21): 35-39.
DOI：

TIAN Yu, FAN Chunju, GONG Zhendong. [J]. Automation of electric power systems, 2007, 31(21): 35-39. DOI：

摘要

同杆4回线在节省线路占地的同时，带来了测距和继电保护等方面的困难。文中针对同杆4回线难以解决的线间耦合问题进行了大量研究。使用矩阵变换将耦合的线路进行解耦，形成相互独立的12序分量。详细研究了这12序分量的特点，并给出了线路发生故障时的各序分量图。12序分量法不仅可以成为同杆4回线故障计算的基本方法，还为同杆4回线的测距和保护打下了理论基础。EMTP仿真结果表明了12序分量法的精确性。

Abstract

Four-parallel transmission lines reduce the required space of right-of way of transmission. However， technical difficulties，such as fault location and relay protection， occur in practice. Twelve-sequence component method is introduced to decouple mutual electromagnetic effect between four-parallel transmission lines. The twelve-sequence components are independent from each other. The characteristics of the twelve-sequence components are studied and the related sequence networks are introduced. The twelve-sequence component method can not only be the basic method of the fault analysis but also the basic theory of the fault location and relay protection for the four-parallel lines. Large amount of simulation results of EMTP simulation demonstrate that the twelve-sequence component method is correct and valid for fault analysis.

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