行波差动保护线路参数不确定性影响

ZHANG Wujun; HE Benteng; ZHANG Bo

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行波差动保护线路参数不确定性影响

更新时间：2025-08-13

- 行波差动保护线路参数不确定性影响
- Automation of Electric Power Systems Vol. 32, Issue 3, Pages: 42-47(2008)
- 作者机构：
  
  浙江大学电气工程学院,浙江省,杭州市,310027
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2008
- 稿件说明：
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ZHANG Wujun, HE Benteng, ZHANG Bo. [J]. Automation of electric power systems, 2008, 32(3): 42-47.
DOI：

ZHANG Wujun, HE Benteng, ZHANG Bo. [J]. Automation of electric power systems, 2008, 32(3): 42-47. DOI：

摘要

研究了线路分布电容和电感参数误差对行波差动保护的影响，分析了不平衡差流中的暂态高频成分及其衰减规律，并给出了差流中基波和各暂态高频分量幅值与电容/电感参数误差、线路长度及系统阻抗的定量关系，EMTP仿真计算验证了文中结论。

Abstract

The influence of distributed capacitance and inductance error on traveling-wave differential current protection is studied. The transient high-frequency components of the differential current are analyzed. The quantitative relations of each components' amplitude of differential current versus the parameter errors， line length and system impedance are described. The EMTP simulation results are presented to validate the conclusion.

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