基于行波理论的补偿电压突变量选相元件

LI You-yi; DONG Xin-zhou; SUN Yuan-zhang

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基于行波理论的补偿电压突变量选相元件

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- 基于行波理论的补偿电压突变量选相元件
- Automation of Electric Power Systems Vol. 30, Issue 8, (2006)
- 作者机构：
  
  清华大学电机系电力系统国家重点实验室,北京市,100084
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2006
- 稿件说明：
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LI You-yi, DONG Xin-zhou, SUN Yuan-zhang. [J]. Automation of electric power systems, 2006, 30(8).
DOI：

LI You-yi, DONG Xin-zhou, SUN Yuan-zhang. [J]. Automation of electric power systems, 2006, 30(8). DOI：

摘要

为了配合高速保护，提出了一种新型的基于行波理论的相间补偿电压突变量选相元件，利用测量点的方向行波，根据输电线路的分布参数模型，采用行波传播方程计算正方向线路上补偿点的电压，并用该补偿电压构成相间电压突变量选相元件。该算法直接用采样数值进行计算，选相速度很快，适用于各种高速保护。讨论了该选相元件的原理，并通过仿真验证了该算法的正确性。

Abstract

A novel fault phase selector by fault component of compensation voltage based on traveling wave is presented for high-speed protection. The compensation voltage is calculated from directional traveling waves by traveling wave transmitting formula on distributed parameters of transmission line. This compensation voltage is used in the fault phase selector. Sampling data of voltages and currents are used directly， hence it has high speed and is suitable for high-speed protection. The principle and algorithm are presented and EMTP simulation proves their correction.

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