适用于保护控制的同步相量测量方法

LI Jue

您当前的位置：

首页 >

文章列表页 >

适用于保护控制的同步相量测量方法

更新时间：2025-08-13

- 适用于保护控制的同步相量测量方法
- Automation of Electric Power Systems Vol. 43, Issue 11, Pages: 158-165(2019)
- 作者机构：
  
  新能源电力系统国家重点实验室(华北电力大学),北京市,102206
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2019
- 稿件说明：
移动端阅览
LI Jue. [J]. Automation of electric power systems, 2019, 43(11): 158-165.
DOI：

LI Jue. [J]. Automation of electric power systems, 2019, 43(11): 158-165. DOI：

摘要

近年来，电力系统电力电子化特征导致输配电网动态特性耦合紧密，系统性故障频发。同步相量测量单元(PMU)在动态安全控制中作用愈发重要。适用于智能配电网的同步相量测量装置的研究也得到广泛开展。如何在当前复杂电气信号条件下保证相量测量精度的同时，缩短其阶跃条件下的响应时间对保护控制应用至关重要。文中提出一种适用于保护控制的同步相量测量方法。该方法揭示了阶跃信号对相量测量的影响机理，分析了相量模型参数在阶跃信号条件下的行为规律，提出了信号阶跃识别方法。进一步，揭示了阶跃量大小与动态相量模型参数突变量的线性关系，提出了阶跃过程中相量修正方法，减少了相量计算的响应时间。仿真与实际录波数据测试验证了所提方法可有效减少响应时间，为智能配电网保护控制提供快速准确的测量数据。

Abstract

The high penetration of electronics has made the dynamic characteristics of transmission and distribution networks more coupling with each other

which leads to more systemic faults. Phasor measurement unit(PMU)plays a more and more important role in dynamic security control. Recently

the research of PMU for distribution network(D-PMU)is also carried out widely. It is of great significance to reduce the response time of step change and ensure the measurement accuracy of D-PMU under complex signal conditions. In this paper

a synchrophasor measurement method for protection and control is proposed. The influence mechanism of step signal on phasor measurement is revealed

the behavior of phasor model parameter under step signal condition is analyzed

and a step signal identification method is proposed. And then

the relationship between step change value and dynamic phasor model parameter is revealed

the phasor of step modification method is propose to reduce the response time. Simulation and site fault recording date test verify that the response time can be reduced by the proposed method which provides fast and accurate measurement data for smart distribution network to control.

关键词

Keywords

references

Views

2420

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Review on Accurate Awareness Technology for Characteristics of Diversified Power User Groups in Smart Distribution Network

Dynamic Coordination Recovery Method for Power-Communication Disaster Fault in Smart Distribution Network

Identification Method for Distribution Network Topology Based on Two-stage Feature Selection and Gramian Angular Field

Residual U-Net Based Complementation Method for Missing Electricity Data of Low-voltage Stations

Related Author

GE Leijiao

LIU Hangxu

SUN Yonghui

LAI Jingang

Zhuolei YAO

Wentao HUANG

Moduo YU

Nengling TAI

Related Institution

School of Artificial Intelligence and Automation, Huazhong University of Science and Technology

School of Energy and Electrical Engineering, Hohai University

Key Laboratory of the Ministry of Education on Smart Power Grids(Tianjin University)

Key Laboratory of Control of Power Transmission and Conversion, Ministry of Education(Shanghai Jiao Tong University)

State Grid Shanghai Municipal Electric Power Company

⁰