基于可控短路技术的系统阻抗测量方法在孤岛检测中的应用

ZHU Ke; LU Xiaohui; YU Qing; HAN Yaopeng; ZHANG Bo

您当前的位置：

首页 >

文章列表页 >

基于可控短路技术的系统阻抗测量方法在孤岛检测中的应用

更新时间：2025-08-13

- 基于可控短路技术的系统阻抗测量方法在孤岛检测中的应用
- Automation of Electric Power Systems Vol. 37, Issue 2, Pages: 119-124(2013)
- 作者机构：
  
  1. 电网智能化调度与控制教育部重点实验室，山东大学,山东省,济南市,250061
  2. 山东电力工程咨询院有限公司,山东省,济南市,250013
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2013
- 稿件说明：
移动端阅览
ZHU Ke, LU Xiaohui, YU Qing, et al. [J]. Automation of electric power systems, 2013, 37(2): 119-124.
DOI：

ZHU Ke, LU Xiaohui, YU Qing, et al. [J]. Automation of electric power systems, 2013, 37(2): 119-124. DOI：

摘要

迅速有效的孤岛检测技术对于分布式发电系统的安全可靠有着十分重要的意义。针对分布式发电系统的孤岛检测问题，提出了一种简单有效的检测方法:在分布式电源出口端任意两相间设置一个晶闸管，通过控制晶闸管周期性瞬时导通，人为造成分布式电源出口端周期性瞬时相间短路，从而产生周期性短路脉冲电压和电流。基于该短路脉冲电压和电流，实时获得分布式电源出口处的系统阻抗，通过监测该系统阻抗的变化即可迅速判断出分布式电源是否处于孤岛状态。文中也对检测信号间的干扰进行了有效分析。理论推导、仿真和模拟实验都验证了该方法的有效性。

Abstract

It is very important for a distributed generating system to have an effective islanding detection component.A new and effective islanding detection scheme is proposed.The scheme includes a thyristor placed between any two phases just by the port of a distributed generator（DG）.An artificial short time phase-to-phase short circuit is formed by triggering the thyristor periodically，so the short-circuit current and voltage pulse can be extracted.Because of this，the frequency response of system can be acquired according to the theory of harmonic impedance，so that the impedance measured from DG port can be obtained.Whether the DG is islanding can be determined quickly by monitoring the changes of this impedance.At the same time，disturbances between different DGs detecting signals are analyzed.This method is proved to be correct and effective by theoretical analysis，simulation and mockup experiment.

关键词

Keywords

references

Views

2324

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

利用电力电子扰动技术的系统对地电容检测方法

Modeling and Design of Magnetically Coupled Bidirectional Z-source Solid-state Circuit Breaker for DC Microgrid

Islanding Detection Method for Multiple Distributed Generators Based on Fixed Frequency Control of Inverter

Design of Bidirectional Z-source Solid-state DC Circuit Breaker with Low Loss

Related Author

ZHU Ke

ZHOU Zhongzheng

FEI Yuqing

WANG Yufeng

PU Fan

LIU Yuyang

LI Weilin

Jun ZHANG

Related Institution

Key Laboratory of Power System Intelligent Dispatch and Control of Ministry of Education(Shandong University)

School of Automation, Northwestern Polytechnical University

School of Electrical and Electronic Engineering, Shandong University of Technology

State Grid Quanzhou Power Supply Company

East China Branch of State Grid Corporation of China

⁰