Study on Power Quality Control of Steel Mill with Strong Background Harmonics

YUAN Jiaxin; KE Yanming; ZHU Jie; CHEN Yaoqin

doi:10.14044/j.1674-1757.pcrpc.2019.06.021

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Study on Power Quality Control of Steel Mill with Strong Background Harmonics

更新时间：2024-09-14

- Study on Power Quality Control of Steel Mill with Strong Background Harmonics
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 40, Issue 6, Pages: 117-122(2019)
- 作者机构：
  
  1. 武汉大学电气与自动化学院
  2. 国网湖北省电力有限公司鄂州供电公司
  3. 国网湖北综合能源服务有限公司
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2019.06.021
  CLC： TG333;TM711
- Published：2019，
- 稿件说明：
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[1]袁佳歆,柯焰明,朱杰,陈瑶琴.含强背景谐波的钢厂轧机电能质量治理研究[J].电力电容器与无功补偿,2019,40(06):117-122.

YUAN JIAXIN, KE YANMING, ZHU JIE, et al. Study on Power Quality Control of Steel Mill with Strong Background Harmonics. [J]. Power capacitor & reactive power compensation, 2019, 40(6): 117-122.
[1]袁佳歆,柯焰明,朱杰,陈瑶琴.含强背景谐波的钢厂轧机电能质量治理研究[J].电力电容器与无功补偿,2019,40(06):117-122. DOI： 10.14044/j.1674-1757.pcrpc.2019.06.021.

YUAN JIAXIN, KE YANMING, ZHU JIE, et al. Study on Power Quality Control of Steel Mill with Strong Background Harmonics. [J]. Power capacitor & reactive power compensation, 2019, 40(6): 117-122. DOI： 10.14044/j.1674-1757.pcrpc.2019.06.021.

摘要

某钢厂轧机线路在长期的日常运作中出现间歇性无法工作的问题

经过分析发现轧机支路母线的电压畸变导致整流装置运作不当

从而导致轧机无法运行

其谐波来源为同一35kV母线接入的电弧炉负荷。在通常情况下两者分别独立从母线接入

轧机的运行只需考虑本支路的谐波问题

但随着非线性负荷电弧炉的接入

该母线上出现较强背景谐波

母线电压发生畸变

严重影响了轧机支路的正常运行及谐波治理。本文通过对含强背景谐波的钢厂电能质量治理进行分析

在Matlab环境中构建带有电弧炉负荷的模型

定性地描述了电弧炉负荷的特性及电弧炉负荷对谐波治理的影响

对模型的仿真结果进行比较分析并得出结论。

Abstract

The intermittent failure problem is occurred in the line of a steel mill and it is founded through analysis that the voltage distortion of the bus of mill branch leads to improper operation of the rectifier

resulting in the failure of the mill operation. The harmonic source is from the load of the electric arc furnace connectingtothesame 35 kVbus.Theboth

under normal case

are connected independently from the busbar. The harmonic problem for the branch is only considered in the operation of the rolling mill. However

with the access of the nonlinear load arc furnace

strong background harmonics appear on the busbar. The bus voltage is distorted

which affects seriously the normal operation and harmonic control of the rolling mill branch. In this paper

the model with load of electric arc furnace is set up in the Matlab environment by way of analyzing power quality control of steel mill with strong background harmonics

the load feature of the electric arc furnace and the influence of electric arc furnace load on the harmonic control is described qualitatively.Thesimulationresultofthemodeliscomparedandanalyzedandtheconclusionisdrawn.

关键词

电弧炉背景谐波谐波治理电能质量Matlab仿真

Keywords

arc furnacebackground harmonicharmonic controlpower qualityMatlab simulation

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