Application of 70Mvar Cascade SVG in the Field of Electric Arc Furnace

SUN Xianda; LYU Xiaoguo; LI Haisheng; YANG Yongfei; WANG Feiyi; WANG Jihao; LI Hang; XI Peng

doi:10.14044/j.1674-1757.pcrpc.2020.04.022

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Application of 70Mvar Cascade SVG in the Field of Electric Arc Furnace

更新时间：2024-09-14

- Application of 70Mvar Cascade SVG in the Field of Electric Arc Furnace
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 41, Issue 4, Pages: 123-129(2020)
- 作者机构：
  
  辽宁荣信兴业电力技术有限公司
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2020.04.022
  CLC： TM761.12;TM924.4
- Published：2020，
- 稿件说明：
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[1]孙贤大,吕孝国,李海生,杨永飞,王飞义,王继浩,李航,息鹏.70Mvar链式SVG在电弧炉现场的应用[J].电力电容器与无功补偿,2020,41(04):123-129.

SUN XIANDA, LYU XIAOGUO, LI HAISHENG, et al. Application of 70Mvar Cascade SVG in the Field of Electric Arc Furnace. [J]. Power capacitor & reactive power compensation, 2020, 41(4): 123-129.
[1]孙贤大,吕孝国,李海生,杨永飞,王飞义,王继浩,李航,息鹏.70Mvar链式SVG在电弧炉现场的应用[J].电力电容器与无功补偿,2020,41(04):123-129. DOI： 10.14044/j.1674-1757.pcrpc.2020.04.022.

SUN XIANDA, LYU XIAOGUO, LI HAISHENG, et al. Application of 70Mvar Cascade SVG in the Field of Electric Arc Furnace. [J]. Power capacitor & reactive power compensation, 2020, 41(4): 123-129. DOI： 10.14044/j.1674-1757.pcrpc.2020.04.022.

摘要

电弧炉是一种非线性强时变负载

会对电网产生电压波动及闪变、谐波、功率因数低等诸多电能质量问题。传统的SVC补偿装置由于响应速度慢

补偿效果有限。SVG是解决电弧炉电能质量问题的最有效装置

但控制算法复杂

国内成功应用于电弧炉补偿的SVG很少。本文介绍了一套70 Mvar链式SVG在国内某电弧炉现场的使用情况。现场测试数据表明

SVG投入运行后

电网存在的电能质量问题得到了明显改善

充分体现了SVG对电弧炉负载优越的补偿性能。

Abstract

Electric arc furnaces（EAF） is a kind of no-linear and strong time-varying load

which will cause many such power quality problems in the grid as voltage fluctuation and flicker

harmonics and low power factor.The compensation result of traditional SVC compensation device is limited due to slow response speed.SVG is the most effective device to solve the electric power quality problem of EAF

but the successful compensation of the SVG in the electric arc furnace in china is very rare due to complicated control algorithm.In this paper

the use of a 70 Mvar cascade SVG in an EAF site in China is introduced.It is shown by the site test data that the power quality has significant improvement after operation of SVG and fully reflects superior compensation performance of SVG for the load of EAF.

关键词

电弧炉（EAF）静止无功补偿（SVG）闪变谐波

Keywords

electric are furnace（EAF）static var generator（SVG）flickerharmonic

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