Study on Voltage Fluctuation and Flicker Suppression of D-STATCOM Distribution Grid Based on LCL

XING Yuting; SU Hongsheng

doi:10.14044/j.1674-1757.pcrpc.2018.02.004

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Study on Voltage Fluctuation and Flicker Suppression of D-STATCOM Distribution Grid Based on LCL

更新时间：2024-09-14

- Study on Voltage Fluctuation and Flicker Suppression of D-STATCOM Distribution Grid Based on LCL
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 39, Issue 2, Pages: 19-25(2018)
- 作者机构：
  
  兰州交通大学自动化与电气工程学院
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2018.02.004
  CLC： TM761.12
- Published：2018，
- 稿件说明：
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[1]邢宇婷,苏宏升.基于LCL的D-STATCOM配电网电压波动与闪变的抑制研究[J].电力电容器与无功补偿,2018,39(02):19-25.

XING YUTING, SU HONGSHENG. Study on Voltage Fluctuation and Flicker Suppression of D-STATCOM Distribution Grid Based on LCL. [J]. Power capacitor & reactive power compensation, 2018, 39(2): 19-25.
[1]邢宇婷,苏宏升.基于LCL的D-STATCOM配电网电压波动与闪变的抑制研究[J].电力电容器与无功补偿,2018,39(02):19-25. DOI： 10.14044/j.1674-1757.pcrpc.2018.02.004.

XING YUTING, SU HONGSHENG. Study on Voltage Fluctuation and Flicker Suppression of D-STATCOM Distribution Grid Based on LCL. [J]. Power capacitor & reactive power compensation, 2018, 39(2): 19-25. DOI： 10.14044/j.1674-1757.pcrpc.2018.02.004.

摘要

配电网静止同步补偿器（D-STATCOM）用于抑制配电网电压波动与闪变。为使D-STATCOM输出电流的谐波含量满足要求

多通过单电感L限制高频谐波电流。但中高功率时

满足谐波标准所需的L值增大

从而会引起D-STATCOM直流侧的电压值增加、装置的体积增加等问题。为此

本文使用LCL滤波器代替了传统L滤波器

从而减小了总电感值

降低了系统的体积与成本。仿真验证了理论的正确性

证明了基于LCL滤波器的D-STATCOM不仅对配电网电压波动与闪变有很好的抑制作用

同时与基于L滤波器的D-STATCOM相比

输出电流的谐波抑制效果更好。

Abstract

Distribution static synchronous compensator（D-STATCOM） is used to suppress voltage fluctuation and flicker in distribution grid. For keeping the harmonic contents of D-STATCOM output current meet the requirement

high frequency harmonic current is limited by the single inductor L. In case of intermediate and high power

however

the L value needed to meet the harmonic standard is increased

causing the increase of voltage at the DC side of D-STATCOM and of volume of the device. Therefore

in this paper

LCL filter is used to replace traditional L filter so to reduce the total inductance

system volume and cost. The correctness of the theory is verified by the simulation that D-STATCOM based on LCL filter not only has good suppression to the voltage fluctuation and flicker of the distribution grid

but also

compared to the D-STATCOM based on L filter

has good harmonic suppression result of output current.

关键词

静止同步补偿器（D-STATCOM）电压波动和闪变LCL滤波器PI控制

Keywords

distribution static synchronous compensator（D-STATCOM）voltage fluctuation and flickerLCL filterPI control

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