Analysis and Design of LCL-filter in Shunt Active Power Filter

ZHANG Guo-rong; LI Zong-jun; CHEN Peng

doi:10.13296/j.1001-1609.hva.2011.06.001

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Analysis and Design of LCL-filter in Shunt Active Power Filter

更新时间：2025-04-26

- Analysis and Design of LCL-filter in Shunt Active Power Filter
- High VoltageApparatus Vol. 47, Issue 6, Pages: 19-22+28(2011)
- 作者机构：
  
  教育部光伏系统工程研究中心合肥工业大学能源研究所
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2011.06.001
  CLC： TN713.8
- Published：2011
- 稿件说明：
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[1]张国荣,李宗钧,陈鹏.并联有源电力滤波器中LCL滤波器的分析与设计[J].高压电器,2011,47(06):19-22+28.

ZHANG Guo-rong, LI Zong-jun, CHEN Peng. Analysis and Design of LCL-filter in Shunt Active Power Filter[J]. High voltageapparatus, 2011, 47(6): 19-22+28.
[1]张国荣,李宗钧,陈鹏.并联有源电力滤波器中LCL滤波器的分析与设计[J].高压电器,2011,47(06):19-22+28. DOI： 10.13296/j.1001-1609.hva.2011.06.001.

ZHANG Guo-rong, LI Zong-jun, CHEN Peng. Analysis and Design of LCL-filter in Shunt Active Power Filter[J]. High voltageapparatus, 2011, 47(6): 19-22+28. DOI： 10.13296/j.1001-1609.hva.2011.06.001.

摘要

并联有源电力滤波器（active power filter

APF）要求较高的补偿带宽和较低的开关纹波含量。LCL滤波器由于可以兼顾低频段增益和高频段的衰减

是APF输出滤波器的较好选择。但LCL滤波器是三阶系统

设计较为复杂且存在谐振点振荡问题。现有的论文主要是通过MATLAB仿真图形分析LCL滤波器的性能

不能给出定量的公式化描述。笔者推导了带阻尼电阻的LCL滤波器的S域传递函数

并将其分解为几个典型系统的组合

利用数学推导详细分析了LCL滤波器中各个参数变化对系统性能的影响

为LCL的参数调整提供了理论依据。仿真和实验结果证明了所提出理论的正确性。

Abstract

Shunt active power filter（APF）needs wide compensation range and few switching harmonic components. LCL-filter is suitable for APF because of it’s good characteristics of amplification in low frequency and attenuation in high frequency.However

LCL-filter is a three-order system causing complex design and oscillation problem at resonance frequency.Present studies analyze the LCL-filter mainly by simulations via MATLAB without giving formulation.This paper deduces a transfer function in S domain of LCL filter with damping resistances

and decomposes the function into several typical systems to analyze the influence of each parameter variation of LCL-filter on the performance of system.Simulation and experiment validate the correctness of the proposed method.

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