Study on New Harmonic Detection of Shunt Active Filter

LI Guangbing; PU Yuxing

doi:10.14044/j.1674-1757.pcrpc.2018.04.002

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Study on New Harmonic Detection of Shunt Active Filter

更新时间：2024-09-14

- Study on New Harmonic Detection of Shunt Active Filter
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 39, Issue 4, Pages: 7-11(2018)
- 作者机构：
  
  1. 长沙航空职业技术学院
  2. 湖南大学
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2018.04.002
  CLC： TN713.8
- Published：2018，
- 稿件说明：
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[1]李广兵,蒲玉兴.并联型有源电力滤波器新型谐波检测方法研究[J].电力电容器与无功补偿,2018,39(04):7-11.

LI GUANGBING, PU YUXING. Study on New Harmonic Detection of Shunt Active Filter. [J]. Power capacitor & reactive power compensation, 2018, 39(4): 7-11.
[1]李广兵,蒲玉兴.并联型有源电力滤波器新型谐波检测方法研究[J].电力电容器与无功补偿,2018,39(04):7-11. DOI： 10.14044/j.1674-1757.pcrpc.2018.04.002.

LI GUANGBING, PU YUXING. Study on New Harmonic Detection of Shunt Active Filter. [J]. Power capacitor & reactive power compensation, 2018, 39(4): 7-11. DOI： 10.14044/j.1674-1757.pcrpc.2018.04.002.

摘要

由于分布式电网中的非线性、不平衡负载和无功负载的增加

造成了谐波电流、负载不平衡电流、中性线电流和低功率因数等影响电能质量的问题

通常使用并联型有源电力滤波器来实现谐波消除、无功补偿、负载不平衡电流和中性线电流消除。在有源电力滤波器的谐波检测方面

分析了传统基于瞬时无功功率理论方法的不足

提出了新的谐波检测方法

采用滑动平均滤波器（moving average filter

MAF）代替低通滤波器（low pass filter

LPF）进行直流分量的提取

克服了低通滤波器导致的传统检测方法实时性和动态性不强的缺陷

同时简化了模型结构。搭建了仿真与实验平台

仿真与实验结果表明新的谐波检测方法具有良好的检测效果和优越性。

Abstract

Such issues affecting power quality as harmonic current

load unbalance current

neutral current and low power factor etc are caused due to the increase of non-linear

unbalance load and reactive load in the distribution power grid

the shunt active power filter is normally used to achieve elimination of harmonic

reactive power compensation load unbalance current and neutral current. In the field of harmonic detection of active power filter

the shortcoming of the traditional theoretical method based on transient reactive power is analyzed

new harmonic detection method is proposed and the moving average filter（MAF） is used to replace low pass filter（LPF）for the extraction of DC component

which overcomes such defects as weak real time and dynamic of traditional detection method due to the low pass filter and

at the same time

simplifies model structure. The simulation and experimental platform is set up. It is shown by the simulation and experimental result that the new detection method has perfect detection result and superiority.

关键词

并联型有源电力滤波器非线性负载电能质量滑动平均滤波器（MAF）

Keywords

shunt active power filternonlinear loadspower qualitymoving average filter（MAF）

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Related Institution

Electric Power Research Institute of Guangxi Power Grid Co., Ltd.

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