Influence of Harmonic Sequence Impedance and Reactive Power Compensation Capacitor on Power Quality in Distribution Grid

HU Haining; GONG Miao

doi:10.14044/j.1674-1757.pcrpc.2016.06.013

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Influence of Harmonic Sequence Impedance and Reactive Power Compensation Capacitor on Power Quality in Distribution Grid

更新时间：2024-09-14

- Influence of Harmonic Sequence Impedance and Reactive Power Compensation Capacitor on Power Quality in Distribution Grid
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 37, Issue 6, Pages: 70-75(2016)
- 作者机构：
  
  国网上海市电力公司经济技术研究院
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2016.06.013
  CLC： TM711;TM761
- Published：2016，
- 稿件说明：
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[1]胡海宁,龚淼.配电网谐波序阻抗及无功补偿电容器对电能质量的影响[J].电力电容器与无功补偿,2016,37(06):70-75.

HU HAINING, GONG MIAO. Influence of Harmonic Sequence Impedance and Reactive Power Compensation Capacitor on Power Quality in Distribution Grid. [J]. Power capacitor & reactive power compensation, 2016, 37(6): 70-75.
[1]胡海宁,龚淼.配电网谐波序阻抗及无功补偿电容器对电能质量的影响[J].电力电容器与无功补偿,2016,37(06):70-75. DOI： 10.14044/j.1674-1757.pcrpc.2016.06.013.

HU HAINING, GONG MIAO. Influence of Harmonic Sequence Impedance and Reactive Power Compensation Capacitor on Power Quality in Distribution Grid. [J]. Power capacitor & reactive power compensation, 2016, 37(6): 70-75. DOI： 10.14044/j.1674-1757.pcrpc.2016.06.013.

摘要

谐波电流注入电网会在系统中感应出谐波阻抗

获取谐波阻抗是一世界性难题

本文针对上海地区0.4 k V配电网的特点

采用了傅里叶级数展开法及叠加定理论证了电能质量分析仪的现场实测结果

尝试分析基于配电网的各种运行方式下及无功补偿电容器各种投切方式下的三相谐波正序、负序、零序阻抗

并由谐波序阻抗进一步分析谐波对配电网电能质量的污染程度。

Abstract

Injection of harmonic current into power grid will induce harmonic impedance in the power system and the acquisition of harmonic impedance is a worldwide problem. In this paper

the site experimental result of power quality analyzer

according to the feature of 0.4 k V distribution grid in Shanghai

is demonstrated by the use of Fouries series expansion and superposition theorem. The positive sequence

negative sequence and zero sequence impedance of three-phase harmonics based on various operation modes of distribution grid and various switching modes of reactive power compensation cap-acitor are analyzed. And the pollution level of harmonic to the power quality of distribution grid is analyzed further by the harmonic sequence impedance.

关键词

谐波序阻抗励磁阻抗无功补偿容抗

Keywords

harmonic sequence impedanceexciting impedancereactive power compensationcapacitive impedance

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