Study on Measurement Method for Ultrahigh Order Harmonics

PAN Yong; LI Qiongling; LIU Shuming; ZHENG Chen; ZHANG Xiaogang; ZHU Mingxing

doi:10.14044/j.1674-1757.pcrpc.2020.04.025

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Study on Measurement Method for Ultrahigh Order Harmonics

更新时间：2024-09-14

- Study on Measurement Method for Ultrahigh Order Harmonics
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 41, Issue 4, Pages: 138-144(2020)
- 作者机构：
  
  1. 国网河南省电力公司电力科学研究院
  2. 安徽大学电气工程与自动化学院
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2020.04.025
  CLC： TM935
- Published：2020，
- 稿件说明：
移动端阅览
[1]潘勇,李琼林,刘书铭,郑晨,张晓刚,朱明星.一种超高次谐波测量方法研究[J].电力电容器与无功补偿,2020,41(04):138-144.

PAN YONG, LI QIONGLING, LIU SHUMING, et al. Study on Measurement Method for Ultrahigh Order Harmonics. [J]. Power capacitor & reactive power compensation, 2020, 41(4): 138-144.
[1]潘勇,李琼林,刘书铭,郑晨,张晓刚,朱明星.一种超高次谐波测量方法研究[J].电力电容器与无功补偿,2020,41(04):138-144. DOI： 10.14044/j.1674-1757.pcrpc.2020.04.025.

PAN YONG, LI QIONGLING, LIU SHUMING, et al. Study on Measurement Method for Ultrahigh Order Harmonics. [J]. Power capacitor & reactive power compensation, 2020, 41(4): 138-144. DOI： 10.14044/j.1674-1757.pcrpc.2020.04.025.

摘要

随着配电网电力电子化的蓬勃发展

电网中的谐波逐渐向高频延伸

超高次谐波（2～150 kHz）已成为不可忽略的新型电能质量问题。准确测量是研究超高次谐波的基石

但受传统谐波测量理论体系的限制

当前测量方法已不再适用。本文简要分析了电力电子变流器超高次谐波产生机理

并从基波频率的关联性角度对比了谐波和超高次谐波的差异性

在此基础上探讨GB/T 17 626.7所规定的谐波测量方法应用于超高次谐波的适用性

继而提出一种在等间隔同步采样方式下谐波和超高次谐波采用不同谐波分群方式的通用型测量方法

实现二者的兼容

并通过仿真和实测数据验证了该测量方法的合理性

为超高次谐波传播特性、兼容水平规划以及治理效果评价等内容的研究提供基础。

Abstract

With the vigorous development of power electronization in distribution network

harmonics in power grid gradually extend toward high frequency and ultrahigh harmonics（2～150 kHz） have become a new type of power quality problem that cannot be ignored.Accurate measurement is the base of studying ultrahigh harmonic.However

the present measurement method is no longer applicable due to the limit traditional harmonic measurement theory system.In this paper

the generating mechanism of ultrahigh harmonics of power electronic converter is analyzed briefly and

from the perspective of relevance of fundamental frequency

the difference between harmonic and ultrahigh harmonics is compared.On this basis

the applicability of harmonic measurement method stipulated in GB/T 17626.7 to ultrahigh harmonics is discussed.Then

a general method of harmonic and ultrahigh harmonics measurement using different harmonic grouping methods under equal interval synchronous sampling mode is proposed to achieve compatibility between the two methods

and the rationality of the measurement method is verified by the simulation and measured data.It provides a basis for the research of ultra-highharmonics propagation characteristics

compatibility level and evaluation of harnessing effect.

关键词

超高次谐波电力电子谐波测量等间隔同步采样谐波分群

Keywords

ultra high order harmonicspower electronicsharmonic measurementequal-interval synchronous samplingharmonic grouping

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