动态电压恢复器在电能质量监测中的应用研究

Study on the Application of Dynamic Voltage Restorer in Power Quality Monitoring

郭姚超 ¹胡志军 ¹刘智强 ¹程龙 ¹贾子昊 ¹郭超¹

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作者信息

1. 国网河南省电力公司平顶山供电公司,平顶山 467000
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摘要

基于现代智能电网中电压质量问题的严重性,提出了一种基于动态电压恢复器(dynamic voltage restorer,DVR)的配电网电压质量改善策略.通过在MATLAB/Simulink中建立含DVR的配电网模型,分别在供电电压中加入 3 次和 5 次谐波进行仿真分析.结果表明,在未采用DVR时,配电网负载电压总谐波畸变率(total harmonic distortion,THD)分别高达 18%和 23%.采用所提DVR控制策略后,负载电压THD均降至 4%以下,有效抑制了电压畸变,实现了平滑补偿.研究结果验证了该DVR控制策略在改善配电网电压质量方面的有效性,为智能电网建设提供了技术支持.

Abstract

A strategy for improving voltage quality in distribution networks based on a dynamic voltage restorer(DVR)was proposed,addressing the severity of voltage quality issues in modern smart grids.Simulations were conducted in MATLAB/Simulink,incorporating third and fifth harmonics into the supply voltage.The results indicated that without the DVR,the total harmonic distortion(THD)of the load voltage reached 18% and 23%,respectively.After applying the proposed DVR control strategy,the THD was reduced to below 4%,effectively suppressing voltage distortion and achieving smooth compensation.This demonstrates the effectiveness of the DVR control strategy in enhancing voltage quality,providing technical support for smart grid development.

关键词

动态电压恢复器/FACTS/总谐波畸变率/谐波/电压质量

Key words

dynamic voltage restorer/FACTS/total harmonic distortion rate/harmonics/voltage quality

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出版年

2024

环境技术

广州电器科学研究院有限公司

环境技术

CSTPCD

影响因子：0.995

ISSN：1004-7204

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