Research on Harmonic Traceability Method of Reference Meter Based on Power Comparison

智能电网(汉斯) Pub Date : 2021-06-18 DOI:10.1109/ICSGSC52434.2021.9490427

Zhao Zhihua, Bao Xuejun, Wang Huanning, Huang Yan, Tan Hengyu, Yao Hejun

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Abstract

The harmonics generated by a large number of power electronic equipment in the power grid will seriously affect the measurement accuracy of electric energy measuring instruments. Therefore, in order to determine the anti-harmonic interference performance of electric energy meters, harmonic influence tests are required in the national standards of electric energy meters and the type evaluation outline. As the main standard device used in the harmonic impact test of the electric energy meter, the reference meter has passed the measurement verification, but its verification items do not include the detection of the harmonic measurement performance. In order to ensure the validity of the harmonic impact test of the electric energy meter, it is necessary to test the harmonic measurement performance of the reference meter. This paper designs a set of measurement and detection schemes that uses power comparison method to trace the source of harmonics of reference meters. It has important reference value for improving the accuracy of harmonic measurement and the reliability of electric energy meter type test.

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基于功率比较的基准电表谐波溯源方法研究

电网中大量电力电子设备产生的谐波会严重影响电能计量仪器的测量精度。因此，为了确定电能表的抗谐波干扰性能，在电能表国家标准和型式评定大纲中要求进行谐波影响试验。参考电能表作为电能表谐波冲击试验中使用的主要标准装置，已通过测量检定，但其检定项目不包括谐波测量性能的检测。为了保证电能表谐波冲击试验的有效性，有必要对参考电能表的谐波测量性能进行测试。本文设计了一套采用功率比较法跟踪参考仪表谐波源的测量检测方案。对提高谐波测量的精度和电能表型式试验的可靠性具有重要的参考价值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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