Uncertainty evaluation for a precision phase measurement system at power frequency

被引：0

作者：

You Li ^{[1
]}

Hou Xuwei ^{[1
]}

Jin Haibin ^{[1
]}

机构：

[1] Beijing Orient Inst Measurement & Test, Dept Metrol, Beijing 100191, Peoples R China

来源：

PROCEEDINGS OF 2019 14TH IEEE INTERNATIONAL CONFERENCE ON ELECTRONIC MEASUREMENT & INSTRUMENTS (ICEMI) | 2019年

关键词：

Phase measurement; Uncertainty Evaluation; Dual channels digital sampling; power frequency;

D O I：

10.1109/icemi46757.2019.9101699

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A precision phase measurement system was developed based on dual channels digital sampling technology to measure the phase angle precisely at high voltage loss measurement,. The system mainly made up of two digitizes, one programmable switches set, voltage dividers and shunts. Measurement software use to calculate phase and amplitude based on digitizers data. The system could be self calibrated automatic. The phase measurement system needs to reach an excellent measurement perlbrmance at different phase angles, and phase measurement error can be verified at low power factor condition. The paper evaluate the uncertainty for the measurement system for ensure the uncertainty is less than 0.0005 degree at 50 Hz power frequency.

引用

页码：1867 / 1872

页数：6

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