电测与仪表2016，Vol.53Issue(24)：80-86,7.
Rogowski 线圈数字积分器的直流误差消除方法研究
Research on DC error elimination method of Rogowski coil digital integrator
汪建 1戴原骁1
作者信息
- 1. 华中科技大学电气与电子工程学院，武汉430074
- 折叠
摘要
Abstract
Integrator is an important part of Rogowski coil electronic current transformer , but the accuracy of integrator is influenced by the DC error caused by amplification sampling analog circuits .This paper analyzes some methods which are usually used in eliminating DC error and puts forward a mirroring method which means to sample a pair of mirroring analog signal by a pair of the same ADCs .The simulation and hardware test result show that during the measurement of secondary harmonic and transient current , only the DC error is eliminated and the signal which is to be integrated is mostly left complete .As a result , a higher integration accuracy is reached .关键词
罗氏线圈/积分器/直流误差/镜像法/次谐波/暂态电流Key words
Rogowski coil/integrator/DC error/method of mirroring/secondary harmonic/transient current分类
信息技术与安全科学引用本文复制引用
汪建,戴原骁..Rogowski 线圈数字积分器的直流误差消除方法研究[J].电测与仪表,2016,53(24):80-86,7.
