Harmonic Mitigation of an Improved High Voltage Current Source for On-site System Calibration of High Voltage Transformer Loss Measurement Systems

被引：0

作者：

Said, Amr ^{[1
]}

So, Eddy ^{[1
]}

Angelo, Dave ^{[1
]}

机构：

[1] Natl Res Council Canada, Ottawa, ON K1A 0R6, Canada

来源：

2018 CONFERENCE ON PRECISION ELECTROMAGNETIC MEASUREMENTS (CPEM 2018) | 2018年

关键词：

Harmonic mitigation; load loss standard; open-loop control;

D O I：

暂无

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：

This paper proposes an open-loop technique that mitigates the harmonic distortion in high load currents for on-site system calibrations of high voltage transformer loss measurement systems. The harmonic distortion induced by the current transconductance amplifier and current injector poses high burden on the feedback current correction loop and thus may compromise the measurement accuracy. Accordingly, a harmonic mitigation technique is introduced through online system identification and open-loop anti-harmonic injection. This methodology significantly reduces the THD in the load current from 0.3% to less than 0.022%.

引用

页数：2