Analysis and Design of Loop Gains to Optimize the Dynamic Performance of Optical Voltage Sensor Based on Pockels Effect

被引：7

作者：

Li, Hui ^{[1
]}

Cui, Liyang ^{[1
]}

Wang, Xiaxiao ^{[1
]}

Lin, Zhili ^{[2
]}

Zhang, Chunxi ^{[1
]}

机构：

[1] Beihang Univ, Sch Instrument Sci & Optoelect Engn, Beijing 100191, Peoples R China

[2] Huaqiao Univ, Sch Informat Sci & Engn, Xiamen 361021, Peoples R China

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2015年 / 33卷 / 14期

基金：

中国国家自然科学基金;

关键词：

Dynamic performance; optical voltage sensor; signal process; AC;

D O I：

10.1109/JLT.2015.2432068

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 design method of loop gains is proposed for improving the fast dynamic tracking performance of optical voltage sensor (OVS) based on Pockels effect. The distribution principle of loop gains is investigated in theory according to the characteristics of closed-loop error of OVS. Based on the obtained distribution principle of loop gains, the hardware circuit and the control parameters of the controller are designed to improve the signal to noise ratio (SNR) of closed-loop error and the dynamic performance of OVS, respectively. The experimental results demonstrate that the system can achieve the high dynamic performance under the high detection precision: OVS can accurately track 13th harmonic with 1.57% measurement error and 4.24 degrees phase error, and the long term steady accuracy of power frequency voltage is within +/- 0.1%. The experimental results validate the effectiveness of our new design method of loop gains.

引用

页码：3108 / 3115

页数：8

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