光学电压互感器传感单元的设计与实验研究  

Design and Experimental Study of Optical Voltage Transformer Sensing Unit

作　　者：温海燕[1] 雷林绪[1] 张朝阳[1] 孙海江[1] 

机构地区：[1]中国电力科学研究院电力电子研究所,北京100192

出　　处：《压电与声光》2013年第5期643-646,693,共5页Piezoelectrics & Acoustooptics

基　　金：国家电网公司科技基金资助项目(SGKJKJ[2011]532)

摘　　要：光学电压互感器中的传感单元即光电作用单元是整个互感器系统中的关键部件,对整个互感器的结构和性能有重要影响。介绍了一种反射式光学电压互感器的基本原理,设计并制作了基于普克尔(Pockels)效应的电压传感单元,模拟电力系统高压绝缘和屏蔽装置设计了3种实验用绝缘屏蔽装置,利用光学电压互感器系统对传感单元进行了实验研究。常温下,0～2.5kV直流电压测试结果表明,3种绝缘屏蔽装置下的互感器输出都显示出了较好的线性关系,表明了该传感单元方案的可行性。Sensing unit （or photoelectric effect unit） of optical voltage transformer is the key part of the trans- former, which has an important effect on the structure and performance of the transformer. Basic principle of a kind of reflective optical voltage transformer was introduced in the paper. The voltage sensing unit based on Pockels effect was designed and produced. Three insulating and shielding devices for experiments simulating power system high voltage insulating and shielding device were designed. Experimental study was made for sensing unit using the optical voltage transformer system. The test results under 0- 2.5 kV direct voltage at room temperature showed that the output of the transformer had a good linear relationship with the three insulating and shielding devices re- spectively, indicating the feasibility of the sensing unit.

关 键 词：光学电压互感器 电光晶体 电压传感单元 普克尔效应 绝缘屏蔽装置 

分 类 号：TM451[电气工程—电器]