CAJ | 학술논문

随着电力系统电压等级的提高,传统电磁式电压互感器和电容分压式电压互感器的缺陷如绝缘结构复杂、存在磁饱和及铁磁谐振等将日益突出.光学电压互感器可有效克服传统电压互感器的固有缺陷.设计了一种基于普克尔效应的光学电压互感器,阐述了其结构及工作原理.设计并制作了器件化的传感头以及实验用的屏蔽装置,搭建了光学电压互感器实验系统,利用数字闭环检测技术来进行输出信号的处理.常温下,互感器在0~2.5kV直流电压下的测试结果显示,互感器的输出具有良好的线性关系,表明该光学电压互感器设计方案的可行性.
수착전력계통전압등급적제고,전통전자식전압호감기화전용분압식전압호감기적결함여절연결구복잡、존재자포화급철자해진등장일익돌출.광학전압호감기가유효극복전통전압호감기적고유결함.설계료일충기우보극이효응적광학전압호감기,천술료기결구급공작원리.설계병제작료기건화적전감두이급실험용적병폐장치,탑건료광학전압호감기실험계통,이용수자폐배검측기술래진행수출신호적처리.상온하,호감기재0~2.5kV직류전압하적측시결과현시,호감기적수출구유량호적선성관계,표명해광학전압호감기설계방안적가행성.
@@@@ Along with voltage class upgrading of power systems, defects of traditional electromagnetic voltage transformers and capacitive voltage transformer such as complex insulation structure, insufficient accuracy caused by magnetic saturation and existence of magnetic saturation and ferromagnetic resonance become more and more evident, however optical voltage transducer can effectively overcome inherent defects of traditional voltage transducers. A Pockels effect-based optical voltage transducer (OVT) is designed and its structure and working principle are expounded. The sensing head in device-level and shielding device are designed and developed, and an experimental system for the optical voltage transducer is set up and output signals are processed by digital closed-loop detection technology. In normal temperature environment, the testing results of OVT within the rising range of DC voltage from 0 kV to 2.5 kV show that there is a satisfied linear relation between the input and the output of the OVT, so it indicates the design scheme of the developed OVT is feasible.