CAJ | 학술논문

随着智能电网对量测设备要求的提高，光学电流互感器在电力系统中具有越来越广阔的应用前景。针对传统闭合光路结构存在的缺陷，研究了螺线管聚磁光路结构并分析了其管内外磁场。为解决传统的三相螺线管聚磁式传感头平行布置时存在的相间磁干扰严重的问题，提出了相间磁场正交技术。在COMSOL（试用版）中进行的有限元仿真分析和现场运行结果表明：运用相间磁场正交技术的的螺线管聚磁式光学电流互感器具有很高的抗相间磁干扰能力，达到了0.2级的测量水平。
수착지능전망대량측설비요구적제고，광학전류호감기재전력계통중구유월래월엄활적응용전경。침대전통폐합광로결구존재적결함，연구료라선관취자광로결구병분석료기관내외자장。위해결전통적삼상라선관취자식전감두평행포치시존재적상간자간우엄중적문제，제출료상간자장정교기술。재COMSOL（시용판）중진행적유한원방진분석화현장운행결과표명：운용상간자장정교기술적적라선관취자식광학전류호감기구유흔고적항상간자간우능력，체도료0.2급적측량수평。
As smart grid makes higher requirement for measurement equipment, optical current transducer (OCT) used in power system shows broader application prospects. Considering the shortcoming of traditional closed light path structure, we studies the optical structure of solenoid collecting magnetism and analyzes and its magnetic field. To solve the problem of serious interphase magnetic disturbance caused by parallel arrangement of three-phase sensor heads, the interphase magnetism orthogonal technology is proposed. Finite element analysis with COMSOL and field operation results reveal that OCT using interphase magnetism orthogonal technology has strong capability against interphase magnetic interference with a precision of up to 0.02%.