摘要
基于罗氏线圈的电子式电流互感器在电力系统中得到了广泛的应用,其中积分器对电子式电流互感器的稳定性和精度具有重要的影响。针对罗氏线圈的积分算法分别提出了模拟和数字两种算法及其实现形式,从原理上给出了各自的传递函数,对其幅频相频特性以及性能进行了分析,并结合实际应用设计了基于双线性变换数字积分算法的数字积分器,实验结果验证了设计方法的有效性和实用性。
Electronic current transducer based on Rogowski coil has been applied in the power system.The performance of integrator is a main factor affecting the stability and precision in the Rogowski transducer.In this paper,the format of implement is described,the transfer functions are given based on their principle,and the amplitude-frequency characteristic and phase-frequency characteristic are analyzed.Finally,combining with the actual application in the project,a digital actuator was designed.The testing results prove the validity and practicability of the design method.
出处
《电测与仪表》
北大核心
2011年第5期10-13,共4页
Electrical Measurement & Instrumentation
关键词
罗氏线圈
电子式电流互感器
积分器
Rogowski coil
electronic current transducer
integrator
