电测与仪表2017，Vol.54Issue(2)：61-67,7.
基于数字积分算法的电子式电流互感器传变特性
Transfer characteristics of electronic current transducer based on integration algorithms
张杰恺 1李辉 2邓吉利 2贺胜 2曹林 1何蓓1
作者信息
- 1. 国网重庆江北供电公司,重庆401123
- 2. 重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400044
- 折叠
摘要
Abstract
Electronic current transducer is one of the key equipments for electric energy metering,measurement and relay protection in the power system.In order to comprehensively analyze the effects of different integration algorithms on its transfer characteristics,taking the Rogowski coil as example,the transfer characteristics were compared with frequently-used rectangular,trapezoidal,Simpson and bilinear transform integration algorithms.Firstly,the overall transfer function of the electronic current transducer was obtained based on the Rogowski coil equivalent circuit and the integral algorithm.Secondly,the amplitude and phase frequency characteristics of the electronic current transducer were compared with different integration algorithms.Finally,taking an electronic current transducer at a 110 kV substation as an example,the transducer transfer characteristics with different integration algorithms were simulated in the case of the steady-state and dynamic input signals.The results show that with the different integration algorithms,the electronic current transducer has good frequency characteristics and the steady-state transfer characteristics,however,it exhibits more obvious differences in terms of the capability of dynamic performances tracking and anti-interference and the anti-disturbances.关键词
Rogowski线圈/电子式电流互感器/数字积分算法/传变特性Key words
Rogowski coil/electronic current transducer/digital integration algorithm/transfer characteristics分类
信息技术与安全科学引用本文复制引用
张杰恺,李辉,邓吉利,贺胜,曹林,何蓓..基于数字积分算法的电子式电流互感器传变特性[J].电测与仪表,2017,54(2):61-67,7.
