特高压换流站直流电流互感器暂态性能测试方法  

Test method for transient performance of DC current transformer in UHV converter station

作　　者：杨帅 张陵 冯长有 南东亮 孔祥平 李凤祁 YANG Shuai;ZHANG Ling;FENG Changyou;NAN Dongliang;KONG Xiangping;LI Fengqi(Electric Power Research Institute of State Grid Xinjiang Electric Power Co.,Ltd.,Urumqi 830011,China;National Electric Power Dispatching and Control Center,State Grid Corporation of China,Beijing 100031,China;School of Electrical Engineering,Xinjiang University,Urumqi 830047,China;Electric Power Research Institute of State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing 211103,China;DC Technical Center of State Grid Corporation of China,Beijing 100052,China)

机构地区：[1]国网新疆电力有限公司电力科学研究院,新疆乌鲁木齐830011 [2]国家电力调度控制中心,北京100031 [3]新疆大学电气工程学院,新疆乌鲁木齐830047 [4]国网江苏省电力有限公司电力科学研究院,江苏南京211103 [5]国家电网有限公司直流技术中心,北京100052

出　　处：《中国测试》2023年第4期151-158,共8页China Measurement & Test

基　　金：国家自然科学基金资助项目(51667020);新疆维吾尔自治区重点实验室开放课题(2018D04005)。

摘　　要：随着国内特高压工程的不断建设,直流电流互感器作为换流站内重要设备,其暂态性能的测试成为当前研究领域的一大热点。针对目前直流电流互感器测试技术的空白,文章分析现有电流互感器的工作原理并提出一种暂态性能测试方法。该系统通过直流信号精确采集技术和基于信号回采自校正调节的直流阶跃源输出构成了测试的基本条件,通过对标准源和被测电流互感器的信号检测对比,计算出电流互感器暂态性能的上升时间、最大过冲和暂态延时等特性。通过在昌吉站进行电流互感器的暂态性能测试,验证方法的有效性,为直流电流互感器的性能评估提供了依据。该方法在直流电流互感器的校验中有着推广意义。With the continuous construction of UHV project in China,DC current transformer as an important equipment in converter station,its transient performance test has become a hot spot in current research field.In view of the lack of DC current transformer testing technology,this paper analyzes the working principle of current transformer and puts forward a transient performance testing method.The basic condition of the system is the precise acquisition technology of DC signal and the output method of DC step source based on signal recovery self-tuning adjustment.By comparing the signal detection between standard source and current transformer,the rise time,maximum overshoot and transient delay of current transformer are calculated.The validity of the method is verified by the transient performance test of current transformer at Changji station,which provides a basis for the performance evaluation of DC current transformer.This method can be widely used in the calibration of DC current transformer.

关 键 词：特高压 直流电流互感器 暂态性能 测试技术 

分 类 号：TM933[电气工程—电力电子与电力传动]