基于流敏电阻的电磁式电压互感器高压侧消谐技术研究  

Research on Harmonic Elimination Technology at High Voltage Terminal of Inductive Voltage Transformer Based on Current Dependent Resistor

作　　者：姚创 魏菊芳[1] 于顺智 崔涵 陈小月 刘俊 冯军基 刘力卿 YAO Chuang;WEI Jufang;YU Shunzhi;CUI Han;CHEN Xiaoyue;LIU Jun;FENG Junji;LIU Liqing(Electric Power Research Institute of State Grid Tianjin Electric Power Company,Tianjin 300384,China;State Grid Tianjin Chengxi Electric Power Supply Company,Tianjin 300190,China;School of Electrical Engineering and Automation,Wuhan University,Wuhan,Hubei 430072,China;Anhui Zhengguangdian Power Technology Co.,Ltd.,Hefei,Anhui 230011,China)

机构地区：[1]国网天津市电力公司电力科学研究院,天津300384 [2]国网天津市电力公司城西供电分公司,天津300190 [3]武汉大学电气与自动化学院,湖北武汉430072 [4]安徽正广电电力技术有限公司,安徽合肥230011

出　　处：《广东电力》2023年第12期97-105,共9页Guangdong Electric Power

基　　金：国网天津市电力公司科技项目(KJ21-1-10)。

摘　　要：近年来,干式电磁式电压互感器过电压故障频发,且电磁式电压互感器过电压抑制措施在技术性或经济性方面均存在一定的缺点。针对该问题,提出一种基于流敏电阻的电磁式电压互感器高压侧消谐技术,该技术通过在电压互感器高压侧加装基于流敏电阻的消谐装置来实现对过电压的抑制。通过建立基于ATP-EMTP的仿真模型,对暂态过程中高压侧限流消谐装置的动态响应特性以及电压互感器的采样精度进行仿真分析。研制电磁式电压互感器高压侧限流消谐装置,并建立实验平台模拟实际过电压工况,对所研装置进行有效性验证。仿真与实验验证结果表明,该技术能够实现对电压互感器谐振的抑制,有效预防故障发生。In recent years,over-voltage faults of dry-type inductive voltage transformers occur frequently,and over-voltage suppression measures of inductive voltage transformers have certain shortcomings in technical or economic aspects.To solve those problems,this paper proposes a harmonic elimination technology for high voltage terminal of the inductive voltage transformer based on the current dependent resistor.This technology realizes the over-voltage suppression by installing a harmonic eliminator based on the current dependent resistor at the high voltage terminal of the voltage transformer.By establishing the simulation model based on ATP-EMTP,the papaer simulates and analyzes the dynamic response characteristics of the harmonic eliminator in the transient process and the sampling accuracy of voltage transformer.A harmonic eliminator for the high voltage terminal of inductive voltage transformer is developed.Meanwhile,an experimental platform is established to imitate the actual over-voltage condition and verify the effectiveness.The simulation and experiment results show that the technology can effectively suppress the resonance of voltage transformer and prevent the occurrence of faults.

关 键 词：电磁式电压互感器 流敏电阻 高压侧 过电压抑制 消谐装置 

分 类 号：TM451[电气工程—电器]