直流电子式电压互感器阶跃响应特性现场试验方法及装置  

Field test method and device for step response characteristics of DC electronic voltage transformer

作　　者：朱梦梦 翟少磊 朱全聪 何兆磊 Zhu Mengmeng;Zhai Shaolei;Zhu Quancong;He Zhaolei(Electric Power Research Institute of Yunnan Power Grid Co.,Ltd.,Kunming 650217,China;Yunnan Key Laboratory of Green Energy,Electric Power Measurement Digitalization,Control and Protection,Kunming 650217,China;Measurement Center of Yunnan Power Grid Co.,Ltd.,Kunming 650200,China)

机构地区：[1]云南电网有限责任公司电力科学研究院,昆明650217 [2]云南省绿色能源与数字电力量测及控保重点实验室,昆明650217 [3]云南电网有限责任公司计量中心,昆明650200

出　　处：《仪器仪表学报》2024年第2期193-200,共8页Chinese Journal of Scientific Instrument

基　　金：国家重点研发计划项目(2016YFF0201202);云南省技术创新人才培养对象项目(202205AD160005);云南电网有限责任公司科技项目(YNKJXM20220161)资助。

摘　　要：直流电压互感器的暂态阶跃特性对直流系统控保装置至关重要,首先研究了影响直流电子式电压互感器暂态传变特性的因素,分析了阶跃响应技术参数及其试验装置性能指标要求。基于此,提出一种直流电压互感器阶跃响应特性现场试验方法,研制出基于固态开关的阶跃电压源及试验装置,实现了陡上升、长脉宽方波电压输出和暂态信号的同步测量。试验结果表明,提出的直流电子式电压互感器阶跃响应特性现场试验方法及装置满足标准规定要求,并在实际±500 kV直流工程换流站开展了阶跃响应现场试验,为直流电压互感器的暂态性能测试和评估提供了技术依据。The transient step characteristic of the DC voltage transformer is very important to the control and protection device of the DC system.In this article,firstly,the factors affecting the transient transmission characteristics of DC electronic voltage transformers are studied.The technical parameters of step response and the performance requirements of the test device are analyzed.Based on this,a field test method for the step response characteristics of the DC voltage transformer is proposed.A step voltage source and test device based on a solid-state switch are developed.The synchronous measurement of steep rise,long pulse width square wave voltage output,and transient signal are realized.The test results show that the proposed field test method and device of step response characteristics of the DC electronic voltage transformer meet the requirements of the standard.The field test of step response is carried out in the actual±500 kV DC project converter station,which provides a technical basis for the transient performance test and evaluation of the DC voltage transformer.

关 键 词：阶跃响应 方波电压 固态开关 现场试验 低通滤波器 

分 类 号：TM835.4[电气工程—高电压与绝缘技术]