基于站用电供能的直流电压互感器冗余供电及抗干扰技术研究  

Research on Edundant Power Supply and Anti-interference Technology of DC Voltage Transformer Based on Station Power Supply

作　　者：张旭乐[1] 杨向阳 张浩哲 陈刚[2] ZHANG Xu-le;YANG Xiang-yang;ZHANG Hao-zhe;CHEN Gang(XJ Group Co.,Ltd.,Xuchang 461000,China;Key Laboratory of Electric Energy Measurement of State Grid Corporation of China(Marketing Service Center of State Grid Jiangsu Electric Power Co.,Ltd.),Nanjing 210019,China)

机构地区：[1]许继集团有限公司,河南许昌461000 [2]国家电网公司电能计量重点实验室(国网江苏省电力有限公司营销服务中心),江苏南京210019

出　　处：《变压器》2023年第6期29-34,共6页Transformer

基　　金：国网江苏省电力有限公司科技项目-直流测量装置采集终端优化设计及现场标源一体化校验技术研究(J2021074)。

摘　　要：当前国内特高压直流工程应用的直流电压互感器基本均为数字量输出,设备主要区别在于完成数字信号转换的装置是集成安装于高压侧还是集成安装于二次控制室。如果数字信号转换装置集成安装于高压侧则需要对其进行供能,目前国内主流的供能方案有:激光供能和站用直流电供能。针对激光供能存在的长期工作后激光源功率下降和寿命缩短等隐患,本文笔者基于站用直流电源供电方案,研究其冗余可靠供电及抗干扰技术,最后通过对电源端口进行电磁干扰试验,验证电源模块设计的可靠性,为特高压直流工程应用提供重要保证。At present,the DC voltage transformers used in UHVDC projects in China are basically digital output,the main difference of the equipment is whether the devices that complete digital signal conversion are integrated on the high-voltage side or in the secondary control room.If the digital signal conversion device or module is integrated and installed on the high-voltage side,it needs to be powered.At present,the mainstream energy supply schemes in China include laser power supply and Station DC power supply.In view of the hidden dangers of laser power supply such as power reduction and life shortening after long-term operation,based on the station DC power supply scheme.In this paper,based on the station DC power supply scheme,the redundant reliable power supply and anti-interference technology are studied.Finally,the reliability of the power module design is verified through the electromagnetic interference test of the power port,which provides an important guarantee for the application of ultra-high voltage DC projects.

关 键 词：直流电压互感器 站用电 就地数字化 冗余 

分 类 号：TM451[电气工程—电器]