摘要
对传统变电站与数字化变电站中计量系统进行比较,阐述了电子式互感器和智能电能表的结构原理,对电子式互感器和智能电能表校验的原理和方式进行了介绍,电子式互感器的输出形式为IEC61850-9-1数字信号帧,智能电能表通过此信号帧进行电能计量,其工作原理和接口方式都发生了本质的改变。
Compared with metering system in traditional substation, the paper analyzes the principle and structure of electronic transformer and smart energy meter. The output of electronic transformer is digital frame basic on IEC61850-9-1, and the smart energy meter calculates the power directly according to the digital signal frame. The working principles and interface methods have changed essentially. Therefore, the paper analyzes and researches the calibration principle and mode of electronic transformer and smart energy meter. It has good guidance for the research of metering system and the development of calibration technology.
出处
《电力需求侧管理》
2012年第1期46-49,共4页
Power Demand Side Management
关键词
数字化变电站
电子式互感器
智能电能表
合并单元
校验技术
sdigital substation
electronic transformer
smart energy meter
merging unit
calibration technology
