电子式互感器数字输出校验技术  

Calibration technology for electronic transformers with digital output

作　　者：徐波[1] 张志[2] 

机构地区：[1]南京工程学院电力工程学院,江苏南京211167 [2]华中科技大学电气与电子工程学院,湖北武汉430074

出　　处：《电力自动化设备》2011年第9期147-150,共4页Electric Power Automation Equipment

基　　金：南京工程学院科研基金资助项目~~

摘　　要：针对电子式互感器与传统互感器的原理性差异和电子式互感器数字输出的新特点,分析了数字输出电子式互感器校验的基本原理,指出了其与传统互感器校验的区别并介绍了数字输出校验系统的构成。分析得出标准通道的信号变换、同步方法、校验算法和合并单元的数据帧捕获是数字量输出电子式互感器校验系统的关键技术。在此基础上,提出了电子式互感器在线校验的必要性,对已经研制成功并挂网运行的电子式互感器在线校验的构成特点和关键技术进行了详细分析。分析表明:在线校验系统为观察了解电子式互感器长期运行稳定性提供了一种可行的技术手段。According to the working principle and features of electronic transformer with digital output,its calibration principle and difference from the traditional transformers are pointed out,and the structure of its calibration system is introduced. Analysis shows that the signal transform of standard channel, synchronization method ,calibration algorithm and data frame capture of MU are the key technologies of its calibration system. The necessity of online calibration for electronic transformer with digital output is presented and the developed online calibration system is introduced in structural features and key technologies. Research shows that the online calibration system provides a feasible means to monitor the long-term running stability of electronic transformers.

关 键 词：互感器 数字输出 关键技术 在线校验系统 

分 类 号：TM932[电气工程—电力电子与电力传动]