电子式电压互感器及其在智能变电站中的应用

摘要

With the vigorous development of the smart grid, an inevitable trend is the electronic transformer to replace the traditional electromagnetic and capacitive transformer. In this paper the classification of electronic voltage transformer and several electronic voltage transformer based on new principles are described ,and performances of active and passive electronic voltage transformer performance are analyzed, by giving commonness and differences in the measurement quality , digital applications ,transient performance etc., active electronic voltage transformer has greater advantages at the construction of intelligent substation at present, but passive electronic voltage transformers have more research value. This paper summarizes the study of the electronic transformer situation ,sums up the smart electronic transformer substation construction application status.%随着智能变电站的大量建设，传统的电磁式和电容式电压互感器已经不能满足智能电网的发展要求，电子式互感器必将成为未来电压互感器发展的主流。文中在描述电子式电压互感器的分类及几种新型电子式电压互感器基本原理的基础上，对有源和无源电子式电压互感器的性能进行了分析，给出了两者在测量品质、数字化应用、暂态性能等方面的共性与差别，指出有源电子式电压互感器目前在智能变电站建设中更有应用优势，而为了智能电网的长足发展，仍然需要加强无源电子式电压互感器的研究。同时，对我国电子式互感器的研究现状进行了总结，特别是归纳了电子式互感器在智能变电站建设中的应用现状。