Recover the Low-Frequency Primary Voltage of Electromagnetic Voltage Transformers with LabVIEW
编号:122
访问权限:仅限参会人
更新:2022-09-10 12:47:00
浏览:489次
张贴报告
摘要
Electromagnetic voltage transformer (EVT) is a piece of crucial voltage measurement equipment in power system. However, the core of EVT may suffer from deep saturation with the excitation of power-frequency overvoltage, ferroresonance, DC bias, and energization. Once the core is deeply saturated, the secondary voltage of the EVT might be distorted, and the relative error can step up to 60%. Thus, the system voltage cannot be correctly recorded using EVTs. In this paper, we propose a method of recovering the low-frequency primary voltage with distorted secondary voltage of EVTs through designing a system with LabVIEW Based on the National Instrument (NI) platform.
关键词
electromagnetic voltage transformer, deep saturation, LabVIEW.
稿件作者
Junhao Lei
Chongqing University
Ming Yang
Chongqing University
发表评论