电测与仪表2017，Vol.54Issue(18)：59-64,71,7.
基于空间矢量的快速电压暂降检测方法
A detection method for fast voltage sag based on space vector
摘要
Abstract
A new detection method for voltage sag based on space vector is presented in this paper.Firstly, the equa-tion of the trajectory of space vector is calculated by applying Clarke Transformation and fast ellipse reconstruction method to the three-phase voltage signals of three different times.Based on the space vector trajectory, voltage sag is detected and the fault phase can be identified.At the same time, the phase angle jump is calculated from the parame-ters of ellipse.Then, the original signal data is shifted according to the phase angle jump, and the depth of voltage sag could be calculated rapidly.The simulation results verify the effectiveness of the proposed method.关键词
电压暂降/空间矢量/椭圆重构Key words
voltage sag/space vector/ellipse reconstruction分类
信息技术与安全科学引用本文复制引用
程志友,马千里,张红飞,李涛..基于空间矢量的快速电压暂降检测方法[J].电测与仪表,2017,54(18):59-64,71,7.基金项目
国家自然科学基金资助项目(61172127) （61172127）
高等学校博士学科点专项科研基金(20113401110006) （20113401110006）
