电力系统自动化2012，Vol.36Issue(1)：71-74,111,5.
基于Sage-Husa卡尔曼滤波的三相电压暂降检测
Three-phase Voltage Sag Detection Based on Sage-Husa Kalman Filtering
薛尚青 1蔡金锭1
作者信息
- 1. 福州大学电气工程与自动化学院,福建省福州市350108
- 折叠
摘要
Abstract
A novel method for detecting voltage sags is proposed for three-phase three-wire power systems.The detecting method which uses the 90°-leading-phase-shift operator is derived from instantaneous symmetrical components theory and is constructed on the stationary and orthogonal αβ reference frame.Detection of positive and negative components is decoupled.Sage-Husa Kalman filtering is used to generate in-quadrature signals and serves as a filter for fundamental component detection.Euclidean vector norm is adopted to locate voltage sag and reset Kalman filtering parameters.Simulation results show that the proposed method has advantages of fast response and high steady accuracy and verify the correctness and feasibility of the proposed method.关键词
电压暂降检测/瞬时对称分量法/90°超前移相算子/卡尔曼滤波/向量范数Key words
voltage sag detection/instantaneous symmetrical components/90°-leading-phase-shift operator/Kalman filtering/vector norm分类
信息技术与安全科学引用本文复制引用
薛尚青,蔡金锭..基于Sage-Husa卡尔曼滤波的三相电压暂降检测[J].电力系统自动化,2012,36(1):71-74,111,5.
