Tracking Voltage Flicker Envelope Using Cumalant-based RLS Algorithm with Variable Forgetting Factor

被引：1
|
作者：
Chen, Xiaodong [1 ]
Ma, Qian [1 ]
Qu, Zuyi [1 ]
Liu, Miao [1 ]
Jin, Xiaoming [1 ]
Li, Dalu [1 ]
Chen, Han [2 ]
机构：
[1] Liaoning Elect Power Co Ltd, Liaoning, Peoples R China
[2] Shenyang Elect Supply Co Liaoning, Shenyang, Peoples R China
来源：
MECHANICAL ENGINEERING, MATERIALS AND ENERGY II | 2013年 / 281卷
关键词：
Gaussian noise; higher-order Cumulant; RLS algorithm; variable forgetting factor; voltage flicker envelope; HILBERT TRANSFORM;
D O I：
10.4028/www.scientific.net/AMM.281.568
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The cumalant-based RLS algorithm with variable forgetting factor is introduced in this paper as effective approach for tracking the voltage flicker envelope. The improved RLS algorithm uses the fourth-order cumulant-based mean-squared-error (MSE) criterion in place of correlation-based MSE criterion, in order to suppress the Gaussian noise. For tracking nonstationary voltage flicker waveform, variable forgetting factor (VFF) can be applied to adjust the tracking performance and convergence performance of algorithm. Two cases of flicker with constant amplitude and frequency and varying amplitude and frequency are used to verify the performance of algorithm.
引用
收藏
页码：568 / +
页数：2
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