Application of Recursive Least Square (RLS) algorithm with variable forgetting factor for frequency components estimation in a generic input signal

Author

Beza, Mebtu ; Bongiorno, Massimo

Author_Institution

Dept. of Energy & Environ., Chalmers Univ. of Technol., Gothenburg, Sweden

fYear

2012

fDate

15-20 Sept. 2012

Firstpage

2164

Lastpage

2171

Abstract

Signal estimation is important for protection, system study and control purposes. This paper deals with the application of a Recursive Least Square (RLS) algorithm with variable forgetting factor for estimation of frequency components in a generic input signal. Application areas such as synchronization and control in three-phase and single-phase systems for various grid conditions as well as estimation of harmonic and subsynchronous components will be discussed. Simulation and experimental results will be used to evaluate the dynamic performance of the algorithm.

Keywords

frequency estimation; least squares approximations; power grids; power system protection; power system stability; recursive estimation; signal processing; RLS algorithm; frequency component estimation; generic input signal; harmonic estimation; low-frequency electromechanical oscillation; recursive least square algorithm; signal estimation; single-phase systems; subsynchronous components; synchronization; three-phase systems; variable forgetting factor; Adaptation models; Estimation; Frequency estimation; Harmonic analysis; Oscillators; Steady-state; Transient analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Congress and Exposition (ECCE), 2012 IEEE

Conference_Location

Raleigh, NC

Print_ISBN

978-1-4673-0802-1

Electronic_ISBN

978-1-4673-0801-4

Type

conf

DOI

10.1109/ECCE.2012.6342447

Filename

6342447