Title :
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
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;
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
DOI :
10.1109/ECCE.2012.6342447
