Title :
Structural properties of the SOGI system for parameters estimation of a biased sinusoid
Author :
Fedele, Giuseppe ; Ferrise, Andrea ; Frascino, Domenico
Author_Institution :
Dipt. di Elettron., Inf. e Sist., Univ. della Calabria, Rende, Italy
Abstract :
In this paper, a real-time method, based on the Second Order Generalized Integrator (SOGI), is presented to estimate amplitude, frequency, phase and offset of a biased sinusoidal signal. The estimation is performed by simple straightforward explicit formulas involving the unknown signal and output signals measurements of the SOGI system. Numerical experiments are shown that confirm the strength of the method in a wide range of signal conditions, such as step and sweep changes in frequency.
Keywords :
frequency estimation; real-time systems; signal processing; waveform generators; SOGI system; amplitude estimation; biased sinusoidal signal; frequency estimation; parameters estimation; phase estimation; real-time method; second order generalized integrator; structural properties; Amplitude estimation; Biomedical engineering; Biomedical measurements; Frequency estimation; Parameter estimation; Phase estimation; Power system relaying; Resonant frequency; Signal generators; Voltage; adaptive control; second-order generalized integrator; sinusoidal signal estimation;
Conference_Titel :
Environment and Electrical Engineering (EEEIC), 2010 9th International Conference on
Conference_Location :
Prague
Print_ISBN :
978-1-4244-5370-2
Electronic_ISBN :
978-1-4244-5371-9
DOI :
10.1109/EEEIC.2010.5490432
