Title :
A new quasi Newton filtering technique for power system frequency estimation and harmonics/interharmonics rejection
Author :
Sadinezhad, Iman ; Agelidis, Vassilios G.
Author_Institution :
Univ. of New South Wales, Sydney, NSW, Australia
Abstract :
This paper presents a new technique to estimate power system frequency and peak value of current/voltage waveforms based on the quasi Newton (QN) technique. The QN method is used to implement a nonlinear filter which estimates power system frequency, rejects harmonics/inter-harmonics, and track the peak value of the voltage/current waveform. The performance of the proposed technique in presence of harmonics, inter-harmonics, dc offset, and power electronics switching operation has been evaluated by presenting a selection of simulation results.
Keywords :
Newton method; filtering theory; frequency estimation; harmonics suppression; nonlinear filters; power system harmonics; DC offset; QN method; current-voltage waveforms; harmonics-interharmonics rejection; nonlinear filter; power electronics switching operation; power system frequency estimation; quasi Newton filtering technique; Estimation; Frequency estimation; Harmonic analysis; Power harmonic filters; Steady-state; Adaptive filters; frequency estimation; power system harmonics/interharmonics; quasi Newton method;
Conference_Titel :
Harmonics and Quality of Power (ICHQP), 2010 14th International Conference on
Conference_Location :
Bergamo
Print_ISBN :
978-1-4244-7244-4
Electronic_ISBN :
978-1-4244-7245-1
DOI :
10.1109/ICHQP.2010.5625377
