NDLI: Adaptive quadrant filter based phase locked loop system

Content Provider	IEEE Xplore Digital Library
Author	Shi, L. Crow, M.L.
Copyright Year	2010
Description	Author affiliation: Electrical & Computer Engineering Department at the Missouri University of Science and Technology, 1870 Miner Circle, Rolla, 65409, USA (Shi, L.; Crow, M.L.)
Abstract	Phase-Locked-Loop (PLL) is one of the key technologies extensively used in grid connected power electronics system. A good PLL system can detect the grid phase angle and frequency fast and accurately, and additionally it can extract the positive sequence (or fundamental component for single phase system) exactly. In real applications, source signal (voltage or current) sensed for PLL usually includes harmonic distortion, unbalanced components, noises and frequency variations. Conventional PLL strategy cannot solve all the problems, especially the unbalanced and harmonic distortion. There is a trade-off between the dynamic response and phase angle tracking accuracy. Different PLL solutions are proposed in literature in recent years. The general considerations for these different approaches are to design positive sequence estimator to eliminate the negative sequence components and use filters to filter out the higher order harmonic distortions from the PLLs. In this paper, an adaptive quadrature filter based synchronous reference frame PLL (SRF-PLL) with positive sequence estimation feature is presented. The proposed PLL has good performances in filtering harmonic, eliminating unbalanced components and auto-adjusting frequency change. The simulation model is built in Matlab/simulink and the simulation results are given to verify the mathematical analysis.
Starting Page	1
Ending Page	7
File Size	556171
Page Count	7
File Format	PDF
ISBN	9781424480463
e-ISBN	9781424480470
DOI	10.1109/NAPS.2010.5619969
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-09-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Band pass filters Phase locked loops Power harmonic filters Low pass filters Power filters Harmonic distortion adaptive quadrature filter (AQF) Phase looked loop (PLL) synchronous reference frame (SRF) unbalanced voltage
Content Type	Text
Resource Type	Article

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