NDLI: A Power Electrical Signal Tracking Strategy Based on the Modulating Functions Method

Content Provider	IEEE Xplore Digital Library
Author	Fedele, G. Picardi, C. Sgro, D.
Copyright Year	1982
Abstract	The number of pieces of equipment based on static converters such as uninterrupted power systems, series or shunt compensators, and distributed generation systems is increasing in the actual power distribution systems. For correct operation in grid-connected condition, these equipment need the information about amplitude, phase angle, and frequency of the grid fundamental voltages and currents. Since noise, harmonic pollution, and frequency variations are common problems in the utility grid, then it is necessary to have systems able to extract information about the fundamental values from highly distorted signals. For these reasons, robust and accurate estimation and synchronization methods are necessary to obtain the aforementioned information also in noise environmental. This paper presents a power electrical signal tracking strategy consisting in the combined use of a simple and robust frequency estimation method based on modulating functions and an orthogonal system generator including the second-order generalized integrator. The proposed strategy has the advantages of a fast and accurate signal tracking capability and a good rejection to noise due to the low-pass filter properties of the modulating functions. The effectiveness of the proposed method is validated through comparisons with existing methods performing simulated and laboratory experiments.
Sponsorship	IEEE Industrial Electronics Society
Starting Page	4079
Ending Page	4087
Page Count	9
File Size	987473
File Format	PDF
ISSN	02780046
Volume Number	56
Issue Number	10
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-10-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power system harmonics Frequency Noise robustness Static power converters Uninterruptible power systems Distributed control Power distribution Voltage Power harmonic filters Pollution phase-locked loop (PLL) Frequency detection grid synchronization modulating functions
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Electrical and Electronic Engineering Computer Science Applications

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