NDLI: Reducing the Error in Phasor Estimates From Phasorlets in Fault Voltage and Current Signals

Content Provider	IEEE Xplore Digital Library
Author	Serna, J.Adl.O.
Copyright Year	1963
Abstract	An assessment and reduction of the phasor-error infiltration in estimates from phasorlets are proposed in this paper through a generalized least-square formulation of the problem. It introduces a computationally simple and quick estimator that exploits the structure of the sinusoidal model and provides the finest stable phasor estimate, which is very useful for fault voltage signals. It also proposes an extended signal model, by including a dc component into the signal model, in order to allocate the phasor error, when an aperiodic component is present in the input signal. The numerical simulations illustrate the improvement in speed and accuracy of the estimates, which are obtained in decicycles, as well as its still wavering nature, which is considered as the persisting limitation of this technique
Sponsorship	IEEE Instrumentation and Measurement Society Bureau international des poids et mesures IEEE International Bureau of Weights and Measures (BIPM) URSI NBS Agency Ind. Sci. & Technol., Min. Int. Trade & Ind. Sci. Council Japan International Union of Pure and Applied Physics (IUPAP) NIST NRCC National Conference of Standards Laboratories (NCSL) Allen Osborne Associates Andeen-Hagerling, Inc. Ballantine Lab. Inc. Clarke-Hess Communications Research Corp. Fluke Corporation Guildline Instruments Hewlett-Packard Co. Julie Res. Lab. Inc. Keithley Instruments, Inc. Measurements International Ltd. Canada QuadTech Inc. Quantum Design Inc. Rotek Instrum. Corp. Tegam Inc. Tektronix Inc
Starting Page	856
Ending Page	866
Page Count	11
File Size	1603294
File Format	PDF
ISSN	00189456
Volume Number	56
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Voltage Delay estimation Numerical simulation Digital filters Least squares approximation Equations Signal analysis Frequency response Signal generators Frequency estimation signal projection Curve fitting digital filter least squares multirate estimation nonorthogonal basis normal equations oblique planes orthogonal decomposition phasor estimation phasorlets
Content Type	Text
Resource Type	Article
Subject	Instrumentation Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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