NDLI: Phase Estimation of Harmonically Distorted Grid Voltage by Frequency Lock

Content Provider	IEEE Xplore Digital Library
Author	Krieger, A.W. Salmon, J.C.
Copyright Year	2007
Description	Author affiliation: Univ. of Alberta, Edmonton (Krieger, A.W.; Salmon, J.C.)
Abstract	A novel method of synchronization is proposed for the estimation of the phase of the fundamental component of harmonically distorted power line voltage. Whereas commonly used phase synchronization techniques depend on a multiplier to measure phase discrepancy, which results in frequency components causing ripple in the output phase estimation, the proposed method measures the phase error by directly subtracting the incoming signal from a one-cycle delayed copy of the signal. For a harmonically distorted signal, this produces a zero steady state error signal, and a ripple-free estimate of the line voltage phase. The principal feedback loop in the proposed method aims only at frequency tracking, whereas a sliding correlation is used to extract an estimate of the line voltage fundamental component, resulting in faster overall response, because the output estimate is not itself used in any feedback loop. Simulation results are presented to validate this proposed method.
Starting Page	977
Ending Page	980
File Size	157162
Page Count	4
File Format	PDF
ISBN	9781424407545
DOI	10.1109/ISIE.2007.4374730
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-04
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Phase estimation Harmonic distortion Phase distortion Voltage Frequency estimation Frequency synchronization Distortion measurement Frequency measurement Phase measurement Feedback loop
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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