NDLI: Power system frequency estimation in the shortened measurement time

Content Provider	IEEE Xplore Digital Library
Author	Agrez, D.
Copyright Year	2001
Description	Author affiliation: Fac. of Electr. Eng., Ljubljana Univ., Slovenia (Agrez, D.)
Abstract	An algorithm for fast measurement and estimation of power system frequency is presented. The frequency is calculated by an interpolation of the amplitude coefficients of the discrete Fourier transform. An analysis is made to study the influence of leakage effect and a number of sampling points when the rectangular window and the Hanning window are used. Algorithms are proposed for two cases: the measurement time is an integer multiple of the fundamental period of the power system, and it is below one period. Interpolations with longer time of measurement and with larger number of points decrease the systematic errors. When the time is shortened below the signal period, the DC coefficients are taken into account. If the sinusoidal signal is sampled at 64 samples per measurement interval, the proposed method achieves accuracy in measuring the frequency under a hundreth of Hz.
Sponsorship	IEEE Instrum. & Meas. Soc.
Starting Page	1094
Ending Page	1098
File Size	416640
Page Count	5
File Format	PDF
ISBN	0780366468
ISSN	10915281
DOI	10.1109/IMTC.2001.928249
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-05-21
Publisher Place	Hungary
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power system measurements Frequency estimation Power measurement Frequency measurement Time measurement Discrete Fourier transforms Interpolation Power system stability Distortion measurement Power system analysis computing
Content Type	Text
Resource Type	Article
Subject	Instrumentation Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
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
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in