NDLI: A new precise measurement method on interharmonics

Content Provider	IEEE Xplore Digital Library
Author	Jing Wu Kaifeng Qu Wei Zhao
Copyright Year	2009
Description	Author affiliation: Sch. of Autom. Sci. & Electr. Eng., Beihang Univ., Beijing, China (Jing Wu) \|\| Dept. of Electr. Eng., Tsinghua Univ., Beijing, China (Kaifeng Qu; Wei Zhao)
Abstract	For the signal containing the inter-harmonics, if the sample number is not equal to integer times of the signal period, the spectral leakages will occur in harmonic analysis based on DFT and affect the measurement accuracy. To improve the accuracy, different from other correction methods in which the long-range leakages are reduced by windowing the signal, a new interpolation algorithm is presented to correct both the long-range leakage and the short-range leakage at one time. The simulation results and experiment results show the measurement accuracy of the presented method is very high. The new algorithm is suitable for the precise harmonic analysis.
Sponsorship	IEEE Instrum. Meas. Soc.
Starting Page	1590
Ending Page	1593
File Size	523918
Page Count	4
File Format	PDF
ISBN	9781424433520
ISSN	10915281
DOI	10.1109/IMTC.2009.5168708
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-05-05
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power system harmonics Interpolation Discrete Fourier transforms Electric variables measurement Sampling methods Harmonic analysis Frequency measurement Phase measurement Signal sampling Instrumentation and measurement accuracy DFT interpolation algorithm leakage
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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