Publication:
An implementation of Short Time Fourier Transform for Harmonic Signal Detection

cris.author.scopus-author-id 56938513200
cris.author.scopus-author-id 22634128600
cris.author.scopus-author-id 56109256400
cris.author.scopus-author-id 56602788600
cris.author.scopus-author-id 56426995200
cris.author.scopus-author-id 26428387900
cris.virtual.department Universiti Malaysia Perlis
cris.virtual.department Universiti Malaysia Perlis
cris.virtual.department Universiti Malaysia Perlis
cris.virtualsource.department c074e684-00ff-44f4-a69a-cc19c7850721
cris.virtualsource.department 2dab9ecc-7fc7-4448-b0bf-3021c88519e2
cris.virtualsource.department 38d41dbc-f544-4938-ae6f-ff73c5f7d1ac
dc.contributor.author Basir M.S.S.M.
dc.contributor.author Rizalafande Che Ismail
dc.contributor.author Yusof K.H.
dc.contributor.author Katim N.I.A.
dc.contributor.author Mohd Nazrin Md Isa
dc.contributor.author Siti Zarina Md Naziri
dc.date.accessioned 2024-10-03T00:04:19Z
dc.date.available 2024-10-03T00:04:19Z
dc.date.issued 2021-03-01
dc.description.abstract Power electronic components has the tendency to induce a non-linear signal called harmonic distortion. Without proper monitoring tools, harmonic distortion can harm sensitive electronic equipment, and in worse case scenarios, may lead to unreliable operation of controller and misalignment of motoring unit. This matter can be compromised by taking safety precaution, by identifying the level of harmonic rise in the electrical system. This paper presents analysis on different characteristics of harmonic signal using frequency distribution technique, namely Fourier transform (FT), and proposal of time-frequency distribution (TFD) technique, which is a short time Fourier transform (STFT). The novelty of utilizing STFT is the analyzed signal is represented in both time and frequency marginals, hence providing extra information of the spectral over the time. Simulation was carried out using MATLAB, by means the results consisting of the magnitude of multi-frequency components signal were represented in time-frequency representation (TFR). From the TFR, parameters such as instantaneous RMS fundamental voltage, V1RMS(t), instantaneous RMS voltage, VRMS(t), instantaneous total waveform distortion, VTWD(t), instantaneous total harmonic distortion, VTHD(t) and instantaneous total nonharmonic distortion, VTnHD(t) had been extracted. The performance of different harmonic signals such as normal, single-level harmonic, multi-level harmonic, short duration harmonic and interharmonic had been analyzed. The performance based on absolute percentage error (APE) index indicated average of 93% of correctness using 256 window length in STFT measurement.
dc.identifier.doi 10.1088/1742-6596/1755/1/012013
dc.identifier.scopus 2-s2.0-85102400687
dc.identifier.uri https://hdl.handle.net/20.500.14170/8401
dc.relation.grantno undefined
dc.relation.ispartof Journal of Physics: Conference Series
dc.relation.ispartofseries Journal of Physics: Conference Series
dc.relation.issn 17426588
dc.rights open access
dc.title An implementation of Short Time Fourier Transform for Harmonic Signal Detection
dc.type Conference Proceeding
dspace.entity.type Publication
oaire.citation.issue 1
oaire.citation.volume 1755
oairecerif.affiliation.orgunit Politeknik Mukah
oairecerif.affiliation.orgunit Albukhary International University
oairecerif.affiliation.orgunit Management & Science University, Malaysia
oairecerif.affiliation.orgunit MAHSA University
oairecerif.affiliation.orgunit Universiti Malaysia Perlis
oairecerif.affiliation.orgunit Universiti Malaysia Perlis
oairecerif.author.affiliation #PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.author.affiliation Universiti Malaysia Perlis
oairecerif.author.affiliation #PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.author.affiliation #PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.author.affiliation Universiti Malaysia Perlis
oairecerif.author.affiliation Universiti Malaysia Perlis
oairecerif.citation.number 012013
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person.identifier.orcid #PLACEHOLDER_PARENT_METADATA_VALUE#
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person.identifier.scopus-author-id 56938513200
person.identifier.scopus-author-id 22634128600
person.identifier.scopus-author-id 56109256400
person.identifier.scopus-author-id 56602788600
person.identifier.scopus-author-id 56426995200
person.identifier.scopus-author-id 26428387900
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