Please use this identifier to cite or link to this item: https://hdl.handle.net/1822/67422

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dc.contributor.authorAfonso, João L.por
dc.contributor.authorPinto, J. G.por
dc.contributor.authorGoncalves, Henriquepor
dc.date.accessioned2020-10-09T09:25:39Z-
dc.date.available2020-10-09T09:25:39Z-
dc.date.issued2013-
dc.identifier.citationJoão L. Afonso, J. G. Pinto, Henrique Gonçalves, “Active Power Conditioners to Mitigate Power Quality Problems in Industrial Facilities”, Book Chapter 5 in “Power Quality Issues”, Dr. Ahmed Zobaa (Ed.), InTech, 2013, pp. 105-137.por
dc.identifier.isbn978-953-51-1068-2-
dc.identifier.urihttps://hdl.handle.net/1822/67422-
dc.description.abstract[Excerpt] Introduction: Non-linear loads are commonly present in industrial facilities, service facilities, office build‐ings, and even in our homes. They are the source of several Power Quality problems such asharmonics, reactive power, flicker and resonance [1-3]. Therefore, it can be observed an in‐creasing deterioration of the electrical power grid voltage and current waveforms, mainlydue to the contamination of the system currents with harmonics of various orders, includinginter-harmonics. Harmonic currents circulating through the line impedance produces distor‐tion in the system voltages (see Figure 1). Moreover, since many of the loads connected tothe electrical systems are single-phase ones, voltage unbalance is also very common in three-phase power systems [2]. The distortion and unbalance of the system voltages causes severalpower quality problems, including the incorrect operation of some sensitive loads [4,5]. Fig‐ure 1 presents a power system with sinusoidal source voltage (vS) operating with a linearand a non-linear load. The current of the non-linear load (iL1) contains harmonics. The har‐monics in the line-current (iS) produce a non-linear voltage drop (∆v) in the line impedance,which distorts the load voltage (vL). Since the load voltage is distorted, even the current atthe linear load (iL2) becomes non-sinusoidal. [...]por
dc.description.sponsorshipThis work is financed by FEDER Funds, through the Operational Program for Competitiveness Factors – COMPETE, and by National Funds through FCT – Foundation for Scienceand Technology, under the projects: DEMTEC/020/1/03, PTDC/EEA-EEL/104569/2008, andFCOMP-01-0124-FEDER-022674.por
dc.language.isoengpor
dc.publisherInTechpor
dc.relationinfo:eu-repo/grantAgreement/FCT/5876-PPCDTI/104569/PTpor
dc.rightsopenAccesspor
dc.titleActive power conditioners to mitigate power quality problems in industrial facilitiespor
dc.typebookPartpor
dc.peerreviewedyespor
dc.relation.publisherversionhttp://www.intechopen.com/download/pdf/44216por
oaire.citationStartPage105por
oaire.citationEndPage137por
dc.identifier.doi10.5772/53189por
dc.subject.fosEngenharia e Tecnologia::Engenharia Eletrotécnica, Eletrónica e Informáticapor
sdum.bookTitlePower Quality Issuespor
Appears in Collections:CAlg - Livros e capítulos de livros/Books and book chapters

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