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AuthorElserougi, A.
AuthorMassoud, Ahmed
AuthorAhmed, S.
Available date2022-03-23T06:57:33Z
Publication Date2018
Publication NameJournal of Power Electronics
ResourceScopus
Identifierhttp://dx.doi.org/10.6113/JPE.2018.18.1.116
URIhttp://hdl.handle.net/10576/28758
AbstractConventionally, in order to reduce the ac components of the dc-link capacitors of the two-level Half-Bridge Voltage Source Inverter (HB-VSI), high dc-link capacitances are required. This necessitates the employment of short-lifetime and bulky electrolytic capacitors. In this paper, an analysis for the performance of low dc-link capacitances-based HB-VSI is presented to elucidate its ability to generate an enhanced fundamental output voltage magnitude without increasing the voltage rating of the involved switches. This feature is constrained by the load displacement factor. The introduced enhancement is due to the ac components of the capacitors' voltages. The presented approach can be employed for multi-phase systems through using multi single-phase HB-VSI(s). Mathematical analysis of the proposed approach is presented in this paper. To ensure a successful operation of the proposed approach, a closed loop current controller is examined. An expression for the critical dc-link capacitance, which is the lowest dc-link capacitance that can be employed for unipolar capacitors' voltages, is derived. Finally, simulation and experimental results are presented to validate the proposed claims.
SponsorQatar Foundation; Qatar National Research Fund
Languageen
PublisherKorean Institute of Power Electronics
SubjectCapacitors
Electric inverters
Electrolytic capacitors
Dc link capacitor
DC-link capacitance
Half bridge
Load displacements
Mathematical analysis
Multi phase systems
Output voltages
Voltage ratings
Capacitance
TitleFundamental output voltage enhancement of half-bridge voltage source inverter with low DC-link capacitance
TypeArticle
Pagination116-128
Issue Number1
Volume Number18
dc.accessType Abstract Only


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