Analysis of Carrier-Based PWM Patterns for a Three-Phase Five-Level Bidirectional Buck +Boost-Type Rectifier

Lisandra Kittel Ries, Thiago Batista Soeiro, Márcio Silveira Ortmann, Marcelo Lobo Heldwein

Publikation: Beitrag in FachzeitschriftArtikelBegutachtung

19 Zitate (Scopus)

Abstract

This paper analyzes three different carrier-based modulation patterns applied to a three-phase high-power-factor-corrected (PFC) five-level buck+boost-type converter acting as an interface between dc distribution systems and an ac grid. The modulation is analyzed employing the space vectors theory so that the achievable performance is demonstrated. The main advantage of the analyzed modulation strategy is its simplicity, which makes it suitable for digital signal controller (DSC) implementations. This seems straightforward for voltage source converters, but is a challenge for current-multilevel converters that typically employ field-programmable gate array devices to achieve better harmonic distortion performance. This is due to modern power electronics DSCs being typically designed for other converter topologies. The power converter is constructed with two phase-shift-modulated six-switch buck-type PFC converters, paralleled by interphase transformers, and an inverting circuit. The system features: bidirectional current carrying capability; relatively low parts count; high utilization of the semiconductors; and low current and voltage ripple at its terminals. The principle of operation, detailed description, analysis of the modulation strategy, and dimensioning equations for three different power circuit realizations are described in this paper assuming the analyzed modulation patterns. The feasibility of the presented converter is demonstrated by means of a constructed hardware prototype.

OriginalspracheEnglisch
Aufsatznummer7593374
Seiten (von - bis)6005-6017
Seitenumfang13
FachzeitschriftIEEE Transactions on Power Electronics
Jahrgang32
Ausgabenummer8
DOIs
PublikationsstatusVeröffentlicht - Aug. 2017
Extern publiziertJa

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