University of Cagliari
A Suitable PWM for DC-link Voltage Equalization of Three-Level Neutral-Point Clamped Converters
DAMIANO, ALFONSO;MARONGIU, IGNAZIO;PORRU, MARIO;SERPI, ALESSANDRO
2013-01-01
Abstract
A novel DC-link voltage equalization algorithm for Three-Level Neutral-Point-Clamped Converters (NPCs) is presented in this paper. It mainly consists of appropriate pulse width modulation patterns, which are alternatively employed in order to exploit the DC-link capacitors differently, for a given reference voltage space vector. Thus, the most suitable PWM pattern is chosen in each sampling time interval in accordance with DC-link voltage equalization needs, without affecting NPC performances in terms of output voltage and current waveforms. The worth and effectiveness of the proposed equalization algorithm are verified through a simulation study, which refers to the case of a Surface-Mounted Permanent Magnet Synchronous Machine (SPM) fed by a three-phase NPC.
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| P32#2013#IECON#NPC#IEEE_Paper.pdf Solo gestori archivio
Description: A Suitable PWM for DC-link Voltage Equalization of Three-Level Neutral-Point Clamped Converters
Type: versione editoriale
Size 2.93 MB
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| P32#2013#IECON#NPC#PostPrint.pdf Solo gestori archivio
Description: A Suitable PWM for DC-link Voltage Equalization of Three-Level Neutral-Point Clamped Converters (Post Print)
Type: versione post-print
Size 2.89 MB
Format Adobe PDF
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2.89 MB | Adobe PDF | & nbsp; View / Open Request a copy |
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