3-D SVM for Three-Phase Open-End Winding Drives with Common DC Bus

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Detail(s)

Original languageEnglish
Pages (from-to)9340-9346
Journal / PublicationIEEE Transactions on Power Electronics
Volume38
Issue number8
Online published8 May 2023
Publication statusPublished - Aug 2023

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Abstract

Existing modulation strategies for three-phase open-end winding drives (OWDs) with common dc bus usually conduct the modulations for α-β subspace and zero-sequence loop (ZSL) separately, which cannot reflect the relationship between α-β subspace and ZSL and fully utilize the dc bus voltage. To this end, this paper proposes a three-dimensional space vector modulation (3-D SVM) strategy for three-phase OWDs with common dc bus, which can be conducted in both a-b-c and α-β-z coordinates, leading to full utilization of dc bus voltage and convenient overmodulation adjustment. Voltage vector distributions of OWD in the 3-D spaces with a-b-c and α-β-z coordinates are revealed at first. Subsequently, the three adjacent voltage vectors for reference voltage vector synthesis are selected based on the relationship between leg-voltage potentials, avoiding the complex tetrahedron identification in existing 3-D SVMs for other drive topologies. In addition, overmodulation in different coordinates is also investigated. Experimental results are presented to validate the feasibility of the proposed 3-D SVM for OWDs with common dc bus. © 2023 IEEE

Research Area(s)

  • 3-D space vector modulation, Drives, Electric potential, Modulation, Open-end winding drives, Support vector machines, Switches, Voltage, voltage vector selection, Windings, zero-sequence loop

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