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A Near-State Three-Dimensional Space Vector Modulation for a Three-Phase Four-Leg Voltage Source Inverter

Lookup NU author(s): Min Zhang, Dr Dave Atkinson, Dr Bing Ji, Dr Matthew Armstrong, Dr Mingyao Ma


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A near-state three-dimensional space-vector modulation (NS 3-D SVM) switching scheme, which aims to reduce the common-mode noise in a three-phase four-leg voltage source inverter, is proposed. The impact of common-mode noise, which is related to electromagnetic interference issues for a high-voltage level four-leg system, is investigated first. Identification of the section in a 3-D space, selection of the near-state switching vectors, and sequence of the selected switching vectors are then introduced in steps to describe the proposed switching scheme. The proposed switching scheme is based on classical 3-D SVM, producing higher dc-link utilization, less harmonic content, and reduced switching loss compared to sinusoidal PWM. Theory, simulation, and experimental results show that the near-state 3-D SVM can work under both balanced and unbalanced load conditions.

Publication metadata

Author(s): Zhang M, Atkinson DJ, Ji B, Armstrong M, Ma MY

Publication type: Article

Publication status: Published

Journal: IEEE Transactions on Power Electronics

Year: 2014

Volume: 29

Issue: 11

Pages: 5715-5726

Print publication date: 01/11/2014

Online publication date: 14/01/2014

Acceptance date: 15/12/2013

ISSN (print): 0885-8993

ISSN (electronic): 1941-0107

Publisher: IEEE


DOI: 10.1109/TPEL.2013.2297205


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