Space-vector-modulated three-level inverters with a single Z-source network

Effah, Francis Boafo; Wheeler, Patrick; Clare, Jon C.; Watson, Alan James

Abstract

The Z-source inverter is a relatively recent converter topology that exhibits both voltage-buck and voltage-boost capability. The Z-source concept can be applied to all dc-to-ac, ac-to-dc, ac-to-ac, and dc-to-dc power conversion whether two-level or multilevel. However, multilevel converters offer many benefits for higher power applications. Previous publications have shown the control of a Z-source neutral point clamped inverter using the carrier based modulation technique. This paper presents the control of a Z-source neutral point clamped inverter using the space vector modulation technique. This gives a number of benefits, both in terms of implementation and harmonic performance. The adopted approach enables the operation of the Z-source arrangement to be optimised and implemented digitally without introducing any extra commutations. The proposed techniques are demonstrated both in simulation and through experimental results from a prototype converter.

Citation

Effah, F. B., Wheeler, P., Clare, J. C., & Watson, A. J. (in press). Space-vector-modulated three-level inverters with a single Z-source network. IEEE Transactions on Power Electronics, 28(6), https://doi.org/10.1109/TPEL.2012.2219627

• Journal Article Type: Article
• Acceptance Date: Sep 4, 2012
• Online Publication Date: Oct 19, 2012
• Deposit Date: Jul 11, 2017
• Publicly Available Date: Jul 11, 2017
• Journal: IEEE Transactions on Power Electronics
• Print ISSN: 0885-8993
• Electronic ISSN: 0885-8993
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 28
• Issue: 6
• DOI: https://doi.org/10.1109/TPEL.2012.2219627
• Keywords: Z-source inverter, Neutral Point Clamped inverter, Space Vector Modulation, buck-boost
• Public URL: https://nottingham-repository.worktribe.com/output/711795
• Publisher URL: http://ieeexplore.ieee.org/document/6307882/?tp=&arnumber=6307882&contentType=Journals%20%26%20Magazines&searchField%3DSearch_All%26queryText%3Dspace-vector-modulated%20three-level
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