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

Effah, Francis Boafo, Wheeler, Patrick, Clare, Jon C. and Watson, Alan James (2012) Space-vector-modulated three-level inverters with a single Z-source network. IEEE Transactions on Power Electronics, 28 (6). pp. 2806-2815. ISSN 0885-8993

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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.

Item Type: Article
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Keywords: Z-source inverter, Neutral Point Clamped inverter, Space Vector Modulation, buck-boost
Schools/Departments: University of Nottingham, UK > Faculty of Engineering > Department of Electrical and Electronic Engineering
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Depositing User: Burns, Rebecca
Date Deposited: 11 Jul 2017 13:55
Last Modified: 04 May 2020 16:34

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