The Control Technology of the Z-Source Three-Phase Four-Leg Inverter Based on Computer Simulation

Ming Su; Xue Yan Ma; Yan Sun

doi:10.4028/www.scientific.net/AMR.981.688

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 981The Control Technology of the Z-Source Three-Phase...

The Control Technology of the Z-Source Three-Phase Four-Leg Inverter Based on Computer Simulation

Abstract:

Z-source inverter can boost the voltage of the DC-side, allow the two switches of the same leg conducting at the same time and it has some other advantages. The zero-sequence current flows through the fourth leg of the three-phase four-leg inverter so the three-phase four-leg inverter can work with unbalanced load. This paper presents a Z-source three-phase four-leg inverter which combines a Z-source network with three-phase four-leg inverter. The circuit uses simple SPWM modulation technique and the fourth leg uses fully compensated control method. The inverter can maintain a symmetrical output voltage when the proposed scheme under the unbalanced load.

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Periodical:

Advanced Materials Research (Volume 981)

Pages:

688-694

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.981.688

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Online since:

July 2014

Authors:

Ming Su*, Xue Yan Ma, Yan Sun

Keywords:

Imbalanced Voltage, Three-Phase Four-Leg Inverter, Unbalanced Load, Z-Source Inverter

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