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

Autor: Xue Yan Ma, Yan Sun, Ming Su
Rok vydání: 2014
Předmět:
Zdroj: Advanced Materials Research. 981:688-694
ISSN: 1662-8985
DOI: 10.4028/www.scientific.net/amr.981.688
Popis: 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.
Databáze: OpenAIRE