Book Review: Three-phase Electrical Machine Systems: Computer Simulation:

1994 ◽  
Vol 31 (4) ◽  
pp. 356-356
Author(s):  
Math Bollen
Keyword(s):  
Computer Simulation ◽  
Electrical Machine ◽  
Three Phase ◽  
Machine Systems

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

2014 ◽  
Vol 981 ◽  
pp. 688-694
Author(s):  
Ming Su ◽  
Xue Yan Ma ◽  
Yan Sun
Keyword(s):  
Computer Simulation ◽  
Output Voltage ◽  
Control Method ◽  
Control Technology ◽  
Modulation Technique ◽  
Three Phase ◽  
Unbalanced Load ◽  
Zero Sequence ◽  
Current Flows

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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