Novel sinusoidal pulsewidth modulation schemes for voltage-source inverters with fluctuating input voltage

1988 ◽  
Vol 35 (2) ◽  
pp. 284-294 ◽  
Author(s):  
J.-Y. Lee ◽  
Y.-Y. Sun
2011 ◽  
Vol 60 (4) ◽  
pp. 445-458 ◽  
Author(s):  
Valentin Oleschuk ◽  
Gabriele Grandi

Six-phase motor drive supplied by four voltage source inverters with synchronized space-vector PWMNovel method of space-vector-based pulsewidth modulation (PWM) has been disseminated for synchronous control of four inverters feeding six-phase drive based on asymmetrical induction motor which has two sets of windings spatially shifted by 30 electrical degrees. Basic schemes of synchronized PWM, applied for control of four separate voltage source inverters, allow both continuous phase voltages synchronization in the system and required power sharing between DC-sources. Simulations show a behavior of six-phase system with continuous and discontinuous versions of synchronized PWM.


2013 ◽  
Vol 732-733 ◽  
pp. 1247-1250
Author(s):  
Zhi Lei Yao ◽  
Jia Rong Kan ◽  
Guo Wen Hu

The grid-connected inverters required for distributed generation systems should have high reliability. However, a shoot-through problem, which is a major killer of the reliability of the inverters, exists in the conventional bridge-type voltage-source inverters. In order to solve the aforementioned problem, a non-isolated buck-boost grid-connected inverter with no shoot-through problem is proposed. The hysteresis current control is used. The output voltage of the proposed grid-connected inverter can be larger or lower than the input voltage. The operating principle is illustrated. Simulation verifies the theoretical analysis.


2014 ◽  
Vol 7 (10) ◽  
pp. 2610-2617 ◽  
Author(s):  
Rickard Ekström ◽  
Karin Thomas ◽  
Mats Leijon

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