Three-level space vector PWM in low index modulation region avoiding narrow pulse problem

1994 ◽  
Vol 9 (5) ◽  
pp. 481-486 ◽  
Author(s):  
H.L. Liu ◽  
G.H. Cho
Keyword(s):  
Space Vector Pwm ◽  
Space Vector ◽  
Modulation Region ◽  
Index Modulation

Six-phase motor drive supplied by four voltage source inverters with synchronized space-vector PWM

2011 ◽  
Vol 60 (4) ◽  
pp. 445-458 ◽  
Author(s):  
Valentin Oleschuk ◽  
Gabriele Grandi
Keyword(s):  
Continuous Phase ◽  
Power Sharing ◽  
Voltage Source ◽  
Motor Drive ◽  
Phase System ◽  
Space Vector Pwm ◽  
Space Vector ◽  
Voltage Source Inverters ◽  
Pulsewidth Modulation ◽  
Novel Method

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.

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