scholarly journals Full Range Capacitor Voltage Balance PWM Strategy for Diode-Clamped Multilevel Inverter

Electronics ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 1263 ◽  
Author(s):  
Jinping Wang ◽  
Juncan Wang ◽  
Benxian Xiao ◽  
Zaiyi Gui ◽  
Weidong Jiang
Keyword(s):  
Pulse Width Modulation ◽  
Full Range ◽  
Virtual Space ◽  
Multilevel Inverter ◽  
Switching Loss ◽  
Paper Briefly ◽  
Capacitor Voltage ◽  
Voltage Balance ◽  
Modulation Model ◽  
Capacitor Voltage Balance

This paper briefly reviews virtual space vector pulse width modulation (VSVPWM) for the diode-clamped multilevel inverter (DCMLI). Based on the universal modulation model of the DCMLI with N-level, a modulation strategy named as full range capacitor voltage balance PWM (FRCVBPWM) is proposed, which has similar capacitor voltage balance characteristics as VSVPWM. The characteristic of FRCVBPWM is that there are respectively zero, N − 1 and N − 2 switching actions for the three phases of the DCMLI. Therefore, the total switching actions are greatly decreased compared with VSVPWM. The switching loss comparison between FRCVBPWM and VSVPWM is conducted by comprehensive simulations. Finally, the feasibility and superiority of FRCVBPWM over VSVPWM is verified by experiments.

scholarly journals Pulsewidth Modulations for the Comprehensive Capacitor Voltage Balance of $n$-Level Three-Leg Diode-Clamped Converters

2009 ◽  
Vol 24 (5) ◽  
pp. 1364-1375 ◽  
Author(s):  
Sergio Busquets-Monge ◽  
Salvador Alepuz ◽  
Joan Rocabert ◽  
Josep Bordonau
Keyword(s):  
N Level ◽  
Capacitor Voltage ◽  
Voltage Balance ◽  
Capacitor Voltage Balance
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