Relationship on Flying Capacitor Multilevel Inverter Switching Loss Minimized PWM Method

Abstract:

The paper studies a switching loss minimized PWM method for flying capacitor multilevel inverter. Using the method, each phase of the flying capacitor multilevel inverter can have the 120° no switching zone in one period; according to power factor angle, 120° no switching zone can be adjusted to be farthest located in the centre of the peak value region of the load current, the switching loss can be greatly reduced and the efficiency of the system can be greatly improved. the simulation and experimental results show that switching loss of 33％is reduced.

• Periodical: Advanced Materials Research (Volumes 433-440)
• Pages: 5528-5535
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.433-440.5528
• Online since: January 2012
• Authors: Chang Xin Miao, Li Ping Shi, Gui Lin Li, Hong Yan Wang
• Keywords: Carrier-Shifted PWM, Flying Capacitor Multilevel Inverter, Switching Loss Minimized PWM

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