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Five-level hybrid-clamped (5L-HC) inverter is a newly proposed topology which is suitable for high-performance medium-voltage drives. This paper presents a capacitor voltage balancing strategy for a 5L-HC inverter, including the voltage balancing of DC-link capacitors and flying capacitors. Classic phase-shifted PWM is used to control this converter and a mean value model of flying capacitor and neutral...
Five-level active neutral-point clamped (5L-ANPC) converter is an attractive topology for high-power medium-voltage motor drives. This paper presents a capacitor voltage-balancing method for the 5L-ANPC converter, including the voltage balancing of dc-link capacitors and flying capacitors. In order to ensure that the series-connected or high-voltage switches of the 5L-ANPC converter are operated at...
Five-level active neutral-point-clamped (5L-ANPC) converter is a newly emerging topology which can overcome the drawbacks of traditional diode-clamped and flying-capacitor multilevel converters. This paper introduces a transformer-less medium-voltage motor drive system consisting of two 5L-ANPC converters connected back-to-back (BTB). Both the rectifier and inverter are based on phase-disposition...
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