Conference Proceeding

Novel carrier-based PWM methods for multilevel inverter

Coll. of Electr. Eng., Zhejiang Univ., Hangzhou, China
12/2003; DOI:10.1109/IECON.2003.1280687 ISBN: 0-7803-7906-3 pp.2777 - 2782 Vol.3 In proceeding of: Industrial Electronics Society, 2003. IECON '03. The 29th Annual Conference of the IEEE, Volume: 3
Source: IEEE Xplore

ABSTRACT The paper presents the idea of control degrees of freedom combination. Two novel carrier-based multilevel PWM methods are presented which take advantage of multiple control degrees of freedom available in multilevel inverters. The idea of control degrees of freedom combination and the validity of the PWM strategies are demonstrated by simulation and experimentation of a three-level inverter and a five-level inverter. The simulation and experimentation results indicate that the idea of control degrees of freedom combination is an important clue to realize the high performance multilevel inverter and the two PWM strategies exhibit the good harmonic characteristics or higher DC bus utilization than conventional PWM methods.

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Keywords

control degrees
 
conventional PWM methods
 
five-level inverter
 
freedom combination
 
good harmonic characteristics
 
higher DC bus utilization
 
multilevel inverters
 
multiple control degrees
 
novel carrier-based multilevel PWM methods
 
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performance multilevel inverter
 
PWM strategies
 
simulation
 
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three-level inverter
 
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