DocumentCode :
13375
Title :
Fundamental modulation strategy with selective harmonic elimination for multilevel inverters
Author :
Huibo Lou ; Chengxiong Mao ; Dan Wang ; Jiming Lu ; Libing Wang
Author_Institution :
Dept. of Electr. Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China
Volume :
7
Issue :
8
fYear :
2014
fDate :
Aug-14
Firstpage :
2173
Lastpage :
2181
Abstract :
This study presents a novel fundamental modulation strategy with selective harmonic elimination (SHE) for multilevel inverters. Compared with conventional schemes, more kinds of stepped waveforms can be adaptively synthesised and it is more possible to obtain the optimal solutions for the SHE problem, especially at low-modulation indices. The control purpose, SHE and fundamental voltage control, for a cascaded 11-level inverter is formulated as multi-objective optimisation problem which is solved by using shuffled frog leaping algorithm in this study. The theoretical and experimental results are presented to confirm the validity of the proposed modulation scheme.
Keywords :
PWM invertors; harmonic distortion; harmonics suppression; optimisation; voltage control; SHE; cascaded 11-level inverter; fundamental voltage control; low-modulation indices; multi-objective optimisation problem; multilevel inverters; selective harmonic elimination; shuffled frog leaping algorithm;
fLanguage :
English
Journal_Title :
Power Electronics, IET
Publisher :
iet
ISSN :
1755-4535
Type :
jour
DOI :
10.1049/iet-pel.2013.0347
Filename :
6871652
Link To Document :
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