Fundamental modulation strategy with selective harmonic elimination for multilevel inverters. Issue 8 (1st August 2014)

• Record Type: Journal Article
• Authors: Lou, Huibo; Mao, Chengxiong; Wang, Dan; Lu, Jiming; Wang, Libing
• Is Part Of: IET power electronics. Volume 7:Issue 8(2014)
• Page Start: 2173
• Page End: 2181
• Publication Date: 2014-08-01
• Subjects: PWM invertors -- harmonics suppression -- voltage control -- optimisation -- harmonic distortion; selective harmonic elimination -- multilevel inverters -- SHE -- low‐modulation indices -- fundamental voltage control -- cascaded 11‐level inverter -- multi‐objective optimisation problem -- shuffled frog leaping algorithm; Power electronics -- Periodicals; 621.31705
• DOI: 10.1049/iet-pel.2013.0347
• Languages: English
• ISSNs: 1755-4535

Abstract

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.