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AuthorAhmad, Salman
AuthorIqbal, Atif
AuthorAshraf, Imtiaz
AuthorMeraj, Mohammad
Available date2023-05-21T08:32:44Z
Publication Date2022
Publication NameEnergy Reports
ResourceScopus
URIhttp://dx.doi.org/10.1016/j.egyr.2022.01.122
URIhttp://hdl.handle.net/10576/43087
AbstractLow switching frequency pulse width modulation (PWM) technique for modulation and control of multilevel inverter in medium voltage high power applications is preferred in order to reduce the switching losses. In this context, a multilevel inverter operated with Selective harmonics minimization PWM technique offers better quality waveform at reduced switching losses. After the Fourier series analysis, the system of non-linear simultaneous transcendental equations is obtained. These equations are then solved to obtain switching angles to have certain low order harmonics at minimum value and regulation in the fundamental voltage magnitude. In this paper, a novel invasive weed optimization (IWO) technique is proposed to compute switching angles. The proposed technique can compute switching angles for both symmetrical and asymmetrical multilevel inverters. Thus it has superiority over well-known optimization techniques such as GA, PSO, DE, and ACO, etc. Moreover, in certain modulation index ranges, it provides faster convergence and accurate results which have been demonstrated in the paper. The computational results have been verified with the experimental result on the prototype developed in the laboratory. The field programming gate arrays (FPGA) based controller is used to implement the proposed technique. The hardware results have been found in close agreement with the computed results. 2022
SponsorThis publication was made possible by NPRP grant #[ 13S-0108-20008 ] from the Qatar National Research Fund (A member of Qatar Foundation). The statements made herein are solely the responsibility of the authors. The APC of the paper is funded by the Qatar National Library , Doha, Qatar.
Languageen
PublisherElsevier
SubjectFPGA
Invasive weed optimization
Low switching frequency
Multilevel inverter
Total harmonics distortion
TitleImproved power quality operation of symmetrical and asymmetrical multilevel inverter using invasive weed optimization technique
TypeArticle
Pagination3323-3336
Volume Number8
dc.accessType Open Access


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