Hybrid genetic algorithm approach for selective harmonic control

The main objective of this study is the improvement of output voltage waveform quality generated by a new modified Cascaded H-bridge (CHB) multilevel inverter using Selective Harmonic Elimination (SHE) method and passive LC filters. A PWM technique with SHE is used to control fundamental harmonic and eliminate harmonics of chosen lower-order in CHB multilevel inverter. A passive LC filter is added to the inverter in order to eliminate the high-order harmonics. The switching angles are drawn by solving a non-linear equations system using Hybrid Genetic Algorithm (HGA). In order to evaluate the performance of the HGA in solving the non-linear equations of the system presented in this study, the proposed optimization algorithm was compared to the well-known particle swarm optimization method. Different cases including 5-and 7-level inverters with different values of modulation indices are reported. The simulation findings are validated through experimental results. ARTICLE HISTORY

show abstract

“…HGA have been developed to eliminate the fine tuning problem of a LS in GA. It is combination of GA and one LS technique [10,11].…”

Section: Solution Using Hgamentioning

confidence: 99%

“…Hybrid Genetic Algorithms (HGA) have been developed to eliminate the fine tuning problem of a local search (LS) in GA. It is a combination of LS and GA [10,11]. In this work, a HGA with LS method has been applied to determine the optimal switching angles for the proposed CHB multilevel inverter.…”

Section: Introductionmentioning

confidence: 99%

New modified CHB multilevel inverter topology with elimination of lower and higher order harmonics

et al. 2018

View full text Add to dashboard Cite

show abstract

“…The decomposition in Fourier series, who only show the existence of harmonics of odd natures [4,7,8,10], is given by:…”

Section: Selective Harmonic Eliminated Pwm Strategy (Shepwm) Formentioning

confidence: 99%

Application of Firefly Algorithm on the SHEPWM strategy for the multilevel inverters

Cherchali

Tlemçani

Morsli

et al. 2014

2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)

View full text Add to dashboard Cite

The aim of this article is the application of a new Metaheuristic algorithm (Firefly Algorithm) for solving a nonlinear algebraic system where the resolution is needed to study the Selective Harmonic Eliminated PWM strategy (SHEPWM); this strategy is applied to multilevel inverters. The Firefly Algorithm (FA), proposed by Xin-She Yang at the University of Cambridge, is a new Metaheuristic algorithm, which is inspired by the behavior of fireflies is one of the latest Metaheuristics inspired from nature. The principle of the SHEPWM strategy is to impose the voltage pulses and calculate the switching angles to eliminate the selected harmonic orders by solving a nonlinear equations by applying Firefly Algorithm by using a software calculation and plot the shape of the angles calculated based modulation rate where the spectre of voltage shows that the amplitudes of the selected harmonics are zero.

show abstract

“…Bütün et al comparatively used the Newton-Raphson and the BCGA methods to minimize harmonics in the inverter voltage by optimizing the switching angles (Butun et al, 2006). Dahidah et al proposed the HRCGA to eliminate the specified harmonics while maintaining the fundamental constant and the results were compared with those obtained by the Newton-Raphson method in terms of precision and computational time (Dahidah et al, 2008). Naggar and Abdelhamid presented a study to increase the quality of a new family multilevel PWM inverter by decreasing the selected harmonics through the BCGA without a local search technique (Naggar & Abdelhamid, 2008).…”

Section: Introductionmentioning

confidence: 99%

Improved power quality in a single-phase PWM inverter voltage with bipolar notches through the hybrid genetic algorithms

Tutkun¹

2010

Expert Systems with Applications

View full text Add to dashboard Cite

Hybrid genetic algorithm approach for selective harmonic control

Cited by 61 publications

References 17 publications

New modified CHB multilevel inverter topology with elimination of lower and higher order harmonics

New modified CHB multilevel inverter topology with elimination of lower and higher order harmonics

Application of Firefly Algorithm on the SHEPWM strategy for the multilevel inverters

Improved power quality in a single-phase PWM inverter voltage with bipolar notches through the hybrid genetic algorithms

Contact Info

Product

Resources

About