Application of differential evolution for cascaded multilevel VSI with harmonics elimination PWM switching

Amjad, Abdul Moeed; Salam, Zainal; Saif, Ahmed Majed

doi:10.1016/j.ijepes.2014.07.023

Cited by 41 publications

(12 citation statements)

References 34 publications

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“…The Differential Evolution algorithm, created by Rainer Storn and Kenneth Price in 1996, is a metaheuristic method, which conducts a random search in the population of solutions to locate global minima. It perturbs the population generated during the mutation process, while the diversity of the population is controlled by the crossover process [11]. During the selection process, it takes advantage of the survival of the fittest solution.…”

Section: Differential Evolutionmentioning

confidence: 99%

Evolutionary Metaheuristic Methods Applied to Minimize the THD in Inverters: A Systematic Review

Sánchez-Vargas¹,

León-Aldaco²,

Aguayo³

et al. 2021

EJEE

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In recent research works, metaheuristic methods have been widely used to minimize THD in inverters, these methods provide better computation time and effective results compared to classical methods. This paper presents a systematic analysis with a comprehensive coverage of metaheuristic methods applied to multilevel inverters. The search focused on the characteristics of the inverters used in the articles (topologies, levels, loads and evolutionary method). The aim is to show which are the characteristics of the most used case studies for the application of evolutionary metaheuristic methods. The IEEEXplorer, ScienceDirect, IET Digital Library, Springer and WorldWideScience databases have been used for the review since 2010. The results of the review show that many researchers use evolutionary algorithms, with Cascaded H-bridge Multilevel Inverter topology, RL loading and 7 levels. This highlights which features of the case studies are the most used and analysed to explore the advantages of using evolutionary metaheuristic methods.

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Section: Differential Evolutionmentioning

confidence: 99%

Evolutionary Metaheuristic Methods Applied to Minimize the THD in Inverters: A Systematic Review

Sánchez-Vargas¹,

León-Aldaco²,

Aguayo³

et al. 2021

EJEE

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show abstract

“…Since 1975, when Nabae et al introduced the concept of multilevel converters [2], many topologies have been introduced and assessed. Among flying capacitor [3], diodeclamped [4], and cascaded multilevel (CML) inverters, the latter, due to its simple structure and low number of elements (makes it more reliable) in contrast to other topologies, draws more attention to itself [5].…”

Section: Introductionmentioning

confidence: 99%

A Genetic-Based Hybrid Algorithm Harmonic Minimization Method for Cascaded Multilevel Inverters with ANFIS Implementation

Nikouei

Dehkordi

Niroomand

2021

Mathematical Problems in Engineering

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Selective harmonic elimination pulse-width modulation (SHEPWM) is a widely adopted method to eliminate harmonics in multilevel inverters, yet solving harmonic amplitude equations is both time consuming and not accurate. This method is applied here for a 7-level cascaded multilevel inverter (CMLI) with erroneous DC sources. To meet the seven harmonic amplitude equations, two notches are applied with the use of higher switching frequency than nominal. These notches can be placed in six different positions in the voltage wave, and each was assessed in a separate manner. In order to solve the equations, a hybrid algorithm composed of genetic algorithm (GA) and Newton–Raphson (N-R) algorithm is applied to achieve faster convergence and maintain the accuracy of stochastic methods. At each step of the modulation index (M), different positions for the notches are compared based on the distortion factor (DF2%) benchmark, and the position with lowest DF2% is selected to train an artificial neural fuzzy interface system (ANFIS). ANFIS will receive the DC sources’ voltages together with required M and will produce one output; thus, eight ANFISs are applied to produce seven firing angles, and the remaining one is to determine which one of the notches’ positions should be used. Software simulations and experimental results confirm the validity of this proposed method. The proposed method achieves THD 8.45% when M is equal to 0.8 and is capable of effectively eliminating all harmonics up to the 19th order.

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“…In [17], the optimised genetic algorithm (GA) is applied to the switching angle solution, and the initial population is randomly created, which simplifies the calculation. In [18, 19], the GA based on differential evolution (DE) is proposed and its fast and accurate advantage is taken of solving the SHE switching angle. This algorithm relies on the trial vector to create control strategies and parameters without presetting the initial values.…”

Section: Introductionmentioning

confidence: 99%

Composite differential evolution algorithm for SHM with low carrier ratio

Zhang

Song

et al. 2018

IET Power Electronics

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This study presents a new method of switching angle solution based on composite differential evolutions (CoDE) in selective harmonic mitigation pulse width modulation (SHMPWM). The method can effectively improve the global searching ability and convergence rate of the solution by the combination of multiple composite trial vectors and control parameter settings. Its great generality makes itself applicable to selective harmonic elimination PWM and synchronous harmonic optimum PWM as well. This study introduces the basic principles of SHMPWM and CoDE, constructs the constraint and objective functions by means of penalty, and gives detailed solution steps. After getting the switching angle solutions from comparative studies including different switching angle numbers, different modulation degrees, or different optimised PWM methods, the experimental platform finally has been designed and carried out to verify the accuracy and generality of the proposed method.

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Application of differential evolution for cascaded multilevel VSI with harmonics elimination PWM switching

Cited by 41 publications

References 34 publications

Evolutionary Metaheuristic Methods Applied to Minimize the THD in Inverters: A Systematic Review

Evolutionary Metaheuristic Methods Applied to Minimize the THD in Inverters: A Systematic Review

A Genetic-Based Hybrid Algorithm Harmonic Minimization Method for Cascaded Multilevel Inverters with ANFIS Implementation

Composite differential evolution algorithm for SHM with low carrier ratio

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