NDLI: Swarm Optimization-Based Modified Selective Harmonic Elimination PWM Technique Application in Symmetrical H-Bridge Type Multilevel Inverters

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Swarm Optimization-Based Modified Selective Harmonic Elimination PWM Technique Application in Symmetrical H-Bridge Type Multilevel Inverters

Content Provider	Directory of Open Access Journals (DOAJ)
Author	Y. Gopal K. P. Panda D. Birla M. Lalwani
Abstract	The problem of elimination of harmonics and the need of a large number of switches in multilevel inverters (MLIs) have been a hot topic of research over the last decades. In this paper, a new variant swarm optimization (SO) based selective harmonic elimination (SHE) technique is described to minimize harmonics in MLIs, which is a complex optimization problem involving non-linear transcendental equation. Optimum switching angles are calculated by the proposed algorithms considering minimum total harmonic distortion (THD) and the best results are taken for controlling the operation of MLIs. The performance of the proposed algorithm is compared with the genetic algorithm (GA). Conventional MLIs have some disadvantages such as the requirement of a large number of circuit components, complex control, and voltage balancing problems. A novel seven-level reduced switch multilevel inverter (RS MLI) is proposed in this paper to recoup the need of a large number of switches. Matlab/Simulink software is used for the simulation of two symmetrical topologies, i.e., a seven-level cascaded H-bridge multilevel inverter (CHB MLI) and a seven-level (RS MLI). Simulation results are validated by developing a prototype of both MLIs. The enhancement of the output voltage waveform confirms the effectiveness of the proposed SO SHE approach.
Related Links	https://etasr.com/index.php/ETASR/article/view/2397
ISSN	22414487
e-ISSN	17928036
Journal	Engineering, Technology & Applied Science Research
Issue Number	1
Volume Number	9
Language	English
Publisher	D. G. Pylarinos
Publisher Date	2019-01-01
Publisher Place	Greece
Access Restriction	Open
Subject Keyword	Engineering (General). Civil engineering (General) Technology (General) Information technology Swarm Optimization Selective Harmonic Elimination Multilevel Inverter Cascaded H-bridge Multilevel Inverter Genetic Algorithm Reduced Switch Multilevel Inverter
Content Type	Text
Resource Type	Article
Subject	Signal Processing Engineering 2500/2501

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