Selective harmonic elimination in multilevel inverter using hybrid APSO algorithm

Memon, Mudasir Ahmed and Mekhilef, Saad and Mubin, Marizan (2018) Selective harmonic elimination in multilevel inverter using hybrid APSO algorithm. IET Power Electronics, 11 (10). pp. 1673-1680. ISSN 1755-4535, DOI

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This study presents selective harmonic elimination pulse width modulation technique-based hybrid asynchronous PSO-Newton-Raphson (APSO-NR) algorithm for the elimination of undesired harmonics in cascaded H-bridge multilevel inverter. The proposed algorithm is applicable to all levels of MLI having equal and non-equal DC sources. In the proposed method, ring topology-based APSO algorithm is hybrid with NR method. APSO worked as a global search technique and NR is used for the refinement of best solutions. APSO-NR is applied to the seven-level inverter to eliminate fifth and seventh harmonics. In simulations, the performance of the proposed algorithm is compared with genetic algorithm, bee algorithm and particle swarm optimisation. The results proved that the proposed algorithm is efficient, and gives more precise firing angles in less number of iterations with high capability of tackling local optima. For the 48% of modulation index range, APSO-NR minimised the fitness function value lower than (10-25). The proposed algorithm is validated through the experimental implementation of the three-phase seven-level inverter.

Item Type: Article
Uncontrolled Keywords: Cascaded h-bridge multilevel inverters; Fitness functions; Global search techniques; High capabilities; Multilevel inverter; Number of iterations; Particle swarm optimisation; Selective harmonic elimination
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 24 May 2019 04:47
Last Modified: 24 May 2019 04:47

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