Open AccessPSO Based Selective Harmonic Elimination PWM for Cascaded H-Bridge Multilevel Inverter
Author(s) -
M.S. Sivagama Sundari,
D. Periyasamy
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1012/1/012054
Subject(s) - harmonics , particle swarm optimization , matlab , h bridge , control theory (sociology) , inverter , pulse width modulation , computer science , photovoltaic system , total harmonic distortion , power (physics) , harmonic , genetic algorithm , topology (electrical circuits) , mathematical optimization , mathematics , algorithm , voltage , engineering , physics , control (management) , quantum mechanics , artificial intelligence , electrical engineering , operating system , combinatorics
A Single phase Cascaded H-bridge multilevel inverter topology fed by Photovoltaic source for the reduction of harmonics is proposed in this paper. Selective Harmonic Elimination technique is employed for elimination of 5th, 7th, 11th and 13th lower order harmonics and the particle swarm optimization algorithm is employed for estimating the switching angles. As a novelty, in order to maintain the power balance among the various sources, a cyclic selection procedure is adopted that over a period of operation also the sources equally contribute for the output power. MATLAB software is used for optimization and the results show the effectiveness of the proposed algorithm. The performance of the Particle Swarm Optimization Algorithm has been compared against the performance of the Genetic Algorithm.