Low order harmonics elimination in multilevel inverters using fuzzy logic controller considering the variations of dc voltage sources

Author

Bayat, Zahra ; Babaei, Ebrahim ; Badamchizadeh, Mohammadali

Author_Institution

Dept. of Electr. Eng., Islamic Azad Univ., Ahar, Iran

fYear

2011

fDate

20-23 Aug. 2011

Firstpage

1

Lastpage

6

Abstract

The voltage variations are inevitable in most kind of dc sources used in multilevel inverters. Therefore, using the selective harmonics elimination (SHE) techniques to eliminate low order harmonics considering specific combination of constant voltage sources seem to be impractical or less usage. In this paper, by employment of fuzzy logic controller, a suitable control method for elimination the low order harmonics and achieving the desired fundamental output voltage for a wide range of dc voltage sources variations is proposed. The simulation results on a 7-level cascaded inverter are presented to confirm the correctness of the proposed control method.

Keywords

fuzzy control; harmonics suppression; invertors; particle swarm optimisation; cascaded inverter; dc voltage sources; fuzzy logic controller; low order harmonics elimination; multilevel inverters; selective harmonics elimination; Equations; Harmonic analysis; Inverters; Mathematical model; Modulation; Switches; Voltage control; Selective harmonics elimination; fuzzy logic controller; multilevel inverter; particle swarm optimization;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2011 International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4577-1044-5

Type

conf

DOI

10.1109/ICEMS.2011.6073860

Filename

6073860