A new strategy for harmonic minimization based on triple switching of multilevel converters

Author

Naderi, Yahya ; Hosseini, Seyed Hossein ; Mahari, Arash ; Naderi, Roozbeh

Author_Institution

Fac. of Electr. & Comput. Eng., Tabriz Univ., Tabriz, Iran

fYear

2013

fDate

14-16 May 2013

Firstpage

1

Lastpage

6

Abstract

In this paper the Imperialistic competition algorithm (ICA) is used to minimize harmonic components of the output voltage up to 75th harmonic in a multilevel inverter structure with unequal DC sources by the means of selected switching angles. As the number of switching angles increase, it becomes more difficult to calculate the optimum switching angles in order to minimize THD, so the ICA method is used to find the global optimum of the search space. In addition, the topology used in this multilevel converter is an optimum topology with maximum number of output voltage steps while the number of switches is constant.

Keywords

harmonic distortion; harmonics suppression; switches; switching convertors; ICA method; Imperialistic competition algorithm; THD; harmonic minimization; multilevel converter; multilevel inverter structure; optimum topology; optimum triple switching angle calculation; unequal DC source; Equations; Harmonic analysis; Inverters; Minimization; Power system harmonics; Switches; Topology; Cascaded Multilevel Converter; Multiple DC-Sources; Selective Harmonic Elimination (SHE); Triple Switching-Imperialistic Competition Algorithm (ICA);

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering (ICEE), 2013 21st Iranian Conference on

Conference_Location

Mashhad

Type

conf

DOI

10.1109/IranianCEE.2013.6599883

Filename

6599883