Reactive power compensation and harmonics elimination at Medium-Voltage using Hexagram converter

Author

Wen, Jun ; Zhou, Liang ; Smedley, Keyue

Author_Institution

Power Electron. Lab., Univ. of California, Irvine, Irvine, CA, USA

fYear

2010

fDate

12-16 Sept. 2010

Firstpage

136

Lastpage

144

Abstract

This paper introduced Hexagram converter - a new type of multilevel converter for reactive power compensation and harmonics elimination at Medium-Voltage (MV) grids to improve the power quality. The Hexagram converter is composed of six three-phase two-level Voltage Source Converters (VSCs) interconnected through the inductors, and has the advantages of modular structure with easy construction, even and much reduced voltage stress, and easy control. A four-dimensional control method which is composed of three two-level One-Cycle Controllers (OCC) is proposed for the Hexagram converter system. The reactive power compensation and harmonics elimination function has been verified with both simulation model and experimental prototype.

Keywords

harmonics suppression; power conversion harmonics; reactive power control; four dimensional control method; harmonics elimination; hexagram converter; medium voltage grids; modular structure; multilevel converter; power quality; reactive power compensation; three phase two level voltage source converters; two level one cycle controllers; Equations; Harmonic analysis; Integrated circuits; Power conversion; Power system harmonics; Reactive power; Active power filter; hexagram converter; multilevel converter; one-cycle control; reactive power compensation;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Congress and Exposition (ECCE), 2010 IEEE

Conference_Location

Atlanta, GA

Print_ISBN

978-1-4244-5286-6

Electronic_ISBN

978-1-4244-5287-3

Type

conf

DOI

10.1109/ECCE.2010.5618060

Filename

5618060