Title :
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
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;
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
DOI :
10.1109/ECCE.2010.5618060
