Title :
Modulation and balancing methods for a NPC converter connected to the grid in a medium voltage application: A STATCOM system
Author :
Sanz, I. ; Bueno, Emilio J. ; Rodriguez, F.J. ; Moranchel, M. ; Mayor, A.
Author_Institution :
Dept. of Electron., Alcala Univ., Alcala de Henares, Spain
Abstract :
In this paper a comparison between some modulation methods for a NPC converter working with low-switching frequencies is made. As the NPC converter is used in a STATCOM system, imbalanced voltages appear in the neutral point. In order to avoid the imbalance, some DC voltage balancing methods are implemented too.
Keywords :
PWM power convertors; power grids; static VAr compensators; switching convertors; voltage control; DC voltage balancing method; NPC converter; STATCOM system; low-switching frequency converter; medium voltage application; modulation method; neutral point; power grid; Automatic voltage control; Capacitors; Frequency modulation; Harmonic analysis; Medium voltage; Switches; DC balancing methods; NPC converter; STATCOM system; low-switching frequencies; modulation schemes;
Conference_Titel :
Industrial Electronics Society, IECON 2013 - 39th Annual Conference of the IEEE
Conference_Location :
Vienna
DOI :
10.1109/IECON.2013.6699277
