Title :
A Novel PWM Modulation Strategy for DC Voltage Balancing in Cascaded H-Bridge Multilevel Converters
Author :
Barrena, Jon Andoni ; Marroyo, Luis ; Rodríguez, Miguel Ángel ; Torrealday, José Ramón
Author_Institution :
Univ. of Mondragon, Mondragon
Abstract :
This paper presents a novel Voltage Balancing PWM modulation strategy for Cascaded H-Bridge multilevel converters. These converters have been classically commu-tated at fundamental line-frequencies, but the evolution of Power Semiconductors has allowed to increase switching frequencies and the power ratings of these devices, permitting the use of PWM modulation techniques. This paper presents a new PWM modulation strategy that solves the DC Bus voltage balancing problems that appear in the cascaded converter working in reactive power compensation (STATCOM) applications.
Keywords :
PWM power convertors; static VAr compensators; switching convertors; DC bus voltage balancing problems; DC voltage balancing; PWM modulation strategy; cascaded H-bridge multilevel converters; power semiconductors; switching frequencies; Automatic voltage control; Control systems; Flexible AC transmission systems; Power grids; Pulse width modulation; Pulse width modulation converters; Pulse width modulation inverters; Reactive power; Reactive power control; Voltage control; Multilevel converter; STATCOM;
Conference_Titel :
EUROCON, 2007. The International Conference on "Computer as a Tool"
Conference_Location :
Warsaw
Print_ISBN :
978-1-4244-0813-9
Electronic_ISBN :
978-1-4244-0813-9
DOI :
10.1109/EURCON.2007.4400602
