Title :
Three-level active NPC converter: PWM strategies and loss distribution
Author :
Floricau, D. ; Floricau, E. ; Gateau, G.
Author_Institution :
Fac. of Electr. Eng., Politeh. Univ. of Bucharest, Bucharest
Abstract :
The 3L-NPC (Neutral-Point-Clamped) is the most popular multilevel converter used in high-power medium-voltage applications. An important disadvantage of this structure is the unequal distribution of losses among the switches. The performances of 3L-NPC structure were improved by developing the 3L-ANPC (Active-NPC) converter which has more degrees of freedom. In this paper the switching states and the loss distribution problem are studied for different PWM strategies in a STATCOM application. The PSIM simulation results are shown in order to validate the PWM strategies studied for 3L-ANPC converter.
Keywords :
PWM power convertors; static VAr compensators; PSIM simulation; PWM; STATCOM; high-power medium-voltage; loss distribution; three-level active neutral-point-clamped converter; unequal distribution; Automatic voltage control; Capacitors; Diodes; Power system control; Power system stability; Pulse width modulation; Pulse width modulation converters; Switches; Switching converters; Topology;
Conference_Titel :
Industrial Electronics, 2008. IECON 2008. 34th Annual Conference of IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-1767-4
Electronic_ISBN :
1553-572X
DOI :
10.1109/IECON.2008.4758494
