Title :
Voltage Balance Control for a Multilevel Interface for Renewable Energy Systems
Author :
Christopher, Edward ; Sumner, Mark
Author_Institution :
University of Nottingham, School of Electrical and Electronic Engineering, Nottingham, England
fDate :
Aug. 30 2006-Sept. 1 2006
Abstract :
This paper presents a new method to balance the DC link voltages in a 3 level Diode Clamped Rectifier, even in the presence of unbalanced loads which cause a non-zero neutral point current. The method employs an offset which is added to each of the inverter modulation waves. This offset causes a zero sequence voltage which can drive the desired neutral point current whilst maintaining balanced DC link voltages. Simulation and experimental results confirm the method.
Keywords :
Control systems; Diodes; Inverters; Medium voltage; Power electronics; Rectifiers; Renewable energy resources; Topology; Voltage control; Wind energy generation;
Conference_Titel :
Power Electronics and Motion Control Conference, 2006. EPE-PEMC 2006. 12th International
Conference_Location :
Portoroz
Print_ISBN :
1-4244-0121-6
DOI :
10.1109/EPEPEMC.2006.4778397
