Influence of Circuit Parameters on Operating Regions of PWM Rectifier under Unbalanced Voltage Supply

0327223 - ÚT 2010 RIV US eng C - Conference Paper (international conference)
Chomát, Miroslav - Schreier, Luděk - Bendl, Jiří
Influence of Circuit Parameters on Operating Regions of PWM Rectifier under Unbalanced Voltage Supply.
IEEE International Electric Machines and Drives Conference - IEMDC 2009. Miami - Florida: IEEE, 2009, s. 416-421. ISBN 978-1-4244-4252-2.
[IEEE International Electric Machines and Drives Conference - IEMDC 2009. Miami - Florida (US), 03.05.2009-06.05.2009]
R&D Projects: GA ČR GA102/09/1273
Institutional research plan: CEZ:AV0Z20570509
Keywords : unbalanced voltage supply * DC-link voltage pulsations * variable-speed drive
Subject RIV: JA - Electronics ; Optoelectronics, Electrical Engineering

Electric drives may be negatively affected by non-standard conditions in the power network such as voltage unbalance, which may arise in three-phase power networks. The unbalance can be caused by a failure in the network or by unbalanced load in the vicinity of the affected drive. Unsymmetrical voltages at the input of a voltage source inverter cause pulsations in the DC link voltage when not properly taken care of. This may result in reduced power capabilities of the drive. The paper deals with the methods to address this problem and with the limitations placed on the drive when operated from the unbalanced voltage supply. Influence of circuit parameters on the operating regions and their constraints are particularly dealt with.
Permanent Link: http://hdl.handle.net/11104/0174090