Operating Regions of PWM Rectifier under Unbalanced Voltage Supply

0327225 - ÚT 2010 RIV AU eng C - Conference Paper (international conference)
Chomát, Miroslav - Schreier, Luděk - Bendl, Jiří
Operating Regions of PWM Rectifier under Unbalanced Voltage Supply.
IEEE International Conference on Industrial Technology - ICIT 09. Gippsland - Victoria: IEEE - Monash University, 2009, s. 510-515. ISBN 978-1-4244-3507-4.
[IEEE International Conference on Industrial Technology - ICIT 09. Gippsland - Victoria (AU), 10.02.2009-13.02.2009]
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

Operation of 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.
Permanent Link: http://hdl.handle.net/11104/0174091