Počet záznamů: 1

Current Constraints of PWM Rectifier under Unbalanced Voltage Supply

  1. 1.
    0352053 - UT-L 2011 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
    Chomát, Miroslav - Schreier, Luděk - Bendl, Jiří
    Current Constraints of PWM Rectifier under Unbalanced Voltage Supply.
    2010 TWENTY-FIFTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC). Palm Springs, California: IEEE, 2010, s. 895-900. ISBN 978-1-4244-4783-1. ISSN 1048-2334.
    [Annual IEEE Applied Power Electronics Conference and Exposition - APEC 2010 /25./. Palm Springs, California (US), 21.02.2010-25.02.2010]
    Grant CEP: GA ČR GA102/09/1273
    Výzkumný záměr: CEZ:AV0Z20570509
    Klíčová slova: PWM rectifiers * electric drives * DC-link voltage
    Kód oboru RIV: JA - Elektronika a optoelektronika, elektrotechnika

    Non-standard conditions in the power network such as voltage unbalance negatively affect operation of electric drives. The unbalance can be caused by a failure in the network or by an 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 a significant reduction of power capabilities and, therefore, limited controllability of the drive. The paper deals with the analysis of the constraints caused especially by the current stress of the converter's parts when operated from an unbalanced voltage supply. The influence of circuit parameters on the operating regions and their constraints are particularly dealt with.
    Trvalý link: http://hdl.handle.net/11104/0006184