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Current Constraints of PWM Rectifier under Unbalanced Voltage Supply
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SYSNO ASEP 0352053 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Current Constraints of PWM Rectifier under Unbalanced Voltage Supply Author(s) Chomát, Miroslav (UT-L) RID, ORCID
Schreier, Luděk (UT-L) RID
Bendl, Jiří (UT-L) RIDSource Title 2010 TWENTY-FIFTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC) : Annual IEEE Conference on Applied Power Electronics Conference and Exposition (APEC) . - Palm Springs, California : IEEE, 2010 - ISSN 1048-2334 - ISBN 978-1-4244-4783-1 Pages s. 895-900 Number of pages 6 s. Publication form CD ROM - CD ROM Action Annual IEEE Applied Power Electronics Conference and Exposition - APEC 2010 /25./ Event date 21.02.2010-25.02.2010 VEvent location Palm Springs, California Country US - United States Event type WRD Language eng - English Country US - United States Keywords PWM rectifiers ; electric drives ; DC-link voltage Subject RIV JA - Electronics ; Optoelectronics, Electrical Engineering R&D Projects GA102/09/1273 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20570509 - UE-C, UT-L (2005-2011) UT WOS 000278142300142 Annotation 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. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2011
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