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Master's Dissertation
DOI
https://doi.org/10.11606/D.18.2009.tde-06072009-092748
Document
Author
Full name
Gerson Bessa Gibelli
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2009
Supervisor
Committee
Oleskovicz, Mário (President)
Gonzaga, Diógenes Pereira
Serni, Paulo Josée Amaral
Title in Portuguese
Resposta dinâmica dos motores de indução trifásicos a afundamentos de tensão na rede de alimentação
Keywords in Portuguese
Afundamentos de tensão
ATP
Motor de indução trifásico
Qualidade da energia elétrica
Resposta dinâmica
Variação de tensão de curta duração
Abstract in Portuguese
Esta pesquisa apresenta um estudo da resposta dinâmica dos motores de indução trifásicos submetidos a afundamentos de tensão. As simulações computacionais sobre um sistema de distribuição, assim como a modelagem dos motores de indução trifásicos baseada em dados reais, foram realizadas utilizando-se do software ATP (Alternative Transients Program). Estas tiveram por objetivo gerar situações representativas da operação do sistema elétrico de potência (SEP), caracterizando afundamentos de tensão, fenômenos estes pertencentes à classe de variações de tensão de curta duração (VTCD), no contexto da qualidade da energia elétrica (QEE). Da observação destes afundamentos, verificaram-se as situações que vieram ou não, a comprometer a alimentação do equipamento analisado e, conseqüentemente, seu desempenho. Pelos resultados observados, evidencia-se que a metodologia de análise aplicada é satisfatória e condizente com o encontrado em situações reais de operação dos motores de indução trifásicos, denotando certas características intrínsecas no contexto das VTCDs.
Title in English
Dynamic response of three-phase induction motors to voltage sags in the power supply network
Keywords in English
ATP
Dynamic response
Electrical power quality
Short duration voltage variations
Three-phase induction motor
Voltage sags (dips)
Abstract in English
This research shows a study on the dynamic response of three-phase induction motors submitted to voltage sags. Computer simulations about a distribution system, as well as the modeling of three-phase induction motors based on actual data, were made using ATP (Alternative Transients Program) software. These simulations intended to generate representative situations of the electrical power system (EPS) operation, characterizing voltage sags, which is a phenomenon belonging to the class of short duration voltage variations (SDVV), in the electrical power quality context (EPQ). From the observation of these sags, we verified the situations that jeopardized or not the supply of the analyzed equipment and, consequently, its performance. From the observed results, it becomes evident that the methodology of the applied analysis is satisfactory and in agreement with the one found in actual situations of three-phase induction motors operations, indicating certain characteristics intrinsic to the SDVV context.
 
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Gerson.pdf (2.44 Mbytes)
Publishing Date
2009-07-17
 
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