Dynamic response of three-phase induction motors to voltage sags in the power supply network / Resposta dinâmica dos motores de indução trifásicos a afundamentos de tensão na rede de alimentação

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

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.

ASSUNTO(S)

atp motor de indução trifásico resposta dinâmica dynamic response variação de tensão de curta duração short duration voltage variations electrical power quality three-phase induction motor voltage sags (dips) atp afundamentos de tensão qualidade da energia elétrica

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