Comparison of power quality indices and apparent power (kVA) ratings in different autotransformer-based 30-pulse AC-DC converters



Título del documento: Comparison of power quality indices and apparent power (kVA) ratings in different autotransformer-based 30-pulse AC-DC converters
Revista: Journal of applied research and technology
Base de datos: PERIÓDICA
Número de sistema: 000427981
ISSN: 1665-6423
Autores: 1
Instituciones: 1Technical and Vocational University, Electrical Engineering Department, Qom. Irán
Año:
Periodo: Jun
Volumen: 15
Número: 3
País: México
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, descriptivo
Resumen en inglés Three-phase multipulse AC-DC converters (MPC) are developed for improving power quality to reduce harmonics in ac mains and ripples in dc output. This study, based on technical and economic factors, compares different autotransformer-based 30-pulse AC-DC converters. In this paper, the comparison of two topologies of autotransformer-based 30-pulse AC-DC converter has been presented. In topology A, three-phase AC voltages are given to the autotransformer, which produces five sets of three-phase voltage and, in topology B, three-phase AC voltages are given to the autotransformer, which produces three sets of five-phase voltages of same magnitude and distributed in time through phase shifts of 12o. Topology A included polygon, hexagon, star, fork, and T-connected autotransformer-based 30-pulse AC-DC converters, and topology B Included polygon, and T-connected autotransformer-based 30-pulse AC-DC converters. These converters have been implemented and simulation using Matlab/Simulink software for similar ratings under different load conditions has been performed. A set of power-quality indices on input ac mains and on a dc bus for a DTCIMD fed from different 30-pulse AC-DC converters is given to compare their performance. Economic comparison of 30 pulse AC-DC converters is based on the apparent power (kVA) ratings of the different autotransformer for 30 pulse AC-DC converters
Disciplinas: Ingeniería
Palabras clave: Ingeniería eléctrica,
Motores de inducción,
Convertidores CA-CD,
Calidad de la potencia,
Rectificador de pulsos
Keyword: Electrical engineering,
Induction motors,
AC-DC converters,
Power quality,
Pulse rectifier,
Induction motors
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