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Abstract(s)
O transporte ferroviário é um meio de transporte em que o meio de deslocamento ocorre por meio de vias férreas, transportando, entre outros, pessoas e cargas. Este meio de transporte é um dos mais antigos e a sua origem está ligada directamente com a Primeira Revolução Industrial, acontecimento histórico que sucedeu na Europa no final do século XVIII e início do século XIX.
Uma rede ferroviária é um sistema único no ponto de vista do uso de tração elétrica assim como no modo que se insere na sociedade por ser um meio de transporte seguro, rápido e bastante utilizado pela população.
As redes de alimentação de energia (transporte e distribuição) e a rede de alta velocidade ditaram novas soluções para a alimentação elétrica ferroviária contribuindo para a sua evolução técnica, na segurança e também na compatibilidade eletromagnética no sentido de se estabelecerem critérios de controlo e prevenção dos efeitos indesejáveis provocados pela interferência magnética.
O presente trabalho tem por objetivo analisar e estudar tecnicamente como se comportam as redes que alimentam os veículos de tração elétrica desde as subestações até à alimentação das locomotivas. Dada a complexidade da sua análise torna-se necessário o recurso a ferramentas de simulação mais ou menos complexas.
No presente trabalho recorreu-se ao MATLABTM, nomeadamente, ao MATLABTM/Simulink. Foram analisadas as principais grandezas elétricas em cenários distintos para os sistemas de alimentação da catenária de 1x25 kV e 2x25 kV.
Rail transport is a means of transport that occurs through railways, carrying, among others, people and cargo. This means of transport is one of the oldest and its origin is linked directly with the First Industrial Revolution, historic event that happened in Europe in the late eighteenth and early nineteenth century. Railways are a unique system both from the point of view of electric traction energy use and the way it is merged in society to be a safe means of transport, fast and widely used by the population. The energy supply networks (transport and distribution) and the high-speed railways contributed in its evolution, in safety and also in electromagnetic compatibility in the sense of establishing criteria for control and prevention of undesirable effects caused by electromagnetic interference. The present work has as objective to analyze and study technically the behavior of networks that feed the electric traction vehicles from the substations to the feed of the locomotives. Due to the complexity of this analysis, becomes necessary use simulation tools more or less complex. In this work we used the MATLABTM, in particular, the MATLABTM/Simulink .The most important magnitudes of the electric system for various scenarios, with catenaries powered in the 1x25 kV and 2x25 kV systems were analyzed.
Rail transport is a means of transport that occurs through railways, carrying, among others, people and cargo. This means of transport is one of the oldest and its origin is linked directly with the First Industrial Revolution, historic event that happened in Europe in the late eighteenth and early nineteenth century. Railways are a unique system both from the point of view of electric traction energy use and the way it is merged in society to be a safe means of transport, fast and widely used by the population. The energy supply networks (transport and distribution) and the high-speed railways contributed in its evolution, in safety and also in electromagnetic compatibility in the sense of establishing criteria for control and prevention of undesirable effects caused by electromagnetic interference. The present work has as objective to analyze and study technically the behavior of networks that feed the electric traction vehicles from the substations to the feed of the locomotives. Due to the complexity of this analysis, becomes necessary use simulation tools more or less complex. In this work we used the MATLABTM, in particular, the MATLABTM/Simulink .The most important magnitudes of the electric system for various scenarios, with catenaries powered in the 1x25 kV and 2x25 kV systems were analyzed.
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Keywords
Tracção elétrica Electric traction