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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Motor de indu??o trif?sico sem mancais com bobinado dividido: otimiza??o do sistema de posicionamento radial

Castro, Felipe Emmanuel Ferreira de 17 December 2004 (has links)
Made available in DSpace on 2014-12-17T14:55:24Z (GMT). No. of bitstreams: 1 FlavioMCBA_capa_ate_pag14.pdf: 7935796 bytes, checksum: 6c2f3a3c824a915c716376ff053cdb86 (MD5) Previous issue date: 2004-12-17 / This dissertation dea1s with the active magnetic suspension controI system of an induction bearingIess motor configured with split windings. It analyses a dynamic modeI for the radial magnetic forces actuating on the rotor. From that, it proposes a new approach for the composition of the currents imposed to the machine's stator. It shows the tests accomplished with a prototype, proving the usefulness of the new actuating structure for the radial positioning controI. Finnaly, it points out the importance of adapting this structure to well-known rotational controI techniques, continuing this kind of equipment research, which is carried out at Federal University of Rio Grande do Norte since 2000 / Esta disserta??o trata do sistema de controle de suspens?o magn?tica ativa do rotor de um motor de indu??o sem mancais na configura??o com bobinado dividido. Analisa um modelo din?mico para as for?as magn?ticas radiais atuantes sobre o rotor. A partir disso, prop?e um novo esquema de composi??o das correntes impostas ao estator da m?quina. Mostra os testes realizados sobre um prot?tipo, provando a utilidade da nova estrutura de atua??o para o controle de posi??o radial. Por fim, indica a import?ncia de se adaptar esta estrutura a t?cnicas de controle rotacional consagradas, dando continuidade ao desenvolvimento da pesquisa sobre este tipo de equipamento, que ? realizada na Universidade Federal do Rio Grande do Norte desde 2000

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