Viabilidade da Utilização de Máquinas de Indução Convencionais como Motores sem Mancais Mecânicos
Electrical Motors transform electrical energy into mechanic energy in a relatively easy way. In some specific applications, there is a need for electrical motors to function with noncontaminated fluids, in high speed systems, under inhospitable conditions, or yet, in local of difficult access and co...
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| Další autoři: | |
| Médium: | masterThesis |
| Jazyk: | por |
| Vydáno: |
Universidade Federal do Rio Grande do Norte
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| Témata: | |
| On-line přístup: | https://repositorio.ufrn.br/jspui/handle/123456789/15456 |
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| Shrnutí: | Electrical Motors transform electrical energy into mechanic energy in a relatively easy
way. In some specific applications, there is a need for electrical motors to function with noncontaminated
fluids, in high speed systems, under inhospitable conditions, or yet, in local of
difficult access and considerable depth. In these cases, the motors with mechanical bearings
are not adequate as their wear give rise to maintenance. A possible solution for these
problems stems from two different alternatives: motors with magnetic bearings, that increase
the length of the machine (not convenient), and the bearingless motors that aggregate
compactness. Induction motors have been used more and more in research, as they confer
more robustness to bearingless motors compared to other types of machines building with
others motors. The research that has already been carried out with bearingless induction
motors utilized prototypes that had their structures of stator/rotor modified, that differ most of
the times from the conventional induction motors. The goal of this work is to study the
viability of the use of conventional induction Motors for the beringless motors applications,
pointing out the types of Motors of this category that can be more useful. The study uses the
Finite Elements Method (FEM). As a means of validation, a conventional induction motor
with squirrel-cage rotor was successfully used for the beringless motor application of the
divided winding type, confirming the proposed thesis. The controlling system was
implemented in a Digital Signal Processor (DSP) |
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