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Análise da influência da estrutura interna do rotor de uma máquina síncrona de relutância magnética variável
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| 7.18 MB | Adobe PDF |
Authors
Advisor(s)
Abstract(s)
Nesta dissertação é apresentada uma introdução à máquina síncrona de relutância magnética
variável, sobre a sua história e o seu princípio de funcionamento. São apresentadas também as
características gerais da máquina assim como o esquema equivalente e o modelo matemático
que o define.
No desenvolvimento do trabalho, foi escolhido o programa denominado por Finite Element
Method Magnetics (FEMM) para a análise da distribuição dos campos magnéticos, dos fluxos e
do binário das topologias da máquina. Para a utilização deste programa foi necessário desenhar
os modelos construtivos da máquina e caracterizar todos os materiais constituintes, de forma a
poder efetuar as simulações em diferentes regimes.
Inicialmente desenvolveu-se três topologias de estudo baseados numa topologia simplificada de
duas barreiras de fluxo, no entanto, com o decorrer do trabalho, foi considerado interessante
analisar duas variantes construtivas de uma das topologias. Tendo essas variantes o objetivo de
analisar a possibilidade de melhoria de uma grandeza mecânica através das diferenças do
material das barreiras. As três topologias iniciais apresentam diferenças construtivas desde o
número de barreiras até às dimensões das mesmas.
No processo de simulação das topologias estudadas, foram obtidos resultados que caracterizam
a máquina quanto à magnetização e binário da máquina, tendo estes sido apresentados e
comentados.
This thesis will shine a light on the history of the synchronous reluctance machine and its operating principle. It is also presented the general characteristics of the machine, as well as the equivalent circuit and the mathematical model that defines it. In the development of this work, the program chosen was the Finite Element Method Magnetics (FEMM) to analyse the distribution of the magnetic fields, of the flux and the torque of the models of the machine. To utilize this program, it was necessary to previously draw the constructive topologies of the machine and it was required to characterize all the materials that composed the machine, in order to be able to simulate different regimes. Initially, three topologies of study would be presented, however, with the development of the work, it was considered interesting to present two construtive variants of one of them. Those variant models, have the goal to analyse the possibility of improvement of the torque, using the differences of the barriers material. The three initial topologies show constructive differences, which can go from the number of barriers to the variation of the dimension. In the simulation process for the studied topologies, data was obtained that characterize the machine, regarding its magnetization and torque, having these results been presented and commented.
This thesis will shine a light on the history of the synchronous reluctance machine and its operating principle. It is also presented the general characteristics of the machine, as well as the equivalent circuit and the mathematical model that defines it. In the development of this work, the program chosen was the Finite Element Method Magnetics (FEMM) to analyse the distribution of the magnetic fields, of the flux and the torque of the models of the machine. To utilize this program, it was necessary to previously draw the constructive topologies of the machine and it was required to characterize all the materials that composed the machine, in order to be able to simulate different regimes. Initially, three topologies of study would be presented, however, with the development of the work, it was considered interesting to present two construtive variants of one of them. Those variant models, have the goal to analyse the possibility of improvement of the torque, using the differences of the barriers material. The three initial topologies show constructive differences, which can go from the number of barriers to the variation of the dimension. In the simulation process for the studied topologies, data was obtained that characterize the machine, regarding its magnetization and torque, having these results been presented and commented.
Description
Keywords
SynRM Barreira de fluxo Grossura das barreiras Material da barreira Número de barreiras Flux barriers Dimensions of the barriers Barrier material Number of barriers