Projeto e caracterização de uma máquina elétrica linear de fluxo transverso para aplicação em um sistema de geração de eletricidade.

Abstract

This work presents the design, construction and testing of a linear machine with permanent magnets. I n this work is discussed a new form of primary actuator, which uses a linear motion, provide by a Stirling engine. From a study about linear electrical machines projects, i t was possible to make a comparative study of tested structures. From there, i t was designed a project that tried to gather the advantages observed in linear electrical machines transverse flow studied, named linear mixed configuration. A routine design of mixed configuration's prototype was developed. The stages of the project included comparative studies and threedimensional finite element simulations. The simulation results show the magnetic flux behavior over the structure, as well as their distribution depending on the position of the movable shaft of the machine, induced voltage values, and the power generated. Changes in initial project were made from the obtained results. A test bench which allowed the simulation of linear primary drive from a crank system coupled to a prototype of the designed linear machine has been built. The experiments confirmed the theory, and proved that the routine design for the production is feasible. The experimental results show good approach those obtained by simulation.