摘要：This work aims to present the study of synchronous electrical machines with permanent
magnets for use in wind turbines, where the rotor, usually built from laminated sheets of low
carbon steel and FeSi, will be replaced by sintered alloys obtained from Powder Metallurgy.
Thus, in this work, studies will be conducted in order to verify the feasibility of using pure iron
and some sintered alloys, such as FeSi and FeNi, to construct the referred rotor. These
materials will be characterized in terms of their physical properties as well as simulations of the
machine will be carried out in three different topologies of the rotors. Two machines have the
magnets bonded to the surface of the rotors, with two different configurations, namely straight
poles and poles protruding, and the third one has the magnets inserted inside the rotor core.
The simulations results of different topologies pointed out that for machines with rolled sheet,
the best-sintered alloy in order to replace the rotor core would be Fe-2%P. The worst case
would be the machine with magnets embedded having the other two similar torque results.
关键词：Synchronous Electrical Machines; Powder Metallurgy; Soft Magnetic Materials.
