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Planar motion over a surface is commonly acquired using a combination of rotatory motors and appropriate mechanical transmissions to convert the torque produced by the motor into linear motion. Typically, the assembly employs two motors: one is responsible for the motion in the x-axis and the other, for the y-axis [1]. A planar actuator achieves this kind of motion from only one device. Several different...
An electromagnetic planar actuator can be described as a device that produces movement on a plane and provides movement with a minimum of two degrees of freedom within an area of movement over that plane [1]. The concept of a planar actuator with an ironless armature is explored in this work. The device is based on a double mover with two pairs of two high-energy NdFeB permanent magnets. They produce...
This paper shows the results of an optimization strategy that takes into account the annual wind profile of a wind turbine to minimize the generator cost and maximize the energy yield. The optimally designed machine is a 3-phase permanent magnet synchronous generator with 48 poles and 30 kW for direct drive wind turbines. The energy yield is considered in the optimization method by including the cost...
This article presents a study on a Torus machine employed in regenerative braking for electric vehicles. The machine is analyzed with focus on its specific characteristics compared to existing analysis. The static and dynamic tests of the machine for two formats of NdFeB permanent magnets considered are presented and compared to the results of a finite element analysis. The results outline the promising...
This paper describes an analytical method to compute the static planar and normal forces of an electromagnetic planar actuator. The actuator has a mover with two permanent magnets. Its movement can take place along the x-axis and yaxis simultaneously, according to the direction of the propulsion planar force produced. A normal force is also present as an attraction force between the mover and the...
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