Force effect of the iron circle

Force effect of the iron circle

In conventional electric drive systems, the mechanical effect is achieved via the forces in the magnetic gap.
The current linear motors are actually modified motors for rotating shafts.
In the PowerMaglev project, the magnetic circuit is interrupted by an air gap to store energy.
Due to the magnetic field in the air gap, the reluctance force can be used secondarily. About a distance control, the hovering is achieved. Only the energy for the control must be supplied to the movable system part.
Advantage of Levitation System in PowerMaglev:
- The magnetic field for levitation is not "generated" exclusively for the purpose of levitation (secondary use of the magnetic field of an electromagnetic storage system)
The levitation arises as an interaction between gravity and the effect of the controlled reluctance force.
In order to achieve a linear movement, the functional model considers the "infinite air gap".
In the project PowerMaglev the air gap is used rotated by 90 ° compared to other electromagnetic arrangements. This results in a new innovative sales.
The secondary goal is the utilization of the magnetic field.
The stored energy creates a magnetic field. This magnetic field is stationary. In contrast to previous technical solutions, the magnetic field is virtually already present and no energy needs to be expended to provide a magnetic field for levitation.
Due to the reluctance creates a directed force with a suitable construction.
With the program FEMM 4.2 the magnetic field was visualized. It was possible to determine a force of up to 10 kN per meter. Current levels for use as energy storage and available materials (eg iron circle with 912 mm pipe diameter and 40 mm wall thickness) were assumed.
The magnetic field present in the air gap of the iron circle has the following special features:
Unlike a coil, the magnetic field in the iron circle is not uniform, the magnetic flux density on the inside of the iron circle is much higher than the magnetic flux density on the outside of the iron circle.
Due to the mutual influence of the forward and return conductors, there are courses of field lines, which may be suitable for stabilizing the hovering.

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