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Have executed: Sharov Vlad, Tursunov Sergey, pupils 10 classes
The energy-effective electric motor
The work purpose: working out and an experimental research of the energy-effective electric motor on photo cells
Object of research: energy-effective electric drives
Object of research: electric motor rotor on a magnetic pillow
Research hypothesisReduction of the moment of force of the resistance operating on a rotor will allow to use low-power power supplies, including photo cells with the small area of a surface
Research problems1) the analysis of ways of reduction of force
of the resistance operating on a rotor of the electric motor at rotation
2) the analysis of dynamic and power characteristics of a rotor of the electric motor on a magnetic pillow
3) an estimation of possibility of application of alternative energy sources for creation of the rotary moment in the electric motor
4) project estimation of cost
Technical problems
Magnetic pillow and cargo ability of a rotor
The maximum weight of loading 90 g + 0,196 g
Research of dynamics of a rotor
Force of a current in a rotor winding
Estimation of power parameters of a rotor
Dependence of force of a current in a winding from power of a source
ConclusionsApplication of a magnetic pillow in an engine design
will allow to use sources of electric pressure of smaller power, including photo cells with the small area of a surface
Decrease in starting value of force of a current in a rotor winding can be reached at the expense of application niodim magnets
The offered model of the electric motor allows to exclude sliding contacts (brushes) from a design, that considerably will increase service life
Model lack is strictly horizontal working position of the engine that it is possible to eliminate application of magnetic bearings
Estimation of average cost of the electric motor
The name number/volume Approximate cost
Niodim ring magnets 6 pieces 12$
Constant Niodim a magnet
inductor 1 piece 1$
Copper wire for a rotor 1 piece 1$
Photo cells for a rotor 4 pieces 8$
Aluminium core for a rotor shaft 1 piece 3$
Having passed under this reference it is possible to look video of work of the engine and its practical application:
https://sites.google.com/site/theenergoeffectiveelectricm/the-practical-importance