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1 Maszyny Elektryczne : zeszyty problemowe

1 2003

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Własności ruchowe silników indukcyjnych małej mocy z wirnikiem z materiałów kompozytowych

Antal L., Janta T.

Maszyny Elektryczne : zeszyty problemowe

2003

Nr 66

53-58

Magnetic composites can be very useful for magnetic cores of electrical motors, especially because they are easy to get mass produced. Application of magnetic-conductive dielectromagnetics for rotors of induction motor is discussed. Circuit-field models of this motor are designed by using numerical calculations. Circuit-field model of a motor with such a rotor, which takes electrical coil outhang of stator and shorting rings of rotor, nonlinearity of magnetic materials, rotation of rotor and symmetrical power supply into account, and is additionally confirmed by results of tests on motor models made in practice allows working out computation for both static and dynamic machine characteristics. The compliance of results for numerical calculation and experimental tests makes it possible to apply computational model in order to seek for desired magnetic and electrical properties of the materials. Moreover, optimal dimensions of the particular layers of the two-layer rotor can be determined on that ground. The motors made of this kind of new material are not optimal. This paper confirms that magnetic-conductive layer should have higher: electric conductive, magnetic permeability and magnetic saturation.