ANALYSIS OF POWER AND COEFFICIENT OF EFFICIENCY OF NONCONTACT DC MOTOR OF DISK TYPE WITH PERMANENT MAGNETS
Stepanov Anatolii Vladimirovich
Bauman Moscow State Technical University
Abstract. This paper investigates power and the coefficient of efficiency of the noncontact DC motor with permanent magnets of the disc type. The article considers the motor with two-unit armature winding and three pairs of poles. This work researches the mode with four-cycle double half-period commutation of sections of armature winding. On the basis of analytical dependences of armature windings currents and back electromotive force of the motor on the angle of the rotor rotation the author gets dependencies of power consumed by the motor and the coefficient of efficiency on electromagnetic torque. The obtained results allow making a more reasonable choice of operating parameters of the non-contact DC motor of the disc type and modes of its work at the stages of its design.
Key words and phrases: бесконтактный двигатель постоянного тока, постоянные магниты, электромагнитный момент, электрическая и механическая мощность, коэффициент полезного действия, non-contact DC motor, permanent magnets, electromagnetic torque, electrical and mechanical power, coefficient of efficiency
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