INDUCTION ELECTRIC MOTOR Russian patent published in 1997 - IPC

FIELD: electric drives. SUBSTANCE: part of even rods 2, 4, 6, ..., 32 of rotor 65 are connected to short-circuiting rings 66, 67. Part of odd rods 1, 3, 5, 64 provide two-phase part of rotor winding. Common terminal 77 for this part of winding is connected to inputs 80, 81 of control unit 82 and to first output 82 of pulse regulator 71. Other terminals 69, 70 of this part of winding are connected to input terminals of rectifier 68 which terminals 75, 76 are connected to molecular accumulating capacitor 74 and regulation unit 73. Pulse regulator 71 has pulse generator 83, pulse transformer 84 and phase thyristor commutators 85, 86. Control unit and regulation unit detect current voltage values in phases of rotor winding. Thyristor control algorithm in pulse generator and commutator control algorithm in pulse regulator provide distribution of power from molecular accumulating capacitor to reset capacitor and subsequent distribution of this power in phases of phase part of rotor winding. EFFECT: compensation of reactive power, increased rotor coψ and stator cosψ, increased momentum and efficiency of electric motor. 11 dwg