GEAR FOR IMPROVEMENT OF COMMUTATION OF COMMUTATOR MOTORS Russian patent published in 1998 - IPC

FIELD: electric machine engineering. SUBSTANCE: gear for improvement of commutation of commutator motors includes regulator, pickup and unit setting magnetization current in winding of additional poles, adder, nonlinear element and correction element. Inputs of adder are connected to outputs of regulator of additional commutation current, correction element, pickup and unit setting magnetization current in winding of additional poles. Output of adder is connected through regulator of magnetization current in winding of additional poles to input of second controlled converter and output of unit setting excitation current is connected through nonlinear element to input of correction element. EFFECT: provision for adjustment of desired commutation character and for its stabilization within wide range of velocity control and load change. 2 dwg