METHOD FOR BALANCING CRANK-GEAR DRIVE MOTOR TORQUE Russian patent published in 2005 - IPC

FIELD: electrical engineering.

SUBSTANCE: proposed method that can be used to control systems incorporating frequency converter with off-line voltage inverter and induction motor operating into mechanisms handling alternating cyclic load (deep-well pimps, crank gear drive mechanisms, and the like) involves automatic correction of motor speed as function of voltage deviation in dc current section from maximal permissible value which makes it possible to dispense with energy dissipating and rectifying devices affording recuperation mode.

EFFECT: reduced cost and maintenance charges, enhanced operating reliability.

1 cl, 1 dwg