Control system for multiple electrically driven hoisting beams by means of electric traction monorail crane

The invention provides a control system for multiple electrically driven hoisting beams by means of an electric traction monorail crane, and belongs to coalmine production auxiliary facilities. The control system comprises a monorail crane power battery, a frequency converter, contactors, a hydraulic pump station motor, a hydraulic oil pump, monorail crane auxiliary hydraulic systems, hoisting motors, hoisting speed reducers and a control center. The control system is characterized in that the monorail crane power battery supplies power to the frequency converter, the hydraulic pump station motor and the multiple hoisting motors are controlled by frequency converter output, the hydraulic pump station motor is connected with the hoisting motors in parellel, the front part of each motor is connected with one contactor, the hydraulic pump station motor is connected with the hydraulic oil pump, the hoisting motors are connected with the hoisting speed reducers, and the control center communicates with the frequen