TRACTION VEHICLE ALTERNATING CURRENT ELECTRIC TRANSMISSION WITH MICROPROCESSOR CONTROL SYSTEM Russian patent published in 2020 - IPC B60L50/10 B60L50/13 B60L50/51 B60W10/08 H02P5/74 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering and can be used in electrical equipment of traction transport rolling stock, for example, in thermal del-trains, cars, and so forth. Electric transmission of traction vehicle alternating current with microprocessor control system additionally includes: electric transmission control algorithm selection unit; unit for measuring (calculation) of main resistance to movement of traction vehicle; unit implementing electric transmission control algorithm (traction vehicle movement by reserve or with empty train with simple track profile); unit, which realizes electric transmission control algorithm 2 (movement of traction vehicle with laden composition); unit implementing electric transmission control algorithm (traction vehicle movement with large weight composition at complex track profile); unit for setting input signals for excitation unit of traction synchronous generator and control unit of driven inverter. Microprocessor control system of electric transmission of traction vehicle sets frequency of supply voltage of asynchronous motors with specified excess over frequency corresponding to rotation frequency of their common shaft, input control actions for asynchronous motors are voltage of traction synchronous generator and angle of advance of opening of valves of driven inverter. Regulation of rotation speed of common shaft of asynchronous motors and, accordingly, axis of moving wheels is performed by addition of additional electromotive force to circuit of rectified voltage of stator winding of the second asynchronous motor. Value of additional EMF determined by mean value of voltage of driven inverter is controlled by action on advance angle of opening of valves of driven inverter by means of control unit of driven inverter. Change of advance angle of opening of valves of driven inverter can be carried out with uniform (algorithm 1), non-uniform (algorithm 2) distribution on traction positions of the second controller of the driver of difference of this angle between adjacent values and, accordingly, uniform or non-uniform step change of frequency of traction synchronous generator voltage or its stepless change (algorithm 3).

EFFECT: technical result is a change in a wide range of speed and tangential traction force traction vehicle at constant values of rotation speed of the shaft of the diesel engine, its power and torque on the shaft of the diesel engine.

1 cl, 9 dwg, 1 tbl