ELECTRIC POWER TRANSMISSION OF TRACTION VEHICLE Russian patent published in 2005 - IPC

FIELD: transport engineering.

SUBSTANCE: proposed electric power transmission contains synchronous generator driven by heat engine, excitation unit of traction synchronous generator, induction electric motors and power electric transmission control unit. Station windings of synchronous generator are connected to stator windings of induction traction motors. Rotor windings of each induction traction motor are connected with connected with independent rectifier bridges. Bridges are connected from side of rectified voltage in parallel and are connected with armature winding of dc regulating machine whose shaft is connected with shafts of heat engine and traction synchronous generator. Shafts of induction traction motors are connected with axles of driving wheels. Electric power transmission control unit is connected to heat engine, excitation unit of traction synchronous generator and excitation unit of dc regulating machine. In electric power transmission of traction vehicle, two electric machines can be used instead of one dc regulating machine. Placed in armature winding circuits of said electric machines are series or parallel connection switches connected with their control unit and connected to electric power transmission control unit. Rotor windings can be by connected in series, and rectifier can be connected in parallel to said windings, output of rectifier being connected with armature winding of dc regulating machine (or two such electric machines).

EFFECT: increased rotational frequency control range of shafts of induction traction motors, reduced installed power and overall dimensions of regulating machine.

3 cl, 5 dwg