SyntegraTM - next generation traction drive system, total integration of traction, bogie and braking technology

The state-of-the-art drive system of today´s metro or commuter trains with underfloor traction equipment consists of a 3-phase IGBT inverter, feeding two or four induction traction motors in parallel. For torque transmission from the traction motor to the wheelset, a gear unit is required for the drive. As a rather radical innovation, this paper presents a completely new gearless drive system for future metres or commuter trains called Syntegratrade based on a permanent magnet traction motor. The paper reports on the electrical and mechanical design of the traction motor, the braking concept, the integration into the bogie, the manufacturing and some test results of the laboratory test bench