METODO DE REGULACION DEL PAR ELECTROMAGNETICO DE MOTORES ELECTRICOS DE TRACCION DE VEHICULOS FERROVIARIOS.

摘要

Method for adjusting the electromagnetic torque of electric traction motors of railway vehicles, using inverters that take a direct voltage in order to power electric motors and to control the electromagnetic torque (Tem) thereof, in which the inverters comprise transistors (Tr1...Tr6) that switch between: active switching states (E.A.) corresponding to a non-zero voltage at the inverter output, and zero switching states (E.N.) corresponding to a zero voltage at the inverter output. The electromagnetic torque (Tem) of the electric motors is adjusted by the selective insertion of hybrid zero vectors that generate additional zero switching states (E.N.V.) corresponding to a zero voltage at the inverter output, thereby reducing the electromagnetic torque (Tem) of the electric motor in response to variations in the direct voltage.