Bombardier Transportation Gmbh

Peter Krafka

Magnus Jansson

Henrik Mosskull

Robert Becker

Michael Rampe

Daniel Wagner

A system for feeding electric power to a first consumer () comprises an input filter () with an input configured to be connected to a DC energy source and a DC intermediate link () connected to an output () of the input filter. A converter () is with an input connected to the DC intermediate link and has an output to be connected to said first consumer (). The unit () controls the converter to obtain feeding of electric power requested by the first consumer independently of variations of the voltage on the DC link (). An assembly is configured to act stabilizing on that voltage by controlling the converter to add a first power component to the power to be fed to the consumer. A second consumer () is controlled to consume a second power component to either assist the control of the converter to obtain the stabilization or alone take care thereof.

System and a method for feeding electric power to a consumer thereof

An open-loop and/or closed-loop control device for operating an asynchronous machine which is fed by a 3-phase power converter. The open-loop and/or closed-loop control structure has a stator flux controller and a pulse pattern generator for generating pulse signals based on mean values. An output of the stator flux controller is connected to an input of the pulse pattern generator, with the result that the pulse pattern generator can generate the pulse signals as a function of a manipulated variable which is generated by the stator flux controller. The stator flux controller is configured so as to generate the manipulated variable as a function of a desired value of the stator flux of the asynchronous machine and as a function of a desired value of the torque of the asynchronous machine. The stator flux controller has a dead-beat control response.

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Schriesheim, Germany

Peter Krafka