Drive system with energy store and method for operating a drive system
AssigneeSew-Eurodrive GmbH & Co. KG
InventorsSebastian Schiffmann, Josef Schmidt, Matthias Hauck, Christian Lampert, Daniel Tritschler, Thomas Zöller
Life of this patent
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Abstract
A drive system with energy store and method for operating a drive system, an inverter powering an electric motor, the inverter being supplied from a unipolar DC-link voltage, an energy store being connected in parallel to the inverter, in particular, a film capacitor being connected in parallel to the inverter, the DC-link voltage being generated by a DC/DC converter which is supplied from an AC/DC converter, especially a rectifier, in particular, an electric current being able to be supplied to the DC link by the DC/DC converter.
Claims29
-15. (canceled)
A drive system, comprising:
- an energy store;
- and
- an inverter powering an electric motor, wherein:
- the inverter is supplied from a unipolar DC-link voltage,
- the energy store is connected in parallel to the inverter, and
- the DC-link voltage is generated by a DC/DC converter that is supplied from an AC/DC converter.
A method for operating a drive system that includes an energy store, and an inverter powering an electric motor, the inverter being supplied from a unipolar DC-link voltage, the energy store being connected in parallel to the inverter, and the DC-link voltage being generated by a DC/DC converter that is supplied from an AC/DC converter, the method comprising:
- feeding the inverter from a DC link that is able to be fed by the DC/DC converter, the DC/DC converter being able to be supplied from the AC/DC converter;
- connecting the inverter to a control;
- and
- connecting the control, one of directly and indirectly, to the DC/DC converter and the inverter for transmitting signals so that the DC/DC converter supplies an electric power predefined by the control, to the DC link.
Dependencies are inferred from the claim text.