Converter arrangement and method for the operation thereof
AssigneeSiemens Energy Global GmbH & Co. KG
InventorsFABIAN HASSEL, FELIX KAMMERER
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Abstract
A method is provided for operating a converter arrangement having a modular multilevel converter which includes at least one series circuit of double-pole switch modules, of which at least one first switch module is a full bridge switch module including controllable semiconductor switches and an energy storage device. The switches and the energy storage device are connected to one another in a full bridge circuit. After one of the semiconductor switches in the first switch module has been found to be defective, the first switch module continues to be operated as a half bridge switch module. A converter arrangement for carrying out the method is also provided.
Claims11
1-10. (canceled)
A method for operating a converter arrangement, the method comprising:
- providing a converter arrangement including a modular multilevel converter having at least one series connection of double-pole switch modules, the switch modules including at least one first switch module being a full bridge switch module having controllable semiconductor switches and an energy storage device connected to one another in a full bridge circuit;
- and
- after detecting one of the semiconductor switches in the first switch module as being faulty, continuing to operate the first switch module as a half bridge switch module.
A converter arrangement, comprising:
- a modular multilevel converter including at least one series connection of double-pole switch modules, said switch modules including at least one first switch module being a full bridge switch module having controllable semiconductor switches and an energy storage device connected to one another in a full bridge circuit;
- and
- a central control device configured to continue to operate said first switch module as a half bridge switch module after one of said semiconductor switches in said first switch module has been detected as being faulty.
Dependencies are inferred from the claim text.