Assembly and method for stabilizing an ac voltage grid
AssigneeSiemens Energy Global GmbH & Co. KG
InventorsRalph Morgenstern, Markus Naukamm, Bjoern Hellfritzsch, Andreas Haselbauer
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Abstract
A configuration for stabilizing an AC voltage grid has a rotating phase-shifter that is configured to exchange reactive power with the AC voltage grid. The configuration is distinguished by a converter which has a grid side for connection to the AC voltage grid and a machine side for connection to the phase-shifter. A method is furthermore taught for stabilizing the AC voltage grid by way of the configuration.
Claims11
A configuration for stabilizing an AC voltage grid, the configuration comprising:
- a rotating phase-shifter configured to exchange reactive power with the AC voltage grid;
- and
- a converter having a grid side for connection to the AC voltage grid and a machine side for connection to said rotating phase-shifter.
A method for stabilizing an AC voltage grid, which comprises the steps of:
- providing a rotating phase-shifter that exchanges reactive power with the AC voltage grid during normal operation;
- connecting the rotating phase-shifter to the AC voltage grid by way of a converter upon identification of a predetermined frequency drop in the AC voltage grid;
- and
- feeding stored energy of the rotating phase-shifter into the AC voltage grid in a form of active power.
Dependencies are inferred from the claim text.