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US 2012/0267952 A1Published application
DC Micro-Grid
AssigneeBloom Energy Corporation
InventorsArne Ballatine, Chad Pearson, Ranganathan Gurunathan, Prasad PMSVVSV, Alberto Doronzo
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Abstract
Systems and methods are provided for creating and operating a Direct Current (DC) micro-grid. A DC micro-grid may include power generators, energy storage devices, and loads coupled to a common DC bus. Power electronics devices may couple the power generators, energy storage devices, and loads to the common DC bus and provide power transfer.
Claims59
A Direct Current (DC) micro-grid, comprising:
- at least one power generator coupled to at least one power generation bus;
- at least one energy storage device coupled to at least one energy storage bus;
- at least one load coupled to at least one load bus;
- a common DC bus;
- a first power electronics device configured to provide power transfer coupling the at least one power generation bus to the common DC bus;
- a second power electronics device configured to provide power transfer coupling the at least one energy storage bus to the common DC bus;
- and
- a third power electronics device configured to provide power transfer coupling the at least one load bus to the common DC bus.
5 more elements
A direct current (DC) module, comprising:
- a plurality of DC inputs;
- at least one alternating current (AC) input;
- a DC/DC converter coupled to the plurality of DC inputs;
- an AC/DC converter coupled to the AC input;
- a storage module coupled to the DC/DC converter and the AC/DC converter;
- and
- a DC output coupled to the DC/DC converter, the AC/DC converter, and the storage module.
4 more elements
A method for operating a direct current (DC) micro-grid, comprising:
- providing at least one power generator to a power generation bus;
- providing at least one energy storage device to an energy storage bus;
- providing at least one load to a load bus;
- providing the power generation bus, the energy storage bus, and the load bus to a common DC bus, wherein each of the power generation bus, the energy storage bus, and the load bus, respectively, are coupled to the common DC bus via a respective power electronics device;
- and
- operating the DC micro-grid such that a power requirement of the at least one load is maintained according to a following:
- P(to storages)=P(generators)−P(loads), if P(generators)>P(loads);
- or i.
- P(from storages)=P(loads)−P(generators), if P(generators)<P(loads), ii.
- where P is Power.
7 more elements
Dependencies are inferred from the claim text.