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Device for electrical source sharing
| Details |
Inventors: Papalia, Daniel T.; Morris, Doug; Hage, Peter G.;
Assignee: Motorola, Inc. (Schaumburg, IL)
Primary Examiner: Berhane; Adolf Deneke
Assistant Examiner:
Attorney, Agent or Firm: Burrus, IV; Philip H.
An apparatus for electrical source sharing between a power grid, at least one local generator and a local load includes a power circuit, a data port and a controller. The power circuit is capable of effecting a plurality of source sharing configurations, including: a fist configuration in which the local load is fully powered by the power grid; a second configuration in which the local load is fully powered by the local generator; and a third configuration in which the local load is partially powered by the power grid and partially powered by the local generator. The data port is capable of receiving data from an external source. The controller is programmed to execute the following operations: receive data from the data port; determine a preferred source sharing configuration from the plurality of source sharing configurations, based on data received from the data port; and instruct the power circuit to effect the preferred source sharing configuration. |
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DETAILED DESCRIPTION OF THE INVENTION A preferred embodiment of the invention is now described in detail.
Referring to the drawings, like numbers indicate like parts throughout the views.
As used in the description herein and throughout the claims, the following terms take the meanings explicitly associated herein, unless the context clearly dictates otherwise: the meaning of"a," "an," and "the" includes plural reference, the meaning of"in" includes "in" and"on.
" Also, as used herein, "generator" means any device capable of generating electric power.
As shown in FIG.
1, one embodiment 100 of the invention includes a source sharing control circuit 110 that configures power connections between a power grid 102, a local generator 142 and a local load 108.
Typically, the local load 108 would include local electrical appliances situated at a local site 140, such as a house or place of business.
The local generator 142, an electric meter 104 and a fuel meter 106 (such as a gas meter) would be at the local site 140.
Typically, the generator 142 would be a small capacity generator.
Examples of such local generators include: micro-turbine generators, gasoline engine-powered generators, fuel cells, Stirling engines, or any devices that are capable of generating electric power.
The source sharing control circuit 110 receives information from an external data source 130.
The data source 130 could include an aggregator 132, a data input from the electric meter 104 and a data input from the gas meter 106.
An aggregator 132 is an entity that provides data regarding the economic costs involved in receiving power from the power grid 102 and in generating power from the generator 142.
For example, the aggregator 132 could provide the current price of electric power and the current price of fuel (e.
g.
natural gas) for the generator.
The aggregator 132, in one embodiment could simply provide a binary indication of whether current price conditions favor local power generation versus taking power from the grid 102
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Electrical and Wave 
