Decentralized controls and communications for autonomous distribution networks in smart grid
First Claim
1. A method to facilitate decentralized controls and communications for autonomous distribution networks in a smart grid, the method comprising:
- structuring at least a portion of the smart grid in a four tiered architecture, wherein;
a first tier comprises a central control center (CCC) configured to manage a plurality of distribution control centers (DCCs), each DCC representative of an autonomous distribution network (ADN),a second tier comprises a plurality of first control centers (CCs), each first CC representative of a subsystem,a third tier comprises a plurality of second CCs, each second CC representative of a neighborhood or a field area network, anda fourth tier comprises a plurality of micro grids (MGs), each MG comprising, one or more households and each MG being managed by a second CC in the third tier;
enabling exchange of power availability and/or need information among the one or more households, the plurality of MGs, and the plurality of first and second CCs through uplink and downlink communications;
collecting data from the plurality of MGs, a plurality of substations, and/or a plurality of ADNs at each tier;
aggregating the data collected from one or more of the plurality of MGs, the plurality of substations, and/or the plurality of ADNs at each tier,abstracting the aggregated data before transmission of the abstracted data to a higher tier, wherein abstracting the aggregated data comprises reducing the aggregated data into reduced data for transmission of the reduced data to a controller in the higher tier via the uplink and the downlink communications, and wherein an amount of the aggregated data to be reduced is quantitatively defined by an abstraction ratio at which information in the uplink communication is reduced while power sharing among the plurality of MGs, the plurality of substations, and/or the plurality of ADNs is performed; and
controlling distribution of excess power among the plurality of MGs and a plurality of subsystems, while the abstracted data is transmitted to the higher tier.
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Accused Products
Abstract
Technologies are generally described for addressing the bidirectional power flow conflict incurred by power surpluses produced from a number of households'"'"' on-location energy generation units (e.g., solar) in power distribution networks. A micro grid composed of households in a neighborhood may be considered as a generating- or consuming-resource entity at different time periods. The approach may be formulated as a power balance computation such that power balance may not be achieved within the micro grid itself, and therefore power sharing (or redispatching) among micro grids is operated, before requesting power from the macro grid, i.e., the fuel-based conventional grid. Enhancement of renewable energy utilization and reduction in the amount of data packet traffic in exchange of information and control messages via uplink and downlink transmissions throughout an overlay multi-tier communications network infrastructure may be taken into consideration in example implementations.
26 Citations
23 Claims
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1. A method to facilitate decentralized controls and communications for autonomous distribution networks in a smart grid, the method comprising:
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structuring at least a portion of the smart grid in a four tiered architecture, wherein; a first tier comprises a central control center (CCC) configured to manage a plurality of distribution control centers (DCCs), each DCC representative of an autonomous distribution network (ADN), a second tier comprises a plurality of first control centers (CCs), each first CC representative of a subsystem, a third tier comprises a plurality of second CCs, each second CC representative of a neighborhood or a field area network, and a fourth tier comprises a plurality of micro grids (MGs), each MG comprising, one or more households and each MG being managed by a second CC in the third tier; enabling exchange of power availability and/or need information among the one or more households, the plurality of MGs, and the plurality of first and second CCs through uplink and downlink communications; collecting data from the plurality of MGs, a plurality of substations, and/or a plurality of ADNs at each tier; aggregating the data collected from one or more of the plurality of MGs, the plurality of substations, and/or the plurality of ADNs at each tier, abstracting the aggregated data before transmission of the abstracted data to a higher tier, wherein abstracting the aggregated data comprises reducing the aggregated data into reduced data for transmission of the reduced data to a controller in the higher tier via the uplink and the downlink communications, and wherein an amount of the aggregated data to be reduced is quantitatively defined by an abstraction ratio at which information in the uplink communication is reduced while power sharing among the plurality of MGs, the plurality of substations, and/or the plurality of ADNs is performed; and controlling distribution of excess power among the plurality of MGs and a plurality of subsystems, while the abstracted data is transmitted to the higher tier. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A smart power distribution network configured to facilitate decentralized controls and communications for autonomous distribution networks, the smart power distribution network comprising:
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a first tier that comprises a central control center (CCC) configured to manage a plurality of distribution control centers (DCCs), each DCC representative of an autonomous distribution network (ADN); a second tier that comprises a plurality of first control centers (CCs), each first CC representative of a subsystem; a third tier that comprises a plurality of second CCs, each second CC representative of a neighborhood or a field area network; and a fourth tier that comprises a plurality of micro grids (MGs), wherein each MG comprises one or more households and each MG is managed by a second CC in the third tier, and wherein the smart power distribution, network is configured to; exchange of power availability and/or need information among the one or more households, the plurality of MGs, and the plurality of first and second CCs through uplink and downlink communications; enable collection of data from the plurality of MGs, a plurality of substations, and/or a plurality of ADNs at each tier; enable aggregation of the data collected from one or more of the plurality of MGs, the plurality of substations, and/or the plurality of ADNs at each tier; enable abstraction of the aggregated data before transmission of the abstracted data to a higher tier, wherein the abstraction of the aggregated data comprises reduction of the aggregated data into reduced data for transmission of the reduced data to a controller in the higher tier via the uplink and downlink communications, and wherein an amount of the aggregated data to be reduced is quantitatively defined by an abstraction ratio at which the information in the uplink communication is reduced; and control distribution of excess power among the plurality of MGs and a plurality of subsystems, while the abstracted data is transmitted to the higher tier. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A non-transitory computer readable storage medium with instructions stored thereon that are executable by one or more processors to facilitate decentralized controls and communications for autonomous distribution networks in a smart grid, the instructions being executable to perform or cause to be performed:
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managing operation of at least a portion of the smart grid that has been structured in a four tiered architecture, wherein; a first tier comprises a central control center (CCC) that manages a plurality of distribution control centers (DCCs), each DCC representative of an autonomous distribution network (ADN), a second tier comprises a plurality of first control centers (CCs), each first CC representative of a subsystem, a third tier comprises a plurality of second CCs, each second CC representative of a neighborhood or a field area network, and a fourth tier comprises a plurality of micro grids (MGs), each MG comprising one or more households and each MG being managed by a second CC in the third tier; enabling exchange of power availability and/or need information among the one or more households, the plurality of MGs, and the plurality of first and second CCs through uplink and downlink communications; collecting data from the plurality of MGs, a plurality of substations, and/or a plurality of ADNs sat each tier; aggregating the data collected from one or more of the plurality of MGs, the plurality of substations, and/or the plurality of ADNs at each tier; abstracting the aggregated data before transmission of the abstracted data to a higher tier, wherein abstracting the aggregated data comprises reducing the aggregated data into reduced data for transmission of the reduced data to a controller in the higher tier via the uplink and the downlink communications, wherein an amount of the aggregated data to be transmitted to the controller in the higher tier is defined by an abstraction ratio at which information in the uplink communication is reduced while power sharing among the plurality of MGs, the plurality of substations, and/or the plurality of ADNs is performed; and controlling distribution of excess power among the plurality of MGs and a plurality of subsystems, while the abstracted data is transmitted to the higher tier. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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Specification