In order to effectively supply and demand electric power between an electric power supplier and a node or a group of nodes individually having an electric power generator, the present invention provides an electric power supply and demand management system capable of obtaining the difference between
In order to effectively supply and demand electric power between an electric power supplier and a node or a group of nodes individually having an electric power generator, the present invention provides an electric power supply and demand management system capable of obtaining the difference between the total of electric power supplied from the electric power supplier to the node or group and the total of electric power consumed by the electric power loads of the node or group and capable of transmitting information for increasing/decreasing the amount of electric power supply so that the difference becomes smaller to the electric power supplier.
대표청구항▼
The invention claimed is: 1. An electric power supply and demand management system comprising: an electric power supplier; an electric power transmission system; electric power consuming nodes, each having an electric power generator, connected to said electric power transmission system and classif
The invention claimed is: 1. An electric power supply and demand management system comprising: an electric power supplier; an electric power transmission system; electric power consuming nodes, each having an electric power generator, connected to said electric power transmission system and classified into groups, each comprising a plurality of nodes; a first calculation unit configured to obtain a difference between a total of electric power supplied from said electric power supplier to said node or said group and a total of electric power consumed by an electric power load of said node or said group; and a first transmission unit configured to transmit information for increasing/decreasing an amount of electric power supply to said electric power supplier so that said difference becomes smaller, wherein said first calculation unit determines at least one of a selling price of electric power from said electric power supplier to said node or said group and a purchase price of electric power purchased from said node or said group and sold to said electric power supplier, by using said difference between a total of electric power supply from said electric power supplier to said node or said group and a total of electric power consumed by an electric power load at said node or said group as a parameter, and said first transmission unit transmits at least one of said selling price and said purchase price to said node or said group, wherein said electric power supplier has a reception unit configured to receive information selected from the group consisting of an electric power charge, an amount of electric power consumption and an electric power supply capacity of said node or said group, said first calculation unit determines an amount of electric power and a purchase price of electric power demanded by said electric power supplier for each node, which can sell electric power among said nodes, on the basis of said information selected from the group consisting of an electric power charge, an amount of electric power consumption and an electric power supply capacity of said node or said group, and said first transmission unit transmits at least one of said amount of electric power and said purchase price demanded by said electric power supplier to said node. 2. The electric power supply and demand management system in accordance with claim 1, wherein said node or said group is provided with; a second transmission unit configured to transmit information selected from the group consisting of an electric power charge, an amount of electric power consumption and an electric power supply capacity to other nodes, groups or said electric power supplier; a second reception unit configured to receive information selected from the group consisting of an amount of electric power, a purchase price of electric power and a selling price of electric power demanded by said other nodes, groups or said electric power supplier; and a control unit configured to control an output of said electric power generator of said node on the basis of said information. 3. The electric power supply and demand management system in accordance with claim 2, comprising, a node information storage unit configured to store node information including a node identifier for identifying said node and an amount of electric power consumption and an amount of electric power supply of said node identified by said identifier, wherein said first calculation unit calculates an amount of transmittable electric power from one node to other nodes and/or said electric power supplier by using said amount of electric power consumption and said amount of electric power supply included in said node information as parameters, said first transmission unit transmits a signal indicating said amount of transmittable electric power to each node, and said node transmits said transmittable electric power to the other nodes and/or said electric power supplier. 4. The electric power supply and demand management system in accordance with claim 1, wherein said electric power supplier has a substation, said first calculation unit calculates a purchase amount of electric power and a purchase price of electric power, which are demanded by said electric power supplier, by using electric power supply and demand information regarding a flowing direction and an amount of energy between a high-voltage side to a low-voltage side of said substation, and said first transmission unit transmits said amount of electric power to be purchased and said purchase price to said node or said group. 5. The electric power supply and demand management system in accordance with claim 1, wherein said node is provided with a storage battery, and a second calculation unit configured to determine at least one selected from the group consisting of a purchase amount of electric power, a purchase price of electric power, a selling amount of electric power and a selling price of electric power, which are demanded for said other nodes, by using information regarding electric power demand and storage amounts of storage batteries connected to other nodes, and said second transmission unit transmits at least one selected from the group consisting of a purchase amount of electric power, a purchase price of electric power, a selling amount of electric power and a selling price of electric power to at least one of said electric power supplier and the other nodes. 6. The electric power supply and demand management system in accordance with claim 1, wherein said first calculation unit or said second calculation unit predicts an amount of electric power consumption of said node or said group and determines an amount of electric power supply, which is demanded by said node or said group, by using said predicted amount of electric power consumption as a parameter, and said first transmission unit or said second transmission unit transmits a signal in order for an electric power generator of a node or a group other than said node or said group, or for said electric power supplier to supply said amount of electric power. 7. The electric power supply and demand management system in accordance with claim 1, comprising an electric power consumption amount storage means configured to store information regarding an amount of electric power consumption of each node, and said first calculation unit or said second calculation unit predicts an amount of electric power consumption of each node or each group by using said stored amount of electric power consumption as a parameter. 8. The electric power supply and demand management system in accordance with claim 6, wherein said first calculation unit or said second calculation unit determines an amount of electric power supply from said node by using data including a relation between an output of said electric power generator and an amount of fuel consumption as parameters. 9. The electric power supply and demand management system in accordance with claim 6, wherein said first calculation unit or said second calculation unit determines an amount of electric power supply from said electric power generator by using at least said amount of electric power consumption of said node as a parameter. 10. The electric power supply and demand management system in accordance with claim 9, wherein said first calculation unit or said second calculation unit determines an amount of electric power supply of each electric power generator so that the number of electric power generators in operation of said nodes becomes minimum or maximum. 11. The electric power supply and demand management system in accordance with claim 9, wherein said first calculation unit or said second calculation unit predicts an amount of electric power consumption of each node by using a schedule information. 12. The electric power supply and demand management system in accordance with claim 9, wherein said first transmission unit or said second transmission unit transmits information for increasing/decreasing an amount of electric power supply from a storage battery of said each node or said electric power generator connected to said storage battery to a node, which requires electric power, by using information regarding a storage amount of said storage battery or information regarding a transfer amount of energy of each node. 13. The electric power supply and demand management system in accordance with claim 1, wherein said electric power supplier has a reception unit for receiving information selected from the group consisting of an electric power charge, an amount of electric power consumption and an electric power supply capacity of said node or said group, said first calculation unit determines an amount of electric power and a purchase price of electric power demanded by said electric power supplier for each node, which can sell electric power among said nodes, on the basis of said information, and said first transmission unit transmits at least one of said amount of electric power and said purchase price demanded by said electric power supplier to said node. 14. The electric power supply and demand management system in accordance with claim 1, wherein said node or said group is provided with; a second transmission unit configured to transmit information selected from the group consisting of an electric power charge, an amount of electric power consumption and an electric power supply capacity to other nodes, groups or said electric power supplier; a second reception unit configured to receive information selected from the group consisting of an amount of electric power, a purchase price of electric power and a selling price of electric power demanded by said other nodes, groups or said electric power supplier; and a control unit configured to control an output of said electric power generator of said node on the basis of said information.
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