WO2011042787A1 - 電力分配システム - Google Patents
電力分配システム Download PDFInfo
- Publication number
- WO2011042787A1 WO2011042787A1 PCT/IB2010/002492 IB2010002492W WO2011042787A1 WO 2011042787 A1 WO2011042787 A1 WO 2011042787A1 IB 2010002492 W IB2010002492 W IB 2010002492W WO 2011042787 A1 WO2011042787 A1 WO 2011042787A1
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- WIPO (PCT)
- Prior art keywords
- power
- information
- surplus
- supply
- management server
- Prior art date
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00028—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment involving the use of Internet protocols
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00034—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/14—Energy storage units
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/221—General power management systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/242—Home appliances
Definitions
- the present invention relates to a power distribution system that uses a remote meter reading device installed in a residence or the like to distribute power supplied to the residence or the like.
- this type of remote meter reading device for example, there is a remote meter reading device described in Patent Document 1. That is, in this apparatus, first, the integrated amount display portion and the rotating disk of the existing inductive watt hour meter are photographed by the imaging means. Next, the integrated amount displayed in the integrated amount display part and the integrated amount shown on the rotating disk are acquired through pattern recognition processing of each photographed image, and the induction type is based on each acquired integrated amount. The accumulated amount of the electricity meter is monitored. Then, the integrated amount of the monitored inductive watt hour meter is transmitted to the meter reading center by the communication means.
- the accumulated amount of the watt-hour meter provided in each residence can be automatically measured via the communication means, so that the accumulated amount of power supplied to each residence can be reduced. It can be easily acquired.
- Patent Document 1 Japanese Patent Application Laid-Open No. 2 0 0 5-0 7 0 8 6 9
- the power consumption of each residence acquired by such a remote meter-reading device that is, the amount of power consumption
- the power consumption of each residence acquired by such a remote meter-reading device is usually different for each residence, for each region, or depending on the season, time zone, etc.
- the installation of such a remote meter-reading device can be promoted to promote the effective use of power. Even if a system is established, it cannot be the basis for its solution. In other words, although there are demands and demands for efficiently supplying power to suppliers, the mechanism has not yet been established.
- the present invention has been made in view of such circumstances, and enables self-containment of power demand at each power supply destination through power distribution according to the excess or deficiency of power among the power supply destinations.
- a power distribution system capable of realizing power supply is provided.
- the meter-reading device is provided for each power supply destination, and the amount of power consumed at each power supply destination and the amount of surplus power stored in the power storage device are respectively transmitted via communication means.
- Remote meter reading device for remote meter reading, and power consumption information and surplus power amount information, which are information read by the remote meter reading device, are aggregated via the communication means, and the power supply of each supply destination is performed.
- CONFIRMTONCOPV A management server that manages the power, and the management server distributes power among the supply destinations based on a relationship of power according to the aggregated power consumption information and surplus power information. Provide distribution system.
- the power consumption and surplus power for each power supply destination under the control of the management server and managed for power supply are transmitted to the management server via the communication means of the remote meter-reading device.
- the management server will be able to manage the power consumption and surplus power for each power supply destination such as residences, factories, and facilities. Then, based on the relationship between the amount of power consumed and the amount of surplus energy at each supply destination managed in this way, that is, based on the relationship between excess and deficiency in the amount of power at each supply destination, For example, if power is distributed between the suppliers that have surplus power and the power consumption is excessive due to excessive power consumption from the suppliers that have surplus power Will be resolved. Thereby, self-containment of the electric power demand amount between each supply destination of electric power comes to be aimed at.
- the communication means may be power line carrier communication using a power line as a medium.
- the communication means may be network communication using the Internet as a medium. As described above, if network communication using the Internet as a medium is adopted as the communication means, highly versatile network communication can be configured. In consolidating the previous power consumption and surplus power into the management server, the scope of application can be expanded.
- the management server may perform power distribution among the respective supply destinations based on a balance of power consumption according to the aggregated power consumption information and surplus power information.
- each power supply can be performed by distributing power among the supply destinations based on the balance of power consumption according to the power consumption amount and surplus power amount of the power supply destination.
- the power demand at each supplier can be leveled. This allows each Power distribution among the supply destinations can be suitably performed.
- the management server may distribute surplus power to a supply destination that is predicted to lack power based on the transition of the aggregated power consumption information and surplus power information.
- power consumption and surplus power vary depending on each residence, each region, and the season, time zone, etc. It is possible to specify in advance supply destinations that are insufficient. In this regard, as in the above configuration, if surplus power is distributed and supplied to a supply destination that is predicted to lack power based on changes in the amount of consumed power and surplus power, electric power is Power distribution will be performed before the shortage occurs, and it will be possible to suppress the shortage of power.
- the management server may distribute the surplus power in preference to a predetermined supply destination among the supply destinations.
- the predetermined supply destination may be a supply destination with a small fluctuation in power consumption.
- the predetermined supply destination may be a supply destination with a small variation in power consumption and a fixed power consumption time.
- the supply destination may be an electric drive system of a public institution.
- system systems with small fluctuations in power consumption include electric drive systems of public institutions, such as street lights and incinerators, and their power consumption transitions are also fixed. It is normal. For this reason, as in the above configuration, the distribution is based on the comparison between the surplus power aggregated in the power distribution destination management server and the power demand required to operate the public institution system. If this is done, the necessary and sufficient power can be reliably supplied to this system.
- the supply destination may be a security system for preventing theft installed in a building.
- the above security system has a constant power consumption and usually operates at a specific time. For this reason, even in such a security system, it is possible to accurately predict the amount of surplus power required and the time zone that requires surplus power. In this respect, according to the above-described configuration, it is possible to reliably distribute and supply the necessary and sufficient surplus power during the required time period to supply surplus power to such a security system.
- the management server further includes a function of calculating an optimal mixing mode of various generated power in the power supply engine based on the aggregated power consumption information and surplus power information, and the optimal mixing of the calculated various generated power The aspect may be fed back to the power supply engine.
- a reduction in carbon dioxide emissions may be taken into account in the calculation of the optimal mixing mode of various generated power.
- the power supply environment can be used to generate power with the power supply engine based on the optimal mixing mode. Sex will be improved.
- the calculation of the optimum mixing mode of the various types of generated power may include a reduction in power generation cost.
- the power supply economy can be reduced by using the power supply engine based on the optimal mixing mode. Sex will be enhanced.
- the management server further has a function of obtaining information that can improve power use efficiency of each supply destination based on the aggregated power consumption information and surplus power information, and guiding the information via the communication unit.
- Each of the supply destinations may further include notification means for performing notification of the guidance via the remote meter reading device.
- the value of the supplied power varies depending on the power supply time zone and the amount of power supplied, and the power utilization efficiency changes in correlation with the time zone of power supply and the amount of power supplied.
- information that can improve power use efficiency is obtained based on the aggregated power consumption information and surplus power consumption information, and the obtained information is transmitted through a display device and a voice guidance device.
- the power use efficiency at each supply destination can be improved.
- the management server may further include a function of capturing environmental information including weather information via the communication unit, and correcting a distribution mode related to the power distribution based on the captured environmental information.
- the amount of electricity consumed and surplus electricity at the above power supply sources change in correlation with weather conditions such as weather and temperature, and environmental conditions such as political factors.
- weather conditions such as weather and temperature
- environmental conditions such as political factors.
- the management server is composed of a plurality of servers having a hierarchical structure and function sharing for each layer, and the remote meter-reading device installed at each supply destination is connected to the server at the lowest layer of the hierarchical servers.
- the power consumption amount information and surplus power amount information which are the information measured by the remote meter-reading device, are aggregated in the lowermost server, and are not connected to each other via the communication means.
- the power distribution target may be changed to a supply destination managed by an upper-layer server.
- each server at the lowest layer has a minimum group (region).
- the power consumption amount information and surplus power amount information of each supply destination as a unit are collected.
- the power consumption information and the surplus power consumption information in the minimum group unit aggregated in each lowermost server are managed by the upper management server.
- the power consumption information and surplus power information of each power supply destination are aggregated step by step, such as pole transformers and power company sales offices.
- the power distribution target is sequentially changed to the supply destination managed by the upper server whenever the power distribution in the lower server becomes limited.
- the power distribution target is sequentially changed to the supply destination managed by the upper server whenever the power distribution in the lower server becomes limited.
- first through power distribution based on the minimum power consumption information and surplus power consumption information between the minimum groups (between regions) managed by each server in the lowest layer.
- self-containment of power demand in the smallest area is achieved.
- the minimum Power distribution among regions (groups) will be performed by upper-layer servers.
- the lowermost server may be installed in a pole transformer as a sub management server.
- a pole transformer Normally, there are 5 to 10 houses as power suppliers under the above-mentioned pole transformer. According to the above configuration, each house supplied with power by this pole transformer has power. The smallest group of distributions. As a result, it will be possible to perform micro power distribution among houses, such as units of 5 to 10 units, where power is supplied from pole transformers, and power will be supplied efficiently to each supply destination. In doing so, the power transmission loss is suitably reduced.
- a sub-management server is installed on the pole transformer in this way, the sub-management server manages the power supply, the power consumption information, and the surplus power information for each residence. It becomes easy.
- an area server that manages power supply to the area to which each of the supply destinations is allocated is installed as an upper layer server of the sub-management server installed in the pole transformer, and power is distributed among the respective supply destinations. May be performed in units of these areas.
- an area server that manages the power supply to the area where each supply destination is allocated is provided as an upper layer server of the sub management server installed in the pole transformer. If power distribution is performed among the supply destinations in units of managed areas, power distribution among the pole transformers in the lower layer of the area server is more important than that. It will be possible to distribute power between areas consisting of groups. This enables self-containment of the power demand between the above-mentioned areas when power is distributed among the supply destinations by the hierarchized server. The invention's effect
- the power distribution system realizes power supply that enables self-containment of power demand at each power supply destination through power distribution according to the excess or deficiency of power among the power supply destinations. Will be able to.
- FIG. 1 is a block diagram showing a configuration of a power supply system to which a power distribution system according to the present invention is applied.
- FIG. 2 is a diagram schematically showing the system configuration of an embodiment of a power distribution system according to the present invention.
- FIG. 3 is a diagram schematically illustrating an installation mode of a sub management server according to the embodiment.
- FIG. 4 is a diagram schematically illustrating a connection mode between a sub management server and a power meter according to the embodiment.
- FIG. 5 is a block diagram showing a hierarchical structure of each server according to the embodiment.
- FIG. 6 is a graph showing a mixing mode of various generated power of the power supply engine according to the power demand.
- FIG. 7 is a flowchart showing a power distribution procedure by the sub management server according to the embodiment.
- FIG. 8 is a flowchart showing a power distribution procedure by the area server according to the embodiment.
- FIG. 9 is a flowchart showing a power distribution procedure by the center server of the embodiment.
- FIG. 10 is a diagram schematically showing a system configuration of another embodiment of the power distribution system according to the present invention.
- the power supply system 1 that supplies power to various devices installed in the home (lighting devices, air conditioners, home appliances, audiovisual devices, etc.) is installed in the home as the power supply destination. It has been.
- the electric power supply system 1 supplies the electric power of the solar cell 3 generated by sunlight in addition to the electric power of an AC commercial power source (AC power source) 2 for home use to various devices.
- AC power source AC commercial power source
- the power supply system 1 also powers AC equipment 6 that operates by inputting AC power from a commercial power supply (AC power supply). Supply.
- the power supply system 1 is provided with a control unit 7 and a DC distribution board (built-in DC breaker) 8 as the distribution board of the system 1.
- the power supply system 1 is provided with a control unit 9 and a relay unit 10 as devices for controlling the operation of the DC device 5 in the house.
- the control unit 7 is connected to an AC distribution board 11 1 for branching AC power via an AC power line 12.
- the control unit is connected to the commercial power source 2 via the AC distribution board 11 and to the solar cell 3 via the DC power line 13.
- the control unit 7 takes in AC power from the AC distribution board 11 and also takes in DC power from the solar battery 3, and converts these powers into predetermined DC power as equipment power. Then, the control unit 7 outputs the converted DC power to the DC distribution board 8 via the DC power line 14 or to the storage battery 16 as a power storage device via the DC power line 15. To output and store the same power.
- the storage battery 16 is used as a backup power source in the event of a power failure, for example.
- the storage battery 16 stores surplus power out of the power generated by the solar battery 3.
- the control unit 7 not only captures AC power, but also converts the power of the solar battery 3 and the storage battery 16 into AC power and supplies it to the AC distribution board 11.
- the control unit 7 exchanges data with the DC distribution board 8 via the signal line 17.
- the DC distribution board 8 is a type of breaker that supports DC power.
- the DC distribution board 8 branches the DC power input from the control unit 7 and outputs the branched DC power to the control unit 9 via the DC power line 1 8 or the DC power line 1 Or output to relay unit 10 via 9.
- the DC distribution board 8 exchanges data with the control unit 9 through the signal line 20 and exchanges data with the relay unit 10 through the signal line 21.
- a plurality of DC devices 5 are connected to the control unit 9. These DC devices 5 are connected to a control unit 9 via a DC supply line 22 that can carry both DC power and data by the same wiring.
- the DC supply line 22 is connected to the DC device 5 through a pair of wires by superimposing a communication signal that transmits data using a high-frequency carrier wave on the DC power that serves as the power source for the DC device. Transport.
- the control unit 9 acquires the DC power of the DC device 5 through the DC power line 1 8, and which DC device 5 is used based on the operation command obtained from the DC distribution board 8 through the signal line 20. Know what to control. Then, the control unit 9 controls the operation of the DC device 5 by outputting DC power and an operation command to the instructed DC device 5 via the DC supply line 22.
- the control unit 9 is connected via a DC supply line 22 to a switch 23 that is operated when switching the operation of the DC device 5 in the house. Further, for example, a sensor 24 for detecting a radio wave transmitted from an infrared ray remote controller is connected to the control unit 9 via a DC supply line 22. Therefore, not only the operation instruction from the DC distribution board 8 but also the operation of the switch 23 and the detection of the sensor 24, the communication signal is sent to the DC supply line 22 and the DC device 5 is controlled.
- a plurality of DC devices 5 are connected to the relay unit 10 via individual DC power lines 25, respectively.
- the relay unit 10 acquires the DC power of the DC device 5 through the DC power line 19 and determines which DC device 5 based on the operation command obtained from the DC distribution board 8 through the signal line 21. Figure out what will work.
- the relay unit 10 controls the operation of the DC device 5 by turning on and off the power supply to the DC power line 25 with a built-in relay for the instructed DC device 5.
- the relay unit 10 is connected to a plurality of switches 26 for manually operating the DC device 5. By operating the switches 26, the power supply to the DC supply line 25 is turned on at a relay.
- the DC device 5 is controlled by turning it off.
- a wall outlet or a floor outlet is connected to the DC distribution board 8 via a DC power line 28. If a DC device plug (not shown) is inserted into two DC outlets, DC power can be supplied directly to the device.
- the amount of commercial AC power source 2 used (consumption A power meter 29 is connected as a remote meter-reading device that can remotely measure the surplus power generated by the solar cell 3 and stored in the storage battery 16.
- the power meter 2 9 functions not only remote metering the consumption of electricity amount and the surplus power amount, for example, power line communication and wireless communication function is installed.
- the power meter 29 is a center of a power supply provider such as a power company that manages the power supply of each supply destination while aggregating the power consumption and surplus power consumption of each supply destination through power line carrier communication or wireless communication.
- Send to server (not shown).
- information that can improve the power use efficiency of each supply destination is obtained based on the power consumption information and surplus power information transmitted by the power meter 29, and the obtained information is stored in each house. Sent to the installed power meter 29.
- the power supply system 1 is provided with a network system 30 that enables various devices in the home to be controlled by network communication.
- the network system 30 is provided with a home server 31 as a control unit of the system 30.
- the home server 31 is connected to a home management server 32 outside the home via a network N such as the Internet, and is connected to a home device 3 4 via a signal line 33.
- the in-home server 31 operates using DC power acquired from the DC distribution board 8 via the DC power line 35 as a power source.
- a control box 36 that manages operation control of various devices in the home by network communication is connected to the home server 31 via a signal line 37.
- the control box 36 is connected to the control unit and the DC distribution board 8 via the signal line 17 and can directly control the DC device 5 via the DC supply line 38.
- a gas / water meter 39 that can remotely measure the amount of gas used or water is connected to the control box 36, and also connected to the operation panel 40 of the network system 30.
- the operation panel 40 is connected to a monitoring device 41 composed of, for example, a door phone slave, a sensor, or a camera.
- the operation panel 40 is connected to a notification means 42 including a display device and a voice guidance device for notifying various residents received by the power meter 29 to a resident of the house.
- a notification means 42 including a display device and a voice guidance device for notifying various residents received by the power meter 29 to a resident of the house.
- the information to be notified by this notification means 42 is: Electricity charges can be reduced if they are used. ”Electricity usage pattern models such as the optimal usage of various devices according to hourly electricity charges are guided. In addition, when selling surplus power generated by the above solar cells 3 etc., guidance will be given on the optimal power sale pattern model case for residents.
- the control box 3 6 When the home server 3 1 inputs operation commands for various devices in the home via the network N, the control box 3 6 notifies the control box 3 6 of the instructions so that the various devices operate in accordance with the operation commands. To work.
- the home server 3 1 can provide various information acquired from the gas and water meter 39 to the home management server 3 2 through the network N, and that the monitoring device 4 1 has detected an abnormality. 4 Accept from 0 This is also provided to the home management server 32 via the network N.
- the drive mode of various devices installed in the house can be managed centrally by the home server 31 and power can be efficiently supplied to these various devices. Will be able to.
- demand power used for various devices can be compensated for by surplus power such as power generated by power generation devices such as solar cells 3 and power stored in storage batteries 16 in the home. It will also be possible to self-contain demand.
- the balance of balance between the amount of power consumed and the amount of surplus power at the power supply destination varies depending on each house, each region, or environmental conditions such as weather conditions and time zones. . For this reason, when the amount of power consumed in the home becomes excessive, it becomes difficult to supply power according to the power demand in the home, resulting in a shortage of power.
- the amount of power generated by a power generation device such as solar cell 3 or the amount of power stored in storage battery 16 is greater than the amount of power consumed by various devices, surplus in the home The amount of power increases. In this way, it is difficult to maintain a balance between power consumption and surplus power even if a single house (supplier) tries to self-contain electricity demand. It is difficult to eliminate.
- FIG. 2 shows the schematic configuration of the power distribution system of this embodiment.
- this power supply system calculates the power consumption amount and surplus power amount of each residence 56 detected by the power meter 29 provided for each residence 56 as a power supply destination.
- a management server is provided for managing the power supply of each supply destination while consolidating.
- This management server is composed of a plurality of servers 51 to 53 having a hierarchical structure and function sharing for each hierarchy.
- the lowest-layer server 51 is a pole installed on the utility pole 54 as a sub-management server, as shown in Fig. 3. Power is supplied from the power supply organization via the power line to the sub-management server 51 and the pole transformer 55. There are about 5 to 10 houses as supply destinations, etc.
- each of these houses is equipped with the power meter 29 as shown in Fig. 4, and this power meter 2 9 reads the power consumption and surplus power consumption of each house 56.
- the power consumption information and surplus power consumption information of each supply destination 56 detected by the power meter 29 is sent via the power line L. It is collected in the sub management server 51 by the power line carrier communication. As a result, in the sub management server 51, the power consumption information and surplus power amount in the group are set to the minimum group unit for each house 56 supplied with power from the power supply organization via the pole transformer 55.
- the information is collected by the sub-management server 51, and based on the balance of power consumption according to the power consumption information and surplus power consumption information, the pole transformer 5 Power supply managed It is.
- each area server 52 provided in the upper layer of the sub-management server 51 an area where there are supply destinations such as dozens of houses 56, etc. composed of a group of a plurality of adjacent pole transformers 55,
- the power consumption amount information and surplus power amount information of each supply destination in the area are collected by power line carrier communication via the power line.
- an area unit managed by the area server 52 for example, an area such as a sales office unit of an electric power company is set.
- the power consumption information and surplus power consumption information of each supply destination existing in the area are managed in units of the pole transformer 55, and the power consumption information and The power supply to each pole transformer 55 is managed based on the balance of energy balance according to the surplus power information.
- each area server 52 provided in each area is linked by a network PN of a power supply provider such as an electric power company, and manages the power supply target divided into a plurality of areas. A network has been established.
- each supply managed by each area server 52 is provided.
- the previous power consumption information and surplus power information are managed on an area basis, and the power supply to each area is managed based on the balance of power consumption according to the power consumption information and surplus power information for each area. Is done.
- the power consumption amount information and surplus power amount information of each supply destination divided into a plurality of areas are comprehensively managed by the center server 53.
- the center server 53 acquires weather information such as precipitation probability, amount of solar radiation, cloud cover, temperature, humidity and other weather forecasts from information agencies such as the Japan Meteorological Agency. Calculate correction data based on the weather information for each area. Then, the distribution amount of surplus power among the houses 56a to 56e (Fig.
- each of the houses 5 6 a to 5 6 e shown in FIG. 5 has the power supply system 1 shown in FIG.
- the management server that composes this power distribution system has a tree-like hierarchical structure with sub-management server 51, area server 52, and center server 53 that are layered in stages.
- the scale of the group (area) of the supply destination where the power supply mode is managed is expanded in the order of the sub management server 51—area server 5 2 ⁇ center server 53.
- the sub-management server 5 1 a at the lowest layer among the above-described hierarchical servers has 5 5 a to 5 5 5 a to 5 6 Electricity meter installed in e 29 Each residence meter measured by 9 5 6 a to 5 6 e Power consumption information and surplus energy information and deficit electricity in each residence 5 6 a to 5 6 e Are aggregated. Further, correction data based on the weather information obtained by the center server 53 is delivered to the supplement management server 51 via the area server 52.
- the midnight power hours set by the power company that is, as shown in FIG.
- the sub-management server 5 1 a notifies the power meter 29 of the purchase amount determination notification for this power sale request.
- each residence 56a to 56e is based on the power consumption and surplus power consumption of each residence 56a to 56e collected by each power meter 29. Transition of power consumption and surplus power is learned. Then, based on the changes in the power consumption and surplus power consumption of each residence 5 6 a to 5 6 e, each residence 5 5 a A power usage pattern model of 6 a to 5 6 e is transmitted.
- the notification means for the power use pattern model and the power sale pattern model to report the guidance via the power meter 29 (remote meter reading device).
- Guidance is provided to residents in each residence 5 6 a to 5 6 e through 4 2.
- a sub-management server 51a for example, based on the energy consumption information of each of the aggregated residences 56a to 56e and the balance of energy consumption according to the surplus power consumption, And 5 6 b when a shortage of electricity is predicted,
- the surplus power of 5 6 c to 5 6 e is distributed and supplied.
- the amount of surplus power distributed to dwellings 5 6 a and 5 6 b where deficiency of electricity is predicted from dwellings 56 c to 56 e is corrected according to the correction data based on the weather information.
- the weather information for example, in the houses 5 6 a and 5 6 b where power shortage is predicted due to an increase in solar radiation.
- a correction is made to reduce the distribution of surplus power from residences 5 6 C to 5 6 e.
- the management area Balance information on the amount of power corresponding to the amount of power consumed and the amount of surplus power is transmitted from the sub management server 51a to the area server 52a on the upper layer.
- surplus power is distributed and supplied among the houses 5 6 a to 56 e according to the power consumption and surplus power of each house 5 6 a to 56 e.
- the sub-management servers 51a to 51d manage them based on the aggregated information. It is judged whether the balance of balance of each pole transformer 5 5 is maintained, that is, whether there is an excess or shortage of power.
- the sub-management server 5 1 b 1 The power distribution command to distribute and supply surplus power in the area managed by c to the area managed by sub-management server 5 1 b is sent from area server 5 2 a to sub-management server 5 1 c is notified. Also in this case, the distribution amount of surplus power is corrected according to the correction data based on the weather information.
- the area server Assuming that the power demand of the area managed by 5 2 a is self-contained, the power information of the management area is transmitted to the center server 53. Similarly, the center server 53 collects information on balance between power consumption and surplus power in each area managed by the area servers 52 b to 52 d, and insufficient power. .
- the balance of balance of each area managed by the area servers 52a to 52d is based on the aggregated information. It is judged whether it is maintained, that is, whether there is an excess or deficiency of power.
- the center server 5 3 The surplus power held by the area managed by the area server 52c is distributed and supplied to the area managed by the area server 52b The area server 52c is notified of the power distribution command to be performed. Also in this case, the surplus power distribution amount is corrected according to the correction data based on the weather information. In this way, through the distribution of surplus power among the areas managed by the area servers 52a to 52d, the power demand in each area can be self-contained.
- the center server 53 uses the power generated by thermal power generation, the power generated by hydropower, and the power generated by nuclear power based on the power consumption information and surplus power information of each area.
- the optimum mixing mode of the power and other various generated power is calculated. In calculating this optimal mixing mode, the reduction of carbon dioxide emissions, the reduction of power generation costs, and the importance of nuclear power generation are taken into account, and the optimal mixing from the viewpoints of environment, economy, stability, etc. Aspect is calculated.
- the excess or deficiency of power is resolved through stepwise power distribution from a micro area such as 5 5 units of pole transformer.
- the surplus power distribution path can be made the shortest distance in performing power distribution based on the power consumption amount and surplus power amount of the power supply destination.
- the transmission loss during the distribution and supply of surplus power is reduced appropriately, and the power demand between each supply destination and each area can be self-contained.
- FIGS. 7 shows a surplus power distribution procedure performed by the sub management server 51
- FIG. 8 shows a surplus power distribution procedure performed by the area server 52
- FIG. 9 shows a surplus power distribution procedure performed by the center server 53.
- each power meter 29 provided in each residence allocated as the management target uses the power consumption, surplus power, shortage power, etc.
- Power information is acquired via power line carrier communication (step S 1 0 1>.
- correction data based on the weather forecast obtained by the center server 53 is acquired via the area server 52 ( Step S 1 0 2).
- Model power use case guidance for each residence 56 may be calculated by any of the sub-management server 51, area server 52, and center server 53, In this example, This is calculated by the management server 51.
- the total power consumption and the total surplus power in the area managed by the sub management server 51, and the balance based on the total power consumption and the total surplus power are transmitted to the upper layer server 52 (step S 1 0 5).
- step S 1 0 6 the sub-management server 51 distributes power among the pole transformers 5 5 managed by each sub-management server 51 according to the power distribution instruction from the area server 52, and the area server 5
- step S 1 0 7 The self-containment of the electric power demand between each of the pole transformers 55 existing in the area managed by 2 becomes possible.
- each sub-management that manages each pole transformer 55 in the area allocated as the management target first, each sub-management that manages each pole transformer 55 in the area allocated as the management target. From the servers 5 1 a to 5 1 d, power information such as power consumption, surplus power, and insufficient power for each pole transformer 5 5 is acquired via power line carrier communication (step S 2 0 1). . Next, correction data based on the weather forecast obtained by the center server 53 is acquired from the center server 53, and the acquired correction data is transmitted to each sub-management server 51 in the lower layer of the area server 52. (Steps S 2 0 2 and S 2 0 3) 0
- Model power usage case guidance for the assigned area may be calculated by any of the area server 52 and the center server 53.
- step S 2 06 When power is distributed among the pole transformers 55 in this way, the total power consumption and total surplus power in the area managed by the area server 52, and the total power consumption and total surplus power Various power information such as the balance of payments based on the amount of power and the amount of insufficient power in the area is transmitted to the center support 53 in the upper layer (step S 2 06).
- step S 2 0 7 Is acquired from the center server 53.
- step S 2 0 8 Self-containment of the power demand between the carriers will be achieved.
- step S 3 0 in the center server 53 that manages each area server 52, first, weather information such as weather forecasts for each area such as the probability of precipitation, the amount of solar radiation, the amount of clouds, the temperature, the humidity, etc. Obtained from information agencies such as the Japan Meteorological Agency (step S 3 0 1).
- weather information for each area is acquired in this way, the power consumption, surplus power, shortage of power, etc. for each area is obtained from each area server 52 that manages the power supply of each allocated area. Power information is acquired through power line carrying communication (step S 3 0 2).
- Power line carrier communication using a power line as a medium is adopted as a communication means for transmitting and receiving various types of power information including the power consumption information and surplus power information.
- a separate communication path for remote meter reading of power consumption information and surplus power consumption information when distributing power among each residence, and existing wiring paths can be used.
- power line carrier communication as the communication means as described above, it becomes possible to integrally configure a power supply path for each supply destination and a communication path for various power information, etc. Management of supply power and various power information is also facilitated.
- Electric power is distributed among the suppliers based on the balance of energy consumption according to the amount of power consumed and surplus electricity.
- the power demand at each supplier can be leveled. It becomes possible to perform power distribution among the destinations favorably.
- the power supply organization can select a more desirable power source based on the power demand that takes into account the power consumption and surplus power at each power supply destination, and calculate the amount of power generated for each power source. As a result, power can be efficiently supplied to the supplier.
- the above-mentioned management server is configured by a plurality of servers having a hierarchical structure in which functions are shared for each hierarchization, and provided to each supply destination in the sub-management server 51 at the lowest layer in the hierarchy.
- the power consumption information and surplus power information that were read by each power meter 29 were collected.
- the power consumption amount information and surplus power amount information of each power supply destination are aggregated in stages, and the group ( It will be managed in units of (areas), and it will be possible to distribute power among these groups (areas).
- the self-sufficiency of power demand is gradually increased from a micro unit, such as between adjacent housings 56, to a macro unit, such as an electric power company's sales office unit or a region. Completion will be achieved.
- the sub-management server 5 1 is installed in the pole transformer 5 5 as the lowest layer and server of the hierarchized servers.
- the sub-management server 5 1 uses the pole transformer 5 5 to generate power. It is decided to manage information on power consumption, surplus power consumption, and power distribution of houses that are supplied with electricity. As a result, it becomes possible to perform micro power distribution among the 5 to 10 units of houses supplied with electric power from the pole transformer 55. The power transmission loss is also suitably reduced.
- the sub management server 51 is installed in the pole transformer 55 as described above, the power supply, power consumption information, and surplus power information of each residence 56 are collectively collected by the sub management server 51. Management becomes easier.
- Sub-management server 5 As an upper-layer server, area server 5 2 will be installed to manage the power supply to the area to which each supply destination is allocated, and power distribution among each supply destination will be It was decided to carry out by area. For this reason, not only power distribution among the pole transformers 55 under the area server 52, but also power distribution between areas composed of groups of such pole transformers 55 can be performed. . As a result, it becomes possible to achieve self-containment of power demand among the areas to which each supplier is allocated. In addition, the said embodiment can also be implemented with the following forms.
- the distribution mode for power distribution among each supply destination was corrected based on weather information.
- the environmental information for correcting the distribution mode concerning the power distribution among the supply destinations may include political factors such as power regulation.
- the environment information for correcting the distribution mode related to the power distribution among the supply destinations may be any information that can affect the power consumption amount or surplus power amount of each supply destination, and is not limited thereto. It is not a thing.
- the distribution mode for power distribution based on environmental information it is also possible to omit the correction.
- ⁇ Information that can improve the power usage efficiency of each supply target to be managed is obtained by each of the servers 51 to 53, and a notification means 42 is provided for guiding the information.
- a notification means 42 is provided for guiding the information.
- it may be performed only by the center server 53 of the uppermost layer, and any of the servers 51 to 53 calculates information that can increase the power usage efficiency of the supply destination. Is optional.
- calculation of information that can improve the power usage efficiency may be omitted.
- the above-mentioned surplus power supply destination is a supply destination that requires supply of surplus power based on the power consumption amount information and surplus power amount information of each supply destination.
- the present invention is not limited to this, and the surplus power may be distributed in preference to a predetermined supply destination among the supply destinations. This makes it possible to accurately and easily distribute power among the supply destinations.
- Electric power supply systems of public institutions such as street lamps and incinerators can be used for suppliers with small fluctuations in power consumption or those with small fluctuations in power consumption and fixed power consumption time. Can be specified.
- Such electric drive systems of public institutions usually have small fluctuations in power consumption due to their drive, and the drive time period is usually limited. For this reason, by specifying the electric drive system of the public institution as a surplus power supply destination in advance, the electric drive system of the public institution can be supplied with sufficient power in the required time zone. It is possible to
- the transition of the power consumption information and surplus power information aggregated in the sub-management server 51, area server 52, and center server 53 is learned.
- the surplus power may be distributed to the supply destination that is predicted to lack power based on the transition of the learned power consumption information and surplus power information. In this case, it is possible to predict in advance the supply destinations where power is insufficient, so that it is possible to reliably distribute power before such shortages occur. As a result, power shortages can be suppressed.
- surplus electricity in each residence 56 is distributed and supplied to each supplier.
- a configuration may be provided in which power storage compensation equipment 51 s is provided.
- a storage compensation facility 52 s capable of storing surplus power in the same area may be provided for each area managed by the area server 52.
- surplus power stored in each storage compensation facility 51 s and 52 s is distributed between each pole transformer 55 and between each area. By using it, the certainty of compensation of power distribution among the power supply destinations can be improved.
- the surplus power distribution and supply destination may be a power generation device such as the solar cell 3 or a residence, factory, facility, or the like that does not have the storage battery 16.
- the present invention is applicable as long as power is distributed according to the amount of power consumed and the amount of surplus power between the power supply destinations.
- Power distribution by each of the servers 5 "! To 53" is performed based on the balance of power consumption according to the power consumption information and surplus power information aggregated to them. Not limited to this
- the power distribution between the supply destinations may be performed based on the relationship between the power consumption amount information and the surplus power consumption amount information of each supply destination, and is not limited to this. Absent.
- the communication means is a power line carrier communication using a power line as a medium.
- the communication means is not limited to this, and network communication using the Internet as a medium may be employed.
- network communication with high versatility can be configured, and the above-described remote metering device collects the power consumption amount and surplus power amount of each supply destination in the management server.
- the scope of application can be expanded.
- the communication means can also be configured by various wireless communications such as UWB (UWRa: Wideband), WILAN, specific low-power wireless, and storage. In short, any power consumption information and surplus power information, which are information detected by the power meter 29, can be transmitted to the sub-management server 51.
- an area server 52 that manages the power supply to the area where each supply destination is allocated will be installed, and power distribution among the supply destinations We decided to do it as a unit.
- the area server 52 is omitted, and the power consumption information and surplus power consumption information aggregated in the sub-management server 51 are directly aggregated in the center server 53, and the power distribution between each supply destination It is also possible to adopt a configuration in which this is performed only between the pole transformers 55.
- the lowest layer sub management server 51 of a plurality of servers having a hierarchical structure is installed in the pole transformer 55, and power is supplied by the pole transformer 55.
- the power distribution is performed in units of each supply destination group.
- the unit of each supply destination managed by the lowest layered server may be a unit of two adjacent supply destinations, and the supply allocated to several tens to several hundreds The tip may be the unit.
- the management server is composed of a plurality of servers that have a hierarchical structure and share functions for each layer, and the power consumption information and surplus power information detected by the power meter 29 are layered. It was decided to consolidate to the lowest-layer server. Not limited to this, the management server is configured only by the center server 53, and the power consumption information and surplus power information detected by the power meter 29 are directly stored in the center server 53. They may be aggregated.
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- Supply And Distribution Of Alternating Current (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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EP10821644.1A EP2475071A4 (en) | 2009-10-05 | 2010-10-01 | DISTRIBUTION NETWORK OF ELECTRIC POWER |
CN2010800552026A CN102640391A (zh) | 2009-10-05 | 2010-10-01 | 电力分配系统 |
US13/500,156 US8862281B2 (en) | 2009-10-05 | 2010-10-01 | Electric power distribution system |
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JP2009-232016 | 2009-10-05 | ||
JP2009232016A JP2011083086A (ja) | 2009-10-05 | 2009-10-05 | 電力分配システム |
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WO2011042787A1 true WO2011042787A1 (ja) | 2011-04-14 |
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PCT/IB2010/002492 WO2011042787A1 (ja) | 2009-10-05 | 2010-10-01 | 電力分配システム |
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US (1) | US8862281B2 (ja) |
EP (1) | EP2475071A4 (ja) |
JP (1) | JP2011083086A (ja) |
CN (1) | CN102640391A (ja) |
WO (1) | WO2011042787A1 (ja) |
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Also Published As
Publication number | Publication date |
---|---|
EP2475071A4 (en) | 2015-06-10 |
US8862281B2 (en) | 2014-10-14 |
CN102640391A (zh) | 2012-08-15 |
EP2475071A1 (en) | 2012-07-11 |
US20120271474A1 (en) | 2012-10-25 |
JP2011083086A (ja) | 2011-04-21 |
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