WO2016047511A1 - 電力管理装置、電力管理方法及び電力管理システム - Google Patents
電力管理装置、電力管理方法及び電力管理システム Download PDFInfo
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- WO2016047511A1 WO2016047511A1 PCT/JP2015/076222 JP2015076222W WO2016047511A1 WO 2016047511 A1 WO2016047511 A1 WO 2016047511A1 JP 2015076222 W JP2015076222 W JP 2015076222W WO 2016047511 A1 WO2016047511 A1 WO 2016047511A1
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- power
- value
- integrated value
- power management
- customer facility
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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
- H02J13/00004—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 the power network being locally controlled
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/061—Details of electronic electricity meters
- G01R22/063—Details of electronic electricity meters related to remote communication
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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
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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
- H02J13/00001—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 the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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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
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D4/00—Tariff metering apparatus
- G01D4/002—Remote reading of utility meters
- G01D4/004—Remote reading of utility meters to a fixed location
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- G—PHYSICS
- G01—MEASURING; TESTING
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- G01R31/371—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with remote indication, e.g. on external chargers
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- H—ELECTRICITY
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- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
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- H—ELECTRICITY
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- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
- H02J2300/26—The renewable source being solar energy of photovoltaic origin involving maximum power point tracking control for photovoltaic sources
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- H—ELECTRICITY
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- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/30—The power source being a fuel cell
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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
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/10—The network having a local or delimited stationary reach
- H02J2310/12—The local stationary network supplying a household or a building
- H02J2310/14—The load or loads being home appliances
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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
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/50—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads
- H02J2310/56—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads characterised by the condition upon which the selective controlling is based
- H02J2310/62—The condition being non-electrical, e.g. temperature
- H02J2310/64—The condition being economic, e.g. tariff based load management
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- 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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- 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
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- 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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- 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
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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
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Definitions
- the present invention relates to a power management apparatus, a power management method, and a power management system for managing power information indicating power supplied from a power system to a customer facility.
- EMS Energy Management System
- HEMS Home Energy Management System
- BEMS Building Energy Management System
- FEMS Vectory Energy Management
- factories Fecility Energy Management Stores.
- Etc. Patent Document 1
- a smart meter having a communication function is being considered as a meter for measuring the power supplied from the power system to the customer facility.
- the smart meter has a function of transmitting an integrated value, which is a value obtained by collecting the power supplied from the power system to the customer facility for each predetermined period, to the power management apparatus.
- An object of the present invention is to provide a power management apparatus, a power management method, and a power management system that can improve convenience for consumers.
- the power management apparatus includes a power that flows within a certain period between the power system and the customer facility from a smart meter that measures the amount of power flowing between the power system and the customer facility.
- a first receiving unit that receives an integrated value that is a value obtained by summing up at predetermined intervals for each predetermined period, and a power sensor provided separately from the smart meter, and a measured value of the power flowing in the customer facility
- a second receiving unit that receives at an interval shorter than the predetermined interval, and a control unit that calculates complementary information that complements the integrated value based on the measured value.
- the power management method is a method of measuring power flowing between a power meter and a customer facility within a certain period from a smart meter that measures the amount of power flowing between the power system and the customer facility.
- An integrated value which is a value obtained by summing up, is received at predetermined intervals for each predetermined period, and a measured value of the electric power flowing in the customer facility is received from the power sensor provided separately from the smart meter from the predetermined interval.
- Complement information is received at short intervals and complements the integrated value based on the measured value.
- the power management system includes a power management device and a power sensor provided separately from the smart meter that measures the amount of power flowing between the power system and the customer facility.
- the power management device receives, from the smart meter, an integrated value that is a value obtained by summing up the electric power that has flowed between the power system and the customer facility within a predetermined period at predetermined intervals for each predetermined period.
- a first receiving unit, a second receiving unit that receives a measured value of power flowing in the customer facility from the power sensor at an interval shorter than the predetermined interval, and complements the integrated value based on the measured value
- a control unit for calculating complementary information is a control unit for calculating complementary information.
- FIG. 1 is a diagram illustrating a customer facility 10 according to the first embodiment.
- FIG. 2 is a diagram illustrating the smart meter 300 according to the first embodiment.
- FIG. 3 is a diagram illustrating the EMS 200 according to the first embodiment.
- FIG. 4 is a diagram illustrating information displayed by the EMS 200 according to the first embodiment.
- FIG. 5 is a diagram illustrating information displayed by the EMS 200 according to the first embodiment.
- FIG. 6 is a diagram illustrating a management method according to the first embodiment.
- FIG. 7 is a diagram illustrating a management method according to the first embodiment.
- FIG. 8 is a diagram for explaining correction according to the first modification.
- FIG. 9 is a diagram for explaining the correction according to the first modification.
- FIG. 10 is a diagram for explaining the display of complementary information according to the second modification.
- the power management apparatus totals the power that flows between the power system and the customer facility within a certain period from the smart meter that measures the amount of power flowing between the power system and the customer facility.
- a measured value of the power flowing in the customer facility from the first receiving unit that receives the integrated value that is the value obtained at predetermined intervals for each predetermined period and the power sensor provided separately from the smart meter.
- a second receiving unit that receives at intervals shorter than the interval, and a control unit that calculates complementary information that complements the integrated value based on the measurement value.
- the power management apparatus further includes a display unit that displays the fixed information indicating the integrated value received at regular intervals and the complementary information.
- the display unit displays the confirmed information and the complementary information in different modes.
- the second receiving unit receives the measured value from the power sensor after the nth (n is an integer equal to or greater than 0) time integrated value until the n + 1th integrated value is determined. Receive.
- the display unit displays the complementary information based on the measurement value during a period from when the nth integrated value is determined until the n + 1th integrated value is determined.
- the second receiving unit periodically receives the measurement value.
- the power management apparatus includes a correction unit that corrects the complementary information based on the integrated value when the first receiving unit receives the (n + 1) th integrated value.
- the display unit displays the complementary information based on the measurement value in a certain period in which the integrated value cannot be acquired.
- the power management apparatus includes a third reception unit that receives a power command message for requesting suppression of a tidal flow rate from the power system to the customer facility or a reverse tidal flow rate from the customer facility to the power system. .
- the control unit instructs the second receiving unit to change the interval for receiving the measurement value after receiving a signal indicating that the power command message has been received from the third receiving unit.
- the second receiving unit changes an interval for receiving the measurement value during a period of executing the content of the power command message.
- the power management device includes a distributed power source connected to the power system via the smart meter, a second power sensor installed on the side of the distributed power source with respect to the power sensor, and the second power sensor. And a fourth receiver for receiving the second measurement value at predetermined intervals.
- the fourth reception unit receives the second measurement value at the same interval as the interval at which the second reception unit receives the measurement value.
- the power management method totals the power that flows between the power system and the customer facility within a certain period from the smart meter that measures the amount of power flowing between the power system and the customer facility.
- the integrated value that is the value obtained is received at predetermined intervals for each predetermined period, and the measured value of the electric power flowing in the customer facility from the power sensor provided separately from the smart meter is shorter than the predetermined interval. And calculating supplementary information that supplements the integrated value based on the measured value.
- the power management system includes a power management device and a power sensor provided separately from a smart meter that measures the amount of power flowing between the power system and the customer facility.
- the power management device receives, from the smart meter, an integrated value that is a value obtained by summing up the electric power that has flowed between the power system and the customer facility within a predetermined period at predetermined intervals for each predetermined period.
- a first receiving unit, a second receiving unit that receives a measured value of power flowing in the customer facility from the power sensor at an interval shorter than the predetermined interval, and complements the integrated value based on the measured value
- a control unit for calculating complementary information.
- a power sensor that measures power similar to that of a smart meter is intentionally provided where a smart meter alone is sufficient.
- the customer facility 10 includes a distribution board 110, a load 120, a PV unit 130, a storage battery unit 140, a fuel cell unit 150, and a hot water storage unit 160.
- the customer facility 10 includes an EMS 200 and a smart meter 300.
- the smart meter 300 and the EMS 200 do not need to be provided in the building of the customer facility 10.
- Distribution board 110 is connected to power system 400. Distribution board 110 is connected to load 120, PV unit 130, storage battery unit 140, and fuel cell unit 150 via a power line.
- the distribution board 110 includes a CT (Current Transformer) sensor 110A that measures the power supplied from the power system 400 to the customer facility 10.
- the CT sensor 110 ⁇ / b> A is provided separately from the smart meter 300 for charging the power supplied from the power system 400 to the customer facility 10.
- the CT sensor 110 ⁇ / b> A is an example of a power sensor that measures power supplied from the power system to the customer facility 10.
- the value of electric power (that is, the measured value) measured by the CT sensor 110 ⁇ / b> A may be an integrated value of electric power supplied to the customer facility 10 in unit time, and is supplied to the customer facility 10. It may be an instantaneous value of power.
- the load 120 is a device that consumes power supplied through the power line.
- the load 120 includes devices such as a refrigerator, lighting, an air conditioner, and a television.
- the load 120 may be a single device or may include a plurality of devices.
- the PV unit 130 has a PV 131 and a PCS 132.
- the PV 131 is a device that generates power in response to the reception of sunlight.
- the PV 131 outputs the generated DC power.
- the amount of power generated by the PV 131 changes according to the amount of solar radiation applied to the PV 131.
- the PCS 132 is a device (Power Conditioning System) that converts DC power output from the PV 131 into AC power.
- the PCS 132 outputs AC power to the distribution board 110 via the power line.
- the PV unit 130 may have a pyranometer that measures the amount of solar radiation irradiated on the PV 131.
- the PV unit 130 is controlled by the MPPT (Maximum Power Point Tracking) method. Specifically, the PV unit 130 optimizes the operating point (a point determined by the operating point voltage value and the power value, or a point determined by the operating point voltage value and the current value) of the PV 131.
- MPPT Maximum Power Point Tracking
- the storage battery unit 140 includes a storage battery 141 and a PCS 142.
- the storage battery 141 is a device that stores electric power.
- the PCS 142 is a device (Power Conditioning System) that converts DC power output from the storage battery 141 into AC power.
- the fuel cell unit 150 includes a fuel cell 151 and a PCS 152.
- the fuel cell 151 is a device that generates electric power using fuel gas.
- the PCS 152 is a device (Power Conditioning System) that converts DC power output from the fuel cell 151 into AC power.
- the PCS 152 may be a multi-PCS integrated with at least one function of the PCS 132 of the PV unit 130 and the PCS 142 of the storage battery unit 140.
- the fuel cell unit 150 operates by load following control. Specifically, the fuel cell unit 150 controls the fuel cell 151 so that the power output from the fuel cell 151 follows the power consumption of the load 120, for example.
- the hot water storage unit 160 converts electric power into heat and accumulates heat.
- the hot water storage unit 160 has a hot water storage tank, and warms water supplied from the hot water storage tank by exhaust heat generated by the operation (power generation) of the fuel cell 151.
- the hot water storage unit 160 warms the water supplied from the hot water storage tank and returns the warmed hot water to the hot water storage tank.
- the EMS 200 is an example of a power management apparatus that manages power information indicating power supplied from the power system 400 to the customer facility 10.
- the EMS 200 is connected to the load 120, the PV unit 130, the storage battery unit 140, the fuel cell unit 150, and the hot water storage unit 160 via signal lines, and the load 120, the PV unit 130, the storage battery unit 140, the fuel The battery unit 150 and the hot water storage unit 160 are controlled.
- the EMS 200 may control the power consumption of the load 120 by controlling the operation mode of the load 120.
- the signal line that connects the EMS 200 and the device may be wireless or wired.
- the PV unit 130, the storage battery unit 140, and the fuel cell unit 150 may be collectively referred to as a distributed power source.
- the EMS 200 is connected to the CT sensor 110A and the smart meter 300 via signal lines, and communicates with the CT sensor 110A and the smart meter 300.
- the signal line connecting the EMS 200 and the CT sensor 110A and the signal line connecting the EMS 200 and the smart meter 300 may be wireless or wired.
- the smart meter 300 measures the power supplied from the power system 400 to the customer facility 10 and the power flowing backward from the customer facility 10.
- the smart meter 300 is connected to the power line on the power system 400 side of the distribution board 110 and measures the amount of power flowing through the power line.
- the smart meter 300 is a device for calculating the incentive for charging the power supplied from the power system 400 to the customer facility 10 and for the reversely flowing power.
- the smart meter 300 transmits, to the EMS 200, an integrated value that is a value obtained by counting the power supplied from the power system 400 to the customer facility 10 every certain period (for example, 30 minutes).
- the smart meter 300 may transmit the total time indicating the time when the total value is totaled to the EMS 200 together with the total value.
- the smart meter 300 includes a communication unit 310, a measurement unit 320, a time counter 330, and a control unit 340.
- the communication unit 310 is composed of a communication module and communicates with the EMS 200. Specifically, the communication unit 310 transmits the integrated value described above to the EMS 200. The communication unit 310 may transmit the aggregation time to the EMS 200 together with the integrated value described above.
- the measuring unit 320 measures the power supplied from the power system 400 to the customer facility 10.
- the time counter 330 is constituted by a clock transmitter or the like, and counts time by counting up or counting down. It should be noted that the total time described above is a time specified with reference to the time counted by the smart meter 300 (time counter 330).
- the control unit 340 includes a CPU (Central Processing Unit) and a memory, and controls the smart meter 300. Specifically, the control unit 340 adds up the electric power measured by the measurement unit 320 every certain period (for example, 30 minutes). The control unit 340 instructs the communication unit 310 to transmit the integrated value when the integrated value is aggregated. The control unit 340 may instruct the communication unit 310 to transmit the integrated value and the total time.
- a CPU Central Processing Unit
- the EMS 200 includes a communication unit 210, a display unit 220, a time counter 230, and a control unit 240.
- the communication unit 210 is constituted by a communication module, and communicates with a device connected via a signal line. Similarly, the communication unit 210 communicates with the CT sensor 110A and the smart meter 300 that are connected via a signal line.
- the communication unit 210 calculates an integrated value, which is a value obtained by counting the power supplied from the power system 400 to the customer facility 10 every certain period (for example, 30 minutes) at a predetermined interval (for example, 30 minutes). ) From the smart meter 300.
- the communication unit 210 determines the amount of electric power supplied from the power system 400 to the customer facility 10 after the nth (n is an integer equal to or greater than 0) time integrated value and until the n + 1th integrated value is determined.
- the measurement value is received from the CT sensor 110A.
- the communication unit 210 is set so as to periodically receive measurement values at intervals shorter than a predetermined interval (for example, 30 minutes).
- the intervals at which the measurement values are received from the CT sensor 110A may be constant intervals or different intervals.
- the display unit 220 includes a display and displays various information. Specifically, the display unit 220 constitutes a display unit that displays fixed information indicating an integrated value received at regular intervals. The display unit 220 displays complementary information that complements the integrated value based on the measured value during the period from the determination of the nth integrated value to the determination of the (n + 1) th integrated value.
- the display unit 220 displays the integrated value received from the smart meter 300 (that is, the confirmed integrated value) as confirmed information.
- 4 and 5 are cases where n is 3 or more.
- the display unit 220 displays the integrated value calculated based on the measured value received from the CT sensor 110A (that is, the indeterminate integrated value) as complementary information.
- the indeterminate integrated value is calculated by integrating the measurement value interval and the measurement value.
- the indeterminate integrated value may be displayed so as to increase each time a measured value is received (if it is a bar graph, it is stacked).
- the measurement value may change the mode (for example, color) depending on the time zone to which the received period belongs.
- the integrated value provided by the display unit 220 may be in units of 30 minutes or in units of 1 hour.
- the integrated value is displayed in units of 30 minutes.
- the time counter 230 is constituted by a clock transmitter or the like, and counts time by counting up or counting down.
- the control unit 240 includes a CPU and a memory, and controls the EMS 200. Specifically, the control unit 240 manages the integrated value received from the smart meter 300. Further, the control unit 240 calculates an undetermined integrated value based on the measurement value received from the CT sensor 110A.
- step S ⁇ b> 10 the EMS 200 obtains an integrated value, which is a value obtained by totaling the power supplied from the power system 400 to the customer facility 10 every certain period (for example, 30 minutes) Receive at predetermined intervals.
- Step S10 is repeated for a certain period.
- the subscript (subscript) of the step number indicates the number of times the integrated value is received.
- step S20 the EMS 200 receives the measured value of the power supplied from the power system 400 to the customer facility 10 from the CT sensor 110A. Step S20 is repeated at a predetermined interval.
- the subscript (subscript) of the step number indicates the number of times the integrated value is received.
- step S110 the EMS 200 determines whether or not a graph display request has been received by a user operation. If the determination result is YES, the EMS 200 proceeds to the process of step S120. On the other hand, when the determination result is NO, the EMS 200 maintains a standby state for a user operation.
- step S120 the EMS 200 determines whether a display request for an indeterminate period has been received by a user operation. If the determination result is YES, the EMS 200 proceeds to the process of step S130. On the other hand, if the determination result is NO, the EMS 200 proceeds to the process of step S150.
- step S130 the EMS 200 displays the integrated value received from the smart meter 300 (that is, the determined integrated value) as fixed information (see FIG. 4).
- step S140 the EMS 200 displays the integrated value calculated based on the measured value received from the CT sensor 110A (that is, the indeterminate integrated value) as complementary information in addition to the determined integrated value displayed in step S130. (See FIG. 5).
- step S130 and step S140 have been described as separate processes, but step S130 and step S140 may be performed simultaneously.
- step S150 the EMS 200 displays the integrated value received from the smart meter 300 (that is, the determined integrated value) as fixed information (see FIG. 4).
- the EMS 200 (display unit 220) is provided separately from the smart meter 300 after the nth integrated value is determined and until the (n + 1) th integrated value is determined.
- Complement information for complementing the integrated value is displayed based on the measured value received from the received CT sensor 110A. Therefore, even if the smart meter 300 is not requested to transmit an instantaneous value, the integrated value determined every certain period can be supplemented.
- the EMS 200 (control unit 240) is displayed based on the measurement value received from the CT sensor 110A based on the integrated value received from the smart meter 300. Complementary information is corrected. For example, when the EMS 200 (control unit 240) receives the (n + 1) th integrated value, the n + 1th integrated value is determined after the nth integrated value is determined based on the (n + 1) th integrated value (confirmed integrated value). The supplementary information displayed is corrected based on the measurement value received from the CT sensor 110A until it is fixed.
- the EMS 200 compares the integrated value calculated based on the measured value received from the CT sensor 110A with the integrated value received from the smart meter 300.
- the integrated value calculated based on the measured value received from the CT sensor 110A is also It should be noted that this is an estimate over a certain period (eg, 30 minutes).
- EMS200 calculates the correction coefficient of the measured value received from CT sensor 110A based on such a comparison result. For example, as shown in FIG. 8, when the integrated value received from the smart meter 300 is larger than the integrated value calculated based on the measured value received from the CT sensor 110A, the correction coefficient is a value larger than 1. is there.
- EMS200 corrects the measured value received from CT sensor 110A by multiplying the measured value received from CT sensor 110A by a correction coefficient, as shown in FIG.
- the EMS 200 displays complementary information based on the measurement value in a certain period in which the integrated value cannot be acquired from the smart meter 300 at a predetermined interval. .
- the EMS 200 (control unit 240) manages the integrated value received from the smart meter 300 and calculates the integrated value calculated based on the measured value received from the CT sensor 110A. to manage.
- the (n + 1) th integrated value is missing from the integrated values received from the smart meter 300.
- the EMS 200 displays the integrated value calculated based on the measurement value received from the CT sensor 110A as the supplementary information for the (n + 1) th period.
- the EMS 200 receives a tidal current suppression message (for example, DR: Demand Response) that requests suppression of tidal flow (power supply amount) to the customer facility 10 from the power system.
- a tidal current suppression message for example, DR: Demand Response
- the EMS 200 transmits a reverse flow suppression message requesting suppression of the reverse flow rate to the power system from the customer facility 10.
- the power flow suppression message and the reverse power flow suppression message are collectively referred to as a power command message.
- the tidal current suppression message includes information indicating the suppression degree of the amount of power (tidal flow rate) supplied from the power system to the customer facility 10.
- the reverse power flow suppression message includes information indicating the degree of suppression of the amount of power (reverse power flow) output from the customer facility 10 to the power system.
- the degree of suppression may be expressed as an absolute value of electric energy (for example, OO kW).
- the suppression degree may be represented by a relative value of the electric energy (for example, a decrease in OO kW).
- the suppression degree may be expressed as a power consumption suppression ratio (for example, OO%).
- the tidal current suppression message may include information indicating a power purchase price that is a price of tidal current from the power system.
- the suppression ratio of reverse power flow suppression is a ratio with respect to the output (hereinafter referred to as equipment approval output) certified as the output capability of the PCS that controls the distributed power supply when installing the distributed power supply in the customer facility 10. May be.
- equipment approval output certified as the output capability of the PCS that controls the distributed power supply when installing the distributed power supply in the customer facility 10. May be.
- the facility certified output is the smaller output capability of these output capabilities.
- the facility authorization output is the sum of the output capacities of the plurality of PCSs.
- a format compliant with an automatic demand response can be used as a format of the power flow suppression message and the reverse power flow suppression message.
- ADR automatic demand response
- a method conforming to this standard for example, a method conforming to the Open ADR standard can be used.
- the interval at which the measured value is received from the CT sensor 110A may be changed around the time when the power command message is started. More specifically, the interval at which the measurement value is received from the CT sensor 110A may be shortened from a predetermined time (for example, 10 minutes) before the content of the power command message is started. For example, normally, when the measurement value is periodically received from the CT sensor 110A at the first interval, a second interval (for example, 1) shorter than the first interval from a predetermined time before the power command message is started. The measured value may be received every minute).
- the interval at which the measured value is received within the execution period of the power command message may be changed. More specifically, when the power command message is a demand response, a shorter interval is obtained when the indeterminate integrated value calculated based on the measured value approaches the threshold set according to the suppression amount. The measured value may be received at.
- a distributed power source such as the PV unit 130 is connected to the power system 400 via the smart meter 300.
- “Through the smart meter 300” means that they may be connected in series, or may be connected in parallel as shown in FIG.
- a second CT sensor (second power sensor) different from the CT sensor 110A is installed closer to the distributed power source than the CT sensor 110A. More specifically, the second CT sensor is installed between the branch point and the distributed power supply in order to measure the input / output power of the distributed power supply branched from the power line.
- the communication unit 310 receives the second measurement value from the second CT sensor at a predetermined interval.
- the second measured value is a value indicating the input / output power of the distributed power supply.
- the predetermined interval for receiving the second measurement value may be set as appropriate. For example, it may be set to the same interval as the measurement value received from the CT sensor 110A. Note that the predetermined interval for receiving the second measurement value may be set shorter than the interval for receiving the measurement value, or may be set longer than the interval for receiving the measurement value.
- the EMS 200 may display a breakdown of the complementary information on the display unit 220 based on the second measurement value.
- the breakdown of the supplementary information By displaying the breakdown of the supplementary information, the power status can be grasped more finely, so that the convenience for the consumer can be improved.
- the second measurement value may be corrected according to the correction of the measurement value.
- the CT sensor 110 ⁇ / b> A is provided in the distribution board 110.
- the CT sensor 110 ⁇ / b> A only needs to be provided at a position where the power supplied from the power system 400 to the customer facility 10 can be measured.
- the EMS 200 may display the complementary information in a mode different from the confirmed information.
- the color for displaying the complementary information may be different from the color for displaying the fixed information.
- the display mode of complementary information may be blinking, and the display mode of fixed information may be lit.
- the communication between the EMS 200 and the CT sensor 110A and the communication between the EMS 200 and the smart meter 300 conform to the ECHONET Lite system.
- the communication between the EMS 200 and the CT sensor 110A and the communication between the EMS 200 and the smart meter 300 may conform to other communication protocols.
- the EMS 200 may be a home server provided in the customer facility 10.
- the EMS 200 may be a user terminal represented by a smartphone.
- the power management device may be installed in BEMS (Building Energy Management System), may be installed in FEMS (Factor Energy Management System), or may be installed in SEMS (Store Energy Management).
- BEMS Building Energy Management System
- FEMS Vector Energy Management System
- SEMS Store Energy Management
- the present invention is useful for power management technology.
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Abstract
Description
実施形態に係る電力管理装置は、電力系統と需要家施設との間に流れる電力量を計測するスマートメータから、前記電力系統と前記需要家施設との間に一定期間内に流れた電力を集計した値である積算値を前記一定期間毎に所定間隔で受信する第1受信部と、前記スマートメータとは別に設けられた電力センサから、前記需要家施設内に流れる電力の計測値を前記所定間隔よりも短い間隔で受信する第2受信部と、前記計測値に基づいて前記積算値を補完する補完情報を算出する制御部とを備える。
(需要家施設)
以下において、第1実施形態に係る需要家施設について説明する。
以下において、第1実施形態に係るスマートメータについて説明する。
以下において、第1実施形態に係る電力管理装置について説明する。
以下において、第1実施形態に係る管理方法について説明する。
以下において、第1実施形態の変更例1について説明する。以下においては、第1実施形態に対する相違点について主として説明する。
以下において、第1実施形態の変更例2について説明する。以下においては、第1実施形態に対する相違点について主として説明する。
以下において、第1実施形態の変更例3について説明する。以下においては、第1実施形態又は第2実施形態に対する相違点について主として説明する。
以下において、第1実施形態の変更例3について説明する。以下においては、第1実施形態又は第2実施形態に対する相違点について主として説明する。
本発明は上述した実施形態によって説明したが、この開示の一部をなす論述及び図面は、この発明を限定するものであると理解すべきではない。この開示から当業者には様々な代替実施形態、実施例及び運用技術が明らかとなろう。
Claims (14)
- 電力系統と需要家施設との間に流れる電力量を計測するスマートメータから、前記電力系統と前記需要家施設との間に一定期間内に流れた電力を集計した値である積算値を前記一定期間毎に所定間隔で受信する第1受信部と、
前記スマートメータとは別に設けられた電力センサから、前記需要家施設内に流れる電力の計測値を前記所定間隔よりも短い間隔で受信する第2受信部と、
前記計測値に基づいて前記積算値を補完する補完情報を算出する制御部とを備える電力管理装置。 - 前記一定期間毎に受信する前記積算値を示す確定情報、及び前記補完情報を表示する表示部をさらに備える請求項1に記載の電力管理装置。
- 前記表示部は、前記確定情報と前記補完情報とを異なる態様で表示する請求項2に記載の電力管理装置。
- 前記第2受信部は、n(nは0以上の整数)回目の積算値が確定してからn+1回目の積算値が確定するまでの間において、前記電力センサから前記計測値を受信する請求項1乃至請求項3のいずれか1項に記載の電力管理装置。
- 前記表示部は、前記n回目の積算値が確定してから前記n+1回目の積算値が確定するまでの間において、前記計測値に基づいて前記補完情報を表示する請求項4に記載の電力管理装置。
- 前記第2受信部は、周期的に前記計測値を受信する請求項1乃至請求項4のいずれか1項に記載の電力管理装置。
- 前記第1受信部が前記n+1回目の積算値を受信すると、当該積算値に基づいて前記補完情報を補正する補正部を備える請求項1に記載の電力管理装置。
- 前記表示部は、前記積算値を取得できなかった一定期間において、前記計測値に基づいて前記補完情報を表示する請求項2に記載の電力管理装置。
- 前記電力系統から前記需要家施設に対する潮流量又は前記需要家施設から前記電力系統に対する逆潮流量の抑制を要求する電力指令メッセージを受信する第3受信部を有し、
前記制御部は、前記第3受信部から前記電力指令メッセージを受信した旨の信号を受信した後、前記第2受信部に前記計測値を受信する間隔を変更するように指示する請求項1乃至請求項8のいずれか1項に記載の電力管理装置。 - 前記第2受信部は、前記電力指令メッセージの内容を実行する期間中に前記計測値を受信する間隔を変更する請求項9に記載の電力管理装置。
- 前記電力系統に前記スマートメータを介して接続された分散電源と、
前記電力センサよりも前記分散電源側に設置された第2電力センサと、
前記第2電力センサから第2計測値を所定の間隔で受信する第4受信部とをさらに有する請求項1乃至請求項10のいずれか1項に記載の電力管理装置。 - 前記第4受信部は、前記第2計測値を、前記第2受信部が前記計測値を受信する間隔と同じ間隔で受信する請求項11に記載の電力管理装置。
- 電力系統と需要家施設との間に流れる電力量を計測するスマートメータから、前記電力系統と前記需要家施設との間に一定期間内に流れた電力を集計した値である積算値を前記一定期間毎に所定間隔で受信し、
前記スマートメータとは別に設けられた電力センサから、前記需要家施設内に流れる電力の計測値を前記所定間隔よりも短い間隔で受信し、
前記計測値に基づいて前記積算値を補完する補完情報を算出する電力管理方法。 - 電力管理装置と、
電力系統と需要家施設との間に流れる電力量を計測するスマートメータとは別に設けられた電力センサとを備え、
前記電力管理装置は、
前記スマートメータから、前記電力系統と前記需要家施設との間に一定期間内に流れた電力を集計した値である積算値を前記一定期間毎に所定間隔で受信する第1受信部と、
前記電力センサから、前記需要家施設内に流れる電力の計測値を前記所定間隔よりも短い間隔で受信する第2受信部と、
前記計測値に基づいて前記積算値を補完する補完情報を算出する制御部とを備える電力管理システム。
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JP (1) | JP6386064B2 (ja) |
WO (1) | WO2016047511A1 (ja) |
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JP2017212861A (ja) * | 2016-05-27 | 2017-11-30 | 日本電気株式会社 | 電力調整システム、情報処理装置、情報処理方法、およびプログラム |
JP2021164201A (ja) * | 2020-03-30 | 2021-10-11 | 東京瓦斯株式会社 | 電力監視制御装置、電力監視制御プログラム |
JP2021192576A (ja) * | 2020-06-05 | 2021-12-16 | 東京瓦斯株式会社 | 電力監視制御装置、及び電力監視制御プログラム |
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JP6586076B2 (ja) * | 2013-03-15 | 2019-10-02 | フルークコーポレイションFluke Corporation | 分離した無線モバイル装置を用いて赤外線画像に可視的な視聴覚の注釈付け |
JP6699557B2 (ja) * | 2014-11-07 | 2020-05-27 | 日本電気株式会社 | 通信システム、通信装置、その制御方法、およびプログラム |
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- 2015-09-16 US US15/511,604 patent/US20170307665A1/en not_active Abandoned
- 2015-09-16 WO PCT/JP2015/076222 patent/WO2016047511A1/ja active Application Filing
- 2015-09-16 EP EP15844196.4A patent/EP3200315B1/en active Active
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JP2017212861A (ja) * | 2016-05-27 | 2017-11-30 | 日本電気株式会社 | 電力調整システム、情報処理装置、情報処理方法、およびプログラム |
JP2021164201A (ja) * | 2020-03-30 | 2021-10-11 | 東京瓦斯株式会社 | 電力監視制御装置、電力監視制御プログラム |
JP7356946B2 (ja) | 2020-03-30 | 2023-10-05 | 東京瓦斯株式会社 | 電力監視制御装置、電力監視制御プログラム |
JP2021192576A (ja) * | 2020-06-05 | 2021-12-16 | 東京瓦斯株式会社 | 電力監視制御装置、及び電力監視制御プログラム |
JP7350693B2 (ja) | 2020-06-05 | 2023-09-26 | 東京瓦斯株式会社 | 電力監視制御装置、及び電力監視制御プログラム |
Also Published As
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EP3200315B1 (en) | 2020-05-27 |
US20170307665A1 (en) | 2017-10-26 |
JP6386064B2 (ja) | 2018-09-05 |
JPWO2016047511A1 (ja) | 2017-08-03 |
EP3200315A4 (en) | 2018-06-27 |
EP3200315A1 (en) | 2017-08-02 |
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