WO2011070762A1 - 電力情報収集装置、電力測定装置、電力情報収集システム、及び電力情報収集方法 - Google Patents
電力情報収集装置、電力測定装置、電力情報収集システム、及び電力情報収集方法 Download PDFInfo
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- WO2011070762A1 WO2011070762A1 PCT/JP2010/007089 JP2010007089W WO2011070762A1 WO 2011070762 A1 WO2011070762 A1 WO 2011070762A1 JP 2010007089 W JP2010007089 W JP 2010007089W WO 2011070762 A1 WO2011070762 A1 WO 2011070762A1
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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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- 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
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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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- 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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- 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
- 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 information collection device that collects power information including a power consumption value for each of a plurality of devices.
- total power consumption value exceeds the upper limit of the usable power value (hereinafter referred to as “maximum usable power value”), for example.
- maximum usable power value there are devices that are not preferable to be turned off during operation, such as a microwave oven, a rice cooker, or a personal computer.
- FIG. 19 is a diagram for explaining a problem to be solved by the invention. Specifically, FIG. 19 is a graph showing the time transition of the total power consumption value.
- Time t1 is the time when one of the devices with a large power consumption value starts to operate.
- time t2 is the time when another device having a large power consumption value starts to operate.
- the control for suppressing the power consumption value for each device is delayed, and the total power consumption value is the maximum usable power. The value is exceeded.
- Such a delay in collecting power information is more likely to occur as the number of devices increases. For example, when power information is collected sequentially from a plurality of devices, the frequency of collecting power information from each device decreases as the number of devices increases. Therefore, when the power consumption of a device changes greatly immediately after the power information of a device is collected, it is delayed to grasp the change. As a result, the control for suppressing the power consumption value is also delayed, and the total power consumption value exceeds the maximum usable power value.
- the present invention has been made in view of the above problems, and a power information collection device and the like that can efficiently collect power information when collecting power information including power consumption values from a plurality of devices.
- the purpose is to provide.
- a power information collecting apparatus is a power information collecting apparatus that collects power information including a power consumption value for each of a plurality of devices.
- a power change rate indicating a degree of increase or decrease in power consumption value using a communication unit that collects information, a data holding unit that holds power information collected by the communication unit, and power information held in the data holding unit
- a control unit that controls the communication unit such that the frequency with which the power information is collected increases as the power change rate calculated by the change rate calculation unit increases.
- power information can be collected at a frequency corresponding to the power change rate of the device, so that power information of a device that has a large influence on the total power consumption value can be preferentially collected efficiently. That is, the collection frequency of power information of a device that has a large influence on the total power consumption value can be made higher than the collection frequency of other devices. Therefore, it is possible to efficiently collect power information within a range that does not exceed the capabilities of the power information collection device (such as power information processing capability or communication capability). Further, by using the power information collected in this way, it is possible to quickly grasp the change in the total power consumption value, and it is possible to suppress exceeding the maximum usable power value.
- the change rate calculation unit calculates the power change rate for each device using the power information collected most recently among the power information held in the data holding unit.
- the change rate calculation unit calculates a maximum power change rate, which is the largest power change rate among the power change rates in a plurality of periods, for each device as the power change rate.
- the change rate calculation unit calculates an average power change rate that is an average value of power change rates in a plurality of periods as the power change rate for each device.
- power information can be collected according to the averaged power change rate, so that power information can be collected stably and efficiently.
- control unit determines whether or not a total power consumption value that is a sum of power consumption values of the plurality of devices exceeds a first threshold value, and if the total power consumption value exceeds the first threshold value, It is preferable to control the communication unit such that the frequency of collection of power information by the communication unit increases as the rate of change increases.
- the first threshold is a maximum use that indicates an upper limit value of a total power consumption value that can be used as a product of a maximum power change rate that is the largest of the maximum power change rates of the plurality of devices and a predetermined period. It is a value obtained by subtracting from the possible power value, and the maximum power change rate is preferably the largest power change rate among the power change rates in a plurality of periods.
- the first threshold value is dynamically determined according to the maximum power change rate, it is possible to dynamically determine whether or not the total power consumption value is likely to exceed the maximum usable power value. Then, when there is a high possibility that the total power consumption value exceeds the maximum usable power value, it is possible to efficiently collect power information of devices that have a large influence on the total power consumption value.
- control unit controls the communication unit not to collect power information of a device having a maximum power change rate smaller than the second threshold when the total power consumption value exceeds the first threshold.
- the maximum usable power value is preferably a power value determined by a contract with an electric power company.
- the maximum usable power value is preferably a power value that can be supplied by a power supply device that supplies power to the plurality of devices.
- the maximum usable power value is preferably a sum of a power value determined by a contract with a power company and a power value that can be supplied by a power supply device that supplies power to the plurality of devices.
- the maximum usable power value is a target value of the maximum usable power set in advance by the user.
- the communication unit receives supplyable power information including a supplyable power value measured in the power supply device, and the control unit further uses the supplyable power information received by the communication unit.
- the maximum usable power value is calculated, and the communication unit is controlled according to the first threshold value obtained from the calculated maximum usable power value.
- the maximum usable power value can be dynamically changed according to the change in the power value that can be supplied by the power supply device, and the power information can be collected efficiently.
- control unit further controls the communication unit such that the collection frequency of the suppliable power information increases as the change rate of the suppliable power value increases.
- control unit further controls the plurality of devices using power information collected by the communication unit.
- the device can be controlled using the power information collected according to the power change rate, the possibility that the total power consumption value exceeds the maximum usable power value can be reduced.
- the power measurement device is a power measurement device that is connected to at least one device and transmits power information including a power consumption value of the connected device to a power information collection device, Using the power measurement unit that measures the power consumption value of the device, the data holding unit that holds the power information including the power consumption value measured by the power measurement unit, and the power information held in the data holding unit, Calculated by a change rate calculation unit that calculates a power change rate indicating the degree of increase or decrease of the power consumption value, a communication unit that transmits power information held in the data holding unit to a power information collection device, and the change rate calculation unit.
- a control unit that controls the communication unit such that the frequency of transmission of power information increases as the power change rate increases.
- the transmission frequency of the power information can be changed according to the power change rate, that is, according to the magnitude of the influence on the total power consumption value. Therefore, other devices to which the power information is transmitted from the power measuring device can efficiently collect the power information of devices that have a large influence on the total power consumption value.
- the change rate calculation unit calculates the power change rate using power information indicating a power consumption value measured most recently among the power information held in the data holding unit.
- the power information can be transmitted according to the latest power change rate, the power information can be transmitted with the transmission frequency according to the current situation.
- the change rate calculation unit calculates a maximum power change rate, which is the largest power change rate among the power change rates in a plurality of periods, for each device as the power change rate.
- the change rate calculation unit calculates an average power change rate that is an average value of power change rates over a plurality of periods as the power change rate for each device.
- the power information can be transmitted according to the average power change rate, so that the transmission frequency can be changed stably.
- the power information collection system includes a power information collection device that collects power information including a power consumption value for each of a plurality of devices, and the at least one device connected to the power information collection device.
- a power information collection system comprising: a power measurement device that transmits power information of a device to a power information collection device, wherein the power information collection device includes a first communication unit that collects power information for each device; A first data holding unit that holds power information collected by one communication unit, and a power change rate that indicates a degree of increase or decrease in the power consumption value for each device using the power information held in the first data holding unit.
- a control unit that controls the first communication unit so that the frequency of collecting power information increases as the power change rate calculated by the change rate calculation unit increases.
- a second power measurement unit that measures a power consumption value of a connected device, and second data that holds power information including the power consumption value measured by the power measurement unit.
- a holding unit and a second communication unit that transmits the power information held in the second data holding unit to the power information collection device.
- An integrated circuit is an integrated circuit that collects power information including a power consumption value for each of a plurality of devices, the communication unit collecting power information for each device, and the communication A data holding unit that holds the power information collected by the unit, and a change rate calculation that calculates a power change rate indicating a degree of increase or decrease in the power consumption value for each device using the power information held in the data holding unit And a control unit that controls the communication unit so that a device with a larger power change rate calculated by the change rate calculating unit has a higher power information collection frequency.
- the present invention can be realized not only as such a power information collecting device or a power measuring device, but also as a power information collecting method in which the operation of the characteristic components included in the power information collecting device is used as a step. be able to.
- the present invention can also be realized as a program for causing a computer to execute each step included in such a power information collecting method. Needless to say, such a program can be distributed via a recording medium such as a CD-ROM or a transmission medium such as the Internet.
- the power information can be collected at a frequency corresponding to the power change rate of the device, so that the power information of the device having a large influence on the total power consumption value can be preferentially collected.
- FIG. 1 is a diagram showing an overview of a power information collection system according to Embodiment 1 of the present invention.
- FIG. 2 is a block diagram showing a functional configuration of the power information collecting apparatus according to Embodiment 1 of the present invention.
- FIG. 3 is a block diagram showing a functional configuration of the power measuring apparatus according to Embodiment 1 of the present invention.
- FIG. 4 is a flowchart showing a flow of processing performed by the power information collection device according to Embodiment 1 of the present invention.
- FIG. 5 is a flowchart showing a flow of processing performed by the power measurement apparatus according to Embodiment 1 of the present invention.
- FIG. 1 is a diagram showing an overview of a power information collection system according to Embodiment 1 of the present invention.
- FIG. 2 is a block diagram showing a functional configuration of the power information collecting apparatus according to Embodiment 1 of the present invention.
- FIG. 3 is a block diagram showing a functional configuration of the power measuring apparatus according to Embodi
- FIG. 6 is an example of a sequence diagram illustrating a flow of information in the power information collection system according to Embodiment 1 of the present invention.
- FIG. 7 is an example of a sequence diagram showing a flow of information in the power information collection system according to Embodiment 1 of the present invention.
- FIG. 8 is a diagram showing another example of the outline of the power information collection system according to Embodiment 1 of the present invention.
- FIG. 9 is a block diagram showing a functional configuration of the power information collecting apparatus according to Embodiment 2 of the present invention.
- FIG. 10 is a graph showing the time transition of the total power consumption value.
- FIG. 11 is a flowchart showing a flow of processing performed by the power information collection device according to Embodiment 2 of the present invention.
- FIG. 11 is a flowchart showing a flow of processing performed by the power information collection device according to Embodiment 2 of the present invention.
- FIG. 12A is a sequence diagram showing an example of information flow in the power information collection system according to Embodiment 2 of the present invention.
- FIG. 12B is a sequence diagram showing another example of the information flow in the power information collection system according to Embodiment 2 of the present invention.
- FIG. 13 is a graph showing the time transition of the total power consumption value.
- FIG. 14 is a block diagram showing a functional configuration of the power information collecting apparatus according to Embodiment 3 of the present invention.
- FIG. 15 is a flowchart showing a flow of processing performed by the power information collecting apparatus according to Embodiment 3 of the present invention.
- FIG. 16 is a block diagram showing a functional configuration of the power measuring apparatus according to the fourth embodiment of the present invention.
- FIG. 17 is a flowchart showing a flow of processing performed by the power measuring apparatus according to Embodiment 4 of the present invention.
- FIG. 18 is a diagram illustrating an example of a hardware configuration of a computer.
- FIG. 19 is a diagram for explaining a problem to be solved by the invention.
- FIG. 1 is a diagram showing an overview of a power information collection system according to Embodiment 1 of the present invention.
- the power information collection system includes a power information collection device 11 and a power measurement device 12. Further, the power information collecting device 11 and the power measuring device 12 are connected via a wireless network or a wired network.
- the power information collection device 11 is a device that collects power information including power consumption values for each of the plurality of devices 13. Specifically, the power information collection device 11 is a device that collects power information in order to control a plurality of devices 13. The power information collection device 11 is attached to a distribution board that distributes the power supplied to the plurality of devices 13, for example.
- the power measuring device 12 measures the power consumption value of the connected device 13 and transmits power information including the measured power consumption value to the power information collecting device 11.
- the power measuring device 12 is connected to the device 13 via a serial interface such as a USB (Universal Serial Bus).
- the device 13 is a device that consumes power.
- the device 13 is a device such as a lighting fixture, an air conditioner, a television, a refrigerator-freezer, a microwave oven, or a PC (Personal Computer).
- the device 13 is preferably a device capable of transmitting and receiving information by wireless communication such as ZigBee or wireless LAN (Local Area Network) or wired communication such as Ethernet (registered trademark).
- the device 13 is preferably a so-called “digital home appliance” that can remotely control power ON / OFF, switching of various operation states, and the like.
- FIG. 2 is a block diagram showing a functional configuration of the power information collecting apparatus according to Embodiment 1 of the present invention.
- the power information collection device 11 includes a data holding unit 111, a change rate calculation unit 112, a communication unit 113, and a control unit 114.
- the data holding unit 111 holds the power information collected by the communication unit 113.
- the change rate calculation unit 112 reads the power information held in the data holding unit 111, and calculates the power change rate indicating the degree of increase in the power consumption value for each device 13 using the read power information. Specifically, the change rate calculation unit 112 calculates the power change rate P as shown in Expression (1) using the power information collected most recently among the power information held in the data holding unit 111. .
- W1 is a power consumption value measured at the first time.
- W1 is the power consumption value measured most recently.
- W2 is a power consumption value measured at a second time that is a predetermined time before the first time. T is a period from the second time to the first time.
- the communication unit 113 collects power information for each device 13. Specifically, the communication unit 113 receives the power information of the device 13 from each power measurement device 12 via a wireless network or a wired network.
- the power information includes the power consumption value of the device 13 and the time when the power consumption value is measured. Note that the power information may include an integrated value of the power consumption value of the device 13 or an operation state (power ON, power OFF, etc.) of the device 13.
- the time may be a relative time.
- the control unit 114 controls the communication unit 113 so that the device 13 having a larger power change rate calculated by the change rate calculating unit 112 has a higher power information collection frequency. That is, the control unit 114 determines the collection frequency of the power information for each device 13 so that the collection frequency of the device 13 with a larger increase degree of the power consumption value is higher. Then, the control unit 114 causes the communication unit 113 to collect power information from the power measurement device 12 connected to each device 13 according to the determined collection frequency for each device 13.
- control unit 114 transmits, for example, a power information request command for requesting transmission of power information to each power measurement device 12 according to the determined collection frequency for each device 13, thereby allowing the power of each device 13 to be transmitted.
- Collect information (polling method).
- control unit 114 collects power information of each device 13 by transmitting a time allocation command for assigning a time slot to each power measurement device 12 according to the determined collection frequency to each power measurement device 12. (TDMA (Time Division Multiple Access) method).
- TDMA Time Division Multiple Access
- FIG. 3 is a block diagram showing a functional configuration of the power measuring apparatus according to Embodiment 1 of the present invention.
- the power measurement device 12 includes a data holding unit 121, a power measurement unit 122, a communication unit 123, and a control unit 124.
- the data holding unit 121 holds power information including the power consumption value measured by the power measuring unit 122.
- the power measuring unit 122 measures the power consumption value of the connected device 13.
- the power measuring unit 122 may measure an integrated value of the power consumption values of the connected devices 13. Further, the power measurement unit 122 may acquire the operation status of the connected device 13.
- the communication unit 123 transmits power information to the power information collection device 11. Specifically, the communication unit 113 transmits the power information held in the data holding unit 121 to the power information collection device 11 via the wireless network or the wired network according to the collection frequency determined by the power information collection device 11. To do. In addition, the communication unit 123 receives various commands from the power information collection device 11. These various commands include commands related to the collection frequency of power information. Specifically, the various commands are, for example, power information request commands.
- the control unit 124 transmits the power information held in the data holding unit 121 via the communication unit 123 according to the command received by the communication unit 123 from the power information collection device 11.
- FIG. 4 is a flowchart showing a flow of processing performed by the power information collecting apparatus according to Embodiment 1 of the present invention.
- the communication unit 113 receives power information from the power measurement device 12 (S102). Subsequently, the data holding unit 111 holds the received power information (S104). Next, the change rate calculation unit 112 reads the power information held in the data holding unit 111, and calculates the power change rate for each device 13 using the read power information (S106).
- control unit 114 determines the collection frequency of the power information for each device 13 so that the collection frequency of the device 13 having a larger calculated power change rate is higher (S108). And the control part 114 transmits a power information request command to each power measuring device 12 via the communication part 113 according to the determined collection frequency (S110).
- the power information collection device 11 collects the power information of each device 13 at each time by repeatedly executing the processing from step S102 to step S110.
- FIG. 5 is a flowchart showing a flow of processing performed by the power measurement apparatus according to Embodiment 1 of the present invention.
- the power measuring unit 122 measures the power consumption value of the connected device 13 (S202). Specifically, the power measurement unit 122 measures the power consumption value of the connected device 13 at a predetermined time interval, for example. Note that the power measurement unit 122 may measure the power consumption value of the device 13 while dynamically changing the time interval according to the measured power consumption value.
- the data holding unit 121 holds power information including the measured power consumption value (S204). Subsequently, the control unit 124 determines whether to transmit power information to the power information collection device 11 (S206). For example, when transmitting power information by a polling method, the control unit 124 has received a power information request command from the power information collection device 11 and still transmits power information as a response to the received power information request command. If not, it is determined that the power information is transmitted to the power information collection device 11.
- the communication unit 123 transmits the power information held in the data holding unit 121 (S208). And the electric power measurement apparatus 12 repeats the process from step S202. On the other hand, when it is determined not to transmit the power information (No in S206), the power measurement device 12 repeats the processing from Step S202.
- the power measuring device 12 repeatedly transmits the power information to the power information collecting device 11 by repeatedly executing the processing from step S202 to step S208.
- FIG 6 and 7 are examples of sequence diagrams showing the flow of information in the power information collection system according to Embodiment 1 of the present invention.
- FIG. 6 is a sequence diagram when the power change rates of the first to fourth devices connected to the first to fourth power measuring devices 12a to 12d are substantially the same.
- FIG. 7 shows the second to fourth devices in which the power change rate of the first device connected to the first power measuring device 12a is connected to the second to fourth power measuring devices 12b to 12d. It is a sequence diagram when it is larger than the power change rate.
- the fact that the power change rates substantially match means that in addition to the power change rates being in agreement, the power change rates may be regarded as matching.
- FIG.6 and FIG.7 demonstrates the case where the power measuring device 12 is four units
- the power information collecting device 11 has the same frequency for each of the first to fourth power measuring devices 12a to 12d. To send a power information request command. As a result, the power information collection device 11 can receive power information from each power measurement device at the same frequency.
- the second to fourth power measurements are performed with respect to the first power measurement device 12a.
- the power information request command is transmitted more frequently than the devices 12b to 12d.
- the power information collecting device 11 can receive power information from the first power measuring device 12a at a frequency higher than that of the second to fourth power measuring devices 12b to 12d.
- the power information collection device 11 can collect power information at a frequency according to the power change rate of the device 13, the power information of the device 13 having a large influence on the total power consumption value. Can be collected efficiently with priority.
- the power information collection device 11 can make the power information collection frequency of a device having a large influence on the total power consumption value higher than the collection frequency of other devices. Therefore, the power information collection device 11 can efficiently collect power information within a range that does not exceed the capabilities of the power information collection device (such as power information processing capability or communication capability). Further, by using the power information collected in this way, it becomes easy to quickly grasp the change in the total power consumption value, and it is possible to suppress exceeding the maximum usable power value.
- the power information collection device 11 can collect power information according to the latest power change rate, it can efficiently collect power information according to the current situation.
- the collection frequency of the power information from the second to fourth power measurement devices is lowered to reduce the first power
- the frequency of collecting power information from the measuring device may be increased. Thereby, it is possible to efficiently collect power information of a device having a great influence on the total power consumption value without increasing the overall collection frequency.
- the power information collecting device 11 does not necessarily have to be attached to the distribution board.
- the power information collection device 11 may be attached to a controller that controls a plurality of devices 13.
- the power information collection device 11 may receive information on the power supplied from the distribution board from the power measurement device 12 attached to the distribution board.
- Modification 1 of Embodiment 1 As a first modification of the first embodiment, an example will be described in which the power information collection frequency is controlled using a power change rate different from that of the first embodiment.
- the power information collection device 11 controls the collection frequency of power information according to the maximum power change rate for each device 13.
- the change rate calculation unit 112 calculates the maximum power change rate using the power information held in the data holding unit 111.
- the maximum power change rate is the largest power change rate among the power change rates in a plurality of periods. That is, the maximum power change rate is the largest power change rate among a plurality of power change rates in different periods, which is calculated by the equation (1).
- the change rate calculation unit 112 reads the power information held in the data holding unit 111. Then, the change rate calculation unit 112 calculates the power change rate for a plurality of periods for each device 13 according to the equation (1) using the read power information. The change rate calculation unit 112 calculates the maximum power change rate among the power change rates calculated in this way as the maximum power change rate for each device 13.
- the change rate calculation unit 112 calculates the power change rate in the period related to the collected power information, and when the calculated power change rate is larger than the already held power change rate.
- the held power change rate may be updated to a newly calculated power change rate. Thereby, the change rate calculation unit 112 can acquire the maximum power change rate by referring to the held power change rate.
- the control unit 114 controls the communication unit 113 so that the device 13 having a larger maximum power change rate calculated by the change rate calculating unit 112 has a higher power information collection frequency.
- the power information collection device 11 can determine the power information collection frequency according to the maximum power change rate in each device 13, and thus is highly likely to greatly increase the total power consumption value.
- the power information of the device 13 can be efficiently collected.
- the power information collection device 11 controls the collection frequency of power information using the average power change rate for each device 13.
- the change rate calculation unit 112 calculates the average power change rate using the power information held in the data holding unit 111.
- the average power change rate is an average value of the power change rates in a plurality of periods.
- the average power change rate Pave is calculated by the equation (2).
- n is the number of power change rates P in each period calculated according to the equation (1).
- the change rate calculation unit 112 reads the power information held in the data holding unit 111. Then, the change rate calculation unit 112 calculates the power change rate of each period for each device 13 according to the equation (1) using the read power information. The change rate calculation unit 112 calculates the average value of the power change rates calculated in this way for each device 13 as the average power change rate.
- the control unit 114 controls the communication unit 113 so that the device 13 having a larger average power change rate calculated by the change rate calculating unit 112 has a higher power information collection frequency.
- the power information collecting apparatus 11 can collect power information at a frequency according to the averaged power change rate, so that it is possible to collect power information stably and efficiently. it can.
- the power information collection device 21 controls the communication unit 113 so that the power information collection frequency is higher for the device 13 having a larger power change rate. This is different from the power information collecting apparatus 11 according to the first embodiment.
- the power measurement apparatus according to the present embodiment is the same as the power measurement apparatus according to the first embodiment, and thus description and illustration thereof are omitted.
- FIG. 9 is a block diagram showing a functional configuration of the power information collecting apparatus according to Embodiment 2 of the present invention. 9, the same components as those in FIG. 2 are denoted by the same reference numerals, and description thereof is omitted.
- the power information collection device 21 includes a data holding unit 111, a change rate calculation unit 112, a communication unit 113, and a control unit 214.
- the control unit 214 determines whether or not the total power consumption value exceeds the first threshold value. Then, when the total power consumption value exceeds the first threshold value, the control unit 214 controls the communication unit 113 so that the device 13 having a larger power change rate has a higher power information collection frequency. That is, the control unit 214 increases the frequency of collecting power information for the device 13 having a larger power change rate only when the total power consumption value exceeds or exceeds the first threshold value.
- the communication unit 113 is controlled.
- the total power consumption value is the sum of the power consumed by the plurality of devices 13.
- the first threshold is the maximum available power indicating the upper limit of the total power consumption value that can be used as the product of the largest maximum power change rate among the maximum power change rates of the devices 13 and a predetermined period. The value is subtracted from the value.
- the maximum usable power value is, for example, the allowable power value of a breaker provided in a distribution board, the upper limit value of the supplied power determined by a contract with the power company, or the electricity charge by the contract with the power company It is a predetermined power value such as a power value when changing.
- FIG. 10 is a graph showing the time transition of the total power consumption value.
- the vertical axis indicates the power consumption value
- the horizontal axis indicates time.
- the first threshold value is a value obtained by subtracting the maximum power change amount Q at time ⁇ from the maximum usable power value. Since the total power consumption value exceeds the first threshold value at the time ⁇ , the control unit 214 controls the communication unit 113 so that the device 13 having a larger power change rate has a higher power information collection frequency. In other words, assuming that the total power consumption value changes at the maximum power change rate ⁇ , the total power consumption value is estimated to exceed the maximum usable power value after a predetermined period ⁇ has elapsed (time ⁇ ). When this is done, the control unit 214 controls the communication unit 113 so that the device 13 having a larger power change rate has a higher power information collection frequency. This is because, when the total power consumption value exceeds the first threshold value, there is a high possibility that the total power consumption value exceeds the maximum usable power value.
- the maximum power change amount Q is a product of the maximum power change rate ⁇ at time ⁇ and a predetermined period ⁇ .
- the maximum power change rate ⁇ is the largest maximum power change rate among the maximum power change rates of the devices 13.
- the predetermined period ⁇ is, for example, an arbitrary period such as 60 seconds or a period determined according to the polling interval.
- FIG. 11 is a flowchart showing a flow of processing performed by the power information collecting apparatus according to Embodiment 2 of the present invention.
- steps for performing the same processing as in FIG. 4 are denoted by the same reference numerals, and description thereof is omitted.
- the control unit 214 acquires the total power consumption value (S302). Specifically, for example, the control unit 214 obtains the total power consumption value by calculating the sum of the latest power consumption values of the devices 13 held in the data holding unit 111. Further, for example, the control unit 214 may acquire the total power consumption value by acquiring supply power from a power measurement device attached to the distribution board.
- the control unit 214 calculates a first threshold value (S304). Specifically, the control unit 214 subtracts, from the maximum usable power value, the first threshold value by subtracting the product of the largest maximum power change rate among the maximum power change rates of each device 13 and a predetermined period. Is calculated.
- the control unit 214 determines whether or not the total power consumption value exceeds the first threshold (S306).
- the power information collection device 21 executes the processing after Step S108.
- the power information collection device 21 executes the process of step S102.
- control unit 214 may control the communication unit 113 so as to receive the power information at a predetermined collection frequency.
- FIG. 12A is a sequence diagram showing an example of information flow in the power information collection system according to Embodiment 2 of the present invention. Specifically, FIG. 12 shows that the power change rates of the first and second devices connected to the first and second power measuring devices 12a and 12b are the third and fourth power measuring devices 12c and 12d. It is a sequence diagram when it is larger than the power change rate of the 3rd and 4th apparatus connected to.
- the power change rate of the first device and the power change rate of the second device are substantially the same, and the power change rate of the third device and the power change rate of the fourth device are It is almost coincident.
- the power information collection device 21 is the same for each of the first to fourth power measurement devices 12a to 12d regardless of the power change rate of each device.
- a power information request command is transmitted at a frequency.
- the power information collection device 21 performs the third and fourth operations on the first and second power measurement devices 12a and 12b.
- the power information request command is transmitted more frequently than the power measurement devices 12c and 12d.
- the power information collection device 21 does not necessarily need to transmit a power information request command to the third and fourth devices after the total power consumption value exceeds the first threshold value. For example, when the power information collection capability is not sufficient, the power information collection device 21 does not have to transmit the power information request command to the third and fourth devices as illustrated in FIG. 12B. Specifically, when the maximum power change rate of the third and fourth devices is smaller than the second threshold, the power information collection device 21 supplies power to the third and fourth power measurement devices 12c and 12d. The information request command need not be transmitted.
- the second threshold value for example, a value that has a constant ratio to the maximum usable power value may be used.
- the power information collection device 21 may have the total power consumption value exceeding the maximum usable power value. Whether it is high or not can be determined dynamically.
- the power information collection device 21 can efficiently collect power information of devices that have a large influence on the total power consumption value when the total power consumption value is likely to exceed the maximum usable power value. .
- the maximum usable power value dynamically varies according to the power that can be supplied by the power supply device that supplies power to the plurality of devices 13.
- the power supply device is, for example, a photovoltaic power conditioner, a fuel cell, or a storage battery installed in a building where the device 13 is used.
- the communication unit 113 included in the power information collection device 21 receives suppliable power information including the upper limit value of power that can be supplied by the power supply device.
- the communication unit 113 receives, for each power supply device, supplyable power information including power generated by a photovoltaic power generation panel or a fuel cell or a power value charged in a storage battery.
- the control part 214 calculates the sum total of the upper limit of the electric power which can be supplied received for every electric power supply apparatus as a maximum usable electric power value.
- the control unit 214 calculates the first threshold value using the maximum usable power value calculated in this way.
- the control part 214 controls the collection frequency of electric power information using the 1st threshold value calculated in this way.
- FIG. 13 is a graph showing the time transition of the total power consumption value.
- the vertical axis represents the power consumption value
- the horizontal axis represents time.
- the first threshold value is a value obtained by subtracting the maximum power change amount Q from the maximum usable power value at time ⁇ .
- the maximum usable power value at time ⁇ is the sum of the power values that can be supplied by the power supply device.
- the power information collection device 21 can dynamically change the first threshold value according to the change in the power value that can be supplied by the power supply device, and can effectively perform the power information. Can be collected.
- the maximum usable power value is the sum of the power values that can be supplied by the power supply device, but is determined by the sum of the power values that can be supplied by the power supply device and a contract with the power company. It may be a sum with the obtained power value. Further, the maximum usable power value may be a target value of the maximum usable power set in advance by the user.
- control unit 214 controls the communication unit 113 such that the collection frequency of suppliable power information increases as the change rate of the suppliable power value increases.
- the power information collecting device 21 can immediately reflect the change in the power value that can be supplied to the maximum usable power value.
- the power information collecting apparatus 31 is further characterized in that the operation state of the plurality of devices 13 is controlled using the collected power information.
- FIG. 14 is a block diagram showing a functional configuration of the power information collecting apparatus according to Embodiment 3 of the present invention. 14, the same components as those in FIG. 2 are denoted by the same reference numerals, and description thereof is omitted.
- the power information collection device 31 includes a data holding unit 111, a change rate calculation unit 112, a communication unit 113, and a control unit 314.
- the control unit 314 further controls the plurality of devices 13 using the power information received by the communication unit 113 in addition to the processing performed by the control unit 114 of the first embodiment. Specifically, for example, when the total power consumption value exceeds a predetermined value, the control unit 314 transmits a power control command that requests suppression of the power consumption value to the device 13 having a low priority. And the apparatus 13 which received the power control command suppresses power consumption by switching various operation states.
- the device 13 is preferably a so-called “digital home appliance” that can remotely control power ON / OFF, switching of various operation states, and the like.
- FIG. 15 is a flowchart showing a flow of processing performed by the power information collecting apparatus according to Embodiment 3 of the present invention.
- steps that perform the same processing as in FIG. 4 are denoted by the same reference numerals, and description thereof is omitted.
- the control unit 314 determines whether or not power control is necessary (S402). Specifically, the control unit 314 determines whether it is necessary to suppress the power consumption value of at least one of the plurality of devices 13.
- control unit 314 determines whether or not power control is necessary, for example, based on whether or not the total power consumption value exceeds a predetermined value.
- the predetermined value may be a value obtained by multiplying the maximum usable power value by a coefficient less than 1.
- the power information collecting apparatus 31 repeats the processing from Step S102 again.
- the control unit 314 sends a power control command that is a command related to power control to at least one of the plurality of devices 13 via the communication unit 113. Is transmitted (S404). Specifically, for example, the control unit 314 transmits a power control command for reducing the power consumption value to the device 13 having a predetermined low priority. Then, the power information collection device 31 repeats the processing from step S102 again.
- the power information collection device 31 can control the device 13 using the power information collected at a frequency corresponding to the power change rate, the total power consumption value is the maximum usable power. The possibility of exceeding the value can be reduced. That is, since the power information collection device 31 can use the power information collected efficiently, the device 13 can be controlled while quickly following the current situation.
- the power information collecting apparatus 31 can control each device 13 using actual power consumption collected instead of the rated power, the available power can also be used effectively.
- the power information collection device 31 may control the device 13 via a power measurement device connected to the device 13 instead of directly controlling the device 13.
- the communication unit 113 has a function of communicating with the device 13 in addition to a function of communicating with the power measurement device.
- the communication unit 113 communicates with the device 13 in addition to the function of communicating with the power measurement device. It is not necessary to have a function.
- the power measurement device connected to the device 13 includes a device control unit, receives a power control command from the power information collection device 31, and notifies the connected device 13 of the control command.
- FIG. 16 is a block diagram showing a functional configuration of the power measuring apparatus according to the fourth embodiment of the present invention.
- the same components as those in FIG. 3 are denoted by the same reference numerals, and description thereof is omitted.
- the power measurement device 42 includes a data holding unit 121, a power measurement unit 122, a communication unit 123, a control unit 424, and a change rate calculation unit 425.
- the control unit 424 controls the communication unit 123 so that the transmission rate of the power information increases as the power change rate calculated by the change rate calculation unit 425 increases.
- the change rate calculation unit 425 reads the power information held in the data holding unit 121, and calculates the power change rate, which is the change rate of the power consumption value, using the read power information. Specifically, the change rate calculation unit 425 calculates the power change rate P shown in Expression (1) using the power information measured most recently among the power information held in the data holding unit 121.
- change rate calculation unit 425 may calculate the maximum power change rate as the power change rate. Further, the change rate calculation unit 425 may calculate the average power change rate as the power change rate.
- FIG. 17 is a flowchart showing a flow of processing performed by the power measurement device according to the fourth embodiment of the present invention. Note that, in FIG. 17, steps for performing the same processing as in FIG.
- the change rate calculation unit 425 reads the power information held in the data holding unit 121, and uses the read power information to calculate a power change rate that is a change rate of the power consumption value. (S502). Subsequently, the control unit 424 determines the transmission frequency of the power information such that the transmission frequency increases as the power change rate calculated by the change rate calculation unit 425 increases (S504). Then, the control unit 424 transmits power information to the power information collecting apparatus via the communication unit 123 according to the determined transmission frequency (S506).
- the power measuring device 42 transmits the measured power information to the power information collecting device or the like by repeatedly executing the processing from step S202 to step S506.
- the power measurement device 42 can change the transmission frequency of the power information according to the power change rate, that is, according to the magnitude of the influence on the total power consumption value. Therefore, the power information collecting device to which the power information is transmitted from the power measuring device can efficiently collect the power information of the device 13 having a large influence on the total power consumption value with priority.
- the power information collection device and the power measurement device according to the present invention have been described based on the embodiments.
- the present invention is not limited to these embodiments.
- various modifications conceived by those skilled in the art have been made in the present embodiment, or forms constructed by combining components in different embodiments or modifications thereof are also within the scope of the present invention. Contained within.
- the power information includes information indicating the power consumption value, but may include a power change rate.
- the power measurement device may include a change rate calculation unit, and the power information collection device may not include the change rate calculation unit.
- the power change rate indicates the degree of increase in the power consumption value, but preferably indicates the degree of increase or decrease in the power consumption value.
- the power change rate P is preferably calculated as shown in the following formula (3).
- the power information collecting apparatus can also increase the frequency of collecting power information of devices whose power consumption value is greatly reduced. Therefore, the power information collecting apparatus can quickly grasp the change in the total power consumption value.
- the power information collection device can perform control according to a change in the total power consumption value. For example, when an operation of a certain device is stopped in order to suppress an increase in the total power consumption value, the power information collection device can quickly grasp a change in the power consumption value of the device. Therefore, the power information collecting apparatus can appropriately determine whether or not other devices need to be stopped.
- the present invention can also be realized as a power information collection method for executing processing performed by characteristic components of such a power information collection device.
- the power information collecting method can be realized as a program for causing a computer as shown in FIG.
- Such a program can be distributed via a recording medium such as a CD-ROM or a transmission medium such as the Internet.
- FIG. 18 is a diagram illustrating an example of a hardware configuration of a computer.
- a program for causing a computer to execute the power information collecting method is stored in, for example, a CD-ROM 515 that is a computer-readable medium, and is read out through the CD-ROM device 514. Further, for example, a program for causing a computer to execute the power information collecting method is transmitted via a wired or wireless network, broadcasting, or the like.
- the computer 500 includes a CPU (Central Processing Unit) 501, a ROM (Read Only Memory) 502, a RAM (Random Access Memory) 503, a hard disk 504, a communication interface 505, and the like.
- a CPU Central Processing Unit
- ROM Read Only Memory
- RAM Random Access Memory
- the CPU 501 executes a program read via the CD-ROM device 514 or a program received via the communication interface 505. Specifically, the CPU 501 expands a program read via the CD-ROM device 514 or a program received via the communication interface 505 in the RAM 503. The CPU 501 executes each coded instruction in the program expanded in the RAM 503.
- the ROM 502 is a read-only memory that stores programs and data necessary for the operation of the computer 500.
- the RAM 503 is used as a work area when the CPU 501 executes a program. Specifically, the RAM 503 temporarily stores data such as parameters at the time of program execution, for example.
- the hard disk 504 stores programs, data, and the like.
- the communication interface 505 communicates with other computers via a network.
- the bus 506 connects the CPU 501, ROM 502, RAM 503, hard disk 504, communication interface 505, display 511, keyboard 512, mouse 513 and CD-ROM device 514 to one another.
- the present invention can also be realized as a semiconductor integrated circuit (LSI: Large Scale Integration) that realizes part or all of the functions of such a power information collecting device or power measuring device.
- LSI Large Scale Integration
- the present invention can be realized as an integrated circuit including some or all of the components shown in FIG. 2, FIG. 9, FIG. 14, or FIG.
- the integrated circuit may be individually made into one chip, or may be made into one chip so as to include a part or all of them.
- circuits are not limited to LSI, and may be realized by a dedicated circuit or a general-purpose processor.
- An FPGA Field Programmable Gate Array
- reconfigurable processor that can reconfigure the connection and setting of circuit cells inside the LSI may be used.
- It can be used as a power information collection device that collects power information including power consumption values for each of a plurality of devices, or a device controller equipped with the power information collection device.
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Abstract
Description
図1は、本発明の実施の形態1に係る電力情報収集システムの概要を示す図である。電力情報収集システムは、電力情報収集装置11と、電力測定装置12とを備える。また、電力情報収集装置11と電力測定装置12とは、無線ネットワーク又は有線ネットワークを介して接続されている。
実施の形態1の変形例1として、実施の形態1とは異なる電力変化率を用いて電力情報の収集頻度を制御する一例を説明する。
実施の形態1の変形例2として、実施の形態1とは異なる電力変化率を用いて収集頻度を制御する他の一例を説明する。
次に、本発明の実施の形態2について、図面を参照しながら説明する。
実施の形態2の変形例として、複数の機器13に電力を供給する電力供給機器が供給可能な電力に応じて、最大使用可能電力値が動的に変動する場合について説明する。なお、電力供給機器とは、例えば、機器13が使用される建物に設置された太陽光発電用パワーコンディショナー、燃料電池、又は蓄電池などである。
次に、本発明の実施の形態3について、図面を参照しながら説明する。
次に、本発明の実施の形態4について、図面を参照しながら説明する。
12、12a、12b、12c、12d、42 電力測定装置
13 機器
111、121 データ保持部
112、425 変化率算出部
113、123 通信部
114、124、214、314、424 制御部
122 電力測定部
Claims (22)
- 複数の機器のそれぞれについて消費電力値を含む電力情報を収集する電力情報収集装置であって、
前記機器ごとに電力情報を収集する通信部と、
前記通信部によって収集された電力情報を保持するデータ保持部と、
前記データ保持部に保持された電力情報を用いて、消費電力値の増減度合いを示す電力変化率を前記機器ごとに算出する変化率算出部と、
前記変化率算出部によって算出された電力変化率が大きい機器ほど電力情報の収集頻度が高くなるように前記通信部を制御する制御部とを備える
電力情報収集装置。 - 前記変化率算出部は、前記データ保持部に保持された電力情報のうち、直近に収集された電力情報を用いて、前記電力変化率を前記機器ごとに算出する
請求項1に記載の電力情報収集装置。 - 前記変化率算出部は、複数の期間の電力変化率のうち最も大きい電力変化率である最大電力変化率を、前記電力変化率として前記機器ごとに算出する
請求項1に記載の電力情報収集装置。 - 前記変化率算出部は、複数の期間の電力変化率の平均値である平均電力変化率を、前記電力変化率として前記機器ごとに算出する
請求項1に記載の電力情報収集装置。 - 前記制御部は、前記複数の機器の消費電力値の総和である総消費電力値が第1閾値を超えるか否かを判定し、総消費電力値が第1閾値を超える場合に、電力変化率が大きい機器ほど前記通信部による電力情報の収集頻度が高くなるように前記通信部を制御する
請求項1~4のいずれか1項に記載の電力情報収集装置。 - 前記第1閾値は、前記複数の機器の最大電力変化率のうち最も大きい最大電力変化率と予め定められた期間との積を、使用可能な総消費電力値の上限値を示す最大使用可能電力値から減算した値であり、
前記最大電力変化率は、複数の期間の電力変化率のうち最も大きい電力変化率である
請求項5に記載の電力情報収集装置。 - 前記制御部は、総消費電力値が第1閾値を超える場合に、最大電力変化率が第2閾値より小さい機器の電力情報を収集しないように前記通信部を制御する
請求項5又は6に記載の電力情報収集装置。 - 前記最大使用可能電力値は、電力会社との契約により定められた電力値である
請求項5~7のいずれか1項に記載の電力情報収集装置。 - 前記最大使用可能電力値は、前記複数の機器に電力を供給する電力供給機器が供給可能な電力値である
請求項5~7のいずれか1項に記載の電力情報収集装置。 - 前記最大使用可能電力値は、電力会社との契約により定められた電力値と、前記複数の機器に電力を供給する電力供給機器が供給可能な電力値との総和である
請求項5~7のいずれか1項に記載の電力情報収集装置。 - 前記最大使用可能電力値は、ユーザによって予め設定された最大使用電力の目標値である
請求項5~7のいずれか1項に記載の電力情報収集装置。 - 前記通信部は、前記電力供給機器において測定された供給可能な電力値を含む供給可能電力情報を受信し、
前記制御部は、さらに、前記通信部によって受信された供給可能電力情報を用いて前記最大使用可能電力値を算出し、算出した前記最大使用可能電力値から得られる前記第1閾値に従って前記通信部を制御する
請求項9又は10に記載の電力情報収集装置。 - 前記制御部は、さらに、供給可能な電力値の変化率が大きいほど供給可能電力情報の収集頻度が高くなるように前記通信部を制御する
請求項12に記載の電力情報収集装置。 - 前記制御部は、さらに、前記通信部によって収集された電力情報を用いて、前記複数の機器を制御する
請求項1~12のいずれか1項に記載の電力情報収集装置。 - 少なくとも1つの機器に接続され、接続された機器の消費電力値を含む電力情報を電力情報収集装置へ送信する電力測定装置であって、
前記機器の消費電力値を測定する電力測定部と、
前記電力測定部によって測定された消費電力値を含む電力情報を保持するデータ保持部と、
前記データ保持部に保持された電力情報を用いて、消費電力値の増減度合いを示す電力変化率を算出する変化率算出部と、
前記データ保持部に保持された電力情報を電力情報収集装置へ送信する通信部と、
前記変化率算出部によって算出された電力変化率が大きいほど電力情報の送信頻度が高くなるように、前記通信部を制御する制御部とを備える
電力測定装置。 - 前記変化率算出部は、前記データ保持部に保持された電力情報のうち、直近に測定された消費電力値を示す電力情報を用いて、前記電力変化率を算出する
請求項15に記載の電力測定装置。 - 前記変化率算出部は、複数の期間の電力変化率のうち最も大きい電力変化率である最大電力変化率を、前記電力変化率として機器ごとに算出する
請求項15に記載の電力測定装置。 - 前記変化率算出部は、複数の期間の電力変化率の平均値である平均電力変化率を、前記電力変化率として機器ごとに算出する
請求項15に記載の電力測定装置。 - 複数の機器のそれぞれについて消費電力値を含む電力情報を収集する電力情報収集装置と、少なくとも1つの前記機器に接続され、接続された前記機器の電力情報を電力情報収集装置へ送信する電力測定装置とを備える電力情報収集システムであって、
前記電力情報収集装置は、
前記機器ごとに電力情報を収集する第1通信部と、
前記第1通信部によって収集された電力情報を保持する第1データ保持部と、
前記第1データ保持部に保持された電力情報を用いて、消費電力値の増減度合いを示す電力変化率を前記機器ごとに算出する変化率算出部と、
前記変化率算出部によって算出された電力変化率が大きい機器ほど電力情報の収集頻度が高くなるように前記第1通信部を制御する制御部とを備え、
前記電力測定装置は、
接続された機器の消費電力値を測定する第2電力測定部と、
前記電力測定部によって測定された消費電力値を含む電力情報を保持する第2データ保持部と、
前記第2データ保持部に保持された電力情報を前記電力情報収集装置へ送信する第2通信部とを備える
電力情報収集システム。 - 複数の機器のそれぞれについて消費電力値を含む電力情報を収集する集積回路であって、
前記機器ごとに電力情報を収集する通信部と、
前記通信部によって収集された電力情報を保持するデータ保持部と、
前記データ保持部に保持された電力情報を用いて、消費電力値の増減度合いを示す電力変化率を前記機器ごとに算出する変化率算出部と、
前記変化率算出部によって算出された電力変化率が大きい機器ほど電力情報の収集頻度が高くなるように前記通信部を制御する制御部とを備える
集積回路。 - 複数の機器のそれぞれについて消費電力値を含む電力情報を収集する電力情報収集方法であって、
前記機器ごとに電力情報を収集する通信ステップと、
前記通信ステップにおいて収集された電力情報を保持するデータ保持ステップと、
前記データ保持部に保持された電力情報を用いて、消費電力値の増減度合いを示す電力変化率を前記機器ごとに算出する変化率算出ステップと、
前記変化率算出ステップにおいて算出された電力変化率が大きい機器ほど前記通信ステップにおける電力情報の収集頻度が高くなるように前記通信部を制御する制御ステップとを含む
電力情報収集方法。 - 請求項21に記載の電力情報収集方法をコンピュータに実行させるためのプログラム。
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US13/258,245 US20120022711A1 (en) | 2009-12-10 | 2010-12-06 | Power information collecting apparatus, power measuring apparatus, power information collecting system, and power information collecting method |
CN2010800072781A CN102317796A (zh) | 2009-12-10 | 2010-12-06 | 功率信息收集装置、功率测定装置、功率信息收集系统及功率信息收集方法 |
JP2011527916A JP5760194B2 (ja) | 2009-12-10 | 2010-12-06 | 電力情報収集装置、電力測定装置、電力情報収集システム、及び電力情報収集方法 |
EP10835688.2A EP2511715B1 (en) | 2009-12-10 | 2010-12-06 | Power information collection apparatus, power measurement apparatus, power information collection system, and power information collection method |
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EP2511715A1 (en) | 2012-10-17 |
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JPWO2011070762A1 (ja) | 2013-04-22 |
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