WO2011033350A1 - 配電システム - Google Patents
配電システム Download PDFInfo
- Publication number
- WO2011033350A1 WO2011033350A1 PCT/IB2010/002120 IB2010002120W WO2011033350A1 WO 2011033350 A1 WO2011033350 A1 WO 2011033350A1 IB 2010002120 W IB2010002120 W IB 2010002120W WO 2011033350 A1 WO2011033350 A1 WO 2011033350A1
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- WO
- WIPO (PCT)
- Prior art keywords
- power
- power supply
- secondary battery
- supply source
- devices
- Prior art date
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/14—Balancing the load in a network
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/46—Accumulators structurally combined with charging apparatus
- H01M10/465—Accumulators structurally combined with charging apparatus with solar battery as charging system
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a power distribution system.
- a DC power supply source such as a solar battery that generates power by daylight sunlight, a secondary battery that is charged by a distributed power source such as a commercial power source or a solar cell, and the like.
- a power distribution system that operates devices in the house in combination with a power source (see, for example, Patent Document 1).
- Patent Document 1 Japanese Unexamined Patent Publication No. 2 0 0 9-1 7 8 0 2 5
- a secondary battery charged with midnight power from a commercial power source or surplus power from a distributed power source such as a solar cell as a power supply source for equipment. is there.
- a rechargeable battery at low cost using midnight power with a low unit price of commercial power supply or the power generated by a solar battery, and operating the equipment using the rechargeable battery power, Electricity charges can be reduced. In the daytime, the electricity bill can be further reduced by operating the equipment using a combination of secondary and solar batteries.
- the remaining capacity of the secondary battery and the amount of power generated by the solar battery fluctuate, and depending on the power consumption of the equipment, it is impossible to operate with only the DC power supply source.
- it was necessary to operate the equipment using a commercial power supply and when the unit price of the commercial power supply was high, such as during the daytime, the cost was high and it was not economical.
- the home user cannot determine the device that can operate with the current remaining capacity of the DC power supply source, and it is difficult to operate the device efficiently using the power of the DC power supply source.
- the present invention has been made in view of the above reasons, and provides a power distribution system that can efficiently and economically use the power of a DC power supply source when a device is operating.
- a DC power supply source for selecting one or more devices that can operate with a power allowable amount of the DC power supply source, and a selection result of the device selection means
- a power distribution system comprising display means for displaying.
- the power distribution system includes: a power supply unit that supplies power to a plurality of devices using the power supplied from the DC power supply source; and a power allowable amount detection unit that detects a power amount that can be supplied by the DC power supply source.
- Power information storage means for storing information on power consumption of each device, wherein the DC power supply source includes at least one of a secondary battery and a solar battery, and the device selection means. Can select one or a plurality of devices that can operate with the allowable power amount of the DC power supply source based on the allowable power amount of the DC power supply source and the power consumption information of each device.
- the user refers to the selection result of the equipment that can be operated by the DC power supply source and determines the equipment to be used, so that the power supplied from the commercial power source can be used as little as possible.
- the power from the DC power supply source can be used effectively, and the power from the DC power supply source can be used efficiently and economically when the equipment is operating.
- the DC power supply source is constituted only by a secondary battery
- the allowable power detection means detects the remaining capacity of the secondary battery
- the device selection means determines the remaining capacity of the secondary battery and each device. Based on the power consumption information, one or more devices that can operate with the remaining capacity of the secondary battery can be selected.
- the user refers to the selection result of the device that can operate with the remaining capacity of the secondary battery, and determines the device to be used, so that the power supplied from the commercial power source is used as little as possible.
- the secondary battery charging power can be used effectively, and the secondary battery charging power can be used efficiently and economically during device operation.
- the DC power supply source is constituted by a secondary battery and a solar battery
- the remaining capacity of the secondary battery and the generated power of the solar battery are detected by the allowable power detection means
- the device selection means is Select one or more devices that can operate with the remaining capacity of the secondary battery and the generated power of the solar battery based on the information on the remaining capacity of the secondary battery and the generated power of the solar battery and the power consumption of each device. Also good.
- the user refers to the selection result of the equipment that can operate with the remaining capacity of the secondary battery and the generated power of the solar battery, and determines the equipment to be used, thereby supplying power from the commercial power source. It is possible to effectively use the charging power of the secondary battery and the generated power of the solar battery without using as much electricity as possible, and efficiently use the charging power of the secondary battery and the generated power of the solar battery during device operation. And can be used economically.
- the device selection means can also select a device capable of a single operation with the allowable power amount of the DC power supply source.
- the user refers to the selection result of the device that can operate with the DC power supply source, determines whether the device can be used with the DC power supply source, and determines the device to be used. Can be determined.
- the display unit may display the devices selected by the device selection unit in descending order of power consumption.
- the user can easily recognize that the device at the top of the list is a device that can be efficiently used by the DC power supply source.
- the user can further include an operation unit that designates a plurality of devices, and the device selection unit operates from a plurality of devices designated by the operation unit with a power allowable amount of a DC power supply source. Possible device combinations can also be selected. According to such a configuration, the user does not need to consider the combination of devices to be used, and the usability is improved by referring to the selection result of the combination of devices operable with the DC power supply source.
- the device selection means may select all combinations of devices that can operate with the allowable power amount of the DC power supply source.
- the user has more options when determining the device to be used by referring to all combinations of devices that can be operated by the DC power supply source.
- the device selection means can also select a combination that maximizes the total power consumption of the combined devices among combinations of devices that can operate with a DC power supply source.
- the content that proposes that the device selection means operate using the midnight power of the commercial power supply for devices that were not selected as devices that can operate with the allowable power of the DC power supply source was created.
- the advice on using the device that has not been selected is also displayed, which is more convenient for the user.
- the information on the power consumption of each device stored in the power information storage means may be information generated based on a history of power consumed by each device during operation.
- the power information storage means stores the power consumption information calculated based on the actual operation of the equipment, and the accuracy of equipment selection by the equipment selection means is improved.
- FIG. 1 is a diagram illustrating a configuration of a power distribution system according to a first embodiment.
- FIG. 2 is a diagram showing an operation flowchart of the above.
- FIG. 3 is a diagram showing a device table same as above.
- FIG. 4 is a diagram showing a list display as described above.
- FIG. 5 is a diagram showing another list display as above.
- FIG. 6 is a diagram showing an operation flowchart of the second embodiment.
- Fig. 7 is a diagram showing a list of scheduled use devices.
- FIG. 8 is a diagram showing a list display as above.
- FIG. 9 is a diagram illustrating a configuration of a power distribution system according to a third embodiment.
- BEST MODE FOR CARRYING OUT THE INVENTION will be described in more detail with reference to the accompanying drawings, which form a part of this specification. Parts that are the same or similar throughout the drawings are given the same reference numerals, and descriptions thereof are omitted.
- the power distribution system of the present embodiment is mainly used in a house, and as shown in FIG. 1, an AC distribution board 1 to which an AC power supply path W a that supplies power to an AC device La driven by AC power is connected. And a DC distribution board 2 to which a DC power supply path W d for supplying power to a DC device L d driven by DC power is connected.
- a commercial power source AC is used as the AC power supply source, and at least one of the solar battery 3 and the secondary battery 5 is used as the DC power supply source.
- the AC device L a and the DC device L d are referred to as device L when they are not distinguished.
- the AC distribution board 1 to which the AC power supply path W a is connected is supplied with AC power from a commercial power supply AC and a solar cell 3 that is a distributed power supply via a power conditioner 4.
- a branch breaker, switch, etc. are built into the panel, and AC power is supplied to the AC power supply path W a and AC connection path W 1 branched into multiple systems on the load side of the branch breaker.
- the power conditioner 4 has a function of converting the DC power generated by the solar cell 3 into AC power and adjusting the output frequency and output voltage so that it can be connected to the commercial power supply AC. is doing.
- the DC distribution board 2 to which the DC power supply path W d is connected is supplied with AC power from the AC distribution board 1 via the AC connection path W 1 and converts the AC power into DC power of a desired voltage.
- a converter 2a is provided.
- the converter 2 a is an AC-DC converter, and the output of the converter 2 a is supplied to a plurality of direct current feed paths WL d via a plurality of circuit protectors, switches, etc. (not shown) built in the panel.
- the DC distribution board 2 has a built-in charger / discharger 2 b that is connected between the output of the converter 2 a and the secondary battery 5 to charge and discharge the secondary battery 5.
- the secondary battery 5 is charged with surplus power from the DC power supplied from the converter 2a to the DC power supply path Wd.
- the output voltage of the secondary battery 5 is adjusted by the charger / discharger 2 b and supplied to the DC power supply path W d together with the output of the comparator 2 a.
- Inverter 6 is a DC-AC converter that has the function of adjusting the output frequency and output voltage so that it can be connected to the commercial power supply AC.
- Y converts DC power to AC power, AC power is supplied to AC power supply line W a through the branch breaker in distribution board 1.
- AC power distribution board 1 has AC power to DC distribution board 2 This AC power can be converted to DC power by the converter 2a, and DC power can be supplied to the DC power supply line Wd. Conversely, DC power can be supplied from the DC distribution board 2 to the AC distribution board 1, and this DC power is converted into AC power by the inverter 6 and AC power supply path W a It is also possible to supply AC power.
- the commercial power source AC is the AC power supply source
- the solar cell 3 and the secondary battery 5 are the DC power supply source
- the AC distribution board 1 has the power supplied from each power supply source. Is used to configure AC power supply means for supplying AC power from the AC power supply path W a to a plurality of AC devices La, and the DC distribution board 2 uses the power supplied from each power supply source. It constitutes a DC power supply means that supplies DC power from Wd to multiple DC devices Ld.
- the control device 7 performs distribution control (distribution control that varies the output ratio from each power supply source) that switches the main power supply source according to the state of each power supply source.
- Control device 7 consists of commercial power supply AC, solar battery 3 power generation, secondary battery 5 remaining capacity, AC distribution board 1 AC power supplied to AC power supply path W a, DC distribution The DC power supplied from panel 2 to DC power supply line W d is monitored. Based on this monitoring result, the converter 2a, the charger / discharger 2b, the inverter 6, the switches housed in the AC distribution board 1 and the DC distribution board 2 are controlled, and the AC distribution Controls power transfer between switchboard 1 and DC distribution board 2.
- the main power supply source is not only the one that supplies power to a certain power supply path, but also the power supply to the power supply path is dominant compared to other power supply sources. Including things.
- the control device 7 performs power distribution control so as to supply power to each device L using only the charging power of the secondary battery 5.
- the secondary battery 5 depends on the power generated by the solar cell 3 in the daytime, or the power supplied from the commercial power supply AC (midnight power) in the time zone where the unit price is cheap (for example, the time zone from 22:00 to 7:00). Charged through converter 2a and charger / discharger 2b. Then, the control device 7 uses only the charge power of the limited rechargeable battery 5 to each device L in the time zone where the unit price of the commercial power source AC is high (for example, the time zone from 7:00 to 22:00). Power distribution is controlled to supply power.
- the DC device L d on the DC power supply path W d operates with the charging power of the secondary battery 5, and the AC device La on the AC power supply path W a is a secondary supplied through the inverter 6. Operates with battery 5 charging power.
- the secondary battery 5 becomes the main power supply source, the power supply from the commercial power supply AC becomes zero, and the total generated power of the solar battery 3 is used to charge the secondary battery 5. .
- the control device 7 includes a remaining capacity detection unit 7a (allowable power detection means), a power information storage unit 7b, a device selection unit 7c, a list creation unit 7d, and an operation unit 7e.
- the remaining capacity of the secondary battery 5 DC power
- the remaining capacity of the secondary battery 5 Provide a list of equipment L that can be used with the power capacity of the source.
- the remaining capacity detection unit 7 a detects the remaining capacity (W h) of the secondary battery 5 (S 2).
- the power information storage unit 7b stores information on each power consumption of the device L. As shown in FIG. 3, the power consumption information includes the device name, power consumption (W), and usage time ( Min) and the device table TB corresponding to the electric energy (W h).
- power consumption (W), usage time (minutes), and electric energy (W h) are values in standard usage.
- the device selection unit 7 c refers to the device table TB of the power information storage unit 7 b (S 3), and uses the remaining capacity of the secondary battery 5 for the power consumption of each device L in the device table TB. Compared to the amount, device L, which has a power consumption equal to or less than the remaining capacity of secondary battery 5, is selected from device table TB as a usable device (S4). In the device selection process in step S4, each device L in the device table TB is classified as an AC device La or a DC device Ld, whereby the power consumption of the AC device La is determined as a secondary battery.
- the inverter 6 can also take into account the conversion efficiency when the charging power of the secondary battery 5 is converted from DC to AC, and the selection result of the equipment is more accurate.
- the list creation unit 7 d creates a usable device list that presents the device selected by the device selection unit 7 c (S 5), and further displays a device L that is not selected by the device selection unit 7 c. Create a list of possible devices (S 6). Then, the list creation unit 7d provides the created usable device list and unusable device list in the vicinity of the control device 7 or integrally with the control device 7 together with information on the remaining capacity of the secondary battery 5. Output to display device 8 (S 7).
- the display device 8 associates the current remaining capacity X 1 of the secondary battery 5 with the name of the device that can be used with the current remaining capacity of the secondary battery 5 and the power consumption.
- the available device list X 2 and the unusable device list X 3 that associates the name of the device that cannot be used with the current remaining capacity of the secondary battery 5 and the power consumption are displayed.
- the user refers to the usable device list X 2 to determine whether or not the remaining capacity of the secondary battery 5 can be used for each device, and determines the device to be used.
- the usable device list X2 each device L is displayed in descending order of power consumption, and the user places the device located above the list in the remaining capacity of the current secondary battery 5. It can be easily recognized as a device that can be used efficiently.
- the list creation unit 7d creates information that suggests that the device L, which is included in the unusable device list X3, is operated using the midnight power of the commercial power source AC with a low unit price. Then, it may be output to the display device 8, and the proposed content X4 is displayed in the vicinity of the unusable device list X3 as shown in FIG.
- control device 7 is provided with a means for connecting to a network such as the Internet, and obtains weather forecast information from a server on the Internet, and the list creation unit 7d cannot be used.
- a network such as the Internet
- the list creation unit 7d cannot be used.
- information suggesting that it be used tomorrow when the weather forecast is clear may be created and output to the display device 8, as shown in Figure 5.
- the proposed content X 5 is displayed in the vicinity of the unusable device list X 3.
- advice on using the devices included in the unusable device list X 3 is also displayed, which is more convenient for the user.
- control device 7 performs distribution control to supply power to each device using only the charging power of the secondary battery 5 at the time of a power failure of the commercial power supply AC
- display device 8 is the same as the current secondary battery as described above.
- the remaining capacity X 1 of 5, the usable device list X 2 and the unusable device list X 3 are displayed. Therefore, it is possible to effectively use the charging power of the secondary battery 5 even during a power failure.
- the power distribution control performed by the control device 7 is not limited to the mode in which only the charging power of the secondary battery 5 is used to supply power to each device as described above, and the commercial power source AC is the main power supply source. There is a mode to supply power to L, a mode to supply power to each device using commercial power supply AC, solar cell 3 and secondary battery 5 in combination, depending on the state and time of each power supply source, etc. It can be switched appropriately.
- the power distribution system of the present embodiment is shown in FIG. 1 as in the first embodiment, and the same components are denoted by the same reference numerals and the description thereof is omitted.
- the control device 7 uses only the charge power of the rechargeable secondary battery 5 as much as possible to each device L in the time zone where the unit price of commercial power supply AC is high (for example, the time zone from 7:00 to 22:00).
- Equipment that can be used with the current remaining capacity of the secondary battery 5 (allowable power of the DC power supply source) for the user by performing distribution control to supply power and performing the operations shown in the flowchart of Fig. 6. Create a list that presents a combination of the two.
- the display device 8 displays a list of devices to be used X 10 in which device names, power consumption amounts, and check boxes are associated with each other, and the user wants to use one or more devices L A check mark is put in the check box corresponding to, the device to be used is designated, and the designated result is output to the control device 7 (S 1 2).
- the remaining capacity detection unit 7 a detects the remaining capacity (W h) of the secondary battery 5 (S 1 3).
- the power information storage unit 7 b stores information on the power consumption of each device. As shown in FIG. 3, the power consumption information includes the device name, power consumption (W), and usage time ( Min) and power table (W h). Here, power consumption (W), usage time (minutes), and electric energy (W h) are values in standard usage.
- the device selector 7 c derives all the combination patterns of the devices to be used, Referring to the device table TB in the power information storage unit 7b (S1 4), the remaining capacity of the secondary battery 5 is calculated as the power consumption for each combination of devices to be used (the power consumption of the combined devices). Compare the total) and extract the combination of devices whose power consumption is less than the remaining capacity of the secondary battery 5, and select the combination with the largest power consumption from the extracted combinations (S 1 Five ). For example, if the remaining capacity of the secondary battery 5 is 1 OO OW h, and if you select 5 devices: dishwasher, rice cooker, trouser press, dryer, and mobile phone charger, There are 3 1 patterns in which 1 to 5 devices are extracted and combined from the devices (the combination pattern of 5 devices).
- the dishwasher 9 0 OW h
- spur presser 7 5 as the combination where the total power consumption of the combined device L is less than 100 OW h and the maximum W
- mobile phone charger 15 W (total power consumption 9 9 OW h) is extracted
- the rice cooker and dryer remain as the equipment L scheduled to be used out of the combination.
- the list creation unit 7 d creates a usable device list that presents the combination of the devices L selected by the device selection unit 7 c (S 16), and further deviates from the combination of devices selected by the device selection unit 7 c. An unusable device list that presents the device L is created (S 17). Then, the list creation unit 7 d outputs the created usable device list and unusable device list to the display device 8 together with information on the remaining capacity of the secondary battery 5 (S 1 8).
- the display device 8 has the name and consumption of the device combined so that it can be used with the current remaining capacity X 1 1 of the secondary battery 5 and the current remaining capacity of the secondary battery 5.
- Unusable device list X 1 2 that associates the power consumption with the names of devices that are out of the combination of devices selected by the device selection unit 7 C and X 1 2 3 is displayed.
- the commercial power supply AC can be used during the daytime when the unit price is high. It is possible to effectively use the charging power of the secondary battery 5 without using the supplied power as much as possible, and the charging power of the secondary battery 5 can be used efficiently and economically during the operation of the device. In addition, the user does not need to consider the combination of the equipment L to be used, and usability is improved.
- the combination with the maximum total power consumption of each device is presented to the user. Charged power can be used to the maximum extent possible. Furthermore, in the usable device list X 1 2, the devices are displayed in descending order of the power consumption amount, and the user selects the device L located above the list by the remaining capacity of the current secondary battery 5. It can be easily recognized that the device can be used efficiently.
- the list creation unit 7d provides information that suggests that the device L, which is included in the unusable device list X13, is operated using the midnight power of the commercial power supply AC with a low unit price. It may be created and output to the display device 8, and the proposed content X 1 4 is displayed in the vicinity of the unusable device list X 1 3 as shown in FIG. Therefore, according to the proposal contents X 14, advice on using the devices included in the unusable device list X 3 is also displayed, which is more convenient for the user. Further, the control device 7 may be provided with means for connecting to a network such as the Internet so that the proposal content based on information acquired from a server on the Internet may be displayed.
- control unit can only use the charging power of the secondary battery 5 during a power failure of the commercial power supply AC.
- the power distribution control is performed so that power is supplied to the device, and the display device 8 has the remaining capacity X 1 1 of the current secondary battery 5, the usable device list X 1 2, and the unusable device list X as described above. 1 3 is displayed. Therefore, it is possible to effectively use the charging power of the secondary battery 5 even during a power failure.
- step S 15 and subsequent steps the device selection unit c extracts combinations of devices L that have power consumption less than the remaining capacity of the secondary battery 5 from the devices to be used, and selects all the extracted combinations. May be.
- the list creation unit 7 d creates a usable device list that presents all combinations of devices selected by the device selection unit 7 C , and displays the list on the display device 8. Therefore, the user has more options in determining the device L to be used by referring to all combinations of devices recommended in the available device list.
- the power distribution system of the present embodiment is shown in FIG. 9, and the same components as those of the first and second embodiments are denoted by the same reference numerals and description thereof is omitted.
- the control device of the present embodiment includes a power history storage unit 7 f and a power information generation unit 7 g.
- the power history storage unit 7 f obtains information on the amount of power consumption during actual operation (or information on changes in power consumption over time) from each device and operates each device L once. Stores the history of power consumption at the time.
- the power information generation unit 7 g refers to the power history storage unit 7 f, calculates the average value of the power consumption when each device L is operated once, and calculates the calculation result as the power information storage unit 7 b.
- the power information storage unit 7b stores power consumption information calculated based on the actual operation of the device, and the accuracy of device selection by the device selection unit 7c is improved.
- the power information generation unit 7 g refers to the power history storage unit 7 f and extracts the maximum value of the power consumption when each device is operated once. 7 May be stored in b.
- the control device 7 charges the secondary battery 5 at the time when the unit price of the commercial power supply AC is high (for example, from 7:00 to 22:00) or during a power failure of the commercial power supply AC. Distribution control is performed to supply power to each device L using only electricity, and the total generated power of the solar cell 3 is used to charge the secondary battery 5. In other words, the secondary battery 5 is the only DC power source used.
- the configuration of the power distribution system of the present embodiment is the same as that of the first embodiment, but the control device 7 charges the secondary battery 5 when the commercial power source AC has a high unit price or during a power failure.
- Distribution control is performed so that power is supplied to each device L using both the power and the generated power of the solar cell 3, and only the surplus power not consumed by the device L is charged to the secondary battery 5. That is, the DC power supply source used is both the secondary battery 5 and the solar battery 3. .
- the secondary battery 5 has a converter 2a, a charger / discharger, mainly by the power supplied from the commercial power supply AC (midnight power) in the time zone where the unit price is cheap (for example, the time zone from 22:00 to 7:00) 2 Charged through b. Then, the control device 7 supplies electric power to each device L using the charging power of the rechargeable secondary battery 5 and the generated power of the solar cell 3 in the time zone where the unit price of the commercial power supply AC is high. Control power distribution.
- the DC device L d on the DC power supply line W d is operated by both the charging power of the secondary battery 5 and the generated power of the solar battery 3 supplied via the power conditioner 4 and the converter 2 a, and further AC
- the AC device La on the power supply path W a is both the charging power of the secondary battery 5 supplied via the inverter 6 and the generated power of the solar battery 3 supplied via the power conditioner 4.
- the secondary battery 5 and the solar battery 3 are the main power supply sources, the power supply from the commercial power supply AC is zero, and the generated power of the solar battery 3 is only surplus power that is not supplied to the equipment. Is used to charge the secondary battery 5.
- the remaining capacity of the secondary battery 5 is reduced, the generated power of the solar battery 3 is reduced, or when using a device L with high power consumption, the remaining capacity of the secondary battery 5 and the solar battery Since it is difficult to drive the device L with only the generated power of 3, the power supplied by the commercial power supply must be used even in the daytime hours when the unit price is high, which is not economical.
- control device 7 presents a list of devices that can be used with the current remaining capacity of the secondary battery 5 and the generated power of the solar battery 3 (the allowable power of the DC power supply source) to the user.
- the remaining capacity detection unit 7 a performs the remaining capacity (W h) of the secondary battery 5 and the generated power amount (W h) is detected.
- the device selection unit 7c refers to the device table TB of the power information storage unit 7b, and calculates the sum of the remaining capacity of the secondary battery 5 and the generated power amount of the solar cell 3 for each device in the device table TB. Compared with the amount of power consumed, the device table TB is selected from the device table TB as the device that can use the device whose power consumption is equal to or less than the sum of the remaining capacity of the secondary battery 5 and the amount of power generated by the solar battery 3.
- each device L in the device table TB is classified as an AC device L a or a DC device L d, so that the power consumption of the AC device La is reduced to the remaining capacity of the secondary battery 5 and solar power.
- the list creation unit 7 d creates an available device list that presents the device L selected by the device selection unit 7 c, and further presents an unusable device list that presents the device L that is not selected by the device selection unit 7 c.
- the list creation unit 7d uses the created usable device list and unusable device list as a secondary Along with information on the remaining capacity of battery 5 and the amount of power generated by solar battery 3, it is output to display device 8 in the vicinity of control device 7 or integrated with control device 7, and display device 8 displays each information and each list.
- the user uses the supply power from the commercial power supply AC as much as possible during the daytime hours when the unit price is high by determining the device to be used by referring to the list of available devices. Therefore, it is possible to effectively use the charging power of the secondary battery 5 and the generated power of the solar battery 3, and efficiently use the charging power of the secondary battery 5 and the generated power of the solar battery 3 when operating as a device. And can be used economically.
- control device 7 performs distribution control to supply power to each device L using the charging power of the secondary battery 5 and the generated power of the solar battery 3 at the time of a power failure of the commercial power supply AC, and the display device 8 Similarly, information on the remaining capacity of the secondary battery 5 and the amount of power generated by the solar battery 3, the usable device list, and the unusable device list are displayed. Therefore, it is possible to effectively use the charged power of the secondary battery 5 and the generated power of the solar battery 3 even during a power failure.
- the AC power supply path W a that supplies power to the AC device L a driven by AC power
- the DC power supply path W d that supplies power to the DC device L d driven by DC power
- power distribution control can be performed in the same manner as described above.
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Direct Current Feeding And Distribution (AREA)
- Secondary Cells (AREA)
Abstract
Description
Claims
Priority Applications (3)
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US13/496,280 US9455574B2 (en) | 2009-09-15 | 2010-08-30 | Power distribution system |
CN201080041021.8A CN102498636B (zh) | 2009-09-15 | 2010-08-30 | 配电系统 |
EP10816756.0A EP2479867B1 (en) | 2009-09-15 | 2010-08-30 | Power distribution system |
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JP2009-213503 | 2009-09-15 | ||
JP2009213503A JP5513819B2 (ja) | 2009-09-15 | 2009-09-15 | 配電システム |
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WO2011033350A1 true WO2011033350A1 (ja) | 2011-03-24 |
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PCT/IB2010/002120 WO2011033350A1 (ja) | 2009-09-15 | 2010-08-30 | 配電システム |
Country Status (5)
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US (1) | US9455574B2 (ja) |
EP (1) | EP2479867B1 (ja) |
JP (1) | JP5513819B2 (ja) |
CN (1) | CN102498636B (ja) |
WO (1) | WO2011033350A1 (ja) |
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JP2013230005A (ja) * | 2012-04-25 | 2013-11-07 | Kyocera Corp | 制御装置、及び電力供給方法 |
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JP5964668B2 (ja) * | 2012-06-18 | 2016-08-03 | トヨタホーム株式会社 | バックアップ給電システム |
JP5868799B2 (ja) * | 2012-07-13 | 2016-02-24 | 京セラ株式会社 | 管理装置、表示装置、表示方法、および画像作成プログラム |
JP2014023276A (ja) * | 2012-07-18 | 2014-02-03 | Toyota Home Kk | 蓄電池制御システム |
US20160156195A1 (en) * | 2013-03-28 | 2016-06-02 | The Chugoku Electric Power Co., Inc. | Power supply control device |
US9865903B1 (en) * | 2014-02-24 | 2018-01-09 | Unlimited Power, LTD. | Portable renewable energy power system |
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JP6246091B2 (ja) * | 2014-07-24 | 2017-12-13 | トヨタホーム株式会社 | 電力供給システム |
US20160190822A1 (en) * | 2014-12-30 | 2016-06-30 | Lg Cns Co., Ltd. | Microgrid energy management system and power storage method for energy storage system |
KR101963445B1 (ko) | 2015-04-02 | 2019-07-31 | 엘에스산전 주식회사 | 전력 측정 시스템 및 이를 이용한 부하 전력 모니터링 시스템 및 그 동작 방법 |
JP2017127047A (ja) * | 2016-01-12 | 2017-07-20 | 三菱電機株式会社 | パワーコンディショナ |
CN106329530B (zh) * | 2016-10-26 | 2019-02-22 | 广东工业大学 | 一种交直流智能家庭微网协同系统及其运行方法 |
JP6783630B2 (ja) * | 2016-11-09 | 2020-11-11 | シャープ株式会社 | 機器制御装置、機器制御方法、およびプログラム |
JP6981204B2 (ja) * | 2017-11-24 | 2021-12-15 | トヨタ自動車株式会社 | 車両 |
WO2019130540A1 (ja) * | 2017-12-28 | 2019-07-04 | 日本電気株式会社 | システム、制御装置、マイニングユニットの制御方法及びプログラム |
DE102018201627A1 (de) * | 2018-02-02 | 2019-08-08 | BSH Hausgeräte GmbH | Energiemanagement für ein Hausgerät mit aufladbarem Energiespeicher |
JP7152167B2 (ja) * | 2018-03-22 | 2022-10-12 | シャープ株式会社 | 電力管理装置および電力管理プログラム |
US11054850B2 (en) * | 2018-04-24 | 2021-07-06 | WE CARE Solar | Portable solar power management system |
US11716050B2 (en) | 2018-11-07 | 2023-08-01 | Ravensafe, LLC | Modular power array |
JP2022080767A (ja) * | 2020-11-18 | 2022-05-30 | トヨタ自動車株式会社 | 制御装置、プログラム及び制御方法 |
JPWO2023149050A1 (ja) * | 2022-02-03 | 2023-08-10 |
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Also Published As
Publication number | Publication date |
---|---|
EP2479867A1 (en) | 2012-07-25 |
EP2479867A4 (en) | 2016-09-14 |
JP5513819B2 (ja) | 2014-06-04 |
US9455574B2 (en) | 2016-09-27 |
EP2479867B1 (en) | 2018-06-27 |
CN102498636B (zh) | 2015-07-15 |
US20120187761A1 (en) | 2012-07-26 |
JP2011066968A (ja) | 2011-03-31 |
CN102498636A (zh) | 2012-06-13 |
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