WO2011107846A1 - Système d'alimentation en énergie électrique - Google Patents

Système d'alimentation en énergie électrique Download PDF

Info

Publication number
WO2011107846A1
WO2011107846A1 PCT/IB2011/000343 IB2011000343W WO2011107846A1 WO 2011107846 A1 WO2011107846 A1 WO 2011107846A1 IB 2011000343 W IB2011000343 W IB 2011000343W WO 2011107846 A1 WO2011107846 A1 WO 2011107846A1
Authority
WO
WIPO (PCT)
Prior art keywords
power
unit
storage battery
shared
consumer
Prior art date
Application number
PCT/IB2011/000343
Other languages
English (en)
Japanese (ja)
Inventor
賢二 中北
Original Assignee
パナソニック電工株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2010044440A external-priority patent/JP2011182555A/ja
Priority claimed from JP2010073585A external-priority patent/JP2011205871A/ja
Application filed by パナソニック電工株式会社 filed Critical パナソニック電工株式会社
Publication of WO2011107846A1 publication Critical patent/WO2011107846A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
    • 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
    • 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
    • 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
    • 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 supply system used for a consumer group such as an apartment house composed of a plurality of consumers.
  • an energy generating unit such as a solar cell or a fuel cell is installed in a consumer so that a part of electric power necessary for the customer is covered by the energy generating unit.
  • the surplus power of the solar cell generally flows backward to the commercial power system. And sold to a power company.
  • power sales will be regulated from the viewpoint of stabilizing the power of the commercial power system, and in the future, surplus power from solar cells can be freely sold. It may be impossible.
  • an energy creation unit such as a solar cell may be installed even in a consumer group such as an apartment house composed of a group of a plurality of consumers (dwelling units) (see, for example, Patent Document 1).
  • a consumer group such as an apartment house composed of a group of a plurality of consumers (dwelling units)
  • Patent Document 1 although one energy creation part shared by a plurality of consumers is installed in an apartment house, it is not limited to this example, and it is also conceivable to install an energy creation part for each consumer ( For example, see Patent Document 2).
  • a power supply system in which one shared storage battery (common storage battery) is installed in a consumer group consisting of a group of a plurality of consumers, and the shared storage battery can be shared by a plurality of consumers in the consumer group.
  • the system control unit provided in the shared storage battery detects the excess or deficiency of power for each consumer, and the stored power of the shared storage battery is supplied to the consumer who is deficient in power. Supply.
  • the present invention has been made in consideration of the above points, and an electric power supply system capable of effectively using the electric power generated by the energy creation unit as an entire consumer group made up of a plurality of consumers. provide.
  • a power supply system that can prevent an important consumer from receiving sufficient power from the shared storage battery among a plurality of consumers who share the shared storage battery while a sufficient amount of power remains in the shared storage battery I will provide a.
  • an energy creation unit that is provided in at least one consumer among a plurality of consumers constituting one consumer group and generates electric power used by the load of the consumer; If there is surplus power in the shared power storage unit shared by all the consumers in the consumer group and the power generated by the energy creation unit in the consumer, the shared power storage unit is used with the surplus power.
  • a power supply system including a control device for charging is provided.
  • the energy creation unit may generate electric power that is provided in each of a plurality of consumers constituting the one consumer group and that is used by a load of the consumer.
  • control device includes a power meter that measures the amount of power exchanged with the shared power storage unit for each consumer, and a plurality of the consumers based on the amount of power measured by the power meter.
  • a cost calculation unit that calculates a common benefit cost to be collected from each of the costs, and the cost calculation unit reduces the common benefit cost by an amount of power accumulated in the shared power storage unit during a predetermined period. May be calculated.
  • control device according to a power meter that measures the amount of power exchanged with the shared power storage unit for each consumer, according to the distribution determined based on the amount of power measured by the power meter,
  • a power limiting unit that limits power supplied to each of the consumers from a shared power storage unit, and the power limiting unit is configured to share the higher the amount of power stored in the shared power storage unit during a predetermined period.
  • the distribution of power may be determined so that the amount of power supplied from the power storage unit is increased.
  • the power supply system further includes an individual power storage unit that is provided in at least one of the consumers including the energy generating unit, is charged at the output of the energy generating unit, and is discharged to the load of the consumer. May be.
  • a shared storage battery shared by a plurality of consumers constituting one consumer group and a power supply control device for supplying the consumer with the power stored in the shared storage battery.
  • the power supply control device performs a priority system that distributes the electric power stored in the shared storage battery to each of the consumers based on priority information indicating the priority of power supply for each of the consumers.
  • a power supply system is provided.
  • the power supply control device is stored in the shared storage battery when a priority management unit that stores the priority information of each of the consumers and an event in which supply power is insufficient in the consumer occurs. You may have a priority control part which performs priority control which distributes electric power to each of the said consumers based on the said priority information.
  • the power supply control device further includes a power failure detection unit that detects the presence or absence of a power failure of a commercial power source, and the priority control unit determines that the event has occurred when a power failure is detected by the power failure detection unit.
  • the priority control may be performed.
  • the power supply control device automatically sets the priority of the consumer in the priority information based on the information acquisition unit that acquires load information from the consumer and the information acquired by the information acquisition unit. You may further have an automatic setting part.
  • the priority management unit stores the priority of power supply for each load as the priority information, and the priority control unit determines the power stored in the shared storage battery based on the priority information. You may sort by each.
  • At least one of the consumers constituting the consumer group is provided with an individual storage battery that supplies power to the load of the consumer, and the power supply control device has a predetermined amount of power stored in the shared storage battery. If it falls below a threshold value, it may replace with the said shared storage battery and the electric power accumulate
  • the present invention has an advantage that the power generated by the energy generating unit can be effectively used as a whole consumer group including a plurality of consumer groups.
  • the present invention prevents an important consumer from receiving sufficient power supply from the shared storage battery among a plurality of consumers sharing the shared storage battery in a state where a sufficient amount of power remains in the shared storage battery. There is an advantage that you can.
  • FIG. 1 is a schematic system configuration diagram showing a configuration of a first embodiment.
  • FIG. 2 is a schematic block diagram showing the configuration of the above.
  • FIG. 3 It is explanatory drawing which shows an operation
  • FIG. 4 is an explanatory diagram showing the operation of the second embodiment.
  • FIG. 5A and FIG. 5B are schematic block diagrams showing the configuration of the third embodiment.
  • FIG. 6 is a schematic system configuration diagram showing the above power supply system.
  • the power supply system of the present embodiment is applied to an apartment house composed of a group of a plurality of dwelling units (customers). As shown in FIG. 1, a plurality of dwelling units A1 to An and public facilities such as public facilities are used. It includes area C0 and commercial power supply AC. Each of the dwelling units A1 to An includes a solar cell 1 as an energy generating unit.
  • the electric power generated by the solar cell 1 is used in loads (lighting fixtures, air conditioners, refrigerators, etc.) 2 of the dwelling units A1 to An.
  • the solar cell 1 is installed on the veranda of each of the dwelling units A1 to An, and the power generation capacity of the solar cell 1 of each of the dwelling units A1 to An is substantially uniform.
  • each dwelling unit A1 to An has an individual storage battery (individual power storage unit) that can store the power generated by the solar battery 1 when the output of the solar battery 1 is larger than the power consumption consumed by the load 2.
  • 3 are installed as components of the power supply system.
  • the individual storage battery 3 and the solar battery 1 are connected to the load 2 via a distribution board device 10 having a power conditioner 11 (see FIG. 2) including a power conversion circuit.
  • the power conditioner 11 charges the individual storage battery 3 with the power of the solar cell 1 (power obtained by subtracting the power consumption of the load 2 from the output of the solar cell 1), and the output of only the solar cell 1 cannot cover the power consumption
  • the electrical energy in the individual storage battery 3 is discharged to the load 2.
  • the load 2 of each dwelling unit A1 to An is also connected to the commercial power source AC. If the output from the solar cell 1 and the individual storage battery 3 alone cannot cover the total power consumption of the load 2, the load 2 is commercial Power is supplied from the power supply AC. Therefore, in each of the dwelling units A1 to An, the electric power generated by the solar cell 1 is obtained by operating the load 2 with the electric power directly supplied from the solar cell 1 to the load 2 or once stored in the individual storage battery 3. It can be used effectively.
  • the solar cell 1 since the solar cell 1 is used for the energy generating unit, basically, the individual storage battery 3 is charged with a part of the electric power generated by the solar cell 1 in the daytime, and the individual storage battery 3 is charged at night. Electric power will be discharged. Therefore, if the amount of power generated by the solar cell 1 per day and the amount of power consumed by the load 2 are balanced, it is possible to cover substantially all of the power consumed by the load 2 only by the power generated by the solar cell 1. It is. However, since the power consumption of the load 2 is different for each of the dwelling units A1 to An, the balance between the power generation amount and the power consumption amount may vary among the dwelling units A1 to An.
  • the power supply system of the present embodiment is provided with a shared storage battery (shared power storage unit) 4 shared by a plurality of dwelling units A1 to An that constitute the apartment house, and surplus power is generated when surplus power is provided in each dwelling unit A1 to An. And a control device that charges the shared storage battery 4 by supplying electric power to the shared storage battery 4.
  • the distribution board device 10 installed in each of the dwelling units A1 to An and the distribution board device 20 installed in the common area C0 described later constitute the control device. If there is surplus power that cannot be stored in the individual storage battery 3 during the output of the solar cell 1 in each of the dwelling units A1 to An, the control device operates to give the surplus power to the shared storage battery 4.
  • the shared storage battery 4 is installed, for example, in a common area C0 shared by a plurality of dwelling units A1 to An, such as a rooftop of an apartment house, instead of specific dwelling units A1 to An.
  • the shared storage battery 4 is connected to a load (hereinafter referred to as “shared load”) 5 of the common area C0 such as an entrance lighting and an elevator via the switchboard device 20, and the electric power stored in the shared storage battery 4 is mainly used. Used with shared load 5. That is, if there is a dwelling unit A1 to An in which surplus power is generated, the control device outputs the surplus power from the dwelling unit A1 to An to the shared storage battery 4 and accumulates it in the shared storage battery 4, and the surplus power is supplied to the shared load 5. Available.
  • the shared load 5 is also connected to the commercial power supply AC, and when the total power consumption of the shared load 5 cannot be covered only by the output from the shared storage battery 4, the shared load 5 is supplied with power from the commercial power supply AC. .
  • the electricity charge for commercial power consumed by the shared load 5 is covered by the common benefit cost provided by each of the dwelling units A1 to An in the apartment house. According to the configuration described above, even if surplus power is generated in any of the dwelling units A1 to An, the surplus power is accumulated in the shared storage battery 4 so that the surplus as a whole of the apartment house (a plurality of dwelling units A1 to An) is obtained. Electricity can be used effectively. Thereby, even if the power sale to an electric power company may be regulated, there is an advantage that the electric power generated by the solar cell 1 can be used without waste, leading to energy saving.
  • the distribution board device 10 a power conditioner 11, a dwelling unit side control unit 12 that controls the power conditioner 11, a power conditioner 11, a commercial power supply AC, and a load 2 inserted between the load 2. 1 and a second resolver 13 and 14 are provided. Furthermore, the distribution panel device 10 was exchanged between the dwelling unit side communication unit 15 having a communication function with the common side communication unit 24 provided in the switchboard device 20 of the common area C0 and the dwelling unit A1-the common area C0.
  • a power meter 16 for measuring the amount of power and a power limiting unit 17 to be described later are provided.
  • the dwelling unit side control unit 12 monitors the output of the solar cell 1 and the remaining capacity of the individual storage battery 3, and further measures the power consumption at the load 2, and whether the output of the solar cell 1 exceeds the power consumption of the load 2 or not.
  • the power conditioner 11 is controlled according to whether or not. That is, the dwelling unit side control unit 12 supplies the output of the solar cell 1 to the load 2, and charges the individual storage battery 3 if there is a margin in the output of the solar cell 1, and discharges the individual storage battery 3 if there is no margin.
  • the power conditioner 11 is controlled to supply power to the load 2.
  • a communication function is provided in a watt hour meter (not shown) provided in the dwelling unit A1, and communication is performed between the watt hour meter and the dwelling unit side communication unit 15, thereby What is necessary is just to send the power consumption data obtained by the total to the dwelling unit side control part 12.
  • the dwelling unit side control part 12 will stop charge of the individual storage battery 3, when the remaining capacity of the individual storage battery 3 reaches an upper limit when there is a margin in the output of the solar battery 1, and the surplus power of the solar battery 1 is shared storage battery 4 to control the power conditioner 11.
  • the remaining capacity (full charge capacity) in the fully charged state where the individual storage battery 3 is saturated is set as the upper limit value.
  • the present invention is not limited to this example.
  • the power meter 16 individually measures the amount of power transferred between the power conditioner 11 of each dwelling unit A1 to An and the shared storage battery 4 in the common area C0 for each dwelling unit A1 to An.
  • the measurement result of the power meter 16 can be displayed on a display unit (not shown) provided in the dwelling unit A1. Thereby, it becomes possible to confirm how much electric power is being exchanged with the shared storage battery 4 in each of the dwelling units A1 to An.
  • the first and second disconnectors 13 and 14 disconnect the power conditioner 11 from the commercial power supply AC so that a reverse power flow from the power conditioner 11 to the commercial power supply AC does not occur.
  • the switchboard device 20 in the common area C0 includes a power converter 21, a shared-side control unit 22 that controls the power converter 21, a charge / discharge unit 23 that charges and discharges the shared storage battery 4, and a shared-side communication. Part 24.
  • the switchboard device 20 includes third and fourth disconnectors 25 and 26 inserted between the power converter 21 and the commercial power supply AC and the shared load 5.
  • communication between the dwelling unit side communication part 15 and the common use side communication part 24 shall be performed via the exclusive signal line L2, it is not restricted to this, For example, between the distribution board apparatus 10 and the switchboard apparatus 20 It is good also as a structure which communicates using the power line L1 between.
  • the shared-side control unit 22 monitors the remaining capacity of the shared storage battery 4 and further measures the power consumption at the shared load 5. According to the relationship between the remaining capacity of the shared storage battery 4 and the power consumption of the shared load 5.
  • the power converter 21 is controlled.
  • the shared-side control unit 22 discharges the shared storage battery 4 and supplies power to the shared load 5. If not, the shared-side control unit 22 supplies power to the shared load 5 from the commercial power supply AC. Thus, the power converter 21 is controlled.
  • a communication function is provided in a watt-hour meter (not shown) provided in the common area C0, and communication is performed between the watt-hour meter and the shared-side communication unit 24. The power consumption data obtained by the quantity meter may be sent to the shared-side control unit 22.
  • the shared-side control unit 22 also has a function of controlling the charge / discharge unit 23.
  • the charge / discharge unit 23 is connected between the power conditioner 11 of the dwelling unit A ⁇ b> 1 and the shared storage battery 4, and charges the shared storage battery 4 by supplying the output of the power conditioner 11 to the shared storage battery 4.
  • the shared storage battery 4 since the shared storage battery 4 is installed in the shared area C ⁇ b> 0, a storage battery having a larger capacity than the individual storage battery 3 can be used as the shared storage battery 4. For this reason, the shared storage battery 4 is rarely fully charged, but when the remaining capacity of the shared storage battery 4 has reached the upper limit (here, 95% of the full charge capacity), the shared storage battery 4 is charged. Shall not be performed.
  • the dwelling unit side control part 12 controls the power conditioner 11 so that the surplus electric power of the solar cell 1 may be given to the shared storage battery 4
  • a charge request is sent from the dwelling unit side communication part 15 to the shared side control part 22. put out.
  • the shared-side control unit 22 that has received the charge request controls the charge / discharge unit 23 so as to charge the shared storage battery 4 with the power supplied from the power conditioner 11 of the dwelling unit A1 that is the transmission source of the charge request. Therefore, when surplus power is generated on the dwelling unit A1 side, this surplus power is supplied to the shared storage battery 4 to charge the shared storage battery 4.
  • the shared-side control unit 22 returns a non-chargeable response from the shared-side communication unit 24 to the dwelling unit-side control unit 12.
  • the dwelling unit side control unit 12 that has received the charge disable response controls the power conditioner 11 to stop the output of surplus power to the shared storage battery 4, and avoids overcharging of the shared storage battery 4.
  • the power supply system is configured to be able to supply not only the shared load 5 but also the load 2 of each dwelling unit A1 to An with the electric energy stored in the shared storage battery 4.
  • the load 2 can be supplied with power from the commercial power supply AC. If the storage battery 4 has a sufficient remaining capacity, electric power is supplied from the shared storage battery 4.
  • the dwelling unit side control unit 12 issues a discharge request from the dwelling unit side communication unit 15 to the shared side control unit 22 when only the output from the solar cell 1 and the individual storage battery 3 cannot cover the total power consumption of the load 2.
  • the shared-side control unit 22 that has received the discharge request controls the charging / discharging unit 23 to release the electrical energy stored in the shared storage battery 4 to the power conditioner 11 of the dwelling unit A1 that is the transmission request source. To do.
  • the shared-side control unit 22 returns a non-dischargeable response from the shared-side communication unit 24 to the dwelling unit-side control unit 12.
  • the dwelling unit side control unit 12 that has received the response indicating that the discharge is impossible controls the power conditioner 11 so as to supply power from the commercial power supply AC to the load 2.
  • Whether or not the shared storage battery 4 has a sufficient remaining capacity is determined by whether or not the remaining capacity of the shared storage battery 4 is equal to or greater than a predetermined lower limit value.
  • the shared storage battery 4 is assumed to be shared by all the dwelling units A1 to An as an emergency power source in the event of a power failure or the like, and the remaining capacity that must be secured as a minimum as an emergency power source is set as the lower limit value. For example, when it is necessary to secure 30% of the full charge capacity of the shared storage battery 4 as an emergency power source, the shared-side control unit 22 issues a discharge request if the remaining capacity of the shared storage battery 4 is 30% or more of the full charge capacity. Electric power is supplied from the shared storage battery 4 to the dwelling units A1 to An.
  • the shared-side control unit 22 collects measurement results from the power meters 16 of the respective dwelling units A1 to An via the dwelling unit-side communication unit 15 and the shared-side communication unit 24, and the power exchanged with the shared storage battery 4 The amount is managed for each of the dwelling units A1 to An.
  • the shared-side control unit 22 collects the measurement results of the power meter 16 periodically (for example, every hour), and uses the integrated value of the power amount in a predetermined period (for example, one month) as power information as needed for each of the dwelling units A1 to An. Record. The power information recorded in this way is used to limit the power output from the shared storage battery 4 and supplied to each of the dwelling units A1 to An.
  • the shared-side control unit 22 calculates the contribution to the charging of the shared storage battery 4 for each of the dwelling units A1 to An based on the power information, and the dwelling unit with a higher contribution is preferentially supplied with power from the shared storage battery 4.
  • the power supply to each dwelling unit A1 to An is controlled so that it can be performed.
  • the shared-side control unit 22 calculates the amount of power stored in the shared storage battery 4 within each predetermined period for each of the dwelling units A1 to An, and the ratio of the calculated amount of power as the contribution of each of the dwelling units A1 to An.
  • the power proportional to the contribution is set as the maximum power that can be supplied to each of the dwelling units A1 to An.
  • the amount of power stored in the shared storage battery 4 from each of the dwelling units A1 to An here is supplied from the shared storage battery 4 to the dwelling units A1 to An from the amount of power given to the shared storage battery 4 from each of the dwelling units A1 to An.
  • the amount of power is calculated by subtracting the amount of power. For example, as shown in FIG. 3, 20% of the remaining capacity X0 of the current shared storage battery 4 is accumulated from the dwelling unit A1, 70% is accumulated from the dwelling unit A2, and the remaining 10% is accumulated from the dwelling unit A3. Then, the contribution is 20% for the dwelling unit A1, 70% for the dwelling unit A2, and 10% for the dwelling unit A3.
  • the maximum output current of the shared storage battery 4 is 10 (A)
  • the maximum current that can be output from the shared storage battery 4 is 2 (A) for the dwelling unit A1, 7 (A) for the dwelling unit A2, and the dwelling unit A3. 1 (A).
  • the electric energy accumulated from the dwelling unit A1 is represented as X1
  • the electric energy accumulated from the dwelling unit A2 is represented as X2
  • the electric energy accumulated from the dwelling unit A3 is represented as X3.
  • the upper limit value of the capacity (95% of the full charge capacity) is represented by Xth1.
  • the shared-side control unit 22 controls the power limiting unit 17 of each of the dwelling units A1 to An so as to limit the power supplied from the shared storage battery 4 according to the distribution determined in this way. That is, when there is a discharge request from the dwelling unit A1, the shared-side control unit 22 can supply the dwelling unit A1 to the dwelling unit A1 via the dwelling unit-side communication unit 15 and the shared-side communication unit 24. A restriction request indicating the maximum power is output. Upon receipt of the restriction request, the dwelling unit control unit 12 controls the power restriction unit 17 so as to restrict the supply power (maximum current) from the shared storage battery 4 in accordance with the restriction request. The contribution level is reset every predetermined period that takes the integrated value of the electric energy.
  • the contribution level is determined by the electric energy accumulated in the shared storage battery 4 during the current month.
  • the dwelling units A1 to An having a higher contribution to the charging of the shared storage battery 4 can receive a large current from the shared storage battery 4, and between the dwelling unit having a low contribution and the higher dwelling unit.
  • the shared storage battery 4 has a maximum output current. It cannot output more current.
  • the dwelling unit having a high contribution degree will share the electric energy stored in the shared storage battery 4 with another dwelling unit having a low contribution degree. Will be deprived of this, resulting in injustice between the two units.
  • the power supplied from the shared storage battery 4 is limited according to the contribution to the charging of the shared storage battery 4 for each of the residential units A1 to An, Can eliminate the unfairness between.
  • the method of ensuring fairness between the low contribution unit and the high contribution unit is not limited to the method of differentiating the maximum current that can be output from the shared storage battery 4 as described above for each of the units A1 to An. .
  • the power limiting unit 17 supplies power so that the amount of power finally supplied from the shared power storage unit 4 increases as the amount of power stored in the shared power storage unit 4 increases (that is, the unit with higher contribution). Anything that can be distributed is acceptable.
  • the power limiting unit 17 may limit the power supply so that power is supplied only to the high-contribution dwelling unit.
  • the dwelling unit control unit 12 determines the presence or absence of surplus power using the prediction result of the future power generation amount of the solar cell 1 and the power consumption amount at the load 2 as described below. You may make it do. That is, the dwelling unit side control unit 12 predicts the power generation amount of the solar cell 1 and the power consumption amount at the load 2 for a certain period in the future (here, the current day), and these and the remaining amount of the current individual storage battery 3. It is predicted whether the individual storage battery 3 will be saturated in the future based on the relationship with the capacity.
  • the dwelling unit side control unit 12 obtains the power consumption amount from the monitoring result of the power consumption of the load 2, and the obtained past power consumption amount is determined by month, day of the week (may be weekday or holiday), time zone Create a database according to weather and other conditions.
  • the dwelling unit side control part 12 estimates the power consumption of the day by applying the condition of the day to this database.
  • the dwelling unit side control part 12 predicts the electric power generation amount of the solar cell 1 of the day by making the data of the electric power generation amount of the past solar cell 1 into a database similarly to power consumption, and applying the conditions of the day to this database.
  • the dwelling unit side control unit 12 determines that surplus power corresponding to the difference between the two is generated during the day when the predicted power generation amount of the day exceeds the sum of the predicted power consumption of the day and the chargeable capacity of the individual storage battery 3. To do. In this case, the dwelling unit side control unit 12 accumulates in the shared storage battery 4 as surplus power, the amount of power obtained by subtracting the sum of the predicted power consumption of the day and the chargeable capacity of the individual storage battery 3 from the predicted power generation amount of the current day. Thus, the power conditioner 11 is controlled.
  • the power supply system according to the present embodiment is different from the power supply system according to the first embodiment in that the power supply system according to the present embodiment includes a cost calculation unit 27 that calculates the amount of common benefit cost contributed from each of the dwelling units A1 to An.
  • the common service cost is collected monthly from each of the dwelling units A1 to An, and is used for the electricity bill of commercial power consumed by the shared load 5.
  • the cost calculation unit 27 is provided in the switchboard device 20 in the common area C0, and based on the power information obtained by integrating the amount of power exchanged with the common storage battery 4 for each of the dwelling units A1 to An, each dwelling unit A1 to A1. Calculate the common service cost collected from An.
  • the cost calculation unit 27 calculates the amount of electric power stored in the shared storage battery 4 for a predetermined period (for example, one month) for each of the dwelling units A1 to An, and increases or decreases the common service cost from the basic fee according to the determined electric energy.
  • the increase / decrease amount is calculated by converting the amount of electric power into an amount of money at a predetermined electric power unit price (for example, 21 [yen / kWh]).
  • the amount of power stored in the shared storage battery 4 from each of the dwelling units A1 to An here is supplied from the shared storage battery 4 to the dwelling units A1 to An from the amount of power given to the shared storage battery 4 from each of the dwelling units A1 to An.
  • the amount of power is calculated by subtracting the amount of power.
  • the amount of power supplied from the shared storage battery 4 to the dwelling units A1 to An is larger than the amount of power given from the dwelling units A1 to An to the shared storage battery 4, and the amount of power stored in the shared storage battery 4 is negative.
  • the common service cost will be increased.
  • the cost calculation unit 27 obtains the amount of power stored in the shared storage battery 4 during the current month for each of the dwelling units A1 to An, and obtains the obtained amount of power.
  • the common service cost is reduced (or increased) from the default basic charge by the amount of.
  • the cycle in which the cost calculation unit 27 calculates the common service cost is not limited to one month, and the cost calculation unit 27 may reduce or increase the common service cost in a cycle such as one day or one week, for example. Also good.
  • the common service cost increases or decreases depending on the amount of electric power given to the shared storage battery 4, so that the shared storage battery 4 is sold or purchased. Equivalent to what has been done. Therefore, it becomes possible to receive the benefit that the common utility cost is lower as the contribution to the charging of the shared storage battery 4 is higher, and it is possible to ensure fairness between the low contribution and the high contribution. .
  • the power supply from the shared storage battery 4 is limited according to the contribution to the charging of the shared storage battery 4 for each of the dwelling units A1 to An as described in the first embodiment. Even if it is not adopted, it is possible to ensure fairness among the dwelling units A1 to An. Therefore, in this embodiment, it is not essential to employ a configuration in which the power supplied from the shared storage battery 4 is limited according to the degree of contribution. However, if the supply power from the shared storage battery 4 is limited according to the contribution, and the common utility cost is increased or decreased according to the contribution to the remaining capacity of the shared storage battery 4 at the end of the month, It is possible to achieve fairness among the dwelling units A1 to An.
  • the cost calculation unit 27 increases the unit price of electricity as the remaining capacity of the shared storage battery 4 decreases, thereby The balance between the remaining capacity of the storage battery 4 and the power demand is balanced. For example, when the power unit price is changed on a daily basis, the cost calculation unit 27 checks the remaining capacity of the shared storage battery 4 at the end of the day (24:00), and the remaining capacity is below the lower limit value. Increase the unit price of electricity for the day. That is, as shown in FIG.
  • each of the plurality of consumers is exemplified as including all energy generating units.
  • the energy generating unit is included in at least one of the plurality of consumers. May be.
  • generated must not be installed in all the consumers provided with an energy creation part, but is at least one of the consumers provided with an energy creation part. May be installed only.
  • each said embodiment demonstrated the power supply system used for the housing complex which consists of a group of several dwelling units
  • the power supply system mentioned above is not only a housing complex but the various consumers which consist of a some consumer.
  • Applicable to groups for example, the above-described power supply system can be applied to a consumer group such as a community composed of a plurality of detached houses built in a specific area. (Embodiment 3)
  • the power supply system of the present embodiment is applied to a consumer group composed of a group of a plurality of consumers (such as dwelling units and shops).
  • the community which consists of a some consumer in a specific area is demonstrated as an example of a consumer group. As shown in FIG.
  • the power supply system of the present embodiment includes a common area 200 such as a public facility, a plurality of consumers 300, and a commercial power supply 110.
  • a public device 220 is installed in the public area 200, and a consumer device 330 is provided in each consumer 300.
  • the shared device 220 and each customer device 330 are connected to each other via the distribution line 111 connected to the commercial power supply 110 and can communicate with each other via the communication network 112.
  • the shared device 220 is provided with a chargeable / dischargeable shared storage battery 240 and a power generation facility 250 that generates DC power for charging the shared storage battery 240.
  • the shared storage battery 240 is shared by a plurality of consumers 300 constituting a consumer group.
  • the power generation facility 250 is formed of, for example, a solar cell or a fuel cell, and generates electric power for charging the shared storage battery 240 separately from the commercial power source 110.
  • a plurality of loads (lighting fixtures, telephones, televisions, etc.) 360 are connected to the consumer device 330. These loads 360 normally operate by receiving power supply from the commercial power supply 110 via the distribution line 111. On the other hand, for example, in an emergency in which the supply power is insufficient in the customer 300 due to a power failure of the commercial power supply 110, these loads 360 operate by receiving power supply from the shared storage battery 240 via the distribution line 111.
  • at least one consumer 300 is provided with a power storage facility 370 described later.
  • the shared device 220 and the customer device 330 installed in each customer 300 constitute a power supply control device.
  • the power supply control device has a function of supplying the power stored in the shared storage battery 240 to the consumer 300.
  • the shared device 220 includes a charge / discharge unit 221 that charges and discharges the shared storage battery 240, a storage battery management unit 222 that manages the shared storage battery 240, and a shared communication unit 223 that is connected to the communication network 112. And a priority control unit 224 and a priority management unit 225 described later.
  • the shared device 220 includes a power failure detection unit 226 that detects a power failure of the commercial power supply 110, a meter communication unit 227 that communicates with the power meter 340, and a power amount storage unit 228 that stores measurement results of the power meter 340. is doing.
  • the shared communication unit 223 communicates with the customer device 330 via the communication network 112.
  • the power meter 340 is installed in each consumer 300 and measures the amount of power exchanged between the consumer device 330 and the shared device 220 for each consumer 300.
  • the power storage unit 228 stores the measurement result of the power meter 340 for each customer 300.
  • the charging / discharging unit 221 has two operation modes: a charging mode for charging the shared storage battery 240 and a discharging mode for discharging the shared storage battery 240.
  • the charging mode the charging / discharging unit 221 charges the shared storage battery 240 using the output of the power generation facility 250 or the commercial power source 110.
  • the charging / discharging unit 221 includes a power conversion unit (not shown). When the common storage battery 240 is charged by the commercial power supply 110, the commercial power supply 110 is converted into a DC voltage by the power conversion unit and the shared storage battery 240 is used. Charge.
  • the charging / discharging unit 221 converts the output of the shared storage battery 240 into an AC voltage at the power conversion unit and sends it to the distribution line 111. Thereby, the electric power accumulated in the shared storage battery 240 is supplied to each consumer 300 via the distribution line 111.
  • the operation mode of the charging / discharging unit 221 is switched by the storage battery management unit 222.
  • the storage battery management unit 222 switches the operation mode of the charge / discharge unit 221 in accordance with an instruction from the priority control unit 224.
  • the storage battery management unit 222 monitors the remaining capacity of the shared storage battery 240 in conjunction with the control of the charging / discharging unit 221, and the remaining capacity of the shared storage battery 240 reaches an upper limit (for example, 95% of the full charge capacity). When it does, it has the function to stop charge of the shared storage battery 240.
  • the priority control unit 224 receives the output of the power failure detection unit 226 and issues an instruction to the storage battery management unit 222 so that the operation mode of the charge / discharge unit 221 is set to the discharge mode only during a power failure of the commercial power supply 110. .
  • a disconnector 113 is inserted between the shared device 220 and the commercial power supply 110 in the distribution line 111, and the power failure detection unit 226 opens the disconnector 113 when a power failure of the commercial power supply 110 is detected. Therefore, since the space between the charging / discharging unit 221 of the shared device 220 and the commercial power supply 110 is opened during a power failure, the output of the shared storage battery 240 does not flow backward to the commercial power supply 110 side.
  • the power failure detection unit 226 is connected to a distribution line between the circuit breaker 113 and the commercial power source 110 and can detect whether or not the commercial power source 110 needs a power failure. As shown in FIG.
  • the consumer device 330 includes an in-house distribution board 331 connected to the distribution line 111 via the power meter 340, a load management unit 332 that manages the type of the load 360, and a control unit that will be described later. 333 and a power distribution limiting unit 334. Further, the consumer device 330 includes a consumer communication unit 335 that is connected to the communication network 112 and communicates with the shared communication unit 223.
  • FIG. 5B illustrates the customer 300 to which the power storage facility 370 is attached.
  • the power storage facility 370 includes an individual storage battery 371 that can be charged and discharged, and an individual charge / discharge unit 372 that charges and discharges the individual storage battery 371.
  • the in-house distribution board 331 is connected to a plurality of loads 360 and distributes the power supplied from the commercial power supply 110 or the shared storage battery 240 via the distribution lines 111 to the plurality of loads 360. Further, in the customer 300 having the power storage facility 370, the individual charge / discharge unit 372 is connected to the in-house distribution board 331. When the individual storage battery 371 is charged by the commercial power supply 110 via the distribution line 111 and the power stored in the individual storage battery 371 is not an event described later, the load 360 of the customer 300 in which the individual storage battery 371 is installed is used. used.
  • the load management unit 332 includes an information storage unit 336 that stores information related to the load 360 connected to the in-house distribution board 331 and an information input / output unit 337 that inputs and outputs information to and from the information storage unit 336.
  • the information storage unit 336 stores a plurality of pieces of information such as types (for each type of lighting fixtures, telephones, televisions, etc.), rated power consumption, priority, and the like for each load 360 in a database.
  • a person inputs information in the information storage unit 336 individually from the information input / output unit 337, but the information input / output unit 337 communicates with the load 360 to automatically load the information on the load 360. May be obtained and stored in the information storage unit 336.
  • the priority management unit 225 of the shared device 220 stores in advance priority information indicating the priority of power supply for each consumer 300.
  • the priority information includes a table in which a management ID, an address, a meter ID for identifying the power meter 340, and a priority are associated with each customer 300 as shown in Table 1 below.
  • Table 1 the priority of dwelling unit A (management ID: X001) is “3”
  • the priority of dwelling unit B (management ID: X002) is “1”
  • the priority of dwelling unit C (management ID: X003) is
  • the priority of “6” and dwelling unit D (management ID: X004) is set to “4”.
  • the smaller the numerical value of the priority the higher the priority.
  • Table 1 shows that the priority becomes lower in the order of dwelling unit B, dwelling unit A, dwelling unit D, and dwelling unit C.
  • the priority information is set by a system administrator using a dedicated setting terminal (not shown) when the power supply system is constructed.
  • the manager determines the priority of each customer 300 according to the role of each customer 300 in the customer group.
  • the manager is an important customer such as the customer 300 designated as an evacuation center, the customer 300 located geographically in the area where the customer group is constructed, or a crime prevention base or a communication base.
  • the priority is determined so that the priority is higher for the customer 300 who plays a role.
  • the priority control unit 224 uses the power stored in the shared storage battery 240 as the above-described priority information when an event (hereinafter simply abbreviated as “event”) occurs in the customer 300 that power supply is insufficient. Based on this, priority control is performed for each customer 300.
  • the priority control unit 224 determines that an event has occurred when the power failure detection unit 226 detects a power failure of the commercial power supply 110 and performs priority control. Specifically, the priority control unit 224 controls the power distribution restriction unit 334 of each customer 300 so as to individually limit the power supplied from the shared storage battery 240 for each customer 300.
  • the priority control unit 224 transmits a power distribution instruction for distributing the power of the shared storage battery 240 to the consumer device 330 of each consumer 300 via the communication network 112 from the shared communication unit 223.
  • the control unit 333 of the consumer device 330 controls the power distribution restriction unit 334 according to the power distribution instruction, and restricts the power supplied from the in-house distribution board 331 to the load 360.
  • the power distribution limiting unit 334 has a function of limiting the power supplied from the in-house distribution board 331 to the load 360, and limits the maximum power (maximum current) that can be supplied to the load 360 or supplies power to the load 360. Can be completely shut off.
  • the priority control unit 224 is configured so that each of the consumers 300 has a lower priority in the order of dwelling unit B, dwelling unit A, dwelling unit D, dwelling unit C.
  • a power distribution instruction to be sent to the device 330 is determined.
  • the priority control unit 224 may change the distribution of the supplied power to each consumer 300 according to the remaining capacity of the shared storage battery 240 managed by the storage battery management unit 222.
  • the priority control unit 224 supplies power to the consumer 300 having a low priority when the remaining capacity of the shared storage battery 240 is close to full charge, and the priority is increased as the remaining capacity of the shared storage battery 240 is reduced.
  • the priority control is performed so that the power supply is stopped in order from the lowest customer 300.
  • the priority control unit 224 has a configuration in which the type of event (here, power failure) (for example, a power failure caused by a lightning strike and a power failure caused by an earthquake) can be detected through the communication network 112, for example.
  • the distribution of the power supplied to each consumer 300 may be changed.
  • the priority control unit 224 supplies power to the low-priority customer 300 in the case of a power failure due to lightning, and supplies power only to the high-priority customer 300 in the case of a power failure due to an earthquake. Priority control is performed as is done.
  • the shared storage battery 240 is shared by a plurality of consumers. Therefore, compared to a case where a storage battery is individually installed in each consumer, Economic burden can be reduced.
  • the priority control unit 224 performs priority control, so that the stored power of the shared storage battery 240 is preferentially supplied to the customer 300 that plays an important role in the customer group. can do.
  • the stored power of the shared storage battery 240 is transferred to an important consumer 300 such as a store designated as an evacuation center. It will be preferentially supplied. Therefore, in the above power supply system, an important consumer 300 among the plurality of consumers 300 sharing the shared storage battery 240 supplies sufficient power from the shared storage battery 240 in a state where the shared storage battery 240 has a sufficient remaining capacity.
  • the shared storage battery 240 is installed in the shared area 200, there is an advantage that the maintenance performance of the storage battery is excellent as compared with the case where the storage battery is installed in a specific dwelling unit. Further, in the power supply system of the present embodiment, the power supply control device (the shared device 220 and the customer device 330) is replaced with the shared storage battery 240 when the amount of power stored in the shared storage battery 240 falls below a predetermined threshold. A function of using the storage battery 371 may be provided.
  • the power supply control device when the remaining capacity of the shared storage battery 240 falls below the threshold value, the power supply control device causes the individual charge / discharge unit 372 to supply the customer 300 with the power stored in the individual storage battery 371 instead of the shared storage battery 240. Control. Specifically, when the remaining capacity of the shared storage battery 240 managed by the storage battery management unit 222 falls below a threshold value, the power supply control device controls the priority control unit 224 via the shared communication unit 223 and the customer communication unit 335. A shortage notification is sent to the unit 333. Receiving the shortage notification, the control unit 333 controls the individual charging / discharging unit 372 to discharge the power stored in the individual storage battery 371 to the distribution line 111.
  • the in-house distribution board 331 is provided with a power conversion unit (not shown), and the output of the individual storage battery 371 is converted into AC power by the power conversion unit and then sent to the distribution line 111.
  • the priority control unit 224 controls the charging / discharging unit 221 to stop discharging from the shared storage battery 240.
  • the power supply control device uses the individual storage battery 371 instead of the shared storage battery 240, the power stored in the individual storage battery 371 installed in the consumer 300 having a low priority is prioritized during a power failure of the commercial power supply 110. It can be used by highly demanding customers 300.
  • the power supply control device shares the output of the individual power generation facility 380. You may make it use for charge of the storage battery 240.
  • the individual power generation facility 380 is made of, for example, a solar cell or a fuel cell, and generates electric power for use with the load of the consumer 300 at normal times.
  • the individual power generation facility 380 is installed in the consumer 300 having the power storage facility 370, but may be installed in another consumer 300 that does not have the power storage facility 370.
  • the power supply control device controls the priority control unit 224 via the shared communication unit 223 and the customer communication unit 335.
  • a shortage notification is sent to the unit 333.
  • the control unit 333 controls the individual power generation facility 380 and sends the output of the individual power generation facility 380 converted into AC power by the power conversion unit in the in-house distribution board 331 to the distribution line 111.
  • the priority control unit 224 controls the charging / discharging unit 221 to charge the shared storage battery 240.
  • the power supply control device uses the output of the individual power generation facility 380 for charging the shared storage battery 240, so that the shared storage battery 240 is charged even if the remaining capacity of the shared storage battery 240 decreases during a power failure of the commercial power supply 110. Can do.
  • the charging time of the shared storage battery 240 can be shortened as compared with the case where the shared storage battery 240 is charged only by the output of the power generation facility 250 attached to the shared apparatus 220.
  • the power supply system may be configured such that the stored power of the individual storage battery 371 can be supplied from the consumer 300 having the individual storage battery 371 to the other consumer 300 without passing through the shared device 220.
  • the electric power necessary for the consumer group can be covered to some extent by the stored electric power of the individual storage battery 371.
  • stored priority information is provided in the consumer apparatus 330 side, even when the consumer apparatus 330 delivers and receives the electric power of the individual storage battery 371 without going through the shared apparatus 220, the consumer Priority control that distributes power according to the priority of every 300 can be performed.
  • the example which supplies the electrical storage power of the shared storage battery 240 to the consumer 300 only during the power failure of the commercial power supply 110 was shown, it is not restricted to this example.
  • the power supply system is not limited to the power failure of the commercial power supply 110, but may be any configuration that discharges the shared storage battery 240 when an event occurs in which the customer 300 has insufficient power supply.
  • the individual power generation facility 380 is used at night. An event may be generated when sufficient power cannot be generated.
  • the communication between the shared communication unit 223 and the customer communication unit 335 is not limited to the communication performed via the communication network 112 but may be performed via the distribution line 111 by, for example, power line carrier communication.
  • the power supply system of the present embodiment is implemented in that the priority information stored in the priority management unit 225 is automatically set based on the load 360 information of the customer 300 (hereinafter referred to as “load information”). It is different from the power supply system of form 3.
  • the shared device 220 acquires the load information from each customer 300, and the automatic setting unit 231 that automatically sets the priority information based on the load information acquired by the information acquisition unit 230. And have.
  • the information acquisition unit 230 automatically acquires the load information managed by the load management unit 332 of the customer device 330 via the customer communication unit 335 and the shared communication unit 223.
  • the information acquisition unit 230 acquires load information when the customer device 330 is newly connected or when the load information of the load management unit 332 is updated, and the acquired load information is prioritized for each customer 300.
  • the priority of the load 360 included in the load information represents a priority order throughout the consumer group regardless of the consumer 300 in which the load 360 is provided.
  • the load information is a table in which installed customers 300, addresses, (rated) power consumption, and priorities are associated with each load 360.
  • the priority management unit Stored in H.225.
  • Table 2 represents load information about a television set in the dwelling unit A, a cardiopulmonary apparatus, a lighting fixture, and a telephone set installed in the dwelling unit B.
  • the automatic setting unit 231 sets the priority of each customer 300 in the priority information based on the priority of each load 360 included in the load information. Specifically, the automatic setting unit 231 compares the priority of the load 360 with the highest priority among the consumers 300 among the plurality of consumers 300, and sequentially starts from the customer with the highest priority of the load 360. Set a higher priority. Thereby, a higher priority is set for the customer 300 including the load 360 having a higher priority. In the example of Table 2 above, the priority of the dwelling unit A including the cardiopulmonary apparatus having the priority “1” is set to “1”.
  • the priority for each consumer 300 used for priority control is automatically set according to the priority of the load 360 belonging to each consumer 300. Therefore, even when an event of a power failure occurs, the priority control unit 224 preferentially supplies the stored power of the shared storage battery 240 to the customer 300 including the high-priority load 360 such as a cardiopulmonary apparatus. can do.
  • the priority information is automatically set by the automatic setting unit 231, there is an advantage that the labor for setting the priority information can be saved.
  • the priority management unit 225 may store the priority of power supply for each load 300 of each customer 300 as priority information in addition to the priority of power supply for each customer 300.
  • the priority control unit 224 When the priority for each load 360 is stored as priority information, the priority control unit 224 performs priority control that distributes the stored power of the shared storage battery 240 for each load 360 based on the priority information. That is, the priority control unit 224 distributes the power stored in the shared storage battery 240 to each load 360 based on the above-described priority information when an event occurs in which the supply power is insufficient in the customer 300. I do. Specifically, the priority control unit 224 controls the power distribution control unit 334 of each consumer 300 so as to limit the power supplied from the shared storage battery 240 for each load 360.
  • the priority control unit 224 transmits a power distribution instruction for distributing the power of the shared storage battery 240 to the consumer device 330 of each consumer 300 via the communication network 112 from the shared communication unit 223.
  • the control unit 333 of the consumer device 330 controls the power distribution restriction unit 334 according to the power distribution instruction, and restricts the power supplied from the in-house distribution board 331 to the load 360.
  • the power distribution limiting unit 334 has a function of limiting power supply for each load 360. Note that the power distribution limiting unit 334 may handle the load 360 such as a plurality of lighting fixtures as one load circuit and limit the supply power for each load circuit.
  • the priority control unit 224 prioritizes the cardiopulmonary device of the dwelling unit A, the lighting device of the dwelling unit A, the telephone of the dwelling unit B, and the television of the dwelling unit A in this order.
  • the power distribution instruction to be sent to the consumer device 330 of each consumer 300 is determined so that the degree is low.
  • the priority control unit 224 allocates power (rated power consumption) in order from the load 360 with the highest priority within the range of the discharge power (the maximum power that can be discharged) of the shared storage battery 240.
  • the priority control unit 224 distributes the stored power of the shared storage battery 240 for each load 360 based on the priority information. It can be used effectively.
  • the power of the shared storage battery 240 is preferentially assigned to the load 360 with a high priority.
  • the power of the shared storage battery 240 is not preferentially assigned to the load 360 with a low priority. Therefore, the power supply system has an advantage that the stored power of the shared storage battery 240 can be prevented from being wasted by the load 360 having a low priority.
  • Other configurations and functions are the same as those of the third embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

L'invention concerne un système d'alimentation en énergie électrique comprenant : une unité de génération d'énergie qui est installée dans au moins un logement d'un consommateur partie d'une pluralité de logements de consommateurs formant un groupe de logements de consommateurs, et qui génère l'électricité utilisée par une charge dans le logement du consommateur; une unité commune de stockage d'électricité partagée par tous les logements de consommateurs du groupe de logements de consommateurs; et une unité de commande qui charge l'unité commune de stockage d'électricité avec l'énergie électrique excédentaire s'il existe un excédent d'énergie électrique générée par l'unité de génération d'énergie dans le logement consommateur.
PCT/IB2011/000343 2010-03-01 2011-02-22 Système d'alimentation en énergie électrique WO2011107846A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2010-044440 2010-03-01
JP2010044440A JP2011182555A (ja) 2010-03-01 2010-03-01 電力供給システム
JP2010073585A JP2011205871A (ja) 2010-03-26 2010-03-26 電力供給システム
JP2010-073585 2010-03-26

Publications (1)

Publication Number Publication Date
WO2011107846A1 true WO2011107846A1 (fr) 2011-09-09

Family

ID=44541694

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2011/000343 WO2011107846A1 (fr) 2010-03-01 2011-02-22 Système d'alimentation en énergie électrique

Country Status (1)

Country Link
WO (1) WO2011107846A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013169137A (ja) * 2012-01-17 2013-08-29 Keio Gijuku 電力ネットワークシステム
CN104104115A (zh) * 2013-04-01 2014-10-15 北京格林科电技术有限公司 一种多路高精度逆功率控制系统及逆功率保护控制方法
CN105305607A (zh) * 2015-12-05 2016-02-03 王长明 一种家庭用电电力采集系统
WO2016063948A1 (fr) * 2014-10-23 2016-04-28 日本電気株式会社 Système de stockage d'énergie réparti, procédé de commande de puissance, et programme
WO2016063947A1 (fr) * 2014-10-23 2016-04-28 日本電気株式会社 Système de stockage d'énergie réparti, procédé de commande d'énergie, et programme
WO2016063946A1 (fr) * 2014-10-23 2016-04-28 日本電気株式会社 Système d'accumulation de courant distribué, procédé de régulation de courant et programme
JP6140355B1 (ja) * 2016-12-07 2017-05-31 株式会社日立パワーソリューションズ 充電制御方法、充電制御装置および電力供給システム
CN107706912A (zh) * 2017-10-16 2018-02-16 四川航电微能源有限公司 机场多功能联合供电方法、控制系统
WO2018078802A1 (fr) * 2016-10-28 2018-05-03 三菱電機株式会社 Système de gestion d'énergie, dispositif de commande et procédé de gestion d'énergie
WO2019224931A1 (fr) * 2018-05-23 2019-11-28 三菱電機株式会社 Dispositif de gestion d'énergie

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002233077A (ja) * 2001-01-31 2002-08-16 Sumitomo Electric Ind Ltd 太陽光発電電力供給システム
JP2008011612A (ja) * 2006-06-28 2008-01-17 Osaka Gas Co Ltd 分散型発電機の制御システム
JP2008029104A (ja) * 2006-07-20 2008-02-07 Chugoku Electric Power Co Inc:The 蓄電池共用システム及び蓄電池共用方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002233077A (ja) * 2001-01-31 2002-08-16 Sumitomo Electric Ind Ltd 太陽光発電電力供給システム
JP2008011612A (ja) * 2006-06-28 2008-01-17 Osaka Gas Co Ltd 分散型発電機の制御システム
JP2008029104A (ja) * 2006-07-20 2008-02-07 Chugoku Electric Power Co Inc:The 蓄電池共用システム及び蓄電池共用方法

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013169137A (ja) * 2012-01-17 2013-08-29 Keio Gijuku 電力ネットワークシステム
CN104104115A (zh) * 2013-04-01 2014-10-15 北京格林科电技术有限公司 一种多路高精度逆功率控制系统及逆功率保护控制方法
JPWO2016063948A1 (ja) * 2014-10-23 2017-04-27 日本電気株式会社 分散蓄電システム、電力制御方法、及びプログラム
WO2016063948A1 (fr) * 2014-10-23 2016-04-28 日本電気株式会社 Système de stockage d'énergie réparti, procédé de commande de puissance, et programme
WO2016063947A1 (fr) * 2014-10-23 2016-04-28 日本電気株式会社 Système de stockage d'énergie réparti, procédé de commande d'énergie, et programme
WO2016063946A1 (fr) * 2014-10-23 2016-04-28 日本電気株式会社 Système d'accumulation de courant distribué, procédé de régulation de courant et programme
JPWO2016063946A1 (ja) * 2014-10-23 2017-04-27 日本電気株式会社 分散蓄電システム、電力制御方法、及びプログラム
CN105305607A (zh) * 2015-12-05 2016-02-03 王长明 一种家庭用电电力采集系统
WO2018078802A1 (fr) * 2016-10-28 2018-05-03 三菱電機株式会社 Système de gestion d'énergie, dispositif de commande et procédé de gestion d'énergie
JPWO2018078802A1 (ja) * 2016-10-28 2019-03-22 三菱電機株式会社 電力管理システム、制御装置及び電力管理方法
JP6140355B1 (ja) * 2016-12-07 2017-05-31 株式会社日立パワーソリューションズ 充電制御方法、充電制御装置および電力供給システム
JP2018093682A (ja) * 2016-12-07 2018-06-14 株式会社日立パワーソリューションズ 充電制御方法、充電制御装置および電力供給システム
CN107706912A (zh) * 2017-10-16 2018-02-16 四川航电微能源有限公司 机场多功能联合供电方法、控制系统
WO2019224931A1 (fr) * 2018-05-23 2019-11-28 三菱電機株式会社 Dispositif de gestion d'énergie
JPWO2019224931A1 (ja) * 2018-05-23 2021-02-12 三菱電機株式会社 電力管理装置

Similar Documents

Publication Publication Date Title
WO2011107846A1 (fr) Système d'alimentation en énergie électrique
JP7460701B2 (ja) 電力供給システムおよび電力供給方法
US11757304B2 (en) Versatile site energy router
JP2011182555A (ja) 電力供給システム
US11264807B2 (en) Renewable energy metering system
WO2012091113A1 (fr) Régulateur de courant
WO2011077221A2 (fr) Système d'alimentation électrique
JP2011130649A (ja) 電力供給システム
JP2014050233A (ja) 電力潮流制御システム、管理装置、プログラム
JP2011205871A (ja) 電力供給システム
JP7144950B2 (ja) 電力供給システム及び電力供給制御方法
JP3901025B2 (ja) 電力貯蔵システム
US11404877B2 (en) Hierarchical power control system
JP2000224769A (ja) 分散型蓄電システム
JP2013074760A (ja) 集合住宅電力システム及び制御装置
JP2013143814A (ja) 電力供給システム、電力供給制御装置、電力供給方法及びプログラム
AU2023203617A1 (en) Behind-the-meter system and method for controlled distribution of solar energy in multi-unit buildings
JP2003199249A (ja) 電力供給網の運用方法とそのシステム
KR101918625B1 (ko) 에너지 저장 장치를 이용하여 복수의 수용가를 대상으로 전력 서비스를 제공하는 시스템 및 방법
Ippolito et al. Economic feasibility of a customer-side energy storage in the Italian electricity market
JP2015015802A (ja) 電力管理システム及び制御装置
JP2020198696A (ja) 電力供給システム及び、電力管理方法
JP2000261980A (ja) 電源電力供給システム
WO2023095911A1 (fr) Système d'alimentation et procédé de commande
JP7290932B2 (ja) 電力管理方法、電力管理システム、及び引込盤

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11750247

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11750247

Country of ref document: EP

Kind code of ref document: A1