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WO2016185759A1 - Système de commande de dispositif et procédé de commande - Google Patents

Système de commande de dispositif et procédé de commande Download PDF

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Publication number
WO2016185759A1
WO2016185759A1 PCT/JP2016/056435 JP2016056435W WO2016185759A1 WO 2016185759 A1 WO2016185759 A1 WO 2016185759A1 JP 2016056435 W JP2016056435 W JP 2016056435W WO 2016185759 A1 WO2016185759 A1 WO 2016185759A1
Authority
WO
WIPO (PCT)
Prior art keywords
power
storage battery
air conditioner
unit
switching
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2016/056435
Other languages
English (en)
Japanese (ja)
Inventor
直 大倉
聡 竹嶋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
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
Application filed by Sharp Corp filed Critical Sharp Corp
Priority to JP2017519039A priority Critical patent/JP6762297B2/ja
Publication of WO2016185759A1 publication Critical patent/WO2016185759A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • H02J3/00—Circuit arrangements for AC mains or AC distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
    • H02J7/35—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering with light sensitive cells
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/50—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads
    • H02J2310/56—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads characterised by the condition upon which the selective controlling is based
    • H02J2310/62—The condition being non-electrical, e.g. temperature
    • H02J2310/64—The condition being economic, e.g. tariff based load management
    • 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
    • Y04S50/00—Market activities related to the operation of systems integrating technologies related to power network operation or related to communication or information technologies
    • Y04S50/10—Energy trading, including energy flowing from end-user application to grid

Definitions

  • the present invention relates to a device control system and a control method including a device that operates by switching between direct current power and alternating current power stored in a storage battery.
  • Patent Document 1 is known as a technique for reducing conversion loss caused by converting DC power generated by a solar cell into AC, and converting AC power into DC again using equipment.
  • Patent Document 1 discloses a power system in which DC power obtained from a DC power source is connected to an AC commercial power system via an inverter, and an output terminal of the inverter is connected to a DC load via a rectifier circuit.
  • a system is described in which an input end and an output end of a rectifier circuit are connected by a DC line, and DC power obtained from a DC power source is directly supplied to the DC load via the DC line.
  • Patent Document 1 when the power generation by the solar cell is sufficient, the power from the solar cell is supplied to the device. When the power generated by the solar cell is insufficient when operating the device, the rectified AC power is It comes to be supplied.
  • This invention is made in view of the said problem, Comprising: It aims at providing the system and method which can use efficiently the apparatus which can utilize the direct-current power and alternating current power stored in the storage battery. To do.
  • the present invention is provided in a DC power source, an electric device that operates by receiving power of a DC power source connected by DC and power of a power grid, and an electric device inside or outside the electric device,
  • a device control system including a switching unit that switches electric power for operating an electric device to either power of a DC power source or AC power network, and a control unit that controls switching of the switching unit based on a predetermined condition.
  • a solar power generation device is further provided, and the control unit controls the switching unit based on whether the device control system is in a power purchase state or a power sale state with respect to the power grid.
  • the present invention is provided inside or outside an electric device that operates by receiving the power of a DC power source connected by DC and the power of a power system network, and the power for operating the electric device is the power of the DC power source or the AC
  • a control method for a control unit that controls a switching unit that switches to one of the power of the power grid wherein the device control system including the electrical device and the photovoltaic power generation device is in a power purchase state or a power sale state with respect to the power grid Based on the above, the switching unit is controlled.
  • the present invention it is possible to provide a device control system and a device control method that efficiently use devices capable of using DC power and AC power stored in a storage battery.
  • FIG. 1 is a schematic configuration diagram of a device control system according to the first embodiment.
  • information is acquired from the air conditioner indoor unit 10, the air conditioner outdoor unit 11, a home appliance such as a TV, the power conditioner 22 connected to the embodiment or the storage battery 21, and the power conditioner 22.
  • the power monitor 23 can be displayed, the HEMS (Home Energy Management System) controller 30 capable of transmitting a remote control signal to the air conditioner 10, and the HEMS controller 30 and Ethernet (registered trademark).
  • the router 31 is provided.
  • the air conditioner indoor unit 10 and the air conditioner outdoor unit 11 are two devices that are usually called air conditioners.
  • the air conditioner indoor unit 10 when simply referred to as an air conditioner, Is included.
  • the air conditioner indoor unit 10 is operated by AC power supplied from the distribution board 24, and the air conditioner outdoor unit 11 is connected to DC power supplied from the storage battery and AC supplied via the air conditioner indoor unit 10. It is possible to operate by selecting power. Details of the air conditioner outdoor unit 11 will be described later.
  • the air conditioner indoor unit 10 has a function of communicating using a wireless LAN, and can communicate with the HEMS controller 30 via a router 31 having a wireless LAN function.
  • the power conditioner 22 is connected to the solar battery 20 and the storage battery 21, and stores the DC power generated by the solar battery 20 in the storage battery 21, or converts the DC power generated by the solar battery 20 into AC power. And a function of converting the AC power of the system into DC power and storing it in the storage battery 21. Moreover, the power of the main trunk of the house where the device control system of this embodiment is installed is monitored, and information on the direction and magnitude of the current is acquired. As a result, it is grasped whether power is purchased from the grid power network 25 (power purchase state) or a reverse power flow is being performed on the grid power network 25 (power sale state). Furthermore, it also has a function of measuring the electric power generated by the solar battery 20, a function of acquiring information on the storage amount of the storage battery 21 from the storage battery 21, and the like.
  • the power monitor 23 has a function of performing communication with the display unit, the user operation receiving unit, and the power conditioner 22, and the user confirms information acquired by the power conditioner 22 by using the power monitor 23. can do. Furthermore, the power monitor 23 can receive an operation from the user and can control the operation of the power conditioner 22 and the like. It also has a communication function via a wireless LAN, and can cooperate with an external device based on a control command conforming to ECHONET Lite.
  • the HEMS controller 30 is a control device that transmits a control command based on ECHONETLite to a device to be controlled (the air conditioner indoor unit 10 in the present embodiment).
  • the control command may be transmitted based on the determination of the HEMS controller 30, or the control command transmitted from the server may be relayed. At this time, the control command from the HEMS controller 30 is transmitted to the control target device via the router 31.
  • the HEMS controller 30 has a function of measuring the power consumption of each home appliance using a power measurement device (not shown) provided corresponding to each home appliance and transmitting information about the measured power consumption to the server 33. ing. For this reason, it becomes possible for a user to browse the information regarding the electric power of each household appliances stored in the server 33 using the portable terminal 32. Moreover, it can cooperate with the above-mentioned electric power monitor 23 using the control command based on ECHONETLite (trademark).
  • control command conforming to ECHONETLite includes a part that is open to the public and a part that is not open to the public.
  • the publicly disclosed part has the advantage that the control device of Company A can control the target device of Company B with the control device of Company A because the control command is made common regardless of the manufacturer.
  • the device is controlled by a control instruction from an unintended control device other than the HEMS controller 30.
  • a portion of the control command conforming to ECHONET Lite that is not disclosed to the public is used.
  • a signal permitting the operation using the electric power derived from the electric power is transmitted to the device to be controlled.
  • the router 31 is a general router and has a function of connecting to the Internet 40.
  • the wireless LAN Local Area Network
  • the HEMS controller 30 is connected by wire using Ethernet (registered trademark).
  • a typical mobile terminal 32 is a smartphone, and an application used for remote control and an application for browsing information on measured power operate by accessing the server 33 with a general Web browser of the mobile terminal 32. It may be provided as it is, or it may be dedicated. The user can use the remote monitoring system by inputting the user ID and password assigned to the user at the portable terminal 32. Since the communication between the portable terminal 32 and the server 33 is performed via the public telephone line 41 and the Internet 40, the user can also control from the outside. When the user is in the house, communication may be performed via the router 31 using a wireless LAN.
  • the server 33 includes an interface that communicates with the HEMS controller 30, and has a function of transmitting this to the HEMS controller 30 when a control command for the home appliance to be controlled is given from the portable terminal. Further, it has a function of receiving and storing information related to the power transmitted from the HEMS controller 30 and the power of the integrated power amount. In addition, an interface for communicating with the portable terminal 32 is also provided, and if requested by the portable terminal 32, such information is provided to the portable terminal 32.
  • the server and the server that provides the application using the Web browser to the mobile terminal 32 may be configured as separate servers and exchanged between the servers.
  • FIG. 2 is a block diagram of the air conditioner outdoor unit 11 that switches between the DC power of the storage battery used in the first embodiment and the power of the grid power network that is AC power.
  • the air conditioner outdoor unit 101 of this embodiment corresponds to the air conditioner outdoor unit 11 of FIG.
  • the air conditioner outdoor unit function unit 102 has a function as a general air conditioner outdoor unit, but does not include a part that converts AC power into DC power in a general air conditioner outdoor unit.
  • the switching unit 103 and the rectifier circuit 104 are responsible for this portion.
  • the air conditioner outdoor unit 101 operates with AC power and DC power.
  • the AC power of the grid power network 25 is input to the air conditioner outdoor unit 11 via the air conditioner indoor unit 10, and the input AC power is converted into DC by the rectifier 105 and input to one input terminal of the switching unit 103. Further, the other input terminal of the switching unit 103 is connected to the storage battery 21, and the DC power stored in the storage battery 21 is input as DC.
  • the switching unit 103 outputs one of the input powers to the air conditioner outdoor unit function unit 102 based on an instruction from the switching control unit 105.
  • the switching control unit is provided outside the air conditioner outdoor unit 101, but may be provided inside the air conditioner outdoor unit 101.
  • the switching unit 103 and the rectifier circuit 104 may be provided outside the air conditioner outdoor unit 11.
  • the switching control unit 105 is provided inside the air conditioner indoor unit 10 illustrated in FIG. 1, receives a control signal from the HEMS controller 30 by communication using a wireless LAN, and based on this control signal The switching control signal is transmitted to the switching unit 103 provided in the air conditioner outdoor unit 11 by wired communication.
  • the HEMS controller 30 and the switching control unit 103 which are the control units of the entire system are configured separately, the switching control unit 103 may be integrated with the HEMS controller 30.
  • the air conditioner outdoor unit 11 of the present embodiment uses the direct current power of the storage battery as the direct current power, it is possible to reduce such conversion loss.
  • / Kwh is an electricity bill system in which the electricity bill in the third time zone from 10:00 to 17:00 is 33 yen / Kwh.
  • the storage battery is fully charged in the first time zone and the power consumption in the third battery time is covered as much as possible with the power stored in the storage battery.
  • the power consumption in the second time zone may be supplied from the storage battery.
  • the first option is generally referred to as “no push-up power generation”, and surplus power is generated by the power generation of the solar cell 20, and power supply from the storage battery to the load is prohibited while selling power. Is. As a result, the reversely flowed power becomes surplus power obtained by subtracting private consumption from power generation by solar power generation. Since this is the same condition as a home where only a solar power generation device is installed and no storage battery is installed, the unit sales price of power is the same as a home where only the solar power generation device is installed and no storage battery is installed.
  • the second option is generally referred to as “with push-up power generation”, and surplus power generated by the power generation of the solar battery 20 is generated. It is possible to supply power. If all the power consumption of the device that consumes power is supplied from the storage battery 21, all the power generated by the solar battery 20 can be used for power sale. For this reason, since the amount of electric power sold by the solar cell increases, the unit sales price of electric power is set lower than the above-mentioned condition of “no boost power generation”.
  • FIGS. 1, 2 and 3 are model cases of a sunny summer day. In this model case, it is assumed that the power supply of the air conditioner is always on.
  • the storage battery 21 is charged during the first time period described above and is fully charged. In addition, it is assumed that the storage battery 21 has a sufficient capacity for supplying electric power necessary in the present embodiment. At 7 o'clock, the first time period ends and the second time period ends, so the unit price of the electricity bill increases. For this reason, it is possible to use electric power with a lower electric power unit price by using electric power stored in the storage battery 21 rather than obtaining electric power used for the operation of the air conditioner from the grid power network 25. Therefore, when the HEMS controller 30 changes from the first time zone to the second time zone (S102), the HEMS controller 30 transmits a signal permitting control using DC power to the switching control unit 105. The switching control unit 105 that has received this signal switches the switching unit 103 so that DC power is supplied (S104). Thereafter, the electric power stored in the storage battery is supplied to the air conditioner outdoor unit 11 as a direct current.
  • the HEMS controller 30 confirms whether or not it is in a power purchase state from the grid power network 25 before switching, confirms that it is in a power purchase state (S103), and permits the switching.
  • AC power from the grid power network 25 is supplied to the air conditioner outdoor unit 11.
  • the reason for performing such control is to prevent the above-described boosted power generation. It should be noted that switching may be performed when the purchased power is equal to or less than a predetermined magnitude, not immediately before switching from the power purchase state to the power sale state, so as not to cause boosted power generation.
  • the switching unit 103 may be switched after a predetermined time or more has elapsed.
  • the upper limit is set lower than the power consumed by the AC power for the power consumed by the DC power, and the specification is such that the AC power is switched to the DC power when the power is less than this power consumed.
  • the predetermined amount of purchased power the maximum power consumption at which the AC power of the air conditioner outdoor unit 11 can be switched to the DC power, that is, the maximum power consumption at the DC power of the air conditioner outdoor unit 11. It is good.
  • the switching unit 103 may be switched after a predetermined time or more after the predetermined size or more is reached.
  • the HEMS controller 30 sends a signal prohibiting the operation using the DC power of the storage battery to the switching control unit 105. Send.
  • the switching control unit 105 that has received this signal switches the switching unit 103 so that AC power is supplied (S111). Thereafter, AC power from the grid power network 25 is supplied to the air conditioner outdoor unit 11.
  • Step 105 S105
  • Step 111 S111
  • an air conditioner that can switch between and use the DC power of the storage battery 21 and the power of the grid power network 25 that is AC power is suitable for the electricity rate system and the surplus power purchase system. Can be used.
  • the DC power of the storage battery 21 with the DC power as it is in the equipment, the number of conversions between the DC power and the AC power can be reduced, and the power stored in the storage battery can be used more effectively.
  • necessary information is transmitted from the power conditioner 22 to the HEMS controller 30, but the HEMS controller 30 may be configured to acquire the information of the power conditioner 22.
  • the power converter 22 and the HEMS controller 30 communicate with each other. However, when described in detail in the configuration of the present embodiment, communication is performed between the power converter 22 and the power monitor 23, and the HEMS controller. Communication is performed between 30 and the power monitor 23. If the communication function of the power monitor 23 is provided in either the power controller 22 or the HEMS controller 30, it is obvious that the power monitor 23 can be omitted.
  • the HEMS controller 30 has been described so as to play a central role in the above-described control.
  • the server 33 may be controlled in place of the HEMS controller 30.
  • Second Embodiment The basic configuration of this embodiment is the same as that of the first embodiment. Then, a control method of the appliance control system in the home that employs the fee system described in the first embodiment and selects “no push-up power generation” will be described.
  • the difference in configuration from the first embodiment is that the HEMS controller 30 acquires information on the remaining capacity of the storage battery 21 in addition to grasping the state of whether the power is being sold or purchased.
  • the storage battery 21 knows its own remaining capacity, and the HEMS controller 30 acquires information on the remaining capacity of the storage battery 21 via the power monitor 23.
  • a certain percentage of the storage capacity of the storage battery 21 is not discharged during a non-power failure, and this ratio is referred to as a set remaining amount.
  • the purpose of this is to secure electric power that can operate the devices in the home at a minimum in the event that the AC wiring network 25 fails.
  • the value of the set remaining amount can be arbitrarily set by the user, and may be set to 0% or 100%. However, if it is set to 0%, the storage battery may be empty during a power failure. Conversely, if it is set to 100%, it becomes impossible to use the electric power stored in the air conditioner outdoor unit 11 or the like described in the present embodiment at the time of non-power failure.
  • FIG. 1, FIG. 2 and FIG. 4 as a model case of a certain summer sunny day.
  • the power supply of the air conditioner is always on.
  • the storage battery is charged and fully charged during the first time period described above. Then, it is assumed that the remaining amount of the storage battery reaches the above-mentioned set remaining amount after about 20:00.
  • the operation up to 20:00 is the same as that of the first embodiment, so the explanation is omitted.
  • the air conditioner outdoor unit 11 is operating with the DC power of the storage battery 21.
  • the HEMS controller 30 periodically acquires information on the remaining capacity of the storage battery (S205, S209), and detects that the remaining capacity of the storage battery has reached the set remaining capacity based on the information acquired after 20:00. To do.
  • the HEMS controller 30 that has detected this transmits a signal that prohibits the switch control unit 105 from operating using power derived from DC power. Receiving this, the switching control unit 105 transmits a signal prohibiting the operation using the DC power of the storage battery to the switching control unit 105.
  • the switching control unit 105 that has received this signal switches the switching unit 103 so that AC power is supplied (S213). Thereafter, AC power from the grid power network 25 is supplied to the air conditioner outdoor unit 11.
  • the HEMS controller 30 sends a signal prohibiting the switching control unit 105 to operate using the DC power of the storage battery. Transmit to the switching control unit 105.
  • a new prohibition signal may not be transmitted.
  • the difference in configuration from the first embodiment is that the HEMS controller 30 monitors the communication status between a plurality of devices in addition to grasping the status of whether the power is being sold or purchased, and for switching control of the air conditioner outdoor unit 11. It is a point to reflect.
  • the HEMS controller monitors communication between the HEMS controller 30 and the power monitor 23.
  • the switching control unit 105 monitors communication between the switching control unit 105 and the HEMS controller 30.
  • the HEMS controller 30 monitors the communication between the HEMS controller 30 and the power monitor 23 (S302), and when the communication with the power monitor 23 is not possible for a certain period of time, the switching control unit 105 receives the DC power of the storage battery. A signal prohibiting the control using is transmitted. The switching control unit 105 that has received this signal switches the switching unit 103 so that AC power is supplied (S303). Thereafter, AC power from the grid power network 25 is supplied to the air conditioner outdoor unit 11.
  • the HEMS controller 30 obtains the information on the power generation state of the solar battery panel 20 and the information on the voltage, which may be used for the determination of switching in the embodiment described later, the boost power generation is performed. Will be prevented.
  • the switching control unit 105 monitors the communication between the switching control unit 105 and the HEMS controller 30 (S312), and when the communication with the HEMS controller 30 cannot be performed for a certain time, AC power is supplied to the switching unit 103. (S313). Thereafter, AC power from the grid power network 25 is supplied to the air conditioner outdoor unit 11.
  • the switching unit 103 may be switched directly from the HEMS controller 30, but in this case, the above-described second communication monitoring function is provided in the switching unit 103.
  • ⁇ Fourth embodiment> The basic configuration of this embodiment is the same as that of the first embodiment. The difference from the first embodiment is that the HEMS controller 30 acquires weather forecast information.
  • the HEMS controller 30 accesses the server 33 and has already acquired the weather forecast information for today (S402).
  • the storage battery is charged during the first time period described above and is fully charged. However, it is assumed that there is not enough storage capacity to cover all the power consumption of the electrical equipment through the second time zone and the third time zone.
  • the present embodiment is the same as the first embodiment. Therefore, the case where the weather forecast is rainy (No in S403) will be described below.
  • the HEMS controller 30 that has acquired a forecast that today's weather is raining transmits a signal prohibiting control using the DC power of the storage battery to the switching control unit 105.
  • the switching control unit 105 that has received this signal switches the switching unit 103 so that AC power is supplied (S421). Thereafter, AC power from the grid power network 25 is supplied to the air conditioner outdoor unit 11.
  • the power supply from the grid power network 25 is performed even in the first time zone, it may be determined that there is no change in the power that is the supply source and the control signal is not transmitted.
  • the power is purchased from the grid power network 25 in the third time period. Need arises. This is because the power purchased at the second time zone can be used at a lower power unit price than the power purchased at the third time zone.
  • the HEMS controller 30 transmits a signal permitting control using DC power to the switching control unit 105.
  • the switching control unit 105 that has received this signal switches the switching unit 103 so that DC power is supplied (S424). Thereafter, the electric power stored in the storage battery is supplied to the air conditioner outdoor unit 11 as a direct current.
  • the weather actually changes and there is solar radiation and power generation by the solar battery 20 may occur, according to the power purchase state and the power sale state as in the first embodiment. It may be configured to switch between direct current power supply and alternating current power supply, and information on the remaining amount of the storage battery may be confirmed as in the second embodiment (S425 to S432).
  • the HEMS controller 30 sends a signal prohibiting the switching control unit 105 to control using the DC power of the storage battery. Transmit (S426, S430).
  • the switching control unit 105 that has received this signal switches the switching unit 103 so that AC power is supplied (S433). Thereafter, AC power from the grid power network 25 is supplied to the air conditioner outdoor unit 11.
  • the basic configuration of this embodiment is the same as that of the first embodiment.
  • the difference in configuration from the first embodiment is that the HEMS controller 30 obtains sunrise and sunset information and prohibits the operation of the air conditioner outdoor unit 11 by DC power during a time when solar radiation can be expected.
  • the HEMS controller 30 acquires information about the sunrise and sunset times from the server 33, and prohibits the operation of the air conditioner outdoor unit 11 by DC power during the time when solar radiation can be expected. That is, the HEMS controller 30 transmits a signal permitting feeding of direct current to the switching control unit 105 during a time when power generation by the solar battery 20 cannot be expected. The switching control unit 105 that has received this signal switches the switching unit 103 so that DC power is supplied.
  • information regarding sunrise and sunset times and weather information for the day may be acquired in association with each other and used for the above control.
  • the operation of the air conditioner outdoor unit 11 by DC power supply is permitted even during the sunset time from sunrise. You may do it.
  • the time in the device control system of this embodiment needs to be accurately maintained. For example, consider a case where the clock of the HEMS controller 30 is one hour ahead of the accurate time, and the HEMS controller 30 determines that the sunset time is based on its own clock and permits the operation of the air conditioner outdoor unit 11 by direct current power supply. . At this time, since the actual sunset time is one hour later, there is still solar radiation, and the solar cell panel 20 has power generation. Therefore, depending on the balance between the power generation amount and the load, the power generation may be boosted. .
  • NTP network time protocol
  • the clock of the device control system may be changed only by NTP, and the change by the user may not be accepted.
  • the basic configuration of this embodiment is the same as that of the first embodiment.
  • the difference in configuration from the first embodiment is that the HEMS controller 30 acquires information about the power generation state of the solar cell panel 20 from the power conditioner 22, and when the solar cell panel 20 generates power, the air conditioner outdoor unit 11. This is a point of prohibiting the operation by direct current power.
  • the HEMS controller 30 acquires information related to the power generation of the solar cell panel 20 from the power conditioner 22 and prohibits the operation of the air conditioner outdoor unit 11 by DC power when there is power generation. That is, the HEMS controller 30 transmits a signal permitting feeding of direct current to the switching control unit 105 when there is no power generation by the solar battery 20. The switching control unit 105 that has received this signal switches the switching unit 103 so that DC power is supplied.
  • examples of the information about the power generation state of the solar cell panel 20 include information on the input power and input voltage of the power conditioner 22 (output power and output voltage of the solar cell panel 20) or output power.
  • the control may be performed based not only on the information about the power generation state of the solar battery panel 20 but also on the acquired sunrise time as shown in the fifth embodiment.
  • the solar radiation 20 is stable at a solar radiation amount that is weaker than the solar radiation to the extent that the output of the solar cell 20 can be obtained, the solar cell 20 at a later time. It may be determined that the state of the boosted power generation is not caused by this power generation, and the operation by the DC power of the air conditioner outdoor unit 11 may be permitted.
  • the DC power supply should be prohibited when the power generation of the solar panel 20 exceeds the certain level. It may be.
  • the actual power generation amount of the solar cell panel 20 is monitored and used for control, for example, there is no or very little power generation in the solar cell panel 20 during the day due to rain, and there are fluctuations in power generation and power consumption.
  • the operation of the air conditioner outdoor unit 11 by direct current power supply may be permitted.
  • the power conditioner 22 originally has a function of monitoring the generated power, and this can be realized by appropriately determining a control method without introducing new equipment or the like.
  • the explanation has been made using the storage battery as the DC power supply, but other DC power supply such as a fuel cell may be used.
  • air conditioner indoor unit air conditioner
  • air conditioner outdoor unit air conditioner
  • 20 solar battery 21 storage battery
  • 22 power conditioner 23 power monitor
  • 24 distribution board 25 grid power network
  • 30 HEMS controller 31 router, 32 mobile Terminal, 33 server, 40 internet, 41 public telephone line network.

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

La présente invention concerne un système de commande de dispositif qui est connecté à un réseau électrique et qui est pourvu : d'une alimentation électrique en courant continu (CC) ; d'un dispositif électrique qui fonctionne par réception d'énergie électrique provenant de l'alimentation CC connectée au moyen d'un courant continu et d'énergie électrique provenant du réseau électrique ; d'une unité de commutation qui est disposée à l'intérieur ou à l'extérieur du dispositif électrique et qui commute l'énergie électrique destinée à faire fonctionner le dispositif électrique soit vers l'énergie électrique provenant de l'alimentation CC soit vers l'énergie électrique provenant d'un réseau en courant alternatif (CA) ; et d'une unité de commande pour commander la commutation par l'unité de commutation sur la base d'une condition prescrite. Selon le système de commande de dispositif, un dispositif apte à utiliser de l'énergie CC et de l'énergie CA peut être utilisé efficacement.
PCT/JP2016/056435 2015-05-20 2016-03-02 Système de commande de dispositif et procédé de commande Ceased WO2016185759A1 (fr)

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CN113570782A (zh) * 2021-07-26 2021-10-29 珠海格力节能环保制冷技术研究中心有限公司 计费管理方法、装置和系统

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JP2011130618A (ja) * 2009-12-18 2011-06-30 Panasonic Corp 電力制御装置および電力制御方法
WO2011141798A2 (fr) * 2010-05-11 2011-11-17 パナソニック電工株式会社 Appareil de régulation d'énergie électrique et système de connexion au réseau le comprenant

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018196231A (ja) * 2017-05-17 2018-12-06 三菱電機株式会社 電力制御装置
CN113570782A (zh) * 2021-07-26 2021-10-29 珠海格力节能环保制冷技术研究中心有限公司 计费管理方法、装置和系统

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