JP2007020260A - Power supplying system and power supplying service method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a power supplying service that uses a storage cell and a home network. <P>SOLUTION: Power is generated by a power supplier, and connected and distributed to a watthour meter 100 at each residence. A conversion section 201 is connected to the watthour meter. The conversion section is connected to an inside household distribution panel 300. The storage cell 202 is connected to the conversion section. Lamp lines 40n are routed from the home distribution panel inside the household and connected to appliances 50n, such as household electrical appliances and lighting fixtures via wall outlets within rooms. Internet line 600 is connected to the residence, and transmitted by ADSL and FTTH. A termination apparatus 700 and a router 800 for terminating the ADSL and the FTTH are always connected to the Internet at the residence, and are connected to a group of servers 1200 on the Internet. An apparatus controller 900 is connected to the router by a datalink 1100. The apparatus controller 900 and the apparatuses 50n are connected by control links 100n. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a power supply system for home commercial power and a method of power supply service.

Conventionally, as a device for supplying a commercial power source for home use, there are a solar cell using natural energy and a fuel cell using city gas or hydrogen as fuel, and some of them have already been put into practical use. Also, as disclosed in Non-Patent Document 1 and Non-Patent Document 2, technologies and services such as ESCO, BEMS, and HEMS that reduce power consumption in homes and buildings by using devices and communication control are proposed. And some have been put to practical use.
“ENEX 2002 Display Panel”, [online], January 2002, [Search June 28, 2005], Internet <URL: http://www.eccj.or.jp/enex2002/panel/index.html > Hidetoshi Nakagami, “BEMS / HBMS Issues and Future Trends”, [online], April 5, 2003, Industrial Industry Council, [Search June 28, 2005], Internet <URL: http: //www.meti.go.jp/committee/downloadfiles/g40405a70j.pdf “Current Status and Future of Electricity Liberalization”, [online], April 2003, Marubeni Group magazine “M-SPIRIT” No. 18, [Search June 28, 2005], Internet <URL: http://www.marubeni.co.jp/useful/word/18.html Reishi Takeishi, “Trends and Challenges of Electricity Liberalization”, [online], October 2000, Fujitsu Research Institute Economic Review Vol.4 No.4, [Search June 28, 2005], Internet <URL: http : //www.fri.fujitsu.com/open_knlg/review/rev044/01takeishi.pdf

  When using solar cells to reduce power consumption at home and reduce electricity bills, power is consumed by the time when solar power is generated or by returning the remaining electricity to the power line without consuming it. Made by the company purchasing the returned electricity. In this case, the power saving effect and the surplus power sales effect are not steady depending on the weather, season, and time zone, but partially compensate for the electricity bill charged by a metered amount. In solar power generation, there is also a power generation disparity depending on the area and annual solar irradiation time.

  A fuel cell can supply power constantly, but the devices currently in practical use are based on the premise that city gas is used, and the actual usable area is limited. In addition, if hydrogen is used as fuel, it is possible to escape from regional limitations, but there is currently no social infrastructure to supply hydrogen as fuel, and it was technically established until social infrastructure was developed. It is not practical as well.

  ESCO, BEMS, and HEMS that reduce the electricity bill by monitoring the power consumption of equipment used in business establishments and homes to save electricity. In HEMS targeted at homes, it is estimated that it is about 10% as shown in Non-Patent Document 1, and it is not possible to obtain a great effect in terms of money.

  On the other hand, as described in Non-Patent Document 3, the electric power supply market is gradually liberalized, and it is possible that companies other than existing electric power companies can supply electricity that can be used at home after 2007. In that case, the new power supply company can supply power from various power generators, but the supplied power may cause a large rate fluctuation in time as described in Non-Patent Document 4. . However, there is a 30-minute regulation on the same amount of electricity, so even if you purchase cheaper electricity, there is currently no way to consume and store it.

  1st invention is an electric power supply system, Comprising: It connects between the storage battery charged with the electric power from an electric power line, and a watt-hour meter and a domestic switchboard. It is characterized by comprising a conversion unit for converting to AC power, and means for controlling the charging / discharging operation of the storage battery in conjunction with a power rate supplied from a power line.

  A second invention is the power supply system of the first invention, having a controller capable of communicating with the conversion unit, a function of measuring the control and state of the device, and being connected to the controller A communication device; means for collecting power consumption and state of the device; and means for transmitting to the controller by the communication device; and means for transmitting the state of the storage battery and the state of power supply to the controller. Means for creating a command for controlling the device in conjunction with the power consumption and state of all the devices connected to the storage battery, the state of the storage battery, and the state of power supply, and transmitting the command to the device; Means for controlling the operation of the storage battery, and means for creating a command for controlling the operation of the storage battery and the conversion unit in conjunction with the power consumption and state of all connected devices, the state of the storage battery, and the state of power supply When Sends a command to the device, characterized in that it comprises means for controlling the operation of the storage battery and the controller.

  A third invention is the power supply system of the second invention, wherein the controller to which a communication line is connected, the communication line is the Internet, and is connected to the control unit via the communication line. The server includes a power consumption amount and state of the device, and the conversion unit includes means for transmitting the state of the storage battery and the state of power supply to the server.

  A fourth invention is a power supply system according to the second or third invention, wherein the controller and the device communicate with each other by an Echonet protocol.

  A fifth invention is the power supply system according to any one of the second to fourth inventions, wherein a specific low power radio is used for connection between the controller and the device.

  A sixth invention is a power supply system according to any one of the second to fifth inventions, wherein high-speed power line communication is used for connection between the controller and the device.

  A seventh invention is the power supply system according to any one of the second to sixth inventions, wherein power line communication is used for connection between the controller and the converter.

  An eighth invention is the power supply system according to any one of the second to seventh inventions, wherein the controller has a conversion function of Internet protocol and Echonet protocol, and Ethernet (registered trademark), specific power saving It has a function of interconnecting wireless and power line communications.

  A ninth invention is the power supply system of the first to eighth inventions, wherein the conversion unit has a function of connecting to a solar cell or a fuel cell, and the storage battery is supplied with power supplied from the solar cell and the fuel cell. The method includes the step of charging the battery.

  A tenth aspect of the invention is a power supply service premised on the adoption of the power supply systems of the first to ninth aspects of the invention, and uses the time difference between the usage charges of electricity supplied from the power generation company, and the time when the power charges are low Means for charging the storage battery in the belt, means for converting and supplying the electricity charged in the storage battery to commercial alternating current, and means for monitoring the power consumed by the device during a time period when the power rate is high In conjunction with a sensor arranged in the house, the means for controlling each of the devices and the operation between the devices are linked to control the power consumed in the house, and against the discharge of the storage battery And a means for controlling so as to achieve an optimum total power consumption.

  In an eleventh aspect of the invention, the step of purchasing according to the hourly fluctuation of the electricity usage fee supplied from the power generation company, the step of controlling and charging the storage battery in conjunction with the purchase of the power, and according to the power rate , Converting the electricity charged in the storage battery into commercial alternating current, supplying it, monitoring the power consumed by the device, and a sensor disposed in the house, And a step of controlling the power consumed in the house by linking the operation between the devices and controlling the power consumption so as to obtain an optimum total power consumption for the discharge of the storage battery. To do.

  A twelfth aspect of the present invention is the power supply method of the tenth or eleventh aspect of the present invention, wherein the storage battery is set so that the amount of charge of the storage battery does not become below a certain level in conjunction with power consumption by the device during a high power charge period. The step of charging intermittently is provided.

  A thirteenth aspect of the present invention is the power supply method of the eleventh aspect of the present invention, wherein when there is no room for power to be supplied by the power generation company, the step of stopping the storage function of the storage battery, and the surplus power generated by stopping the storage It has the step to trade.

  The fourteenth invention is the power supply method according to the eleventh invention, wherein when there is no room for power supplied by the power generation company, the step of controlling the storage battery and sending the discharge power of the storage battery to the power transmission side, and the transmitted power It has the step which trades.

  A fifteenth aspect of the present invention is the power supply method according to any one of the tenth to fourteenth aspects of the present invention. It is characterized by comprising a step of collecting at a fixed amount.

  A sixteenth aspect of the present invention is the power supply method according to any one of the tenth to fifteenth aspects of the present invention, wherein the step of monitoring the power consumption of each device is replaced with a device that consumes a large amount of power. The method includes a step of reflecting the fixed amount of power.

  According to the first invention, a night discount is applied to the electricity rate, and the setting varies depending on the power generation company. For example, in the case of TEPCO, late-night electricity is set to a rate of 1/3 to 1/4 of the daytime. Has been. According to the present invention, it is possible to contract a midnight power charge, charge the storage battery at the time when this is applied, and reduce the power charge by using the power charged in the storage battery in the daytime when the charge is high. . In addition, the amount of power supplied by the power generation company increases during the day and decreases during the night. As a result, the amount of power generation can be reduced. This leads to the suppression of greenhouse gas emissions.

  According to the second invention, the state data of the storage battery, the conversion unit, and the device to be supplied with power is collected in the controller. If the devices operate without mutual cooperation, the power consumed by the entire device fluctuates very randomly and a large peak appears. Such a peak has a heavy burden on the power supply by the storage battery, so smoothing the overall power consumption by controlling the operating state of the equipment from the collected information is a stable power supply, the appropriate size of the storage battery It is very effective for securing the life and lifetime. In addition, by making the communication function of the device an independent device, it is possible to collect and control data from a device that does not incorporate the communication function. In particular, since most of the connected devices do not have a communication function, status data collection, and output function at the beginning of the service, an independent communication device is indispensable.

  According to the third invention, it is possible to create control commands in the control unit based on the state of the device, the state of the storage battery, and the state of power supply, but by collecting them by the communication line and processing them by the server, The configuration of the controller is simplified, and the flexibility when adding a new function is improved. In addition, data that does not need to be processed in real time can be processed offline on the server side. The linkage between the controller's communication function and the server makes it possible to expand the processing function, improve the capability, and simplify the controller. In particular, at the beginning of the power supply service described after the tenth invention, which will be described later, there are almost all existing devices that supply power, and data from the devices is consumed as much as possible. It collects power via an external communication device. However, as this service becomes widespread, it is considered that various data can be output and functions can be controlled by compatible devices. Therefore, the expandability of the system can be ensured by collecting data by the communication function and generating control data based on the data.

  According to the fourth invention, the device is controlled by the control data from the controller, but the Echonet protocol is a protocol created for the purpose of controlling the device, and is suitable for such control.

  According to the fifth aspect, by using the specific low-power radio for connection between the control device and the device, it becomes possible to configure a network free of layout without wiring. This is particularly effective when introducing this system and power supply service into an existing household. In addition, although the communication used to control the power consumption of the device is less meaningful when the power consumption is large, the specific low-power radio has a very low power consumption and is useful as a communication for power control.

  According to the sixth aspect of the invention, by using high-speed power line communication for connection between the control device and the device, it becomes possible to construct a network without wiring and without layout. This is particularly effective when introducing this system and power supply service into an existing household. In addition, high-speed power line communication has a strong affinity with Ethernet communication, and is used for connection of AV devices that require high-speed communication, so that not only device control but also video data and Web data transmission can be performed. Combined use is also possible.

  According to the seventh aspect of the invention, the controller is a storage battery indoors, and the conversion unit is installed outdoors, so that it takes time for wiring in the case of installation in an existing house. High-speed power line communication eliminates the need for new wiring, and enables high-speed and high-reliability communication between the controller and the conversion unit. In addition, since the conversion unit and the storage battery separate the external power line from the indoor power line, there is an effect of preventing the signal of the high-speed power line communication from leaking outdoors.

  According to the eighth invention, devices connected to the controller are added and updated. It is uncertain which method is used from the fourth to seventh protocols and communication methods. In addition, it is possible to select a communication method for connecting the controller and the Internet. For this reason, an interconnection function and a protocol conversion function that can cope with any combination of connections are required.

  According to the ninth aspect, by adopting a solar cell or a fuel cell as a power supply source to the power supply system, it is possible to further reduce the power charge.

  According to the tenth aspect of the present invention, by adopting this system, it is possible to use the time shift of power consumption and the time difference between power charges to reduce the power charges. If this service is further developed to provide a service with a fixed power charge, if the user psychology is a fixed charge, it will be wasted without worrying about power consumption. Therefore, it is possible to provide a power supply service within a fixed usage fee by monitoring the user's behavior and usage state with a sensor and eliminating the wasteful power usage from the usage state of each device.

  According to the eleventh aspect, the generated power must be consumed in the power supply. On the other hand, since the amount of power generation cannot be easily controlled, time fluctuations occur in the power rate. In response to this time fluctuation of the charge, it is possible to reduce the power charge by purchasing power in a cheap time zone. Furthermore, by combining with control of a device that consumes power, it is possible to consume power more efficiently.

  According to the twelfth invention, it is possible to extend the life of the storage battery by keeping the charge amount of the storage battery above a certain level.

  According to the thirteenth aspect, when the power supplied by the power generation company runs out of power, the electricity fee becomes high in the liberalized power market. On the other hand, the power generation company is responsible for power supply and cannot be in short supply. Therefore, the power consumption can be reduced by stopping the power consumption at home adopting the present invention and having the power generation company repurchase surplus power generated by completely switching to the supply of the storage battery, Stable power supply is also possible.

  According to the fourteenth invention, since the power generation company is responsible for supplying power, the supply cannot be insufficient. Therefore, it is possible to reduce the electricity bill by discharging the power stored in the storage battery at home adopting the present invention and having the power generation company repurchase the power returned to the power transmission side, and the stability of power Supply is also possible.

  According to the fifteenth aspect of the present invention, by reducing the power purchase amount from the power generation company and the power charge generated by the hourly power transaction, by estimating the power charge set in advance for each household device and controlling the device Even if power is collected at a flat rate from the actual power consumption that is held to a certain extent, profits can be generated and management is established.

  According to the sixteenth aspect of the invention, it is possible to reduce the electricity bill by converting a device with large power consumption into an energy saving device, but the electricity fee is paid for the total power consumption of all the devices. There is not much to realize the effect of reducing the electricity charge of a single device. In the present invention, it is possible to clearly realize the financial merit of replacement of equipment and to expect a psychological effect of promoting replacement of equipment.

  Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1)
FIG. 1 is an embodiment according to the present invention, and shows an embodiment in a detached house adopting the present invention.

  The electric power generated at the power supplier's power plant is distributed and connected to the electricity meter 100 of each house. A conversion unit 201 is connected to the watt-hour meter 100, and an output of the conversion unit is connected to a home switchboard 300. A storage battery 202 is connected to the conversion unit 201. Further, it is possible to connect the solar cell 203 or the fuel cell 204 to the conversion unit 201.

  An electric wire 40n is wired from the home switchboard 300 to each room in the home, and a device 50n such as a home appliance or a lighting fixture is connected via a wall outlet in the room. On the other hand, an Internet line 600 is connected to the house. The Internet line is transmitted by ADSL or FTTH. A termination device 700 that terminates ADSL and FTTH and a router 800 are connected to the house, and are always connected to the Internet and connected to a server group 1200 on the Internet, so that the server functions can be used. Further, the device controller 900 is connected to the router 800 by a data link 1100, and the device controller 900 and each device 50n are connected by a control link 100n.

  Commercial AC power is transmitted from the power plant through the power grid. This is a watt hour meter 100 installed in each house, and the power used per hour is measured and stored. The output of the watt hour meter 100 is input to the conversion unit 201 and converted from alternating current to direct current, and the converted direct current power is input to the storage battery 202 and stored. The charging / discharging to the storage battery 202 has the characteristics shown in FIG. 2, that is, the storage battery 202 is charged with the maximum capacity in the nighttime when the power consumption is generally low. Charging is completed in the morning when the use of electricity starts, and thereafter, the power of the storage battery 202 is discharged according to the use of electric power at home, and the converter 201 converts the direct current into a commercial alternating current and supplies it to the house.

  As shown in FIG. 2, the electricity charge varies with time. For example, it is set cheaply at night and midnight when the usage amount is low, and is set high during the daytime when the usage amount is high. By storing electricity at night and discharging it in the daytime, it is possible to use power during a cheap time all day, and as a result, it is possible to compress the electricity bill to be paid. Furthermore, by shifting the power consumption over time, the overall power consumption can be leveled, leading to a reduction in the size of the power generation system designed with peak power.

  The house is divided by the distribution board 300 to the power line 40n in the house, and the device 50n is connected to each light line 40n to be supplied with power. Usually, the use of electricity in a house has a time variation as shown in FIG. For example, equipment that is always energized, such as a refrigerator, and power consumption that is constantly consumed due to the standby power of equipment, cooking preparations used for meal preparation, meal time, equipment such as TV, and night lighting In this way, the power is classified into two types of power that have a large peak in the time zone. Due to the characteristics of the storage battery 202, such a large fluctuation in power consumption increases the load, which may lead to an increase in capacity and a shortened life in order to cope with the load fluctuation. Therefore, the device 50n in the house is connected to the device controller 900 by the control link 100n. The device controller 900 is also connected to the conversion unit 201 via a control link 1003. Through the control link, the device controller 900 collects data relating to the state of the storage battery and the state of each connected device 50n. Further, the state of the storage battery is collected from the conversion unit 201. The most important data to collect is the power consumption of each device 50n. As shown in FIG. 3, a large power consumption peak appears in the time zone. In order to suppress the peak of power consumption from the operating status and power consumption of each device 50n, the device controller 900 creates and controls each device 50n control data and adapts to the overall power consumption. By controlling the operation of the conversion unit 201, the discharge of the storage battery 202 is controlled.

  The discharge characteristics of the storage battery 202 can be optimized by controlling the power consumption of the entire house by such device control, and the capacity and size of the storage battery can be optimized. Further, by controlling the operation of the conversion unit, it is possible to supply high-quality commercial AC power by controlling the conversion performance in accordance with the power fluctuation. For example, when the total power consumption increases, a voltage drop or frequency fluctuation of the supplied power occurs, but these can be suppressed. Such power quality control is performed so as to keep the quality as constant as possible in accordance with the total power consumption of the supply area even with the power distributed from the power generation company, but the entire supply area has a large variation. Compared to this, quality control can be performed in units of one house, so it is possible to provide higher quality power supply.

  By using a part of the connected device 50n as a sensor for observing the environment of the house, for example, temperature and humidity, illuminance in the room, presence of personnel, etc. Regardless of this, it is possible to control devices that operate, and it is possible to suppress unnecessary power consumption. As a result, the power peak can be suppressed and the discharge characteristics of the storage battery 202 can be optimally controlled. In addition, by grasping the movement state of the personnel by these sensors, it is possible to grasp the approach from the outside and the activity state of the personnel. By collecting and analyzing this in the device controller 900, it becomes possible to know the intrusion into a malicious house from the outside, or to know the activity status of the personnel in the house due to some accident or failure. By transmitting the information to the outside, it is possible to maintain the home / property and ensure the safety of personnel in the house.

  The device control between each device 50n and the device controller 900 employs an echo net protocol. The Echonet protocol is a protocol that has been developed for the purpose of device control centering on power control as described above, and has already been established.

  A specific low power radio is employed for the control link 100n used for device control. This is a communication method developed on the premise of device control as described above, and the power consumption of the communication device itself is very small. In particular, since the communication method itself used for controlling the power consumption as described above does not make sense if it consumes power, it is effective that the power consumption is small. In addition, since it is wireless, there is no restriction on the layout of equipment, installation conditions, and the like, and since the power consumption is small, the communication device itself can be driven by a battery. This is a necessary function for a sensor that may need to be installed in a place where power cannot be supplied.

  On the other hand, high-speed power line communication may be employed for the control link 100n. High-speed power line communication is compatible with Ethernet and is a high-speed communication method suitable for IP packet transmission. In this case, Echonet data may be transmitted as an IP packet. In addition, since high-speed communication is possible, video equipment and PCs can be used for data transmission such as video data using high-speed power line communication. As described above, the device 50n can realize not only device control but also various services by communication by properly using high-speed power line communication and specific low-power radio according to the characteristics and application. Furthermore, in high-speed power line communication, it is conceivable that the communication signal leaks to other houses through the distribution line. However, since the conversion unit 201 can separate the house and the external distribution line, the high-speed power line communication signal It is possible to prevent external leakage.

  The device controller 900 is connected to the router 800 via a wireless LAN of Ethernet or IEEE 802.11 standard, and further connected to the server group 1200 via the Internet line 600. By collecting and processing a data group collected by the device controller 900 in a server, it is possible to realize more detailed device control, advanced services that cannot be accommodated by the device controller 900, and the like. In addition, it is possible to control the device in cooperation with not only the information in the house but also the local information.

  In this way, by combining the operation control of the device 50n and the discharge of the storage battery 202, and controlling the seasonal fluctuations of the power consumption, the power consumed in the house can be controlled to a constant amount annually with almost no consumer awareness. Is possible. It is also possible to predict the approximate annual power consumption of each household. With such a prediction function and a power consumption function, it is possible to flatten the electricity bill that is currently charged in a metered amount.

  Securing the remaining charge amount of the storage battery 202 above a certain level realizes the life and size reduction of the storage battery. Therefore, in addition to charging at night, it is effective for the device control unit 900 to charge according to the remaining charge amount of the storage battery 202 and an instruction from the server even during the daytime when power is consumed. In addition, for daytime power, it is possible to select and purchase multiple power suppliers in the future, so by performing daytime charging control from the outside according to conditions such as requirements on the power supply side, The battery can be charged in the daytime at a cheaper electricity rate, and the life of the storage battery can be further extended and downsized. It is also possible for a department that has a server that controls the storage battery 202 and the device controller 900 to substitute for payment of power to a power supplier using, as a resource, an electricity bill contracted with the subscriber. In this case, electricity consumption fluctuates depending on the weather conditions and temperature of each year, and in some cases, there is a possibility that charges will be exceeded. It is possible to make it less risky.

  On the other hand, as described in the problem to be solved by the present invention, power supply is liberalized, and a new market is generated in which power generation, power transmission, and power supply are separated. Transmission is difficult, but it is thought that new entry will occur in power generation and power supply. At present, there are already companies that produce electricity, and they sell electricity separately from existing ones. If power generation is liberalized in this way, the amount of power generation increases and a difference from the amount of consumption also occurs, resulting in an increase in fluctuations in power charges. Therefore, in order to use cheap power, it is only necessary to purchase power at a cheap time and not to use power at a high time. However, the power itself needs to balance the power generation amount and the consumption amount, and the law requires that the power generation amount and the consumption amount be balanced every 30 minutes. Conventionally, no matter how much time the electricity was cheap, it could not be consumed even if purchased because the electricity itself could not be stockpiled. Then, the purchased power can be consumed by controlling the storage battery 202.

  As a power generation company, fluctuations in the amount of generated power can be a very heavy load on the equipment. Therefore, power consumers who purchase a certain amount of consumption without fluctuations every hour are the most stable and desired customers. In the present invention, it is possible to generate a certain amount of power by controlling the charging of each storage battery 202, so that it is possible to purchase power under very advantageous conditions.

  In addition, since the electric power consumed by the storage battery 202 can be controlled, if the charging of the storage battery 202 is stopped when the power is imminent, a certain amount of surplus power is generated. Producing profit by purchasing this surplus power If this can be reduced to a power rate, the cost of power procurement can be reduced. When power is imminent, when the amount of power stored in the storage battery 202 has sufficient capacity and the time for reducing the procurement cost of power can be predicted, it is possible to release the power of the storage battery 202 to the power transmission side and purchase the power. It is. Thereby, the procurement cost of electric power can be further reduced.

  A solar cell 203 and a fuel cell 204 can also be connected to the conversion unit 201. As a result, for example, the storage battery 2002 can be charged with the power supplied from the solar battery 203 on a day when the temperature in midsummer is high, thereby supplementing the power consumption for cooling. It is also possible to improve the power generation efficiency of the fuel cell by operating the fuel cell at a constant rate, charging the storage battery 202, and then converting it into commercial alternating current. Further, it is obvious that the power purchase cost from the power supplier can be reduced by the combination of the fuel cell 204, the solar cell 203 and the storage battery 202.

  In the above embodiments, it is assumed that the connected device 50n has a built-in control link function and is directly connected to the device controller 900. However, an actual home already has a device 50n. Thus, in order to apply the present invention to existing equipment, a communication adapter is adopted as shown in FIGS.

  FIG. 4 shows a specific low-power wireless communication adapter, which is composed of a watt-hour meter 2000, a power controller 2001, and a specific low-power wireless communication module 2002, which has a power line 2003 and a control interface 2004. The input of the specific low power wireless communication adapter is connected to the outlet of the power line 2003, and power is supplied to the device 500 from the output. When the device 500 complies with a control interface from the outside, for example, the Echonet Ready standard, the device 500 has a terminal connected to the device 500, and transmits a device control command and transmits data from the device 500 to the device controller 900. Is possible. In this case, the device 500 is controlled by the control data. Even if the device does not have an external control interface, the power consumption supplied via the specific low-power communication adapter can be measured, so that it is transmitted to the device controller 900, and the device controller 900 By controlling the power controller 2002 with the control command from the device, it is possible to control the power of the device. The power control here is, as simplest, on / off of the device, and is realized by lowering the supply voltage in some cases.

  FIG. 5 shows a high-speed power line communication adapter, which includes a watt-hour meter 3000, a transformer 3001, a power controller 3002, and a high-speed power line communication module 3003, and has a power line 3004 and an Ethernet interface 3005. . The input of the high-speed power line communication adapter is connected to a power line outlet, and power is supplied to the device 500 from the output. When the device 500 has an Ethernet interface and the device 500 has an echo net protocol communication function, it is possible to transmit a device control command and transmit data from the device 500 to the device controller 900. It is. Therefore, in this case, the device 500 is controlled by the control data. Even when the device does not have an external control interface, the power consumption supplied via the high-speed power line communication adapter can be measured, so that it is transmitted to the device controller 900, and the device controller 900 By controlling the power controller 3002 with this control command, it is possible to control the power of the device. The power control here is, as simplest, on / off of the device, and is realized by lowering the supply voltage in some cases. As described above, by using the communication adapter, the present invention can be applied to the device 500 already owned. In addition, the power consumed by the existing device is transmitted from the device controller 900 to the server. Therefore, it is possible to grasp an old device that has a very large amount of power consumption. By replacing this with a new device with low power consumption and presenting it to the user together with a discount for a fixed amount of electricity charge, it is possible to promptly replace the old device with a high degree of convincing.

  As described above, the present invention can be applied to a system or service for supplying household commercial power.

The figure which shows the structure of this invention Diagram showing the configuration of the low-power wireless communication adapter Diagram showing the configuration of the high-speed power communication adapter The figure of the charging / discharging time characteristic of the storage battery per day in this invention, the charge electric power time characteristic to a storage battery, and a power charge The figure of the charging / discharging time characteristic of the storage battery per day in this invention, and the power consumption fluctuation | variation characteristic with respect to time at home

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Electricity meter 201 Converter 202 Storage battery 203 Solar battery 204 Fuel cell 300 Domestic distribution version 40n Light line 50n Equipment 600 Internet line 700 Terminating device 800 Router 900 Equipment controller 100n Control link 1100 Data link 1200 Server group 2000 Electricity meter 2001 power controller 2002 specific low power wireless communication module 2003 power line 2004 control interface 3000 watt hour meter 3001 transformer 3002 power controller 3003 high-speed power line communication module 3004 power line 3005 Ethernet interface

Claims (16)

A storage battery that is charged by power from the power line;
Connected between a watt-hour meter and a household distribution board, control of the storage battery, as well as a converter for converting supplied DC power into commercial AC power;
A power supply system comprising means for controlling the charge / discharge operation of the storage battery in conjunction with a power charge supplied from a power line. A controller capable of communicating with the converter;
A communication device connected to the controller having a function of measuring the control and state of the device;
Means for collecting power consumption and state of the device and transmitting to the controller by the communication device;
The converter is configured to transmit the state of the storage battery and the state of power supply to the controller;
Means for creating a command for controlling the device in conjunction with the power consumption and state of all connected devices, the state of the storage battery, and the state of power supply;
Means for transmitting this command to the device and controlling the operation of the device;
Means for creating a command for controlling the operation of the storage battery and the conversion unit in conjunction with the power consumption and state of all connected devices, the state of the storage battery, and the state of power supply;
The power supply system according to claim 1, further comprising means for transmitting the command to the device and controlling operations of the storage battery and the controller. The controller to which a communication line is connected;
The communication line is the Internet;
A server connected to the controller via the communication line;
The power supply system according to claim 2, wherein the power consumption amount and state of the device and the conversion unit include a step of transmitting the state of the storage battery and the state of power supply to a server. The power supply system according to claim 2, wherein the controller and the device communicate with each other by an Echonet protocol. The power supply system according to any one of claims 2 to 4, wherein a specific low power radio is used for connection between the controller and the device. 6. The power supply system according to claim 2, wherein high-speed power line communication is used for connection between the controller and the device. The power supply system according to any one of claims 2 to 6, wherein power line communication is used for connection between the controller and the converter. The controller has a conversion function of Internet protocol and Echonet protocol,
The power supply system according to any one of claims 1 to 7, which has a function of interconnecting Ethernet (registered trademark), specific power-saving radio, and power line communication. The converter has a function of connecting to a solar cell or a fuel cell,
The power supply system according to claim 1, further comprising a step of charging the storage battery with electric power supplied from a solar cell and a fuel cell. Charging the storage battery at a time when the electricity price is cheap, using the time difference between the electricity usage charges supplied by the power generation company,
In the time zone when the power rate is high, the electricity charged in the storage battery is converted into commercial alternating current and supplied, and
Monitoring the power consumed by the device;
Interlocking with a sensor arranged in the house and controlling each of the devices;
A power supply service method comprising the steps of controlling the power consumed in a house by linking the operations of the devices and controlling the power consumption to be optimal for the discharge of the storage battery. Purchasing according to the hourly fluctuation of the electricity usage fee supplied by the power generation company,
In conjunction with the purchase of electric power, charging and controlling the storage battery,
Converting electricity supplied to the storage battery into commercial alternating current according to a power charge, and supplying it;
Monitoring the power consumed by the device;
Interlocking with a sensor arranged in the house and controlling each of the devices;
A power supply service method comprising: linking the operations of the devices to control power consumed in a house and controlling the power consumption to be optimal for discharging the storage battery. The power supply service method according to claim 10 or 11, further comprising a step of charging the storage battery so that a charge amount of the storage battery does not fall below a certain level in conjunction with power consumption by the device during a time period when the power rate is high. A step of stopping the storage function of the storage battery when there is no more power supply from the power generation company;
The power supply service method according to claim 11, further comprising a step of trading surplus power generated by stopping power storage. A step of controlling the storage battery and sending the discharge power of the storage battery to the power transmission side when there is no room for power supplied by the power generation company;
The power supply service method according to claim 11, further comprising a step of trading the transmitted power. Contracting the electricity price to be traded with the power generation company by hour, as well as the power consumption conditions and purchase price,
The power supply service method according to any one of claims 10 to 14, further comprising a step of collecting a power charge for each house at a fixed amount. The power supply service method according to any one of claims 10 to 15, comprising a step of monitoring power consumption of each device and a step of reflecting a fixed amount of power when a device with high power consumption is replaced with a device with low power consumption. .

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