JP2004112868A - Power control system and electric power control method - Google Patents

Power control system and electric power control method Download PDF

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Publication number
JP2004112868A
JP2004112868A JP2002268678A JP2002268678A JP2004112868A JP 2004112868 A JP2004112868 A JP 2004112868A JP 2002268678 A JP2002268678 A JP 2002268678A JP 2002268678 A JP2002268678 A JP 2002268678A JP 2004112868 A JP2004112868 A JP 2004112868A
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Japan
Prior art keywords
power
power generation
amount
monitoring
step
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JP2002268678A
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Japanese (ja)
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JP3980980B2 (en
Inventor
Hiroshi Azuma
Noboru Nakamine
仲嶺 昇
東 啓史
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Toshiba Corp
株式会社東芝
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/70Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of electrical power generation, transmission or distribution, i.e. smart grids as climate change mitigation technology in the energy generation sector

Abstract

Provided is a power management system that comprehensively executes power management of a plurality of houses sharing a power generation device.
A condominium provided with a power generation device can not only purchase electricity from a power company but also sell surplus power of the power generation device to the power company by switching a cooperative inverter. . Then, the monitoring and control unit 13 monitors and compares the power usage of each household 14 and the shared part 15 with the power generation of the power generation device 11, and, for example, when the power usage exceeds the power generation, If no surplus power has been generated, a power saving request is notified to each household 14.
[Selection diagram] Fig. 1

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a power management technique in an apartment or the like provided with a power generation device, for example.
[0002]
[Prior art]
2. Description of the Related Art In recent years, in a condominium in which a plurality of households are resident, a building in which a plurality of companies have offices, and the like, the number of cases in which a power generation device using, for example, sunlight is increased. In general, the purpose of installing this power generation device is mainly to respond to a power disaster or to secure power for a common part.
[0003]
In addition, a company having a large-scale power generation facility not only uses the obtained power by itself, but also sells surplus power to a power company. Therefore, for example, even in a condominium where a power generation device is installed, if surplus power can be sold to a power company, for example, management costs to be borne by each household can be reduced or reduced significantly, or this sales It is also possible to return the earned income to each household.
[0004]
[Problems to be solved by the invention]
By the way, in order to perform such sales, a mechanism for securing as much excess power as possible, that is, a mechanism for saving power is indispensable. However, in an aggregate of a plurality of houses, such as an apartment or a building, each person could not recognize the power supply and demand situation of the entire apartment or building. Therefore, it is difficult for all households to cooperate and carry out appropriate power saving according to the situation, for example, when the surplus power falls below a predetermined amount, and it is difficult to transmit power stably to the outside. It was not realistic to sell electricity that needed to be done in condominiums and the like.
[0005]
The present invention has been made in view of such circumstances, and provides a power management system that comprehensively performs power management of a plurality of houses sharing a power generation device and a power management method applied to the system. The purpose is to:
[0006]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention provides a power management system that comprehensively performs power management of a plurality of houses sharing a power generation device, and a power generation amount monitoring unit that monitors a power generation amount of the power generation device. A usage monitoring means for monitoring the power usage of each house and the common unit, and a comparison between the power generation obtained by the power generation monitoring means and the total power usage obtained by the usage monitoring means, And a control means for performing a notification according to the result for each door for each door.
[0007]
In the power management system of the present invention, for example, for each household occupying a condominium provided with a power generation device, the entire condominium obtained by comparing the amount of power generated by this power generation device with the amount of power used by each house and common area A system that prompts households to save power according to the situation, such as notifying the power supply and demand situation in a timely manner.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0009]
FIG. 1 is a diagram showing a schematic configuration of a power management system according to an embodiment of the present invention.
[0010]
In the figure, a condominium 10 is a building to which the power management system is applied, and includes a power generator 11 and a cooperative inverter 12. The condominium 10 has a power plant contract with the power company 20, and not only purchases the power from the power company 20, but also sells the power obtained by the power generation device 11 to the power company 20. You can do it. The switching between the power purchase and the power sale is performed by the cooperative inverter 12. In addition, the cooperative inverter 12 also performs a power collection process of the power obtained by the power generation device 11 and the power purchased from the power company 20. Here, a solar panel is shown as the power generation device 11, but is not intended to be limited to this.
[0011]
The monitoring / control unit 13 plays a central role in a power management system applied to the condominium 10, and operates on a high-performance computer called a server, for example. In other words, the monitoring / control unit 13 is realized by a program describing the operation procedure of the computer, and controls the execution of a voltage transformation process, power generation / usage monitoring, power saving request, etc., which will be described later. Further, for these processes, the monitoring / control unit 13 includes a power sales record file 131, a door-to-door electricity usage file 132, and a power rate file 133.
[0012]
In this condominium 10, electric power is used in each of the households 14 of the A house, the B house, the C house,. Then, in the apartment 10, an LED (Light Emitting Diode) 141 for notifying the power supply and demand situation of the whole building is installed in each house. Here, an example is shown in which the LED 141 is installed on the front surface of the housing of an air conditioner, which is one of home appliances with a high power saving effect. However, the present invention is not limited to this. The device for notifying the power supply and demand situation of the whole building is not limited to the LED, and any notification device can be applied.
[0013]
Next, an operation principle of the power management system will be described with reference to FIG. FIG. 2 is a process flow showing the flow of the operation of the power management system.
[0014]
The power transmitted from the power company 20 (FIG. 2 (1)) and the power generated by the power generator 11 (FIG. 2 (2)) are subjected to power collection processing by the cooperative inverter 12 (FIG. 2 (3)). )), Power distribution control by the monitoring / control unit 13, that is, a transformation process, and supply to the households 14 and the electric equipment of the common part 15 (FIGS. 2 (4) and (5)).
[0015]
Further, at this time, the monitoring / control unit 13 monitors the power consumption of each household 14 and the power consumption of the shared part 15, and records each power consumption in the door-to-door power consumption record file 132 and (FIG. 2 (6)), the amount of power generated by the power generator 11 is monitored (FIG. 2 (7)). Then, the monitoring / control unit 13 calculates whether or not the amount of power generated by the power generation device 11 exceeds the amount of power used by each household 14 and the shared portion 15, that is, whether or not there is surplus power (FIG. 2 (8)). ).
[0016]
When the amount of power generated by the power generation device 11 exceeds the amount of power used by each household 14 and the common part 15, that is, when there is surplus power, the monitoring and control unit 13 links the transmission of the surplus power to the power company 20. The instruction is given to the inverter 12 (FIG. 2 (9)), and the cooperative inverter 12 receiving this instruction transmits the surplus power to the power company 20 (FIGS. 2 (10) and (11)). Then, at the time of this sale, the monitoring / control unit 13 records the sales record in the power sale record file 131 (FIG. 2 (12)).
[0017]
On the other hand, when the power usage of each household 14 and the common part 15 exceeds the power generation of the power generation device 11, that is, when there is no surplus power, the monitoring / control unit 13 uses the power of a certain amount or more. A power saving request to reduce power consumption is notified to each of the households 14 (FIG. 2 (13)). With this notification, the resident is notified of the power saving request by the LED 141 installed on the front surface of the housing of the air conditioner 141. This notification is performed by, for example, LEDs of a plurality of colors. When the first color is lit, it indicates that there is no surplus power, and when the second color is lit, the power consumption of the household is further increased. To indicate that exceeds a certain amount.
[0018]
As described above, in this power management system, each household 14 occupying the condominium 10 provided with the power generation device 11 is notified of the power supply and demand situation of the entire condominium 11 in a timely manner. Realize a mechanism to encourage
[0019]
Further, the power company 20 compares the amount of power transmitted to the apartment 10 with the amount of power received from the apartment 10, and performs a billing / payment process corresponding to the difference in the amount of power (FIG. 2 (14)). ). On the other hand, the monitoring / control unit 13 checks the billing / payment process by the power company 20 based on the power consumption recorded in the door-to-door power consumption record file 132 and the sales record recorded in the power sale record file 131. The contents are recorded in the electricity charge file 133 (FIG. 2 (15)).
[0020]
As shown in FIG. 3, if the door-to-door electricity bill calculation is performed using the electricity bill file 133 and the door-to-door electricity usage record file 132, for example, when returning the income obtained by selling the surplus electricity to each household, It is also possible to allocate more electricity to households that use less power, and realize a mechanism that encourages households to save electricity.
[0021]
Here, the monitoring / control unit 13 determines that there is surplus power to be sold to the power company 20 when the amount of power generated by the power generation device 11 exceeds the amount of power used by each household 14 and the common part 15. On the other hand, an example has been described in which a power saving request is notified to each of the households 14 when the power consumption has not been exceeded. However, it is also possible to more actively perform monitoring and control for securing surplus power.
[0022]
For example, as shown in FIG. 4, a power sale amount setting function for presetting the amount of power to be sold to the power company 20 is added to the monitoring / control unit 13, and the sales power amount set by the power sale amount setting function is added to the power sale amount setting function. When the power amount obtained by adding a certain amount of power (margin power amount) is not secured as surplus power, that is, when the power generation amount of the power generation device 11 exceeds the power usage amount of each household 14 and the common part 15 Even so, if the excess amount is less than a certain value, a power saving request is notified to each household 14 at that time. This makes it possible to stably transmit a certain amount or more of power to the power company 0. In addition, it is preferable that the power selling amount setting function can set a different power amount at an arbitrary or predetermined period such as a time zone or a season.
[0023]
For example, instead of the LED 141, an indicator for notifying the real-time of the power consumption of the entire condominium 10 or an indicator for notifying the real-time of the power consumption of the entire condominium 10 and each household 14 is installed. You may do it. This indicator can also achieve the intended purpose of encouraging each house to save power according to the situation.
[0024]
As described above, the present invention is not limited to the above-described embodiment, and can be variously modified in an implementation stage without departing from the scope of the invention. Furthermore, the embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, even if some components are deleted from all the components shown in the embodiment, the problem described in the column of the problem to be solved by the invention can be solved, and the effects described in the column of the effect of the invention can be solved. Is obtained, a configuration from which this configuration requirement is deleted can be extracted as an invention.
[0025]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a power management system that comprehensively performs power management of a plurality of houses sharing a power generation device and a power management method applied to the power management system.
[Brief description of the drawings]
FIG. 1 is a diagram showing a schematic configuration of a power management system according to an embodiment of the present invention.
FIG. 2 is a process flow showing an operation flow of the power management system of the embodiment.
FIG. 3 is an exemplary view for explaining an electric bill settlement by a door which is made possible by the power management system of the embodiment.
FIG. 4 is an exemplary view showing a schematic configuration in an application example of the power management system according to the embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Condominium 11 ... Power generation apparatus 12 ... Cooperative inverter 13 ... Monitoring / control part 14 ... Each household 15 ... Shared part 131 ... Electricity sales record file 132 ... Household electricity consumption file 133 ... Electricity charge file 141 ... LED

Claims (12)

  1. A power management system that comprehensively performs power management of a plurality of houses sharing a power generation device,
    Power generation amount monitoring means for monitoring the power generation amount of the power generation device,
    Usage monitoring means for monitoring the power usage of each house and common area;
    Control means for comparing the power generation amount obtained by the power generation amount monitoring means with the total electric power consumption obtained by the usage amount monitoring means, and performing a notification according to the comparison result for each house. A power management system.
  2. The control means notifies a power saving request when the total power consumption obtained by the power consumption monitoring means exceeds the power generation quantity obtained by the power generation monitoring means. 2. The power management system according to 1.
  3. Further comprising a power transmission means for transmitting the power generated by the power generation device to the outside,
    The control unit transmits the surplus power to the outside by the power transmission unit, excluding the total power consumption obtained by the usage monitoring unit from the power generation amount obtained by the power generation monitoring unit. The power management system according to claim 1, wherein
  4. Power transmission means for transmitting the power generated by the power generation device to the outside,
    Setting means for setting the amount of power to be transmitted to the outside by the power transmitting means,
    Further comprising
    The control unit calculates a total power obtained by the usage amount monitoring unit by subtracting a transmission power amount set by the setting unit and a predetermined margin power amount from the power generation amount obtained by the power generation amount monitoring unit. 2. The power management system according to claim 1, wherein a notification of a power saving request is issued when the usage amount exceeds the usage amount.
  5. 5. The electric power according to claim 1, wherein the control unit issues the notification to each house whose electric power usage obtained by the usage monitoring unit exceeds a predetermined value. 6. Management system.
  6. The power management system according to claim 4, wherein the setting unit includes a unit configured to set the power amount to an arbitrary value or a different value for each predetermined period.
  7. A power management method applied to a power management system that comprehensively performs power management of a plurality of houses sharing a power generation device,
    A power generation amount monitoring step of monitoring the power generation amount of the power generation device,
    A usage monitoring step of monitoring the power usage of each house and the common area;
    A control step of comparing the power generation amount obtained in the power generation amount monitoring step with the total power consumption amount obtained in the usage amount monitoring step, and performing a notification in accordance with the comparison result for each house. A power management method.
  8. The control step, when the total power consumption obtained in the consumption monitoring step exceeds the power generation obtained in the power generation monitoring step, notifies a power saving request. 7. The power management method according to 7.
  9. Further comprising a power transmission step of transmitting power generated by the power generation device to the outside,
    The control step is characterized in that surplus power of an amount excluding the total power consumption obtained by the usage monitoring means from the power generation obtained in the power generation monitoring step is transmitted to the outside by the power transmission step. The power management method according to claim 7, wherein:
  10. A power transmission step of transmitting power generated by the power generation device to the outside,
    A setting step of setting an amount of power to be transmitted by the power transmission step;
    Further comprising
    The control step calculates a total power obtained by the usage amount monitoring step by subtracting a transmission power amount set by the setting step and a predetermined margin power amount from the power generation amount obtained by the power generation amount monitoring step. 8. The power management method according to claim 7, wherein a notification of a power saving request is made when the usage amount is exceeded.
  11. 11. The electric power according to claim 7, wherein the control step sends the notification to each house whose electric power consumption obtained by the electric power consumption monitoring step exceeds a predetermined value. Management method.
  12. The power management method according to claim 10, wherein the setting step includes a step of setting the power amount to a different value arbitrarily or every predetermined period.
JP2002268678A 2002-09-13 2002-09-13 Power management system and power management method Active JP3980980B2 (en)

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JP2005312210A (en) * 2004-04-22 2005-11-04 Tokyo Electric Power Co Inc:The Apparatus and method for controlling current on indoor electric light line in apartment
JP2010152792A (en) * 2008-12-26 2010-07-08 Daiwa House Industry Co Ltd Carbon dioxide emission reduction system
JP2010539560A (en) * 2007-08-28 2010-12-16 コンサート インコーポレイテッドConsert Inc. Deferred power sales method, virtual electric business entity, and power acquisition method
JP2011118551A (en) * 2009-12-01 2011-06-16 Fujitsu Ltd Power purchase system, power purchasing device and power selling device
CN102340167A (en) * 2011-09-08 2012-02-01 周封 Oil field oil pumping unit distributed grid connected type wind power generation complementary power supply system
JP2012039724A (en) * 2010-08-05 2012-02-23 Toyota Motor Corp Power supply system for collective housing
JP2012058852A (en) * 2010-09-06 2012-03-22 Toshiba Corp Data management device, power consumption amount calculation system and program
US8307225B2 (en) 2007-08-28 2012-11-06 Consert Inc. Method and apparatus for actively managing consumption of electric power supplied by one or more electric utilities
US8396606B2 (en) 2007-08-28 2013-03-12 Consert Inc. System and method for estimating and providing dispatchable operating reserve energy capacity through use of active load management
US8527107B2 (en) 2007-08-28 2013-09-03 Consert Inc. Method and apparatus for effecting controlled restart of electrical servcie with a utility service area
JP2013219775A (en) * 2013-04-25 2013-10-24 Toshiba Corp Data management device, power usage amount calculation system and program
CN103620903A (en) * 2011-06-17 2014-03-05 松下电器产业株式会社 Power supply system
US8700187B2 (en) 2007-08-28 2014-04-15 Consert Inc. Method and apparatus for actively managing consumption of electric power supplied by one or more electric utilities
US8855279B2 (en) 2007-08-28 2014-10-07 Consert Inc. Apparatus and method for controlling communications to and from utility service points
US8996183B2 (en) 2007-08-28 2015-03-31 Consert Inc. System and method for estimating and providing dispatchable operating reserve energy capacity through use of active load management
CN104598991A (en) * 2014-12-27 2015-05-06 西安交通大学 Unit combination acquiring method considering out-going power transaction, transprovincial or interregional line transaction and security constraint
US9130909B2 (en) 2013-02-12 2015-09-08 Kabushiki Kaisha Toshiba Data management apparatus, power usage calculation system, and data management method
CN105071378A (en) * 2015-07-20 2015-11-18 东南大学 Day-ahead optimal dispatching method for distribution company with flexible loads
US9255948B2 (en) 2011-03-22 2016-02-09 Kabushiki Kaisha Toshiba Data converting device, data processing device, power consumption processing system and computer program product
JP2016092930A (en) * 2014-10-31 2016-05-23 株式会社セーフティネクスト Electric power saving system
US9429602B2 (en) 2013-02-12 2016-08-30 Kabushiki Kaisha Toshiba Partial information generating device, power usage amount calculation system, and partial information generating method
CN106505560A (en) * 2016-11-28 2017-03-15 无锡智合电力技术有限公司 A kind of network optimization operation method of many policy co-ordinations based on response priority
JP2017146761A (en) * 2016-02-17 2017-08-24 三菱電機株式会社 Supply-demand adjustment device
WO2018038219A1 (en) * 2016-08-24 2018-03-01 京セラ株式会社 Power management server, power management method, and power management system
CN107749645A (en) * 2017-09-26 2018-03-02 国网辽宁省电力有限公司 A kind of method for controlling high-voltage large-capacity thermal storage heating device

Cited By (32)

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Publication number Priority date Publication date Assignee Title
JP2005312210A (en) * 2004-04-22 2005-11-04 Tokyo Electric Power Co Inc:The Apparatus and method for controlling current on indoor electric light line in apartment
JP4492199B2 (en) * 2004-04-22 2010-06-30 東京電力株式会社 Current control device and control method for indoor power line in apartment house
US9881259B2 (en) 2007-08-28 2018-01-30 Landis+Gyr Innovations, Inc. System and method for estimating and providing dispatchable operating reserve energy capacity through use of active load management
JP2010539560A (en) * 2007-08-28 2010-12-16 コンサート インコーポレイテッドConsert Inc. Deferred power sales method, virtual electric business entity, and power acquisition method
US9305454B2 (en) 2007-08-28 2016-04-05 Consert Inc. Apparatus and method for controlling communications to and from fixed position communication devices over a fixed bandwidth communication link
US9069337B2 (en) 2007-08-28 2015-06-30 Consert Inc. System and method for estimating and providing dispatchable operating reserve energy capacity through use of active load management
US8700187B2 (en) 2007-08-28 2014-04-15 Consert Inc. Method and apparatus for actively managing consumption of electric power supplied by one or more electric utilities
US8855279B2 (en) 2007-08-28 2014-10-07 Consert Inc. Apparatus and method for controlling communications to and from utility service points
US8307225B2 (en) 2007-08-28 2012-11-06 Consert Inc. Method and apparatus for actively managing consumption of electric power supplied by one or more electric utilities
US8315717B2 (en) 2007-08-28 2012-11-20 Consert Inc. Method and apparatus for actively managing consumption of electric power supplied by an electric utility
US8396606B2 (en) 2007-08-28 2013-03-12 Consert Inc. System and method for estimating and providing dispatchable operating reserve energy capacity through use of active load management
US8527107B2 (en) 2007-08-28 2013-09-03 Consert Inc. Method and apparatus for effecting controlled restart of electrical servcie with a utility service area
US8996183B2 (en) 2007-08-28 2015-03-31 Consert Inc. System and method for estimating and providing dispatchable operating reserve energy capacity through use of active load management
JP2010152792A (en) * 2008-12-26 2010-07-08 Daiwa House Industry Co Ltd Carbon dioxide emission reduction system
JP2011118551A (en) * 2009-12-01 2011-06-16 Fujitsu Ltd Power purchase system, power purchasing device and power selling device
JP2012039724A (en) * 2010-08-05 2012-02-23 Toyota Motor Corp Power supply system for collective housing
JP2012058852A (en) * 2010-09-06 2012-03-22 Toshiba Corp Data management device, power consumption amount calculation system and program
US9255948B2 (en) 2011-03-22 2016-02-09 Kabushiki Kaisha Toshiba Data converting device, data processing device, power consumption processing system and computer program product
CN103620903A (en) * 2011-06-17 2014-03-05 松下电器产业株式会社 Power supply system
CN102340167A (en) * 2011-09-08 2012-02-01 周封 Oil field oil pumping unit distributed grid connected type wind power generation complementary power supply system
US9130909B2 (en) 2013-02-12 2015-09-08 Kabushiki Kaisha Toshiba Data management apparatus, power usage calculation system, and data management method
US9429602B2 (en) 2013-02-12 2016-08-30 Kabushiki Kaisha Toshiba Partial information generating device, power usage amount calculation system, and partial information generating method
JP2013219775A (en) * 2013-04-25 2013-10-24 Toshiba Corp Data management device, power usage amount calculation system and program
JP2016092930A (en) * 2014-10-31 2016-05-23 株式会社セーフティネクスト Electric power saving system
CN104598991A (en) * 2014-12-27 2015-05-06 西安交通大学 Unit combination acquiring method considering out-going power transaction, transprovincial or interregional line transaction and security constraint
CN104598991B (en) * 2014-12-27 2018-04-17 西安交通大学 Consider outer power transmission transaction, transprovincially transregional interconnection transaction and the Unit Combination acquisition methods of security constraint
CN105071378A (en) * 2015-07-20 2015-11-18 东南大学 Day-ahead optimal dispatching method for distribution company with flexible loads
JP2017146761A (en) * 2016-02-17 2017-08-24 三菱電機株式会社 Supply-demand adjustment device
WO2018038219A1 (en) * 2016-08-24 2018-03-01 京セラ株式会社 Power management server, power management method, and power management system
CN106505560A (en) * 2016-11-28 2017-03-15 无锡智合电力技术有限公司 A kind of network optimization operation method of many policy co-ordinations based on response priority
CN107749645A (en) * 2017-09-26 2018-03-02 国网辽宁省电力有限公司 A kind of method for controlling high-voltage large-capacity thermal storage heating device
CN107749645B (en) * 2017-09-26 2019-05-03 国网辽宁省电力有限公司 A method of control high-voltage large-capacity thermal storage heating device

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