JP6487137B2 - Energy supply system, energy supply method, and program - Google Patents

Description

The present invention is an energy supply system, energy supply method relates及 beauty program.

The energy supply system generates energy, stores the generated energy, and supplies the stored energy to a load.
As a relatively large-scale energy supply system, there is a system in which a specific area is a target area for energy supply (see, for example, Non-Patent Document 1). The energy supply system described in Non-Patent Document 1 supplies energy generated by a business to a plurality of consumers in a specific area targeted for business. An energy supply device provided by a company that supplies energy enables supply of a large amount of energy, and can distribute and supply the energy amount to many energy consumers. In order to configure such an energy supply system, it is necessary to lay a distribution path for supplying energy over a wide range. In such cases, the distribution route is often laid along with the development of public roads, etc., during the redevelopment of the area.
On the other hand, as a comparatively small-scale energy supply system, there is a scale that is provided for each energy consumer (see, for example, Non-Patent Document 2). An energy storage device provided for each energy consumer generates a plurality of types of energy. The energy storage device supplies one of the generated energies to the load when it is generated without accumulating it, stores the other energy, and then supplies the energy stored for the load. In this way, the energy storage device stores energy and holds the stored energy until it is consumed, so that energy is not wasted and energy can be used effectively. is there.
Such an energy supply system includes, for example, a fuel cell cogeneration system. A fuel cell cogeneration system accumulates heat generated when electricity is generated. The fuel cell cogeneration system makes it possible to increase energy use efficiency by accumulating generated heat and using it as new energy.

Tokyo Gas, “Search by Case: 5. Shinjuku Subcenter Area”, [online], Tokyo Gas, [April 16, 2013 Search], Internet <URL: http://eee.tokyo-gas.co. jp / sen / case / case05.html> General Promotion Association for Fuel Cell Promotion, “ENE-FARM”, [online], General Association for Promotion of Fuel Cell Promotion, [Search April 16, 2013], Internet <http: //www.fca-enefarm. org / index.html>

However, the amount of heat generated by the energy supply system shown in Non-Patent Document 2 exceeds the amount of heat demanded by individual energy consumers. If the heat generated in excess of the demand for heat is not used effectively, the amount of heat used cannot be increased, and the theoretical utilization efficiency value that is highest when all the generated heat is used is reached. Energy efficiency cannot be increased. For this reason, even if energy consumers who are not included in the target area for redevelopment try to increase the energy efficiency by individually providing an energy supply system, there may be a problem that the energy efficiency cannot be sufficiently increased.
In view of the above problems, the present invention provides an energy supply system, an energy supply method, and a program that can increase energy use efficiency.

  [1] In the energy supply system according to one aspect of the present invention, a plurality of sites are included in a closed area that does not include a public road, and energy is supplied to a plurality of loads respectively arranged on the plurality of sites. An energy supply unit that stores the same type of energy as the type of energy consumed by the plurality of loads, and supplies a part of the stored energy to the plurality of loads, and the public road An energy transfer unit that is laid in a closed area without passing through and transfers energy supplied from the energy supply unit to the plurality of loads, and a building is provided on each of the plurality of sites. The energy transfer unit includes a pipe line connecting the heat storage facility as the energy supply unit and the building from the heat storage facility to the building. An energy supply system, characterized in that provided for each object.

[2] The present invention, in the above invention, the energy conversion unit generates the thermal energy and electricity energy based on the primary energy, supply electrical energy said generated in the plurality of load The energy storage unit stores the generated thermal energy, and the control unit stores the energy storage unit when the amount of primary energy is less than the total amount of energy required. Thermal energy stored in the energy storage unit when the primary energy is controlled to be supplied to the plurality of loads, or when the amount of primary energy is greater than the total amount of energy required. Is controlled so as not to be supplied to the plurality of loads, and the energy conversion unit controls the thermal energy and the electric energy. The time any of the load of the plurality of load after generation of the over consume the thermal energy, the thermal energy to the load from the energy storage unit is characterized in that it is supplied.

[ 3 ] Further, in the present invention, the present invention includes one or a plurality of second sites adjacent to the first site where the energy supply unit is provided, and the load is applied to the second site. It is provided, respectively, The energy conveyance part is laid across one site boundary of the 1st site and the 2nd site, It is characterized by the above-mentioned.

[ 4 ] In the energy supply method according to one aspect of the present invention, a plurality of sites are included in a closed area that does not include a public road, and energy is supplied to a plurality of loads respectively arranged on the plurality of sites. An energy supply method for supplying energy, wherein energy of the same type as energy consumed by the plurality of loads is stored, and an energy supply unit supplies a part of the stored energy to each of the plurality of loads. A step that is laid in a closed region without passing through the public road, and a step in which an energy transfer unit transfers energy supplied from the energy supply unit to the plurality of loads, and a type different from the type of energy The plurality of loads are reduced with respect to the amount of energy supplied to the energy supply unit from an energy source that supplies a large amount of energy. To such energy use efficiency is high with respect to the total amount of energy, comprising the steps of: determining a method of supplying the energy supplied to the load, the step of determining the energy supply method of supplying to the load, the energy source From the primary energy supplied from the primary energy supplied to the energy supply unit, electrical energy and thermal energy to be supplied to the plurality of loads are generated by an energy conversion unit, and the electric energy of the generated electrical energy and the generated thermal energy Based on the amount of heat, the energy conversion efficiency for the amount of energy supplied from the energy source is calculated, and based on the energy conversion efficiency when the energy consumer uses the energy, the generated thermal energy Stored in the energy storage unit Whether to supply heat energy to the plurality of loads to determine a method of supplying the energy comprises the step of controlling according to the result of the determination, said step of controlling includes the energy stored in the energy storage unit The amount of primary energy required when supplying to the plurality of loads is the load to supply energy to the loads without supplying the stored energy to the plurality of loads. When the energy stored in the energy storage unit is less than the total amount of energy required for supplying the energy, the step of controlling the energy stored in the energy storage unit to supply the plurality of loads; When the total amount of energy required as energy to be supplied to the load is larger, Characterized by comprising the step of controlling the energy energy storage unit is stored so as not to supply to the plurality of loads.

[ 5 ] Further, according to one aspect of the present invention, an energy supply that supplies energy to a plurality of loads that are respectively disposed in the plurality of sites, wherein a plurality of sites are included in a closed area that does not include a public road. Storing the same type of energy as the type of energy consumed by the plurality of loads in a computer of the system, and supplying each of the stored energy to the plurality of loads by an energy supply unit; and A step in which an energy carrying unit conveys energy supplied from the energy supply unit to the plurality of loads without being laid on public roads, and a type of energy different from the type of energy. The plurality of loads consumes the amount of energy supplied from the energy source to be supplied to the energy supply unit. That as energy efficiency to the total amount of energy is high, determining a method of supplying the energy supplied to the load, in the step of determining the energy supply method of supplying to the load, the energy from the energy source Electric energy and thermal energy supplied from the primary energy supplied to the supply unit to the plurality of loads are generated by an energy conversion unit, and electric power of the generated electric energy and heat generated by the generated thermal energy Based on the energy conversion efficiency with respect to the amount of energy supplied from the energy source , the generated thermal energy is supplied based on the energy conversion efficiency when the energy consumer uses the energy. Heat stored in the energy storage unit Determines whether to supply to the plurality of load energy As for the method of supplying the energy, a program for executing and controlling according to the result of the determination, the step of controlling, the energy storage When the energy stored in the section is supplied to the plurality of loads, the amount of energy of the primary energy required for supplying energy to the loads without supplying the stored energy to the plurality of loads. Controlling the energy stored in the energy storage unit to be supplied to the plurality of loads when the total amount of energy required for supplying the load to the load is smaller than the total amount of energy required to supply the load. The amount of energy required for the energy supplied to the load When made greater than the amount, which is a program for executing and controlling so as not to supply energy to the energy storage unit is stored in a plurality of loads.

In the present invention, it provides an energy supply system which can improve the energy utilization efficiency, energy supply method, the 及 beauty program.

It is a top view for demonstrating arrangement | positioning of the energy supply system in 1st Embodiment of this invention. It is a schematic structure figure of energy supply system 1 in this embodiment. It is a lineblock diagram showing one mode of energy supply system 1 in this embodiment. It is a flowchart which shows the procedure of the process in the energy supply system 1 in this embodiment. It is a top view for demonstrating arrangement | positioning of the energy accommodation system 100 in 2nd Embodiment. It is explanatory drawing which shows the energy accommodation system 100Z different from this embodiment. It is a layout for demonstrating the energy supply system 101 in 3rd Embodiment. It is a layout for demonstrating energy interchange system 100A in 4th Embodiment.

  Embodiments of the present invention will be described below with reference to the accompanying drawings. In the following description, the same components are denoted by the same reference numerals. In addition, in the description of each drawing, there may be cases where a configuration is added or deleted.

(First embodiment)
With reference to the drawings, an energy supply system according to an embodiment of the present invention will be described.
FIG. 1 is a plan view for explaining the arrangement of an energy supply system according to an embodiment of the present invention.
A closed area 5 shown in the figure indicates an area of land that does not include a public road. On the outside of the outer periphery of the closed area 5, a public road, public land, other closed areas, etc. (not shown) are in contact.
The closed area 5 includes a plurality of sites indicated by reference numerals 51, 52, 53, 54, and 55. For example, the sites 52, 53, 54, and 55 are arranged along the inside of the outer periphery of the closed region 5, and the boundaries of the sites are in contact with the outer periphery of the closed region 5. The premises 52, 53, 54, and 55 are in contact with each other. A site 51 is arranged inside the sites 52, 53, 54, and 55. The boundaries of the site 51 are in contact with the boundaries of the sites 52, 53, 54, and 55, respectively. Sites 51, 52, 53, 54, and 55 are adjacent to each other.

An energy supply unit 10 is disposed on the site 51. On the other hand, the buildings 2 are provided on the sites 52, 53, 54, and 55, respectively. The building 2 is, for example, a general household. Each building 2 is provided with a load 20 that consumes energy during operation. The energy conveyance unit 30 is provided across the site boundary between the site 51 and the sites 52, 53, 54, and 55 without passing through the public road or across the public road. A first end of the energy transfer unit 30 is connected to the energy supply unit 10, and a second end is connected to the load 20 in the building 2. The energy transport unit 30 connected as described above transports the energy stored in the energy supply unit 10 from the energy supply unit 10 to the load 20.
As described above, the site 51 where the energy supply unit 10 is arranged is different from the sites 52, 53, 54, and 55 where the load 20 is arranged. The energy supply system 1 supplies energy to the loads 20 arranged in the premises 52, 53, 54, and 55, respectively.

FIG. 2 is a schematic configuration diagram of the energy supply system 1 in the present embodiment.
The energy supply system 1 shown in the figure includes an energy supply unit 10, a load 20, and an energy transfer unit 30.

The load 20 consumes the supplied energy when it operates.
The energy supply unit 10 stores the same type of energy as the energy consumed by the plurality of loads 20. The energy supply unit 10 supplies a part of the stored energy to the plurality of loads 20 respectively.
Such an energy supply unit 10 includes an energy conversion unit 11, an energy storage unit 12, and a control unit 13. The energy conversion unit 11 generates energy to be stored in the energy storage unit 12 based on the supplied primary energy, and supplies the generated energy to the energy storage unit 12. The energy storage unit 12 stores the energy supplied from the energy conversion unit 11 as energy for supplying the load 20. The energy storage unit 12 supplies the stored energy to the load 20 in accordance with a command from the control unit 13. The control unit 13 controls whether the energy stored in the energy storage unit 12 is supplied to the plurality of loads 20.

FIG. 3 is a configuration diagram illustrating an aspect of the energy supply system 1 in the present embodiment.
Hereinafter, the energy supply system 1 will be described by exemplifying a distributed power generation system including a fuel cell.
In the energy supply system 1 shown in the figure, an energy supply unit 10 and a plurality of loads 20 (loads 20-A, 20-B, 20-C, 20-D) are shown.

  The load 20-A includes an electric load 21-A that consumes the supplied power and a heat load 22-A that consumes the supplied heat. The load 20-B includes an electric load 21-B that consumes the supplied power and a heat load 22-B that consumes the supplied heat. The load 20-C includes an electric load 21-C that consumes the supplied power and a heat load 22-C that consumes the supplied heat. The load 20-D includes an electric load 21-D that consumes the supplied power and a heat load 22-D that consumes the supplied heat. When the loads 20-A, 20-B, 20-C, and 20-D are collectively shown, they are simply referred to as the load 20. When the electrical loads 21-A, 21-B, 21-C, and 21-D are collectively shown, they are simply referred to as electrical loads 21. The electrical load 21 includes electrical appliances such as a refrigerator, a television, and lighting. When the thermal loads 22-A, 22-B, 22-C, and 22-D are collectively shown, they are simply referred to as the thermal loads 22. The thermal load 22 includes a hot water supply facility that consumes hot water through a shower or a plug.

The energy conversion unit 11 is a distributed power generation device including a fuel cell. The energy conversion unit 11 receives supply of fuel and electricity, which are energy sources (primary energy), and generates electricity and heat from the supplied fuel. The energy conversion unit 11 sends the generated electricity through the power line 31 and supplies it to the electric load 21. The energy conversion unit 11 supplies the generated heat to the energy storage unit 12.
The energy conversion unit 11 detects the primary energy amount of the energy source and outputs the detected result. The energy conversion part 11 detects the produced | generated heat amount, and outputs the detected result.

  The energy storage unit 12 includes a tank unit formed in a container that increases the thermal resistance to the outside air, and stores heat supplied from the energy conversion unit 11 as warm water in the tank unit. In order to supply the stored hot water to the heat load 22, the energy storage unit 12 pressurizes the stored hot water with a pump (not shown) and sends it out through the heat conduit 32.

  The heat conduit 32 shown in the figure only needs to be formed so as to supply hot water stored in the energy storage unit 12 from the energy storage unit 12 to the heat load 22. For example, it may be configured so that hot water can be supplied from the energy storage unit 12 toward the heat load 22, or may be configured in a loop shape so that hot water circulates between the energy storage unit 12 and the heat load 22. .

  In such an energy supply system 1, electricity and heat are generated as supplied energy, and the generated electricity and heat are supplied to the load 20. The energy supply system 1 can be consumed by the electric load 21 immediately after generating electricity, and can be consumed by shifting the time from the timing of generating heat.

(About the process in which the energy supply system 1 increases the energy utilization efficiency)
With reference to FIG. 4, the process which the energy supply system 1 implements in order to improve energy utilization efficiency is demonstrated.
FIG. 2 is a flowchart showing a processing procedure in the energy supply system 1.

  The energy conversion unit 11 detects the amount of primary energy supplied from the energy source (step Sa10), and detects the amount of power and the amount of heat generated according to the detected amount of primary energy (step Sa20).

  Next, the control unit 13 estimates the conversion efficiency in the energy conversion unit 11 based on the primary energy amount that is the energy source detected by the energy conversion unit 11, the generated electric energy, and the heat amount. The control unit 13 calculates a current energy conversion efficiency in the energy conversion unit 11 by performing a calculation such as a moving average for each of the primary energy amount, the generated electric energy, and the heat amount (step Sa30).

  Next, the control unit 13 calculates the amount of heat consumed by the load 20 from the temperature of the hot water stored in the energy storage unit 12, the amount of hot water supplied from the energy storage unit 12, and the like. The control unit 13 calculates the amount of energy when the energy consumer individually procures based on the calculated amount of heat (step Sa40).

  Next, the control unit 13 determines whether to supply the energy stored in the energy storage unit 12 to the plurality of loads 20 based on the primary energy amount and the energy amount when the energy consumer individually procures. To control. For example, the control unit 13 determines the amount of primary energy required when supplying the energy stored in the energy storage unit 12 to the plurality of loads 20. It is determined whether or not the total amount of energy required as energy to be supplied to the load to supply energy to the load without being supplied to the load 20 and the above control is performed according to the result. Perform (step Sa50).

  Next, the control unit 13 determines that the amount of primary energy required when supplying the energy stored in the energy storage unit 12 to the plurality of loads 20 is a plurality of energy stored in the energy storage unit 12. In order to supply energy to the load without being supplied to the load 20, it is determined whether or not the total amount of energy required as energy to be supplied to the load is smaller (step Sa60).

When the amount of primary energy becomes smaller than the total amount of energy required for each energy consumer as a result of the determination in step Sa60 (step Sa60: Yes), the control unit 13 stores the energy stored in the energy storage unit 12. Control is performed so as to supply a plurality of loads 20 (step Sa70).

  On the other hand, when the amount of primary energy is larger than the total amount of energy required for each energy consumer as a result of the determination in step Sa60 (step Sa60: No), the load 20 of energy stored by the energy storage unit 12 is reached. Is controlled so as to be stopped (step Sa80).

  The energy supply system 1 determines energy use efficiency when using the energy supply system 1 according to the procedure described above, and shares energy under conditions that improve the use efficiency.

(Examination of heat utilization efficiency)
Here, the case where the electrical load 21-A in the load 20-A of the first consumer consumes electricity will be described as an example. The energy conversion unit 11 generates heat in addition to electricity when generating electricity consumed by the electrical load 21-A from the fuel supplied as primary energy. The energy conversion unit 11 supplies the generated electricity to the electric load 21 -A and stores the generated heat as warm water in the energy storage unit 12.
The energy conversion unit 11 can extract energy from the fuel with a conversion efficiency of 80% when the conversion efficiency when generating electricity from the fuel is 40% and the heat generated at that time is 40%. The energy conversion part 11 raises the temperature of the warm water preserve | saved in a tank part using this heat. In this way, the energy conversion unit 11 stores heat as hot water.

  Even in the case where the thermal resistance of the container of the energy storage unit 12 is relatively high, the temperature of the hot water gradually decreases. Along with this, the stored heat is lost. That is, if hot water is not used forever, the stored heat is gradually lost, and the amount of heat that can be used decreases. As a result, even if the amount of heat that can be converted with 40% conversion efficiency is stored, the amount of heat is gradually lost over time. If the heat is not used as it is, the energy that can be substantially used is limited to 40% converted to electricity.

Therefore, promptly using the stored heat before reaching the state where the temperature of the hot water decreases with the passage of time as described above is an effective measure for increasing the energy utilization efficiency. In the energy supply system 1, in order to increase the opportunity to use the heat stored in the energy supply unit 10, the stored hot water (heat) is configured to be used by a plurality of energy consumers.
For example, when each energy consumer uses heat (hot water) at the same frequency, when two energy consumers use, that is, when heat (hot water) is used by two loads 20 (heat load 22). When the average use interval is halved and four energy consumers use it, that is, when heat (hot water) is used with four loads 20 (heat load 22), the average use interval is Becomes 1/4. Thus, if the amount of hot water (heat) used at each timing is the same, the shorter the use interval, the smaller the amount of heat loss depending on the passage of time.

In the case of the above estimation, the focus is on the use of heat (warm water). Next, the focus is on the generation of heat.
Consider the case where the timing for generating heat (hot water) is fixed and the timing for generating heat fluctuates. For example, when each energy consumer uses an equal amount of electricity at the same frequency, an equal amount of heat is generated each time electricity is used. Here, when two energy consumers use electricity, the average heat generation interval is halved, and when four energy consumers use electricity, the average heat The generation interval becomes 1/4. Thus, if the amount of electricity to be used is the same, the amount of heat generated at that time becomes equal, and therefore, the shorter the interval between electricity utilization, the smaller the temperature fluctuation range of the stored hot water. Become.
As described above, since the heat generation interval is shortened, the fluctuation range of the amount of stored heat is reduced, so that there is an effect that the temperature of the hot water becomes stable and easy to use when using heat.

  Furthermore, by generating the heat (warm water) and using the heat, a plurality of energy consumers respectively reduce the average value of the period from the heat generation timing to the heat use timing. It becomes possible and heat can be used efficiently. Therefore, the use efficiency of heat can be improved by reducing the average period from the timing of generating heat to the timing of using heat.

(Examination of heat loss)
When the stored heat is supplied as hot water, there is a loss of heat transmitted to the outside of the heat conduit 32 through the wall of the heat conduit 32. The amount of heat lost through the wall of the heat conduit 32 increases in proportion to the length of the heat conduit 32 if the temperature of the hot water in the heat conduit 32 is constant. In short, to reduce this loss, the length of the heat conduit 32 may be shortened.
Therefore, in order to shorten the length of the heat conduit 32 from the energy supply unit 10 to each load 20, each load 20 is disposed so as to surround the energy supply unit 10. The arrangement shown in FIG. 1 is a typical example of a specific arrangement. The heat conduits 32 (energy transfer units 30) can be easily laid on the four buildings 2 from the energy supply unit 10 provided on the site 51.

(About the right to use the site 51 used for distributing the energy supply unit 10)
Here, it is conceivable that the right to use the site 51 is determined as follows.
For example, it can be considered that each energy consumer who receives energy supply from the energy supply unit 10 can use it jointly. In this case, each energy consumer jointly owns or occupies the site 51. Alternatively, the land is owned or occupied by any of the energy consumers who receive energy supply from the energy supply unit 10. Thereby, the route for laying the equipment can be optimized, and further, the workability when laying the equipment and the management after the laying are facilitated.

(Examination when power failure occurs)
The fuel cell receives supply of fuel and electricity, and generates electricity and heat using the supplied fuel and electricity. Some fuel cells continuously generate electricity and heat if fuel is continuously supplied even when the power supply system is cut off and the supply of electricity is stopped. By using a fuel cell having such specifications, the fuel cell can be operated independently even if the power supply system fails. Each energy consumer can also use the electricity generated by the fuel cell operating independently as an emergency power source. In this case, since the fuel cell is generated together with the hot water when generating electricity, the energy can be used effectively even during a power failure.

  Thereby, the energy accommodation system 100 can improve energy utilization efficiency.

(Second Embodiment)
With reference to FIG. 5 and 6, the energy interchange system in one Embodiment of this invention is demonstrated.
FIG. 5 is a plan view for explaining the arrangement of the energy accommodation system 100 in one embodiment of the present invention. The energy accommodation system 100 includes an energy supply system 1A-1, an energy supply system 1A-2, and an accommodation energy transfer unit 40.
A closed area 5-1 and a closed area 5-2 shown in the figure indicate land areas that do not include public roads. Outside of the outer periphery of the closed areas 5-1 and 5-2, the outside is in contact with public roads, public land (not shown), and other closed areas. Between the closed area 5-1 and the closed area 5-2, public roads, public land, other closed areas, etc. (not shown) are arranged.

An energy supply system 1A-1 is arranged in the closed region 5-1, and an energy supply system 1A-2 is arranged in the closed region 5-2.
The closed area 5-1 includes a plurality of sites indicated by reference numerals 51-1, 52-1, 53-1, 54-1 and 55-1. The closed area 5-2 includes a plurality of sites indicated by reference numerals 51-2, 52-2, 53-2, 54-2, and 55-2.
Reference numerals 51-1, 52-1, 53-1, 54-1 and 55-1 in the closed area 5-1, and reference numerals 51-2, 52-2, 53-2 and 54-2 in the closed area 5-2. , 55-2 correspond to the reference numerals 51, 52, 53, 54, 55 in the closed region 5 shown in FIG.

An energy supply unit 10-1 is disposed on the site 51-1. On the other hand, buildings 2-1 are respectively provided on the sites 52-1, 53-1, 54-1, and 55-1. The building 2-1 is, for example, a general household. Each building 20-1 is provided with a load 20-1 that consumes energy during operation. The energy transfer unit 30-1 straddles the site boundary between the site 51-1 and the sites 52-1, 53-1, 54-1 and 55-1 without passing through the public road or across the public road. Is provided. The 1st end of energy conveyance part 30-1 is connected to energy supply part 10-1, and the 2nd end is connected to load 20-1 in building 2-1. The energy transport unit 30-1 connected as described above transports the energy stored in the energy supply unit 10-1 from the energy supply unit 10-1 to the load 20-1.
As described above, the site 51-1 where the energy supply unit 10-1 is arranged is different from the sites 52-1, 53-1, 54-1 and 55-1 where the load 20-1 is arranged. The energy supply unit 10-1 in the energy supply system 1A-1 supplies energy to the loads 20-1 arranged in the sites 52-1, 53-1, 54-1 and 55-1, respectively. .

An energy supply unit 10-2 is disposed on the site 51-2. On the other hand, buildings 2-2 are provided on the sites 52-2, 53-2, 54-2, and 55-2, respectively. The building 2-2 is, for example, a general household. The building 2-2 is provided with a load 20-2 that consumes energy during operation. The energy transfer unit 30-2 straddles the site boundary between the site 51-2 and the site 52-2, 53-2, 54-2, 55-2 without going through the public road or straddling the public road. Is provided. The 1st end of energy conveyance part 30-2 is connected to energy supply part 10-2, and the 2nd end is connected to load 20-2 in building 2-2. The energy transport unit 30 connected as described above transports the energy stored in the energy supply unit 10-2 from the energy supply unit 10 to the load 20.
As described above, the site 51-2 where the energy supply unit 10-2 is arranged is different from the sites 52-2, 53-2, 54-2, and 55-2 where the load 20-2 is arranged. The energy supply unit 10-2 in the energy supply system 1A-2 supplies energy to the loads 20-2 disposed in the sites 52-2, 53-2, 54-2, and 55-2, respectively. .

  As described above, the energy supply unit 10-1 and the energy supply unit 10-2 correspond to the above-described energy supply unit 10 (FIG. 1 and the like). The load 20-1 and the load 20-2 correspond to the aforementioned load 20 (FIG. 1 and the like). The energy transfer unit 30-1 and the energy transfer unit 30-2 correspond to the above-described energy transfer unit 30 (FIG. 1 and the like).

Furthermore, the energy supply part 10-1 and the energy supply part 10-2 have a difference with respect to the energy supply part 10 (FIG. 1) shown below.
The energy supply system 1A-1 and the energy supply system 1A-2 are connected via the interchangeable energy transfer unit 40. The flexible energy transport unit 40 transports energy between the energy supply system 1A-1 (first energy supply system) and the energy supply system 1A-2 (second energy supply system).
That is, the energy supply unit 10-1 and the energy supply according to the energy amounts respectively stored by the energy supply unit 10-1 (first energy supply unit) and the energy supply unit 10-2 (second energy supply unit). One of the energy supply units of the unit 10-2 moves the stored energy to the other energy supply unit. In this way, energy can be transferred between the energy supply system 1A-1 and the energy supply system 1A-2.

  The energy supply unit 10-1 and the energy supply unit 10-2 are for supplying energy between the energy supply unit 10-1 and the energy supply unit 10-2 that supply energy to each load 20. Separates the hierarchy of energy transfer. Thus, by dividing | segmenting into two hierarchy, the energy supply part 10-1 shares energy in the range which supplies energy to the load 20-1, and the energy supply part 10-2 is energy to the load 20-2. Share energy within the supply range. Further, while sharing energy as described above, the energy supply unit 10-1 and the energy supply unit 10-2 share information on the amount of energy that can be supplied with each other, and the supply amount is based on the shared information. Control is performed so that one of the energy supply units determined to be insufficient is supplied with energy from the other energy supply unit. By controlling in this way, when the amount of energy that can be supplied is likely to be insufficient, energy can be accommodated from the other energy supply unit.

In short, the closed area 5-1 and the closed area 5-2 that do not include public roads include a plurality of sites. The energy accommodation system 100 includes an energy supply system 1A-1, an energy supply system 1A-2, and an energy supply system 1A-1 that supply energy to a plurality of loads 20-1 and 20-2 respectively disposed on a plurality of sites. An interchangeable energy transfer unit 40 that transfers energy between the supply system 1A-1 and the energy supply system 1A-2 is provided.
The energy supply system 1A-1 includes a plurality of loads 20-1, an energy supply unit 10-1, and a plurality of energy transfer units 30-1. The energy supply unit 10-1 stores the same type of energy as the type of energy consumed by the plurality of loads 20-1, and supplies a part of the stored energy to each of the plurality of loads 20-1. The stored energy can be exchanged. The energy transfer unit 30-1 is laid in the closed region 5-1 without passing through the public road, and transfers the energy supplied from the energy supply unit 10-1 to the plurality of loads 20-1.
The energy supply system 1A-2 includes a plurality of loads 20-2, an energy supply unit 10-2, and a plurality of energy transfer units 30-2. The energy supply unit 10-2 stores the same type of energy as the type of energy consumed by the plurality of loads 20-2, and supplies a part of the stored energy to the plurality of loads 20-2, respectively. The stored energy can be exchanged. The energy transfer unit 30-2 is laid in the closed region 5-2 without passing through the public road, and transfers the energy supplied from the energy supply unit 10-2 to the plurality of loads 20-2.
Depending on the amount of energy stored in each of the energy supply unit 10-1 and the energy supply unit 10-2, either one of the energy supply unit 10-1 and the energy supply unit 10-2 stores the stored energy. Is moved to the other energy supply unit.
In this way, the energy accommodation system 100 can accommodate the insufficient amount of heat when an insufficient situation occurs. When energy is to be interchanged using the conventional energy supply unit 10Z, it is assumed that a system like the energy interchange system 100Z shown in FIG. 6 is obtained. This figure is an explanatory view showing an energy accommodation system 100Z different from the present embodiment. In the energy interchange system 100Z shown in the figure, even if energy is to be interchanged between energy consumers, the hierarchy as shown in FIG. 5 cannot be established. Therefore, in order to supply energy to the load 20, a path 40 </ b> Z that circulates hot water without leakage between the energy supply units 10 </ b> Z individually provided by energy consumers is provided, and hot water is circulated through all paths 40 at all times. There is a need.
On the other hand, since the energy interchange system 100 in the present embodiment can accommodate only an insufficient amount of heat when an insufficient situation occurs, it is possible to reduce a decrease in temperature caused by circulating hot water. Become.
Thereby, the energy accommodation system 100 can improve energy utilization efficiency.

(Third embodiment)
With reference to FIG. 7, the energy supply system in one Embodiment of this invention is demonstrated. FIG. 2 is a layout diagram for explaining an energy supply system 101 according to an embodiment of the present invention. The energy supply system 101 shown in the figure is a system applied to a building 102 having a plurality of areas respectively occupied by a plurality of energy consumers. A closed area 105 shown in the figure indicates an area of land that does not include a public road. On the outside of the outer periphery of the closed region 105, a public road, public land, other closed regions, etc. (not shown) are in contact. The closed area 105 includes a site 151. A building 102 is constructed on the site 151. The building 102 includes a plurality of exclusive areas 152, 153, 154, 155, and 156 dedicated to each energy consumer, and a shared area. For example, in the site 151, the site boundary is in contact with the outer periphery of the closed region 105. An energy supply unit 10 is disposed on the site 151. On the other hand, loads 20 (FIG. 3: electrical load 21 and thermal load 22) are provided in the exclusive regions 152, 153, 154, 155, and 156, respectively. The energy transfer unit 30 is provided in a common area of the site 151 and the building 102 without going through public roads or straddling public roads. A first end of the energy transfer unit 30 is connected to the energy supply unit 10, and a second end is connected to the load 20 in the building 102. The energy transport unit 30 connected as described above transports the energy stored in the energy supply unit 10 from the energy supply unit 10 to the load 20. As described above, the energy supply system 101 supplies energy to the loads 20 arranged in the exclusive areas 152, 153, 154, 155, and 156, respectively.
In this way, the energy supply system 101 can be applied to the building 102 having a plurality of regions each occupied by a plurality of energy consumers. For a detailed description of the energy supply system 101, refer to the first embodiment. Thereby, the energy supply system 101 can improve energy utilization efficiency.

(Fourth embodiment)
With reference to FIG. 8, the energy interchange system in one Embodiment of this invention is demonstrated. This figure is a layout diagram for explaining an energy accommodation system 100A in an embodiment of the present invention. The energy interchange system 100A shown in the figure is a system when applied to a building 102-1 and a building 102-2 that have a plurality of areas respectively occupied by a plurality of energy consumers.
A closed area 105-1 and a closed area 105-2 shown in the figure indicate areas of land that do not include public roads. Public roads, public land, other closed areas, etc. (not shown) are in contact with the outside of the outer periphery of the closed area 105-1 and the closed area 105-2.
The closed area 105-1 includes the site 151-1. A building 102-1 is constructed on the site 151-1. The building 102-1 includes a plurality of exclusive areas 152-1, 153-1, 154-1, 155-1, and 156-1 that each energy consumer occupies, and a shared area.
For example, the outer periphery of the site 151-1 is in contact with the outer periphery of the closed region 105-1. An energy supply unit 10-1 is arranged on the site 151-1. On the other hand, loads 20-1 (FIG. 3: electric load 21 and thermal load 22) are respectively provided in the exclusive regions 152-1, 153-1, 154-1, 155-1, and 156-1. The energy transfer unit 30-1 is provided in the common area of the site 151-1 and the building 102-1 without going through public roads or straddling public roads. The 1st end of energy conveyance part 30-1 is connected to energy supply part 10-1, and the 2nd end is connected to load 20-1 in building 102-1. The energy transport unit 30-1 connected as described above transports the energy stored in the energy supply unit 10-1 from the energy supply unit 10-1 to the load 20-1.
As described above, the energy supply system 101A-1 supplies energy to the loads 20-1 disposed in the exclusive areas 152-1, 153-1, 154-1, 155-1, and 156-1, respectively. Supply.

Further, the outer periphery of the site 151-2 is in contact with the outer periphery of the closed region 105-2. An energy supply unit 10-2 is arranged on the site 151-2. On the other hand, loads 20-2 (FIG. 3: electric load 21 and thermal load 22) are respectively provided in the exclusive regions 152-2, 153-2, 154-2, 155-2, and 156-2. The energy conveyance unit 30-2 is provided in the common area of the site 151-2 and the building 102-2 without passing through the public road or straddling the public road. The 1st end of energy conveyance part 30-2 is connected to energy supply part 10-2, and the 2nd end is connected to load 20-2 in building 102-2. The energy conveyance unit 30-2 connected as described above conveys the energy stored in the energy supply unit 10-2 from the energy supply unit 10-2 to the load 20-2.
As described above, the energy supply system 101A-2 supplies energy to the loads 20-2 respectively disposed in the exclusive regions 152-2, 153-2, 154-2, 155-2, and 156-2. Supply.

  As described above, the energy supply unit 10-1 and the energy supply unit 10-2 correspond to the above-described energy supply unit 10 (FIG. 1 and the like). The load 20-1 and the load 20-2 correspond to the aforementioned load 20 (FIG. 1 and the like). The energy transfer unit 30-1 and the energy transfer unit 30-2 correspond to the above-described energy transfer unit 30 (FIG. 1 and the like).

Furthermore, the energy supply part 10-1 and the energy supply part 10-2 have a difference with respect to the energy supply part 10 (FIG. 1) shown below.
The energy supply system 1A-1 and the energy supply system 1A-2 are connected via the interchangeable energy transfer unit 40. The flexible energy transport unit 40 transports energy between the energy supply system 1A-1 (first energy supply system) and the energy supply system 1A-2 (second energy supply system).
That is, the energy supply unit 10-1 and the energy supply according to the energy amounts respectively stored by the energy supply unit 10-1 (first energy supply unit) and the energy supply unit 10-2 (second energy supply unit). One of the energy supply units of the unit 10-2 moves the stored energy to the other energy supply unit. Since energy can be moved between the energy supply system 1A-1 and the energy supply system 1A-2 in this way, when the amount of energy that can be supplied is likely to be insufficient, the other energy supply You can get energy from the department.

  In this way, the energy accommodation system 100A can be applied to the buildings 102-1 and 102-2 having a plurality of regions each occupied by a plurality of energy consumers. The detailed description of the energy accommodation system 100A refers to the second embodiment, and the detailed description of the energy supply systems 1A-1 and 1A-2 refers to the first embodiment. Thereby, energy interchange system 100A can raise energy use efficiency.

As a system different from the present embodiment, it is possible to use a heat pipe network owned by a district heating and cooling company for the purpose of sharing heat between energy consumers distributed over a wide range. The target area for district heating and cooling business is limited. Even if it is included in the target area, various problems may arise, such as being burdened with an economic burden for cooperation, difficult to avoid legal issues, and so on. If heat pipes are laid on public roads in the same area without linking with the district heating and cooling business, the heat pipeline network already owned by the district heating and cooling business has already been laid. It becomes difficult to lay.
In addition, under a system different from the present embodiment, even if an attempt is made to expand the heat sharing range by laying a self-employed heat conduit, the heat conduit is laid without crossing public roads or the land of an unspecified number of owners. The range to do increases and it cannot lay easily. Therefore, it is expected that an adjustment to the occupancy right of the range related to the route to be laid for laying the heat conduit will occur, and the route of the energy conveyance path that enables the heat conduit to be laid is limited. When laying heat pipes on restricted routes, it may be necessary to bury underground pipes or install utility poles, resulting in higher construction costs and increased costs due to occupying the installed routes. It was a thing.
On the other hand, in the energy supply system 1 (101) in this embodiment, since the energy conveyance part 30 can be laid without passing through a public road, the energy supply system 1 (101) can be formed easily. Moreover, since the length of the energy conveyance part 30 can be made comparatively short, as mentioned above, the energy supply system 1 (101) can improve energy utilization efficiency.

  The embodiment of the present invention is not limited to the above-described example, and can take various forms within the scope of the present invention.

  Note that a message display control is performed by recording a program for realizing the function of the processing unit in the present invention on a computer-readable recording medium, causing the computer system to read and execute the program recorded on the recording medium. May be performed. Here, “loading and executing a program recorded on a recording medium into a computer system” includes installing the program in the computer system. The “computer system” here includes an OS and hardware such as peripheral devices. Further, the “computer system” may include a plurality of computer devices connected via a network including a communication line such as the Internet, WAN, LAN, and dedicated line. The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. As described above, the recording medium storing the program may be a non-transitory recording medium such as a CD-ROM. The recording medium also includes a recording medium provided inside or outside that is accessible from the distribution server in order to distribute the program. The code of the program stored in the recording medium of the distribution server may be different from the code of the program that can be executed by the energy supply system 1 (1A-1, 1A-2). That is, the format stored in the distribution server is not limited as long as it can be downloaded from the distribution server and installed in a form that can be executed by the energy supply system 1 (1A-1, 1A-2). In addition, after dividing a program into a plurality of parts and downloading them at different timings, the structure combined with the energy supply system 1 (1A-1, 1A-2) and the distribution server that distributes each of the divided programs are different. May be. Furthermore, a “computer-readable recording medium” holds a program for a certain period of time, such as a volatile memory (RAM) inside a computer system that becomes a server or client when the program is transmitted via a network. Including things. The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, what is called a difference file (difference program) may be sufficient.

  In addition, some or all of the functions described above may be realized as an integrated circuit such as an LSI (Large Scale Integration). Each function described above may be individually made into a processor, or a part or all of them may be integrated into a processor. Further, the method of circuit integration is not limited to LSI, and may be realized by a dedicated circuit or a general-purpose processor. In addition, when an integrated circuit technology that replaces LSI appears due to the advancement of semiconductor technology, an integrated circuit based on the technology may be used.

1, 1A-1, 1A-2 energy supply system,
2, 2-1, 2-2 building,
5, 5-1, 5-2, 105, 105-1, 105-2 closed region,
51, 51-1, 51-2 site,
52, 52-1, 52-2, 53, 53-1, 53-2 Site,
54, 54-1, 55-2, 55, 55-1, 55-2 site,
10, 10-1, 10-2 Energy supply unit,
11, 11-1, 11-2 energy conversion unit,
12, 12-1, 12-2 energy storage unit,
13 control unit,
20, 20-A, 20-B, 20-C, 20-D, 20-1, 20-2 load,
21, 21, 21-A, 21-B, 21-C, 21-D, electrical load,
22, 22-A, 22-B, 22-C, 22-D heat load,
30, 30-1, 30-2 Energy transfer unit,
31 power lines, 32 heat conduits, 40 versatile energy transfer units,
101,101A-1,101A-2 Energy interchange system

Claims (5)

A plurality of sites are included in a closed area that does not include public roads, and an energy supply system that supplies energy to a plurality of loads that are respectively arranged on the plurality of sites,
An energy supply unit that stores the same type of energy that is consumed by the plurality of loads, and supplies a part of the stored energy to each of the plurality of loads,
An energy transfer unit that is laid in a closed region without passing through the public road, and transfers energy supplied from the energy supply unit to the plurality of loads;
With
A building is provided for each of the plurality of sites,
The energy transfer unit is
A pipe connecting the heat storage facility and the building as the energy supply unit is provided for each building from the heat storage facility,
The energy supply unit
An energy conversion unit capable of generating energy to be supplied to the plurality of loads based on an amount of primary energy supplied to the energy supply unit from an energy source that supplies a type of energy different from the type of energy; ,
An energy storage unit for storing energy generated by the energy conversion unit;
A control unit for controlling whether or not to supply the energy stored in the energy storage unit to the plurality of loads based on the energy conversion efficiency when the energy consumer uses the energy; and
The controller is
The amount of energy of the primary energy required when supplying the energy stored in the energy storage unit to the plurality of loads is not supplied to the plurality of loads without supplying the stored energy to the plurality of loads. When the energy stored in the energy storage unit is less than the total amount of energy required for supplying energy to the load, the energy stored in the energy storage unit is controlled to be supplied to the plurality of loads.
When the amount of primary energy is larger than the total amount of energy required as energy to be supplied to the load, control is performed so that the energy stored by the energy storage unit is not supplied to a plurality of loads. And energy supply system. The energy conversion unit generates the thermal energy and electricity energy based on the primary energy, supply electrical energy said generated in said plurality of loads,
The energy storage unit stores the generated thermal energy,
The controller is
When the energy amount of the primary energy is less than the total amount of energy required, the thermal energy stored by the energy storage unit is controlled to be supplied to the plurality of loads, or
When the energy amount of the primary energy is larger than the total amount of energy required, control is performed so that the thermal energy stored in the energy storage unit is not supplied to the plurality of loads.
The thermal energy is supplied from the energy storage unit to the load during a time when any one of the plurality of loads after the energy conversion unit generates the thermal energy and the electrical energy consumes the thermal energy. To be
The energy supply system according to claim 1. There is one or a plurality of second sites adjacent to the first site where the energy supply unit is provided, and the load is provided on each of the second sites,
The energy transfer unit is
The energy supply system according to claim 1 or 2, wherein the energy supply system is laid across one site boundary between the first site and the second site. A plurality of sites are included in a closed area that does not include public roads, and an energy supply method for supplying energy to a plurality of loads respectively disposed on the plurality of sites,
Storing energy of the same type as the energy consumed by the plurality of loads, and supplying each of the stored energy to the plurality of loads by an energy supply unit;
An energy carrying unit that is laid in a closed region without passing through the public road and that is supplied from the energy supply unit to the plurality of loads;
The energy use efficiency with respect to the total amount of energy consumed by the plurality of loads is increased with respect to the amount of energy supplied to the energy supply unit from an energy source that supplies energy of a type different from the type of energy. Determining a method of supplying energy to be supplied to the load;
Including
Determining an energy supply method of supplying the load,
Electric energy and thermal energy supplied from the primary energy supplied from the energy source to the energy supply unit to the plurality of loads are generated by an energy conversion unit, and the generated electric energy and the generated electric energy are generated. The energy conversion efficiency for the amount of energy supplied from the energy source is calculated based on the heat amount of the thermal energy, and the energy is generated based on the energy conversion efficiency when the energy consumer uses the energy. and the thermal energy stored in the energy storage unit which thermal energy is supplied to determine whether to supply to the plurality of load as the method of supplying the energy comprises the step of controlling according to the result of the decision,
The controlling step includes
The amount of energy of the primary energy required when supplying the energy stored in the energy storage unit to the plurality of loads is not supplied to the plurality of loads without supplying the stored energy to the plurality of loads. Controlling to supply the energy stored in the energy storage unit to the plurality of loads when the total amount of energy required for supplying energy to the load is less than the total amount of energy required to supply the load. ,
Controlling the energy stored in the energy storage unit not to be supplied to a plurality of loads when the amount of primary energy is greater than the total amount of energy required as energy to be supplied to the load. An energy supply method comprising: A plurality of sites are included in a closed area that does not include public roads, and a computer of an energy supply system that supplies energy to a plurality of loads respectively arranged on the plurality of sites,
Storing energy of the same type as the energy consumed by the plurality of loads, and supplying each of the stored energy to the plurality of loads by an energy supply unit;
An energy transfer unit that conveys energy that is laid on the plurality of sites without passing through the public road and is supplied from the energy supply unit to the plurality of loads;
The energy use efficiency with respect to the total amount of energy consumed by the plurality of loads is increased with respect to the amount of energy supplied to the energy supply unit from an energy source that supplies energy of a type different from the type of energy. Determining a method of supplying energy to be supplied to the load;
In the step of determining a method of supplying energy to be supplied to the load,
Electric energy and thermal energy supplied from the primary energy supplied from the energy source to the energy supply unit to the plurality of loads are generated by an energy conversion unit, and the generated electric energy and the generated electric energy are generated. The energy conversion efficiency for the amount of energy supplied from the energy source is calculated based on the heat amount of the thermal energy, and the energy is generated based on the energy conversion efficiency when the energy consumer uses the energy. and the thermal energy stored in the energy storage unit which thermal energy is supplied to determine whether to supply to the plurality of load as the method of supplying the energy for performing and controlling according to the result of the determination a program,
The controlling step includes
The amount of energy of the primary energy required when supplying the energy stored in the energy storage unit to the plurality of loads is not supplied to the plurality of loads without supplying the stored energy to the plurality of loads. Controlling to supply the energy stored in the energy storage unit to the plurality of loads when the total amount of energy required for supplying energy to the load is less than the total amount of energy required to supply the load. ,
Controlling the energy stored in the energy storage unit not to be supplied to a plurality of loads when the amount of primary energy is greater than the total amount of energy required as energy to be supplied to the load. A program to be executed.

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