JP2848501B2 - Energy supply method and power supply method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for controlling the amount of energy purchased.

[0002]

2. Description of the Related Art Conventionally, energy such as electric power and gas has been supplied from energy suppliers such as electric power companies and gas companies. The energy supplied from the energy supplier was consumed as it was.

[0003]

However, the conventional technology merely consumes the supplied energy, and does not cope with a case where the unit price of energy changes with time. The present invention solves the above-described problems, and when the unit price of energy changes for each time zone,
The purpose of the present invention is to provide a technology for reducing the purchase price of energy.

[0004]

Means for Solving the Problems] energy supplying method of the invention of claim 1, an energy purchase means purchase energy from outside, and energy storage means for storing the energy purchased by the energy purchasing instrument, the energy savings
The amount of energy to be stored in the storage means
And the energy consumption for each hour of the day before the energy consumption day
Predetermined time of energy consumption day estimated based on quantity
A storage control means for storing the energy consumption in the range, and an energy supply means for supplying the energy stored in the energy storage means to the energy consumption means within a predetermined time range of the energy consumption day. I do.

[0005] Power supply method <br/> to the air conditioner of the second aspect of the present invention, a power purchase means purchase power from outside, the collector
A heat storage tank for storing the electric power purchased by the power purchasing means as heat energy, and a heat energy amount stored in the heat storage tank as heat energy.
Day of the week of energy consumption and the day before the day of heat energy consumption
Estimated based on the heat energy consumption per hour
Heat energy consumption in the specified time range on the heat energy consumption day
And heat energy storage control means for storing only
The stored heat energy is converted into the heat energy consumption date
Thermal energy supply means for supplying to the air conditioner in a predetermined time range;
The gist is to provide.

A method for supplying power to an air conditioner according to a third aspect of the present invention.
Is a means for purchasing power from outside
Power purchased by power purchasing means is stored as heat energy.
Heat storage tank and the daytime heat energy consumption
Means for determining whether the heat storage capacity is greater than the heat storage capacity of the heat tank;
If it is determined that the heat energy is large,
When it is judged that the capacity is full in the heat storage tank and is judged to be small
Estimates the amount of heat consumed the next day and stores that amount of heat energy
Storage amount purchase control means, and stored in the heat storage tank.
Heat energy supply means for supplying heat energy to the air conditioner;
The point is to prepare.

[0007] A method for supplying power to an air conditioner according to a fourth aspect of the present invention.
The heat energy supply means is stored in the heat storage tank
Preferentially supply heat energy to the air conditioner during the daytime on the following day.
The air conditioner according to claim 3,
The power supply method is the gist. The energy supply according to the invention of claim 5
Energy is purchased by purchasing energy from outside
Means and energy purchased by the above energy purchasing means
Energy storage means for storing energy, and the energy storage means
The amount of energy stored in the stage depends on the day of the week of energy consumption
Storage amount control means for controlling the energy storage means;
To supply stored energy to energy consuming means.
The gist of the present invention is to include an energy supply means.

[0008] A method for supplying power to an air conditioner according to the invention of claim 6
Is a means for purchasing power from outside
Power purchased by power purchasing means is stored as heat energy.
Heat storage tank, and the amount of heat energy stored in the heat storage tank
Thermal energy storage controlled by day of the week of energy consumption
Quantity control means and thermal energy stored in the heat storage tank
Energy supply means for supplying air to the air conditioner
Is the gist.

[0009]

According to the first aspect of the present invention , the energy purchasing means purchases energy from outside and the purchased energy is consumed by the energy consuming means.
The column is the energy consumption day of the week and the energy of the previous day.
Estimate the consumption in a predetermined time range based on the consumption of gear
Energy is stored in the energy storage
To store.

On the other hand, the energy supply means is used for energy consumption.
Stored in the energy storage means within a predetermined time range of the day.
Energy to the energy consuming means. As a result, when the purchase price of energy changes depending on the time of day, it is estimated when the price is low and when it is expensive.
And save it when it's expensive or cheap.
It is possible to consume what you have spent.

According to a second aspect of the present invention, there is provided a method for supplying power to an air conditioner.
The power purchasing means purchased power from outside, and this purchased
Electricity is consumed by the air conditioner, but thermal energy storage control means
Is the heat energy consumption day of the week and the heat energy
Energy consumption within a predetermined time range based on
Estimate the amount of lugi and store it in the heat storage tank by the amount of heat energy consumed.
Store with thermal energy.

On the other hand, the thermal energy supply means
Heat stored in the heat storage tank within a predetermined time range of the consumption day
Supply energy to the air conditioner. This allows the purchase of electricity
When the price changes depending on the time of day, when it is cheap,
Store heat energy by estimating the amount consumed when expensive
Heat that was stored when it was expensive or cheap
Energy can be used.

According to a third aspect of the present invention, there is provided a method of supplying power to an air conditioner.
The power purchasing means purchased power from outside, and this purchased
Electricity is consumed by the air conditioner.
Means for determining whether the heat energy consumption during the daytime is large
Is large, the storage purchase control means
Thermal energy created by electric power can be stored up to the capacity of the thermal storage tank.
On the other hand, if it is determined to be small,
Estimate and store heat energy by that amount.

The heat energy supply means is provided in the heat storage tank.
The stored heat energy is supplied to the air conditioner. this
The power purchase price changes depending on the time of day
The heat energy consumed when it is cheap and when it is expensive
Keep in stored, when it is expensive, dude stored when inexpensive
Heat energy can be used and
If the daily heat energy consumption is large, the capacity of the heat storage tank
Stores up to full amount of heat, maximizing the effect of reducing electricity purchase fees
Enjoy the fruit while the heat energy consumption of the next day is small.
If necessary, store as much heat energy as necessary to consume the next day.
And save it by consuming it
To minimize losses due to conversion and leakage during storage
Can be done.

According to a fourth aspect of the present invention, there is provided a method of supplying power to an air conditioner.
The power purchasing means purchased power from outside, and this purchased
Electricity is consumed by the air conditioner.
Means for determining whether the heat energy consumption during the daytime is large
Is large, the storage purchase control means
Thermal energy created by electric power can be stored up to the capacity of the thermal storage tank.
On the other hand, if it is determined to be small,
Estimate and store heat energy by the heat consumption.

The heat energy supply means is provided in the heat storage tank.
The stored thermal energy is preferentially emptied during the daytime on the following day.
Supply to the controller. As a result, the power purchase price is
When it changes, when it's cheap, when it's expensive
Store the heat energy to be consumed,
Preferentially use thermal energy stored when it is valuable
And the next day's heat energy consumption
Is large, heat is stored to the full capacity of the heat storage tank,
To a large extent, enjoy the effect of reducing electricity purchase fees, while
If the heat energy consumption is small, the next day
Store as much heat energy as necessary and consume it
So that conversion for storage and leakage during storage
Can be minimized.

According to a fifth aspect of the present invention, there is provided an energy supply method comprising:
The purchasing means purchases energy from outside, and this purchase
Energy is consumed by energy consuming means,
The control means stores energy according to the day of the energy consumption day
Control the energy stored in the means.

On the other hand, the energy supply means
The energy stored in the energy storage means
Supply to energy consumption means. This allows energy purchasing
When the entry price changes depending on the time of day, when it is cheap
Estimate and save only what you consume when expensive
Consumes what is stored when expensive and cheap
It becomes possible to do.

According to a sixth aspect of the present invention, there is provided a method for supplying power to an air conditioner.
The power purchasing means purchased power from outside, and this purchased
Although electric power is consumed by the air conditioner, thermal energy storage
Stages store thermal energy in thermal storage tanks according to the day of the week
Control thermal energy. On the other hand, the thermal energy supply means
On the day of thermal energy consumption, the heat energy stored in the thermal storage tank
Supply lugi to air conditioners.

As a result, the purchase price of the power
Consumption when it is cheap and expensive
Estimate the amount of heat energy to be stored and save
Sometimes, use the thermal energy stored when it is cheap
It becomes possible.

[0021]

Next, embodiments of the present invention will be described. FIG. 1 is an overall configuration diagram of the house energy control system 1. The house energy control system 1 includes a service entrance 2, an electricity meter 3, an electromagnetic switch 5, a current sensor 7, branch switches 9, 10,
11, 12, 13, the power unit 15, and the air conditioner 1
7 and a control device 19.

FIG. 2 is a configuration diagram of the power unit 15. The power unit 15 includes a power selling charging unit 29,
Storage battery unit 31, inverter unit 33, input / output changeover switches 35 and 36, communication interface 3
7, a current sensor 41, and terminals 48 and 49.

The terminal 48 is connected to the branch switch 9 as shown in FIG. The terminal 49 is connected to the control device 19. The power selling charging unit 29 includes a power selling connection terminal 29A, an output terminal 29B, and a control terminal 29C. The power selling connection terminal 29A is connected to the input / output switch 3
5 is connected to the terminal 48. Output terminal 29B
Is connected to the input / output switch 36. The control terminal 29C is connected to the communication interface 37. The power selling charging unit 29 controls the charging amount according to a signal applied to the control terminal 29C.

The storage battery unit 31 is connected to an input / output switch 36 via a current sensor 41. The inverter unit 33 includes an input terminal 33A and an output terminal 3
3B and a control terminal 33C. Input terminal 33
A is connected to the input / output switch 36. The output terminal 33B is connected to the input / output switch 35. The control terminal 33C is connected to the communication interface 37. The inverter unit 33 includes an input terminal 33
A is converted from the DC applied to A into AC power, and the output terminal 3
Output to 3B. The signal applied to the control terminal 33C is
Controls the amount of conversion power.

The input / output changeover switch 35 includes a changeover switch 35A, an operation coil 35B, terminals 35C, 35D,
35E. The operation coil 35B is connected to the communication interface 37. The terminal 35C is connected to the terminal 48. Terminal 35D is a power selling connection terminal 2
9A, and the terminal 35E is connected to the output terminal 33B. The changeover switch 35A selectively connects the terminal 35C and the terminal 35E or the terminal 35C and the terminal 35D. The operation coil 35B switches the changeover switch 35A.

The input / output changeover switch 36 includes a changeover switch 36A, an operation coil 36B, terminals 36C and 36D,
36E. The operation coil 36B is connected to the communication interface 37. The terminal 36C is connected to the storage battery unit 31 via the current sensor 41. Terminal 36D is connected to input terminal 33A, and terminal 3
6E is connected to the output terminal 29B. The changeover switch 36A selectively connects the terminal 36C and the terminal 36E or the terminal 36C and the terminal 36D.
The operation coil 36B switches the changeover switch 36A.

The current sensor 41 includes an input / output switch 3
6 and the storage battery unit 31, and outputs a current value to the communication interface 37. The communication interface 37 has a serial side connected to the terminal 49 and a parallel side connected to each unit in the power unit 15. The communication interface 37 performs data communication with the control device 19.

FIG. 3 shows a configuration diagram of the air conditioner 17. The air conditioner 17 includes a heat pump unit 61, heat exchanger units 63 and 65, a heat storage tank unit 67,
9, 71, 73, pumps 75, 77, solenoid valve 79
, A power board 81, a control device 83, and a refrigerant pipe 85.

The heat pump unit 61 discharges the cooled or heated refrigerant from the output side 61A and sucks the returned refrigerant from the input side 61B. Heat exchanger unit 6
3, 65 sucks refrigerant from the input sides 63A, 65A, and after heat exchange, discharges them to the output sides 63B, 65B. The heat exchanger units 63 and 65 include control units 63C and 6
5C, input air temperature sensors 63D and 65D, output air temperature sensors 63E and 65E, and blowers 63F and 65F. The control units 63C and 65C are connected to the control device 83, and are also connected to the air temperature sensors 63D and 65D, the air temperature sensors 63E and 65E, and the blowers 63F and 65F. The control units 63C and 65C control the operation states of the heat exchange units 63 and 65, calculate the amount of heat consumed by these units, and transmit the calculated amounts of heat to the control device 83. The heat consumption is calculated based on the operation amounts of the fans 63F and 65F and the input and output temperatures.

The heat storage tank unit 67 draws the refrigerant from the input side 67A, exchanges heat with the heat storage medium, and discharges the refrigerant to the output side 67B. The refrigerant pipe 85 includes an output side 61A of the heat pump unit 61, a port 79A of the solenoid valve 79,
The connection between the input sides 63A and 65A of the heat exchanger units 63 and 65, the input side 61B of the heat pump unit 61, the port 79B of the solenoid valve 79, and the output sides 63B and 65B of the heat exchanger units 63 and 65 are provided. Connect between The refrigerant pipe 85 is connected to the port 79C of the solenoid valve 79.
And the input side 67A of the heat storage tank unit 67, and the port 79D of the solenoid valve 79 and the output side 67B of the heat storage tank unit 67. The refrigerant pipe 85 is
It has a bifurcated portion 85A.

The electromagnetic on-off valve 69 is interposed between the output side 61A of the heat pump unit 61 and the bifurcation 85A. The solenoid on-off valve 73 is connected to the two branch portion 85A and the port 7
9A. The solenoid valve 71 is interposed between the bifurcated portion 85 and the input sides 63A and 65A.
The pump 75 is interposed between the bifurcation 85 and the solenoid valve 71. The pump 77 is connected to a port 79C of the solenoid valve 79.
And the input side 67A. Power board 81
Are connected to and supply power to pumps 75, 77.

The control device 83 includes electromagnetic on-off valves 69, 71,
73 and a solenoid valve 79. Air conditioner 17
As shown in Table 1, each part is operated, and the normal cooling mode, the cold heat storage mode, the heat storage cooling mode, the heat radiation cooling mode, the normal heating mode, the heat storage mode, the heat storage heating mode, and the heat radiation heating mode are performed.

[0033]

[Table 1]

In the normal cooling mode and the normal heating mode, the heat pump unit 61 and the heat exchanger unit 6
3 and 65. In the cold heat storage mode and the heat storage mode, cold heat or heat generated by the heat pump unit 61 is stored in the heat storage tank unit 67. In the heat storage cooling mode and the heat storage heating mode, the cold or heat generated by the heat pump unit 61 is supplied to the heat storage tank unit 67 and the heat exchanger units 63 and 65. The radiating cooling mode and the radiating heating mode use the heat stored in the heat storage tank unit 67, or the heat, in the heat exchanger unit 63,
65.

FIG. 4 is a configuration diagram of the control device 19. The control device 19 includes an input interface 131 and the CPU 1
33, a ROM 135, a RAM 137, an output interface 139, a communication interface 141, a keyboard 143, a display 145, an external storage device 147, and a solar radiation prediction device 151. The solar radiation prediction device 151 is connected to the input interface 131, judges the future weather condition from the regional characteristics of the measurement point and the change state of the atmospheric pressure, estimates the amount of solar radiation on the next day, and instructs the CPU 133 It is a device that outputs predictions.

Next, the processing executed by the control device 19 will be described. The home energy control system 1 controlled by the control device 19 has the following specifications in each part. The storage battery unit 31 has a capacity QB [KVA] capable of supplying almost the amount of power used in a day in a house.

The total load capacity of the house is calculated as QJ [KVA].
And Electricity sales will be charged separately for daytime and nighttime. FIG.
9 is a flowchart of a consumption learning routine.
The consumption learning routine is started by the CPU 133 at predetermined time intervals. First, a current consumption value is input (S2300). The consumed current value is obtained by inputting the instruction value of the current sensor 7 via the input interface 131. After the input of the current consumption value, the power consumption for each time is calculated (S2310). Next, the average power consumption for each hour on the same day of the previous week is read (S2).
320). The average power consumption for each hour of the previous week is RAM1
Input from 37.

Next, the average power consumption for each hour of the previous week is corrected with the power consumption for today to calculate the average power consumption for each hour for today (S2330).
AM 137 is stored in the area of the day of the week (S234).
0). By this consumption learning routine, the average power consumption for each day of the week and for each hour is created in the RAM 137 as a table.

Next, a first embodiment will be described. FIG. 6 is a flowchart of a charge / discharge control processing routine. The charge / discharge control process is executed by the CPU 133. When this process is started, first, the amount of power consumed in the daytime on the next day is calculated (S2400). This is a process executed when a predetermined time at night has been reached.
It is calculated by integrating the average power consumption stored in 37 for the daytime hours.

Next, it is determined whether the amount of power consumed in the daytime on the following day is larger than the capacity of the storage battery (S2410). The capacity of the storage battery is input from the keyboard 143 in advance. If it is determined that the power consumption is larger than the capacity of the storage battery, the storage battery is fully charged at night (S
2420). For full charge, the output value of the current sensor 41 is monitored and the storage battery unit 3 is charged until the charged amount reaches a predetermined value.
This is done by charging 1.

On the other hand, when it is determined that the power consumption of the next day is not larger than the capacity of the storage battery, the storage battery is charged at night with the power consumption of the daytime of the next day (S2430).
In S2420 or S2430, the electric power charged in the storage battery unit 31 is preferentially discharged in the daytime (S2440). In other words, prior to receiving power from the outside,
The power of the storage battery unit 31 is consumed.

According to the first embodiment described above, an extremely excellent effect is obtained that inexpensive nighttime power can be used in the daytime and the power rate can be reduced. Moreover,
Since charging is performed only by the consumption amount of the next day, the loss due to charging and discharging can be reduced as much as possible.

Next, a second embodiment will be described. FIG. 7 is a flowchart of the charge control process, and FIG. 8 is a flowchart of the discharge control process. These are both activated by the CPU 133 at predetermined time intervals. When the charge control process is started, first, the remaining amount of the storage battery is calculated (S2500). The remaining amount of the storage battery is calculated based on the integrated value of the output value of the current sensor 41. That is, the remaining amount is estimated from the integrated value of the charge / discharge amount.

Next, it is determined whether there is a day / night rate difference (S2510). Whether or not there is a day / night rate difference is input in advance from the keyboard 143. If it is determined that there is a charge difference, it is determined whether the remaining amount of the storage battery is equal to or less than a predetermined value (S2530). If it is equal to or less than the predetermined value, it is determined whether the current consumption is equal to or less than the charge permission value (S2540). The current consumption is calculated from the output of the current sensor 7. The charging permission value is input in advance from the keyboard 143. Normally, the charging permission value is set to a value smaller than the current consumption.

If the current consumption is larger than the charge permission value, the present routine is temporarily terminated. In other words, when the power consumption in other parts is large, the surplus current to be charged is small, and thus the processing routine ends without performing charging. On the other hand, when the current consumption is equal to or less than the charging permission value,
Next, charging is performed until the storage battery reaches a fully charged state (S
2520). When the battery is fully charged, the remaining battery capacity is almost 10
This is when the state becomes 0%.

If there is a day / night charge difference and the remaining battery power is greater than a predetermined value (S2530), it is determined whether or not it is night (S2550). That is, it is determined whether or not the power rate is low. If it is not at night, this routine is temporarily terminated. If it is at night, the process proceeds to a process of determining whether or not the current consumption is equal to or less than the charge permission value (S2540). Thereafter, if the value is equal to or less than the permission value, a full charge is executed (S2520).

If it is determined that there is no day / night charge difference (S2510), a process of setting the storage battery to a fully charged state is performed (S2520). According to the charging control process described above, charging can be performed at night when the nighttime power rate is low, and charging can be performed immediately when the capacity of the storage battery becomes extremely small.

When the discharge control process shown in FIG. 8 is started, first, the current consumption (the amount of inflow from the outside) is calculated (S260).
0). The current consumption is obtained from a signal from the current sensor 7. Next, it is determined whether the current consumption is equal to or more than the upper limit (S2610). The upper limit value is input in advance from the keyboard 143. Here, a value slightly smaller than the contract current value is set.

If the current consumption has not reached the upper limit value, the process directly proceeds to the next process. If the current consumption is equal to or higher than the upper limit value, a process for discharging at a predetermined rate is executed next (S2).
620). That is, when the current consumption is equal to or higher than the upper limit value, a process of increasing the current value discharged from the storage battery unit 31 at a predetermined increase rate and suppressing the current value flowing from the outside is executed.

After the processing of S2610 or S2620, it is determined whether the current consumption is equal to or less than the discharge end value (S2).
630). The discharge end value is input in advance from the keyboard 143. The discharge end value is set to a value smaller than the upper limit value. Here, if the current consumption is larger than the discharge end value,
This routine is once ended as it is, and if it is below, the discharge is stopped next (S2640). In other words, when the current consumption becomes small and there is no possibility of exceeding the upper limit,
Discharge is stopped in order to prevent consumption of the storage battery unit 31 and reduction in efficiency.

According to the second embodiment described above, it is possible to suppress the current consumption from exceeding the upper limit. As a result, the contracted capacity can be set lower, and the power rate and the equipment cost can be reduced. Next, a third embodiment will be described.

FIG. 9 is a flowchart of the heat storage / radiation control process. This process is started by the CPU 133 every predetermined time. When the process is started, the user first inputs the amount of consumed heat (S2700). The heat consumption is input from the control device 83. Next, the amount of heat consumed during the day is calculated (S2).
710). The daytime heat consumption is calculated by integrating the heat consumption during a time period when the power rate is high. Next, it is determined whether the amount of heat consumed during the day is larger than the heat storage capacity (S2720). The heat storage capacity is a value input in advance from the keyboard 143, and the facility capacity is set.

If it is determined that the amount of heat consumed during the day is larger than the heat storage capacity, then the full heat storage is performed at night (S273).
0). That is, during the night when the electricity rate is low, the heat pump unit 61 is operated to perform the full heat storage in the heat storage tank unit 67. On the other hand, when the daytime heat consumption is equal to or less than the heat storage capacity, the next day's heat consumption is estimated based on the daytime heat consumption (S2740). The amount of heat consumed the next day is the amount of heat consumed during the day. Next, the heat consumption of the next day at night is stored (S2750). In other words, during nights when electricity rates are cheap, the amount of heat that is expected to be consumed the next day,
The heat is stored in the heat storage tank unit 67.

In S2730 or S2750, after the heat storage process is performed, the stored heat is first released in the daytime (S2760). Thereby, the stored heat is preferentially consumed in the daytime. According to the third embodiment described above, heat can be stored using inexpensive power at night and consumed during the day. In addition, since the consumption amount of the next day is estimated and the heat is stored only by the consumption amount, a large amount of heat is stored and the heat efficiency is not reduced.

The present invention is not limited to the above embodiment, and various embodiments can be made without departing from the spirit of the present invention. For example, although the above-described embodiment relates to the technology related to the reception of electric power, the present invention is not limited thereto, and the present invention can be applied to the case of purchasing thermal energy or fluid energy such as other gas. It can be implemented without changing the gist.

[0056]

According to the first aspect of the present invention, there is provided an energy supply method comprising:
If the purchase price of the formate is you change the time of day, inexpensive
Sometimes, save the energy you consume when expensive
Energy that is stored when expensive and cheap
Can be consumed, and stored when it is cheap.
Energy consumption on the day of the energy consumption day and hourly
Only the amount estimated based on the cost amount can be used.
This allows us to store as much energy as we need to consume
To save it by consuming it
To minimize losses due to conversion and leakage during storage.
Energy purchases as much as possible.
It has a very good effect of coming.

According to a second aspect of the present invention, there is provided a method of supplying power to an air conditioner.
Inexpensive when the power purchase price changes over time
Estimate only the amount consumed when expensive
Store it in the form of a gi, and store it when it is expensive or cheap.
It is possible to use the heat energy that has been saved. This
This allows us to store as much heat energy as we need to consume
In order to consume it, conversion and storage for storage
The loss due to leakage inside can be minimized,
It is extremely possible to reduce the purchase price as much as possible
It has excellent effects.

According to a third aspect of the present invention, there is provided a method of supplying power to an air conditioner.
Inexpensive when the power purchase price changes over time
Sometimes, store the heat energy consumed when expensive
Thermal energy stored when expensive and cheap
Energy and the next day's heat
If the consumption of lugi is large, fill up to the capacity of the heat storage tank.
Accumulate heat and enjoy maximum reduction in electricity purchase fees
On the other hand, if the heat energy consumption of the next day is small,
Store enough heat energy to consume,
By consuming it, you can convert it for storage,
Losses due to leakage during storage can be minimized.
This will increase equipment utilization efficiency and purchase energy
Extremely excellent in that the effect of reducing the amount can be achieved together
It has the effect.

According to a fourth aspect of the present invention, there is provided a method of supplying power to an air conditioner.
Inexpensive when the power purchase price changes over time
Sometimes, store the heat energy consumed when expensive
Te, when expensive, heat energy which has been stored when inexpensive
And the next day
If the heat energy consumption is large, the capacity of the heat storage tank
Stores up to one cup of heat, maximizing reduction in electricity purchase fees
While the heat energy consumption of the next day is small
Store as much heat energy as necessary and turn it off.
By spending it, you can convert
Leakage losses can be minimized. This
Increase the efficiency of use of heat storage tanks and reduce the amount of electricity purchased
The extremely excellent effect that can be achieved together with the effect
I do.

According to a fifth aspect of the present invention, there is provided an energy supply method comprising:
If the purchase price of the
Estimate the amount to be consumed when expensive, taking into account the day of the week.
And save it when it's expensive or cheap.
It is possible to consume what you have spent.

As a result, as much heat as necessary to consume
Store energy and consume it
To minimize losses due to conversion for storage and leakage during storage
To reduce energy purchases
This is an extremely excellent effect that can be achieved.

The method for supplying power to the air conditioner according to claim 6 is
Inexpensive when the power purchase price changes over time
Sometimes, consider the amount consumed when expensive, taking into account the day of the week,
And store that amount with thermal energy,
Use the heat energy stored at a low cost
It becomes possible.

As a result, as much heat as necessary to consume
Store energy and consume it
To minimize losses due to conversion for storage and leakage during storage
Power consumption can be reduced.
It has a very good effect of coming.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a house energy control system 1.

FIG. 2 is a configuration diagram of a power unit 15;

FIG. 3 is a configuration diagram of an air conditioner 17;

FIG. 4 is a configuration diagram of a control device 19.

FIG. 5 is a flowchart of a consumption learning processing routine.

FIG. 6 is a flowchart of a charge / discharge control processing routine.

FIG. 7 is a flowchart of a charge control process.

FIG. 8 is a flowchart of a discharge control process.

FIG. 9 is a flowchart of a heat storage / radiation control process.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1: Housing energy control system, 2: Entrance, 3: Electricity meter, 5: Electromagnetic switch, 7: Ammeter, 9: Branch switch,
13 ... water heater, 15 ... power unit, 17 ... air conditioner,
19 ... Control device, 29 ... Power selling charging unit, 29A ... Power selling connection terminal, 29B ... Output terminal, 29C ... Control terminal, 3
1 ... storage battery unit, 33 ... inverter unit, 33
A: input terminal, 33B: output terminal, 33C: control terminal,
35 ... I / O switch, 35A ... Switch, 3
5B: operation coil, 35C: terminal, 35D: terminal, 35
E: terminal, 36: input / output changeover switch, 36A: changeover switch, 36B: operation coil, 36C: terminal, 36D ...
Terminal, 36E terminal, 37 communication interface, 41
... current sensor, 48 ... terminal, 49 ... terminal, 61 ... heat pump unit, 61A ... output side, 61B ... input side, 6
3: heat exchange unit, 63: heat exchanger unit, 63A
... input side, 63B ... output side, 63C ... control unit, 6
3D: air temperature sensor, 63E: air temperature sensor, 63F ...
Blower, 67: heat storage tank unit, 67A: input side, 67
B: output side, 69: solenoid on-off valve, 71: solenoid valve, 73 ...
Solenoid on-off valve, 75 pump, 77 pump, 79 solenoid valve, 79A port, 79B port, 79C port, 79D port, 81 power panel, 83 control device,
85: bifurcation, 85: refrigerant pipe, 85A: bifurcation, 9
1: Hot water tank, 93: heater, 95: solenoid valve, 96:
Solenoid valve, 97: temperature sensor, 99: water amount sensor, 101
... control device, 103 ... water supply pipe, 105 ... water supply pipe, 131
... input interface, 139 ... output interface,
141: communication interface, 143: keyboard, 1
45 ... display, 147 ... external storage device, 151 ...
Solar radiation prediction device

Claims (6)

(57) [Claims] An energy purchasing means for purchasing energy from the outside, an energy storing means for storing energy purchased by the energy purchasing means, and a storage amount for storing the energy in the energy storing means.
Energy consumption on the day of the consumption day and the hour before the energy consumption day
Energy consumption estimated based on energy consumption
A storage system that stores only the amount of energy consumed within a certain time range of the day
And control means, the energy supply side and a energy supply unit for supplying the energy consuming unit in a predetermined time range of consumption date of the energy of the energy stored in said energy storage means
Law . 2. A power purchase means purchase power from outside, and a heat storage tank for <br/> stored in thermal energy power purchased by the purchasing power means, the heat energy amount to be stored in the heat storage tank, heat Energy consumption
The heat of each hour of the day of the spending day and the day before the day of the thermal energy consumption
Heat energy estimated based on energy consumption
Store only the amount of heat energy consumed within a predetermined time range on the consumption day
Thermal energy storage control means, and the thermal energy stored in the thermal storage tank
Heat energy to be supplied to the air conditioner in a specified time range on the energy consumption day
A method for supplying power to an air conditioner, comprising: 3. Power purchasing means for purchasing power from outside
When, The power purchased by the above power purchase means is converted to heat energy
A heat storage tank for storing, The amount of heat energy consumed during the daytime of the next day
Means for determining whether the amount is greater than If the above determination means determines that the heat energy is large,
Was stored in the thermal storage tank up to its full capacity and judged to be small.
In that case, estimate the heat consumption of the next day and
Storage amount purchase control means for storing; Supply the thermal energy stored in the heat storage tank to the air conditioner
Thermal energy supplier Power supply to air conditioner with steps
Method. 4. The heat energy supply means is connected to the heat storage tank.
Priority air conditioning of stored thermal energy during the daytime of the next day
4. An empty space according to claim 3, wherein the empty space is supplied to the machine.
How to supply power to the controller. 5. Energy to purchase energy from outside
Means of purchase, Stores energy purchased by the above energy purchasing means
Energy storage means, The amount of energy stored in the energy storage means is
Storage amount control means for controlling according to the day of the consumption day; The energy stored in the energy storage means is
Energy supply means for supplying to the lugi consuming means.
Energy supply method. 6. Power purchasing means for purchasing power from outside
When, The power purchased by the above power purchase means is converted to heat energy
A heat storage tank for storing, The amount of heat energy stored in the heat storage tank is
Thermal energy storage amount control means for controlling according to the day of the expenditure day
When, Supply the thermal energy stored in the heat storage tank to the air conditioner
Power supply to an air conditioner having a heat energy supply means
Method.