JPH06241530A - Controlling method of heat storage equipment - Google Patents

Abstract

PURPOSE:To make the operation of heat storage equipment efficient by operating at least one heat storage device in accordance with a difference between the residual quantity of stored heat at the time of the start of a midnight power time zone and the maximum quantity of stored heat and by making the quantity of stored heat maximum at the time of the end of the midnight power time zone. CONSTITUTION:A difference between the residual quantity Qm of stored heat and the maximum storable quantity of heat is determined at the time of the start of a midnight power time zone T1, at least one heat storage device is operated in accordance with the difference and the quantity of stored heat is made maximum at the time of the end of the midnight power time zone T1. A time period from 22:00 to 8:00 being made the midnight power time zone T1, in other words, the quantity of stored heat is made maximum at 8:00 when this midnight power time zone T1 is ended. According to this constitution, the operation of heat storage equipment can be made efficient.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to heat storage source control for building management systems and the like, and more particularly to a heat storage equipment control method suitable for controlling the operation of heat storage equipment having a heat storage tank.

[0002]

2. Description of the Related Art In a conventional heat storage facility control method, as shown in Japanese Patent Laid-Open No. 63-135746, heat storage operation of a heat storage facility is performed in the midnight power time zone, and heat is radiated after the midnight power time zone ends. It is described to do. However, there is no disclosure about a control method for maximizing the heat storage amount at the end of the midnight power time zone, or a method for supplementing the heat storage amount that is likely to be insufficient during the daytime time zone.

Further, as to a heat storage facility control method for other time zones other than the midnight power time zone, as described in Japanese Patent Application Laid-Open No. 4-15420, the heat storage amount is supplemented by the current heat storage amount or temperature. Although it is possible, it does not describe a control method for supplementing the heat storage amount by predicting the heat storage amount.

[0004]

In the conventional heat storage equipment control method, the operation of the heat storage equipment inside and outside the midnight power time zone is controlled according to each time zone. Due to wasteful heat storage in the belt and shortage of heat storage during the daytime, the heat storage equipment was not always used effectively. Since the power consumption of the heat storage equipment is large relative to the power consumption of the entire equipment such as in a building, the heat storage equipment should be operated at full power during the midnight power hours and not operated as much as possible during the day. A method is desired.

An object of the present invention is to provide a heat storage facility control method which can efficiently operate the heat storage facility.

[0006]

In order to achieve the above object, a heat storage facility control method according to the present invention is a heat storage facility control method for operating a heat storage facility at least in the midnight power time zone to store a heat storage amount. The difference between the residual heat storage amount and the maximum heat storage amount is calculated at the start of the time zone, at least one heat storage facility is operated according to the difference, and the maximum heat storage amount is stored at the end of the midnight power time zone.

Then, in the heat storage equipment control method for operating the heat storage equipment at least in the midnight power time zone to store the heat storage amount,
Predict the supplementary heat storage amount to be supplemented at other times of the midnight power time zone, operate at least one heat storage facility according to the supplementary heat storage amount at other time zones, and set the minimum heat storage amount at the start of the midnight power time zone. It may be configured to store.

Further, in the heat storage equipment control method of operating the heat storage equipment at least in the midnight power time zone to store the heat storage amount, at least one operable time zone is provided in another time zone of the midnight power time zone, and each operation is possible. Predict the replenishment heat storage amount to be replenished in the time zone, set at least one heat amount setting value that infers at least one operation pattern, and calculate the difference between each heat amount setting value and the supplement heat storage amount A configuration may be adopted in which the operation pattern is selected, the operation pattern is selected, and the minimum heat storage amount is stored at the start of the midnight power time period.

Further, the operation pattern may be configured such that any one of them is selected including the input operation plan.

The driving pattern may be voice-guided.

Further, the selected operation pattern may be configured to operate with the minimum power consumption.

[0012]

According to the present invention, the difference between the residual heat storage amount and the maximum heat storage amount is calculated at the start of the midnight power time period, and one or more heat storage facilities are fully operated in the midnight power time period to maximize the heat storage amount. It is stored in the limit. And other hours of midnight power hours,
For example, the amount of heat storage required to be replenished in the daytime is predicted, and since one or more drivable time zones and a calorie set value for inferring an operation pattern are provided, the remaining heat storage amount calculated in this drivable time zone and The operation pattern is selected according to the difference from the heat quantity setting value, and the heat storage equipment is operated efficiently with the minimum amount of power used.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIG. As shown in FIG. 1, there is provided a heat storage facility control method for operating a heat storage facility at least in the midnight power time period T ₁ to store the heat storage amount, which is a heat storage amount (remaining heat storage amount) Qm at the start of the midnight power time period T _1. According to the above, at least one heat storage facility is operated to store the maximum heat storage amount at the end of the midnight power time period T ₁ . FIG. 2 is a block diagram showing a building management system as an example. The building management system is a central CPU.
1, a function distribution terminal 2, a CRT 3, and a kanji printer 4
And a communication interface unit 5, and a central CPU
1 and the function distribution terminal 2 are provided with an inference device which is a feature of this embodiment. The central CPU 1 and the function distribution terminal 2 constantly send and receive signals to and from the heat storage equipment including the heat source device 6 and the heat storage tank 7 through the communication interface unit 5.

FIG. 1 shows an example of an operation plan of the heat storage equipment and an example of the amount of heat stored in the heat storage tank by performing the operation. As shown in (a), 22:00 to 8:
The midnight power time period T ₁ is set to 00:00, and the shaded portion is set to the time period in which the heat storage facility can be operated. In addition, 11:00 to 13: in the daytime in other time zones of the midnight power time zone T _1.
The operation time zone T _{2 of the} heat storage equipment is also set for 00:00 and 14:00 to 16:00. (B) shows a heat storage amount accumulated in the heat storage tank in the case of operating the heat storage equipment, midnight stored in maximum 8:00 o'clock heat storage amount at the end of the power consumption period T _1, the midnight power time zone T ₁ Immediately before entering, the heat storage amount is controlled to minimize the heat storage amount Qm.

Next, a method of controlling the midnight power time zone will be described. At 22:00 at the time of entering the midnight power time zone T ₁ , the difference between the residual heat storage amount Qm stored in each heat storage tank at present and the maximum heat storage amount that can be stored is obtained, and the heat storage amount corresponding to the required heat storage amount is obtained. The number of facilities is constantly monitored and determined before each heat storage facility is turned on and off.

Next, for the daytime control other than the midnight power time period T ₁ , the heat storage facility operation time period T ₂ (11:
00 ~ 13:00, 14:00 ~ 16:00) and the times when the heat storage facility is not operated (8:00 ~ 11:00, 13:00 ~ 14:00, 16:00 ~ 22:00) The driving method is decided. First, the amount of heat required by the system for one day is predicted to determine the supplementary heat storage amount Q in the operable time zone T ₂ . This supplementary heat storage amount Q is the shortage supplementary heat storage amount Q required to secure the minimum heat storage amount Qm at 22:00. Next, a plurality of heat quantity setting values Qa to Qd are set in consideration of the supplementary heat storage quantity Q and the heat source equipment capacity of each heat storage facility, and the heat quantity setting values Qa to Qd are input to the inference device.
Each operation pattern A corresponding to the difference with each of a to Qd
~ Decide and enter D. Replenishment heat storage amount Q together with the remaining heat storage amount stored in each current heat storage tank at 11:00
Is calculated, and the difference between the supplementary heat storage amount Q and the heat amount set values Qa to Qd is calculated, and one operating pattern is selected from the operating patterns A to D shown in FIG. Additional operation of equipment is from 11:00 to 13:00 and 14:
It is divided into two times from 0:00 to 16:00. So 11:
At the time of 00:00, the present remaining heat storage amount and the supplementary heat storage amount Q are calculated, and the supplementary heat storage amount Q is compared with each heat amount set value Qa to Qd to infer which operation pattern to make. Determined by A plurality of heat quantity set values may be stored in advance, and the heat quantity set values may be automatically set according to the remaining heat storage quantity or the supplementary heat storage quantity.

This process is carried out during the daytime operating time period T ₂
(11:00 to 13:00, 14:00 to 16:00) so that the minimum heat storage amount Qm is controlled at 22:00. Here, 13:00 to 14:00
The reason for not operating during the time is that the electricity tariff can be reduced by not operating for 1 hour under the regulated power contract.

Next, another embodiment of the present invention will be described with reference to FIGS. The embodiment shown in FIGS. 1 to 3 is a method of automatically controlling the heat storage amount at all times, but is an embodiment of performing control different from the normal operation method at the time of maintenance of the equipment. As shown in FIG. 4, either inference operation control or forced operation control (operation plan) inferred from the CRT 3 shown in FIG. 2 is input. This input NO. No. 1 “Inference operation control” is the control method described above. 2 "Forced operation control" is to specify an operation method that does not depend on inference for each refrigerator, as shown in FIG. Here, FIG.
(A) indicates whether or not each refrigerator is a target device to be controlled in the operating time shown in (B). The refrigerator designated as “target” is automatically turned on / off at the operating time shown in (B). The refrigerator designated as "non-target" is not controlled. Therefore, the operation of the refrigerator is only manually turned on / off by the operator. Further, both (A) and (B) can be set and changed by the operator. For example, the operation of the refrigerator A is from 8:00 to 12:00.
The operation is automatically turned on / off between the hour and 13:00 to 18:00. In addition, the refrigerator B is from 9:00 to 11:
The time is set to 00, but since it is "non-target", it cannot be turned on / off automatically. As shown in FIG.
By selecting the operation method shown in (1), the operation method intended by the operator can be realized at all times instead of the fully automatic operation.

As a further embodiment, the center C shown in FIG.
The role of the voice synthesizer 8 attached to the PU 1 will be described.
After determining the above-mentioned inference operation control, the voice synthesis device 8 provides the following voice guidance. (1) 1-3 minutes before control (actually turning on / off)
Turn on (or turn off) the refrigerator after 3 minutes. (2) As of 8:00, "The amount of heat stored at night today is **
**was. The predicted value for daytime is ****. (3) Based on the settings shown in Fig. 4, "Currently, the operation is performed by inference operation control (or forced operation control). The operation time is ****: ** to **: ** (forced operation control Only when.) "By providing such voice guidance, the operator can clearly understand the control contents and help select the correct control method.

By running the heat storage equipment systematically as described above, the running cost of the heat storage equipment can be minimized. The heat storage facilities include heat source facilities in buildings and district heating and cooling facilities.

[0021]

According to the present invention, since the inference device for selecting the operation pattern of the heat storage equipment inside and outside the midnight power time zone is provided, the heat storage equipment can be operated efficiently according to the heat storage amount, and the power consumption can be reduced. Will be reduced.

[Brief description of drawings]

FIG. 1 is a diagram showing a heat storage amount plan according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a building management system including heat storage equipment controlled by an inference device.

3 is a diagram showing a control plan of heat storage equipment controlled by the inference device of FIG.

FIG. 4 is a diagram illustrating heat storage control input.

FIG. 5 is a diagram illustrating forced operation control.

[Explanation of symbols]

 1 central CPU 2 function distribution terminal 3 CRT 4 printer 5 communication interface section 8 voice synthesizer

Claims (6)

[Claims] 1. A heat storage facility control method for operating a heat storage facility at least in the midnight power time zone to store a heat storage amount, wherein a difference between a residual heat storage amount and a maximum heat storage amount is calculated at the start of the midnight power time zone, and the difference is calculated. According to the above, at least one heat storage facility is operated to store the maximum heat storage amount at the end of the midnight power time period. 2. A heat storage facility control method for operating a heat storage facility at least in the midnight power time zone to store a heat storage amount, predicting a supplementary heat storage amount to be supplemented in another time zone of the midnight power time zone, and performing the other time. A method for controlling heat storage equipment, comprising: operating at least one heat storage equipment according to the supplementary heat storage quantity in the band, and storing the minimum heat storage quantity at the start of the midnight power time zone. 3. A heat storage facility control method for operating a heat storage facility at least in the midnight power time zone to store a heat storage amount, wherein at least one operable time zone is provided in another time zone of the midnight power time zone, and Predict the supplementary heat storage amount to be replenished in the operable time zone, set at least one heat amount set value that infers at least one operation pattern, and calculate the difference between each heat amount set value and the supplementary heat storage amount. A heat storage facility control method, characterized in that one of the operation patterns is selected, the operation is performed according to the operation pattern, and the minimum heat storage amount is stored at the start of the midnight power time period. 4. The heat storage facility control method according to claim 3, wherein one of the operation patterns includes an operation plan to be input and one of the operation patterns is selected. 5. The heat storage equipment control method according to claim 3, wherein the operation pattern is guided by voice. 6. The operation pattern selected according to claim 3, wherein the selected operation pattern is operated with minimum power consumption.
5. The heat storage equipment control method according to any one of 5 above.