JP2016223703A - Operation time setting method for heat pump type hot water storage device and operation schedule system therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an operation time setting method for a heat pump type hot water storage device capable of restricting a peak value of a consumption power in a late-night time zone or a night time zone and reducing a power incoming contract capacity and subsequently decreasing electricity charge of a consumer.SOLUTION: An operation time setting method for a heat pump type hot water storage device comprises the steps of: acquiring past operation history data on a plurality of heat pump type hot water storage devices, past power consumption history data on a building, and weather information data on past days and next day; determining a peak time zone of consumption power on the next day in view of these data; determining a heat pump type hot water storage device planned to operate in the peak time zone; determining a heat pump type hot water storage device capable of changing the operation time zone of the planned heat pump type hot water storage device operated in the peak time zone; and transmitting a set time in which the operation time zone is changed to the heat pump type hot water storage device capable of changing the operation time zone.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an operation time setting method for a plurality of heat pump hot water storage devices installed in a building that receives power collectively, and an operation planning system for such heat pump hot water storage devices.

  There is a heat pump hot water storage device as one of heat sources in a house or the like. In the heat pump hot water storage device, hot water is generated using electric power in the midnight time zone (for example, from 23:00 to 7:00), and the generated hot water is stored in a hot water storage tank (hot water storage tank). Then, the stored hot water is supplied from a hot water storage tank to a hot water supply facility or the like as needed during the day.

  In recent years, the collective power reception system has been increasingly adopted in apartment houses such as apartments. In the collective power receiving method, a developer or a management company makes a high-voltage power contract with an electric power company for the entire apartment house, and a resident of each house makes a low-voltage power contract with the developer or the management company. Adopting such a collective power reception system has the advantage of reducing the electricity bill.

  In the collective power receiving method, the electricity rate varies depending on the power receiving contract capacity (with high voltage power contract) with the power company. For this reason, suppressing the peak of power consumption, in other words, smoothing power consumption, is an important issue for further reduction of the electricity bill. As means for suppressing the peak of power consumption, for example, there is a hot water storage type hot water supply apparatus disclosed in Patent Document 1.

  In the hot water storage type hot water supply apparatus of Patent Document 1, a first operation mode and a second operation mode in which the start time and stop time of the boiling operation in the midnight time zone are set are set. Then, the determination unit determines whether the boiling operation is performed in the first operation mode or the second operation mode.

JP, 2014-137200, A

  According to the configuration of Patent Document 1, it is considered that the peak of power consumption in the midnight time zone is alleviated by dividing the operation time of the hot water storage type hot water supply device into two patterns. However, with the configuration of Patent Document 1, the power consumption in the midnight time zone is still greater than in other time zones. In apartments such as condominiums, hot water heated during midnight hours is consumed during the day, so if there is a shortage of hot water, additional hot water may be heated at night. For this reason, the peak of power consumption occurs in the night time zone in addition to the midnight time zone. Therefore, there has been a demand for the development of a means for suppressing the peak of power consumption more effectively.

  In view of such a problem, the present invention, in a plurality of heat pump hot water storage devices installed in a building that performs collective power reception, in the midnight time zone (for example, 23:00 to 7:00) or the night time zone (for example, 17:00 to Of the heat pump type hot water storage device and the heat pump type hot water storage device capable of suppressing the peak of power consumption at 23:00) and reducing the power receiving contract capacity and thus reducing the electricity bill of the consumer. The purpose is to provide an operation planning system.

  In order to solve the above-described problems, a typical configuration of the operation time setting method of the heat pump hot water storage device according to the present invention is an operation time setting method of a plurality of heat pump hot water storage devices installed in a building that is receiving power collectively. And acquiring past operation history data of a plurality of heat pump hot water storage devices, acquiring past power consumption history data in a building, acquiring past and next day weather information data, operating history data, and past From the power consumption history data and past and next-day weather information, determine the peak hours of power consumption for the next day, determine the heat pump hot water storage device that is scheduled to operate during the peak hours, and operate during the peak hours Among heat pump type hot water storage devices, heat pump type hot water storage devices that can change the operation time zone by judging the heat pump type hot water storage device that can change the operation time zone A, and transmits the set time changing the operation time zone.

  According to the said structure, the heat pump type hot water storage apparatus which can change operation time among the heat pump type hot water storage apparatuses scheduled to operate | move in a peak time slot | zone can be determined. Then, by changing the operation time of the heat pump hot water storage device to a time zone other than the midnight time zone or the night time zone, the peak of power consumption in the midnight time zone or the night time zone can be suppressed. Therefore, it is possible to reduce the power receiving contract capacity of the collective power receiving method and reduce the electricity charge of the consumer.

  Among the heat pump hot water storage devices that are scheduled to operate during peak hours, obtain the heat pump hot water storage devices that are scheduled to operate in the peak hours during the morning and noon hours. It is good to judge that it is a heat pump type hot water storage device that can change the nighttime operating time zone early. According to such a configuration, it is possible to particularly suitably suppress the peak in the night time zone. In addition, as a morning and noon time slot | zone, 7: 00-17: 00 can be illustrated, for example.

  Of the heat pump hot water storage devices scheduled to operate during peak hours, the heat pump hot water storage devices for which the amount of hot water used in the morning and noon is scheduled to be less than a predetermined amount are obtained. It may be determined that the heat pump type hot water storage device can shorten the operation time zone at midnight. According to such a configuration, it is particularly possible to suitably suppress the peak in the midnight time zone.

  In order to solve the above-described problems, a typical configuration of an operation planning system for a heat pump hot water storage apparatus according to the present invention is an operation planning system for a plurality of heat pump hot water storage apparatuses installed in a building that receives power collectively. Past operation history data of a plurality of heat pump hot water storage devices, power consumption history data in a building, data storage means for storing past weather information data, weather information acquisition means for acquiring weather information for the next day, An operation plan creation means for creating an operation plan of the heat pump hot water storage device, and the operation plan creation means comprises the consumption of the next day from the operation history data, past power consumption history data, and past and next day weather information. Determine the peak hours of electricity, determine the heat pump type hot water storage device that is scheduled to operate during peak hours, and the Of Toponpu type hot water storage device, to determine the heat pump type hot water storage device capable of changing the operation time period, the heat pump type hot water storage device capable of changing the operation time period, and transmits the set time changing the operation time zone.

  The component corresponding to the technical idea in the operation time setting method of the heat pump hot water storage apparatus described above and the description thereof can also be applied to the operation planning system of the heat pump hot water storage apparatus.

  According to the present invention, in a plurality of heat pump hot water storage devices installed in a building that is performing collective power reception, it is possible to suppress the peak of power consumption in the midnight hours and night hours, and to reduce the power receiving contract capacity, As a result, it is possible to provide an operation time setting method for a heat pump type hot water storage device and an operation planning system for the heat pump type hot water storage device that can reduce the electricity bill of a consumer.

It is a figure explaining the structure of the driving | operation plan system of the heat pump type hot water storage apparatus concerning this embodiment. It is a flowchart explaining the operation time setting method of the heat pump type hot water storage apparatus concerning this embodiment. It is the figure which illustrated the simulation result of the power consumption in a building. It is a flowchart which illustrates the detail of determination of the hot water storage apparatus in step S210.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in the embodiments are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are denoted by the same reference numerals, and redundant description is omitted, and elements not directly related to the present invention are not illustrated. To do.

  Drawing 1 is a figure explaining the composition of the operation planning system of the heat pump type hot water storage device concerning this embodiment. Hereinafter, the operation time setting method of the heat pump hot water storage device according to the present embodiment will be described together with the operation planning system of the heat pump hot water storage device shown in FIG. 1 in detail. In the following description, the heat pump hot water storage device is referred to as the hot water storage device 120, the operation planning system is referred to as the operation planning system 100, and the operation time setting method is simply referred to as the operation time setting method.

  FIG. 1A is a diagram showing the overall configuration of the operation planning system 100, and FIG. 1B is a block diagram showing the configuration of the operation control device 130. In the apartment house shown in FIG. 1A (hereinafter referred to as the building 102), power is collectively received from an electric power company (high-voltage power contract). The building 102 includes nine houses 102a, and each house 102a has a low-voltage power contract with the developer and management company of the building 102.

  As shown in FIG. 1A, the operation planning system 100 according to the present embodiment is a HEMS (Home Energy Management System) including an operation control device 130 installed in each house 102a, and collects power. An operation plan is created for a plurality of hot water storage devices 120 installed in the building 102 performing the operation. The operation control device 130 and the server 106 are connected by the Internet 104 (WAN: Wide Area Network).

  Each house 102a is provided with a load 110 and a hot water storage device 120 (heat pump (HP) hot water storage device). Examples of the load 110 include electric devices such as an air conditioner, a television set, and a refrigerator arranged in the room of the house 102a. The hot water storage device 120 stores hot water generated by a heat pump in a hot water storage tank, and supplies the hot water to a hot water supply facility (not shown). The load 110 and the hot water storage device 120 are connected to the operation control device 130 via a LAN (Local Area Network).

  The operation control device 130 shown in FIG. 1B mainly controls the operation (operation) of the hot water storage device 120 in this embodiment. The operation control device 130 includes an operation control unit 140 that controls the operation of the hot water storage device 120 and a data storage unit 150 that stores various data. In the present embodiment, the operation control unit 140 and the data storage unit 150 are exemplified by the configuration included in the operation control device 130, but the present invention is not limited to this, and the operation control unit 140 and the data storage unit 150 are separately provided. It is good also as an apparatus.

  The operation control unit 140 also functions as an operation plan creation unit 142, a weather information acquisition unit 144, an operation state acquisition unit 146, and a power consumption estimation unit 148. The operation plan creation unit 142 creates an operation plan for the hot water storage device 120 as described in detail later. The weather information acquisition unit 144 acquires the next day's weather information from the server 106 via the Internet 104. The operation state acquisition unit 146 acquires the operation state (operation state history data) of the hot water storage device 120. The power consumption estimation means 148 estimates the power consumption of the next day. In particular, in the present embodiment, as will be described later, when the operation time of the hot water storage device 120 is changed, the power consumption estimation unit 148 estimates (estimates) the power consumption of the next day based on the changed operation time. . Each of these means is specifically a program executed by the operation control device 130.

  The data storage unit 150 stores driving history data 152, power consumption history data 154, and weather information data 156. The operation history data 152 is data of past operation history of the hot water storage devices 120 in each house 102a, that is, a plurality of the hot water storage devices 120 installed in the building 102 receiving collective power, and acquired by the operation state acquisition unit 146. The history data of the operation state of the plurality of hot water storage devices 120 are accumulated. The power consumption history data 154 is history data of past power consumption of the load 110 in each house 102a of the building 102. The weather information data 156 is data of past weather information in which the weather information acquired by the weather information acquisition unit 144 is accumulated.

  FIG. 2 is a flowchart for explaining an operation time setting method of the heat pump hot water storage apparatus according to the present embodiment. Hereinafter, the operation time setting method according to the present embodiment will be described together with the operation of the operation control unit 140 in the operation planning system 100 in detail.

  In the operation time setting method of this embodiment, the operation control means 140 functions as the operation plan creation means 142, and sets the operation time of the plurality of hot water storage devices 120 installed in the building 102 that is receiving power collectively. As illustrated in FIG. 2, the operation plan creation unit 142 first refers to the data storage unit 150 and acquires past operation history data 152 of the plurality of hot water storage devices 120 installed in each house 102a (step S202).

  Next, the operation plan creation unit 142 refers to the data storage unit 150, and stores the past power consumption history data 154 in the building 102, that is, the past power consumption history data of the load 110 installed in each house 102 a of the building 102. Obtain (step S204). Subsequently, the operation control unit 140 functions as the operation plan creation unit 142, acquires the past weather information data 156 stored in the data storage unit 150, functions as the weather information acquisition unit 144, and operates on the next day's weather information ( Weather information data) is acquired (step S206).

  FIG. 3 is a diagram illustrating a simulation result of power consumption in the building 102. When the operation history data 152, the past power consumption history data 154, and the weather information data 156 of the past and the next day are acquired, the operation plan creation unit 142 refers to these data and determines the peak time zone of the power consumption of the next day. (Step S208).

  In the example shown in FIG. 3A, the power consumption peak time zone is a time zone from 4:00 to 6:00 in the early morning and a time zone from 21:00 to 22:00 at night. The time zone from 12:00 to 17:00 is the bottom time zone of power consumption. In the following, the peak hours from 4:00 to 6:00 in the early morning are the peak hours at midnight, the peak hours from 21:00 to 22:00 at night are the peak hours during the night, and the hours from 11:00 to 17:00 in the daytime. This is called the bottom time zone.

  As a factor that causes the midnight peak hours, it is assumed that the hot water storage device 120 installed in each house 102a performs a boiling operation to store hot water used by the resident during the day. ing. In addition, it is assumed that the night peak time zone is generated because the residents use the hot water boiled in the middle of the night and the hot water is insufficient because the residents use it during the day.

  When the peak time zone of the power consumption of the next day is determined, the operation plan creation means 142 refers to the past operation history data of the hot water storage device 120 stored in the data storage means 150, and the hot water storage scheduled to operate in the peak time zone. The device 120 is determined (step S210). And the operation plan preparation means 142 judges the hot water storage apparatus 120 which can change an operation time slot | zone among the hot water storage apparatuses 120 which are scheduled to operate | move in the peak time slot | zone judged in step S210 (step S212).

  FIG. 4 is a flowchart illustrating details of the determination of hot water storage device 120 in step S210. In this embodiment, when determining the hot water storage device 120 whose operation time can be changed, the past hot water usage of the hot water storage device 120 is used.

  As shown in FIG. 4, when determining the hot water storage device 120 whose operation time can be changed, first, the operation plan creation unit 142 first stores past operation history data of the plurality of hot water storage devices 120 stored in the data storage unit 150. Referring to 152, the past hot water usage of the plurality of hot water storage devices 120 is acquired (step S222). Then, the operation plan creation unit 142 determines whether the amount of hot water used in the morning and noon of the hot water storage device 120 scheduled to operate during the peak time period is equal to or greater than a predetermined amount (step S224). As described above, for example, the morning / noon time zone (indicated as “morning / daytime zone” in FIG. 3) is, for example, 7:00 to 17:00.

  If the amount of hot water used in the morning and noon of the hot water storage device 120 that is scheduled to operate during the peak time zone is greater than or equal to a predetermined amount (YES in step S224), the operation plan creation means 142 Is determined to be a hot water storage device 120 that can be changed early (step S226). The fact that the amount of hot water used in the morning and noon is equal to or greater than a predetermined amount means that hot water boiled in the midnight time zone is used in a relatively early time zone. Therefore, since the used amount can be additionally boiled during the daytime, it is possible to reduce the additional boiling during the nighttime.

  Specifically, as shown in FIG. 3 (b), the operation time of the hot water storage device 120 (the hot water storage device 120 in which the amount of hot water used in the morning and noon is equal to or greater than a predetermined amount) that can change the operating time zone at night is set at night. Change early from peak hours. That is, the nighttime operating time of the hot water storage device 120 is moved to the bottom time zone. Thereby, it becomes possible to suppress especially the power consumption especially in a nighttime peak time zone.

  On the other hand, if the amount of hot water used in the morning / daytime of the hot water storage device 120 scheduled to operate during peak hours is less than the predetermined amount (NO in step S224), the operation plan creation means 142 causes the hot water storage device 120 to operate at midnight. It is determined that the hot water storage device 120 can shorten the time zone (step S228). The fact that the amount of hot water used in the morning and noon is less than the predetermined amount means that hot water boiled in the late night hours is not used much in the early hours. Therefore, since the amount of boiling up in the midnight time zone is small, the amount of boiling up in the midnight time zone, and hence the operating time zone in the midnight time can be shortened.

  Specifically, as shown in FIG. 3 (c), the operation time of the hot water storage device 120 (the hot water storage device 120 in which the amount of hot water used in the morning and noon is less than a predetermined amount) can be reduced from the midnight time zone. Change to the bottom time zone. Thereby, the operation time zone of the hot water storage device 120 at midnight is shortened, and the power consumption in the midnight peak time zone can be suitably suppressed.

  Returning to FIG. 2, as described above, when the operation plan creation unit 142 determines the hot water storage device 120 that can change the operation time (step S212), the operation control unit 140 functions as the power consumption estimation unit 148. The power consumption of the next day when the operating time is changed (after the change) is estimated (step S214). Then, the operation plan creation unit 142 refers to the estimated value of power consumption and determines whether or not a new peak power is generated (step S216).

  When a new peak power is generated (YES in step S216), the operation plan creation unit 142 reduces the number of hot water storage devices (the number of changed hot water storage devices 120) whose operation time is changed (step S218). And the operation plan preparation means 142 repeats step S210-step S216 until new peak electric power does not generate | occur | produce in a bottom time slot | zone. Thus, it is possible to change the operating time of the hot water storage device 120 within the range while preventing the occurrence of a new peak of power consumption in the bottom time zone when the operating time of the hot water storage device 120 is changed to the bottom time zone. it can.

  On the other hand, when no new peak power is generated (NO in step S216), the operation plan creation unit 142 determines the hot water storage device 120 determined to be able to change the operation time in step S212 as the hot water storage device 120 to change the operation time. To do. And the operation plan preparation means 142 makes the set time which changed operation time the operation plan of the hot water storage device 120 (creates an operation plan), and sets the operation time zone to each hot water storage device 120 (operation plan). Is transmitted (step S220). Thereby, for example, the power consumption of the hot water storage device 120 in the midnight peak time zone and the nighttime peak time zone in FIG. 3A is allocated during the day as shown in FIG. 3B and FIG. 3C. Power peaks are eased.

  As described above, in the operation time setting method of the heat pump hot water storage device and the operation planning system of the heat pump hot water storage device of the present embodiment, the operation time is changed among the hot water storage devices 120 scheduled to operate during peak hours. Is determined. Then, by changing the operation time of the hot water storage device 120 to a time zone other than the midnight time zone or the night time zone, the peak of power consumption in the midnight time zone or the night time zone can be suppressed. As a result, the peak of power consumption in the midnight time zone and night time zone in FIG. 3A is suppressed as shown in FIG. 3B, so that the power receiving contract capacity of the collective power receiving method can be reduced. Therefore, it becomes possible to reduce the electricity bill of the consumer.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the example which concerns. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

  INDUSTRIAL APPLICABILITY The present invention can be used for an operation time setting method for a plurality of heat pump hot water storage devices installed in a building that receives power collectively and an operation planning system for such heat pump hot water storage devices.

DESCRIPTION OF SYMBOLS 100 ... Operation plan system, 102 ... Building, 102a ... Housing, 104 ... Internet, 106 ... Server, 110 ... Load, 120 ... Hot water storage device, 130 ... Operation control device, 140 ... Operation control means, 142 ... Operation plan creation means, 144 ... Weather information acquisition means, 146 ... Operating state acquisition means, 148 ... Power consumption estimation means, 150 ... Data storage means, 152 ... Operation history data, 154 ... Power consumption history data, 156 ... Weather information data

Claims (4)

An operation time setting method for a plurality of heat pump hot water storage devices installed in a building that receives power collectively,
Obtaining past operation history data of the plurality of heat pump hot water storage devices;
Obtain past power consumption history data in the building,
Get past and next day weather information data,
From the driving history data, the past power consumption history data, and the weather information of the past and the next day, a peak time zone of power consumption for the next day is determined,
Determine the heat pump hot water storage device scheduled to operate during the peak hours,
Among the heat pump hot water storage devices scheduled to operate during the peak time zone, determine a heat pump hot water storage device that can change the operation time zone,
An operation time setting method for a heat pump type hot water storage device, wherein the set time when the operation time zone is changed is transmitted to the heat pump type hot water storage device capable of changing the operation time zone. Obtaining the amount of hot water used in the past by the plurality of heat pump hot water storage devices,
Among the heat pump type hot water storage devices scheduled to operate during the peak hours, heat pump type hot water storage devices in which the amount of hot water used in the morning and noon is scheduled to be more than a predetermined amount are heat pump type hot water storage devices that can change the operating time zone at night early. The operation time setting method of the heat pump type hot water storage device according to claim 1, wherein the operation time is determined to be present. Obtaining the amount of hot water used in the past by the plurality of heat pump hot water storage devices,
Among the heat pump hot water storage devices scheduled to operate during the peak hours, the heat pump hot water storage devices in which the amount of hot water used in the morning and noon is less than a predetermined amount is a heat pump hot water storage device that can shorten the operation time zone at midnight. The operation time setting method of the heat pump hot water storage device according to claim 1, wherein the determination is made. It is an operation planning system for a plurality of heat pump hot water storage devices installed in a building that receives power collectively,
Past operation history data of the plurality of heat pump hot water storage devices, power consumption history data in the building, data storage means for storing past weather information data,
Weather information acquisition means for acquiring weather information for the next day;
An operation plan creating means for creating an operation plan of the heat pump hot water storage device;
Including
The operation plan creation means includes:
From the driving history data, the past power consumption history data, and the weather information of the past and the next day, a peak time zone of power consumption for the next day is determined,
Determine the heat pump hot water storage device scheduled to operate during the peak hours,
Among the heat pump hot water storage devices scheduled to operate during the peak time zone, determine a heat pump hot water storage device that can change the operation time zone,
An operation planning system for a heat pump hot water storage device, wherein a set time in which the operation time zone is changed is transmitted to the heat pump hot water storage device capable of changing the operation time zone.

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