JP2017112771A - Power estimation device, power estimation method and power estimation program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power estimation device capable of discriminating between power consumption capable of being reduced after updating being derived from improvement of power characteristics of equipment after the updating in comparison with that before the updating and power consumption capable of being reduced after the updating being derived from improvement of an operation method of the equipment after the updating in comparison with that before the updating, and a power estimation method and a power estimation program.SOLUTION: A power estimation device includes a before updating determination section, an after updating determination section, an equipment derivation determination section, and an operation derivation determination section. The before updating determination section determines an estimated value of power consumption of equipment before updating. The after updating determination section determines an estimated value of power consumption of the equipment after the updating. The equipment derivation determination section determines a difference between the estimated value of the power consumption of the equipment before the updating and the estimated value of the power consumption of the equipment after the updating to be an equipment derivation consumption power reduction amount. The operation derivation determination section determines a difference between the equipment derivation consumption power reduction amount and an actually measured value of a consumption power reduction amount of the equipment after the updating to be an operation derivation consumption power reduction amount.SELECTED DRAWING: Figure 1

Description

  Embodiments described herein relate generally to a power estimation apparatus, a power estimation method, and a power estimation program.

  Devices such as air conditioners and lighting devices may be updated (changed) to models with improved power characteristics for the purpose of reducing power consumption. However, in the conventional power estimation apparatus, the power consumption reduction amount resulting from the improvement of the power characteristics of the device after the update compared to before the update, and the operation method of the device after the update are improved compared to before the update. In some cases, it is impossible to distinguish the amount of power consumption reduction resulting from the above.

JP 2004-272340 A

  The problem to be solved by the present invention is that the power consumption reduction amount derived from the improvement of the power characteristics of the device after the update compared to before the update, and the operation method of the device after the update is improved compared to before the update. It is to provide a power estimation device, a power estimation method, and a power estimation program that can be distinguished from the power consumption reduction amount derived from the above.

  The power estimation apparatus of the embodiment includes a pre-update determination unit, a post-update determination unit, a device-derived determination unit, and an operation-derived determination unit. The pre-update determination unit determines an estimated value of the power consumption of the device before update based on the data related to the operation of the device after update. The post-update determination unit determines an estimated value of the power consumption of the updated device based on data related to the operation of the updated device. The device-derived determination unit determines the difference between the estimated value of the power consumption of the device before the update and the estimated value of the power consumption of the device after the update as the power consumption reduction amount derived from the power characteristics of the device after the update. To do. The operation-derived determining unit obtains the actual measurement value of the power consumption reduction amount of the updated device, and the power consumption reduction amount derived from the power characteristic of the updated device and the actual measurement value of the power consumption reduction amount of the updated device. Is determined as the power consumption reduction amount derived from the operation of the device after the update.

The figure which shows the 1st example of a structure of the electric power estimation system in embodiment. The figure which shows the example of the specification of the electric power characteristic of the air-conditioning equipment before update in embodiment. The figure which shows the example of the specification of the electric power characteristic of the illuminating device before update in embodiment. The figure which shows the example of the specification of the electric power characteristic of the cooler before an update in embodiment. The figure which shows the example of the specification of the electric power characteristic of the air-conditioning apparatus after update in embodiment. The figure which shows the example of the specification of the electric power characteristic of the illuminating device after update in embodiment. The figure which shows the example of the specification of the electric power characteristic of the cooler after an update in embodiment. The figure which shows the example of the actual operation data of the target apparatus group after the update in embodiment. The figure which shows the example of the estimated value of the power consumption of the air-conditioning equipment before update in embodiment. The figure which shows the example of the estimated value of the power consumption of the air conditioner after an update in embodiment. The figure which shows the 1st example of the display of the amount of power consumption reduction in embodiment. The figure which shows the 2nd example of a structure of the electric power estimation system in embodiment. The figure which shows the 2nd example of a display of the power consumption amount reduction in embodiment.

Hereinafter, a power estimation device, a power estimation method, and a power estimation program according to embodiments will be described with reference to the drawings.
(First embodiment)
FIG. 1 is a diagram illustrating a first example of the configuration of the power estimation system 1a. The power estimation system 1a (power visualization system) is a system that estimates the power consumption of a device. Devices such as air conditioners and lighting devices may be updated (changed) to models with improved power characteristics for the purpose of reducing power consumption.

  The power estimation system 1a estimates the power consumption of the device before the update and the power consumption of the device after the update by a simulation in which the operation data of the device is shared before and after the update. That is, the power estimation system 1a estimates the power consumption of the device before the update when the device before the update is operated under the same condition as the power load condition for the target device group 20 after the update. The power estimation system 1a estimates the power consumption of the updated device when the updated device is operated under the power load condition for the updated target device group 20.

  In the power estimation system 1a, the power characteristic (power efficiency) of the updated device is based on the difference between the estimated value of the power consumption of the device before the update and the estimated value of the power consumption of the device after the update. The power consumption reduction amount derived from the improvement compared to (hereinafter referred to as “device-derived power consumption reduction amount”) is estimated. That is, the device-derived power consumption reduction amount is a power consumption reduction amount caused by an improvement in the power characteristics of the device after the update compared to before the update.

  The power estimation system 1a is derived from the fact that the operation method of the device after the update is improved as compared with that before the update based on the actual measurement value of the power consumption of the device after the update and the amount of power consumption reduction derived from the device. Estimate the power consumption reduction amount (hereinafter referred to as “operation-derived power consumption reduction amount”). In other words, the operation-derived power consumption reduction amount is a power consumption reduction amount caused by an improvement in the device operation method after the update compared to before the update. Thereby, the power estimation system 1a can distinguish between the device-derived power consumption reduction amount and the operation-derived power consumption reduction amount.

  The operation method of the equipment is, for example, an operation method in which the user frequently turns off the lighting of the lighting equipment, an operation method in which the air conditioning load in the room is reduced by the user lowering the blind on the window side where the outside air temperature is high, The operation method of turning off the light emitting part of the lighting device after reducing the indoor lighting load by the user raising the blind, and increasing the indoor lighting load by lowering the bright window side blind by the user. An operation method in which the light emitting unit is turned on and an operation method in which the user frequently stops the operation of the air conditioner.

  The power estimation system 1 a includes a power meter 10, a target device group 20, and a power estimation device 30. The wattmeter 10 measures the amount of power supplied to the target device group 20 from a commercial power system. That is, the wattmeter 10 measures the power consumption of the target device group 20 after the update. The wattmeter 10 transmits the actual measurement value of the power consumption of the updated target device group 20 to the power estimation device 30.

  The target device group 20 is a device group that is a target whose operation data is actually measured. The operation data is data related to the operation of the devices in the target device group 20. For example, the operation data includes operation day data, operation time zone data, and load factor data for each device. An operation day shows the day when the apparatus was operated. The start time of the operation time zone indicates the time (timing) of the operation start (ON) of the device on the operation day. The end time of the operation time zone indicates the time of operation stop (off) of the device on the operation day. The load factor is a ratio of average power consumption (average demand power) in the operation time period to rated power consumption (maximum demand power). The load factor may be expressed as a percentage. The operation data may further include outside air temperature data and color temperature data for each device. Hereinafter, the actual measurement data regarding the operation of the devices in the target device group 20 after the update is referred to as “actual operation data”.

  The target device group 20 is, for example, an air conditioner 21, a lighting device 22, and a cooler 23. The target device group 20 is provided in, for example, a store, a factory, a house, a school, and a hospital. The target device group 20 transmits the actual operation data of the target device group 20 to the communication unit 31 online.

  The air conditioning device 21 is a device that cools or heats the room. The air conditioner 21 may include a sensor for measuring the outside air temperature and the room temperature. The air conditioner 21 transmits actual operation data of the air conditioner 21 to the communication unit 31 via the communication line. For example, the air conditioner 21 transmits information indicating the time of starting or stopping the operation of the device to the communication unit 31 via the communication line. For example, the air conditioner 21 measures the outside air temperature. The outside air temperature is one of air conditioning loads (heating load, cooling load). The air conditioner 21 transmits the outside air temperature data to the communication unit 31 via the communication line. A plurality of air conditioners 21 may be provided.

  The illumination device 22 is a device such as a fluorescent lamp or LED (Light Emitting Diode) illumination. The lighting device 22 transmits the actual operation data of the lighting device 22 to the communication unit 31 via the communication line. For example, the lighting device 22 transmits information indicating the operation start time or the operation stop time of the device to the communication unit 31 via the communication line. For example, the lighting device 22 transmits the color temperature data of the light emitting unit of the lighting device 22 to the communication unit 31 via the communication line. There may be a plurality of lighting devices 22.

  The cooler 23 is a refrigeration apparatus or a refrigeration apparatus. The cooler 23 may include a heater for defrosting. The cooler 23 transmits the actual operation data of the cooler 23 to the communication unit 31 via the communication line. For example, the cooler 23 transmits information indicating the operation start time or the operation stop time of the device to the communication unit 31 via the communication line. A plurality of the coolers 23 may be provided.

  The power estimation device 30 is an information processing device such as a personal computer device or a server device. The power estimation apparatus 30 includes a communication unit 31, a database 32, a pre-update simulation unit 33, a post-update simulation unit 34, a device-derived determination unit 35, an operation-derived determination unit 36, and an output unit 37.

  Some or all of the communication unit 31, the pre-update simulation unit 33, the post-update simulation unit 34, the device-derived determination unit 35, the operation-derived determination unit 36, and the output unit 37 are, for example, a CPU (Central Processing Unit). A software function unit that functions when a processor such as (Unit) executes a program stored in the storage unit. Some or all of these functional units may be hardware functional units such as LSI (Large Scale Integration) and ASIC (Application Specific Integrated Circuit).

  The communication unit 31 acquires an actual measurement value of the power consumption of the target device group 20 after the update from the wattmeter 10 online. The communication unit 31 stores in the database 32 the actual measurement value of the power consumption of the target device group 20 after the update. The communication unit 31 acquires the updated actual operation data of the target device group 20 from the target device group 20 via the communication line. The communication unit 31 stores the updated actual operation data of the target device group 20 in the database 32.

  The communication unit 31 may acquire an actual measurement value of the power consumption of the target device group 20 before the update from the wattmeter 10 online. The communication unit 31 may acquire the actual operation data of the target device group 20 before update from the target device group 20 via a communication line. The communication unit 31 may store the actual measurement value of the power consumption of the target device group 20 before the update and the actual operation data of the target device group 20 before the update in the database 32.

  The database 32 is configured using a storage device having a nonvolatile storage medium (non-temporary recording medium) such as a magnetic hard disk device or a semiconductor storage device. The database 32 may include, for example, a volatile storage medium such as a RAM (Random Access Memory) or a register. The database 32 may store data by cloud computing technology.

  The database 32 stores the actual measurement value of the power consumption of the target device group 20 before the update. The database 32 stores the actual measurement value of the power consumption of the target device group 20 after the update. The database 32 stores the power characteristic specifications (catalog data) of the target device group 20 in the form of a list for each device.

  For example, the database 32 stores the specification of the power characteristics of the target device group 20 before the update. For example, the database 32 stores the specifications of the power characteristics of the air conditioner 21 before the update. For example, the database 32 stores the specifications of the power characteristics of the lighting device 22 before the update. For example, the database 32 stores the specifications of the power characteristics of the cooler 23 before update.

  For example, the database 32 stores the specifications of the power characteristics of the target device group 20 after the update. For example, the database 32 stores the specifications of the power characteristics of the air conditioner 21 after the update. For example, the database 32 stores the specifications of the power characteristics of the lighting device 22 after the update. For example, the database 32 stores the specifications of the power characteristics of the refrigerating machine 23 after the update. For example, the database 32 may store the electricity rate in association with the power consumption.

  FIG. 2 is a diagram illustrating an example of the power characteristic specification of the air conditioning device 21 before the update. In the specification of the power characteristics of the air conditioner 21 before the update, the rated capacity (kW) of cooling and the rated power consumption (kW) of cooling are supplied to the air conditioner 21 at a predetermined first outdoor temperature. Corresponding to each AC power frequency. The first outside air temperature is, for example, 35 degrees Celsius. In FIG. 2, as an example, the rated capacity “14.0 kW” of cooling and the rated power consumption “4.0 kW” of cooling are associated with the AC frequency “50 Hz” of the power supplied to the air conditioner 21. .

  The rated capacity of the air conditioner 21 is the ability of the air conditioner 21 to stably cool the room (cooling ability) or the ability to heat (heating ability). The rated capacity (kW) varies depending on the size of the room. The rated power consumption is the power consumption of the air conditioner 21 when the air conditioner 21 exhibits the rated capacity.

  In the specification of the power characteristics of the air conditioning equipment 21 before the update, the heating rated capacity (kW) and the heating rated power consumption (kW) at the predetermined second outside air temperature are supplied to the air conditioning equipment 21. Corresponding to each AC frequency of power. The second outside air temperature is, for example, 7 degrees Celsius. In FIG. 2, as an example, the rated capacity of heating “14.0 kW” and the rated power consumption of heating “3.5 kW” are associated with the AC frequency “50 Hz” of the power supplied to the air conditioner 21. .

  In the specification of the air conditioner 21 before the update, the intermediate capacity and the intermediate power consumption may be associated with each AC frequency of the power supplied to the air conditioner 21. Intermediate capacity is about half the rated capacity. The intermediate power consumption is power consumption when the intermediate capability is exhibited. In the specification of the air conditioner 21 before the update, the minimum capacity and the minimum power consumption may be associated with each AC frequency of the power supplied to the air conditioner 21. The minimum ability is the minimum ability lower than the intermediate ability. The minimum power consumption is the power consumption when the minimum capacity is exhibited.

  FIG. 3 is a diagram illustrating an example of the specification of the power characteristics of the lighting device 22 before the update. In the specification of the lighting device 22 before the update, the rated power, the power consumption, and the color temperature are associated with each AC frequency of the power supplied to the lighting device 22. The power consumption of the lighting device 22 varies depending on the color temperature. In FIG. 3, the rated power “10 W”, the power consumption “9.5 W”, and the color temperature “6000 K” are associated with each other.

  FIG. 4 is a diagram illustrating an example of the specification of the power characteristics of the cooler 23 before update. In the specification of the cooler 23 before the update, the rated power and the power consumption are associated with each AC frequency of the power supplied to the cooler 23. In FIG. 4, the rated power “10 kW” and the power consumption “4.0 kW” are associated with each other.

  FIG. 5 is a diagram illustrating an example of the specification of the power characteristics of the air conditioner 21 after the update. In the specifications of the air conditioner 21 after the update, the rated capacity (kW) of cooling and the rated power consumption (kW) of cooling at the first outside air temperature correspond to the AC frequency of the power supplied to the air conditioner 21. It is attached. In FIG. 5, as an example, the rated capacity of cooling “14.0 kW” and the rated power consumption of cooling “3.0 kW” are associated with the AC frequency “50 Hz” of the power supplied to the air conditioner 21. .

  In the specifications of the air conditioner 21 after the update, the heating rated capacity (kW) and the heating rated power consumption (kW) at the second outside air temperature are determined for each AC frequency of the electric power supplied to the air conditioner 21. It is associated. In FIG. 5, as an example, the rated capacity of heating “14.0 kW” and the rated power consumption of heating “2.5 kW” are associated with the AC frequency “50 Hz” of the power supplied to the air conditioner 21. .

  FIG. 6 is a diagram illustrating an example of the specification of the power characteristics of the lighting device 22 after the update. In the specification of the lighting device 22 after the update, the rated power, the power consumption, and the color temperature are associated with each AC frequency of the power supplied to the lighting device 22. The power consumption of the lighting device 22 varies depending on the color temperature. In FIG. 6, as an example, the rated power “10 W”, the power consumption “9.0 W”, and the color temperature “6000 K” are associated with each other.

  FIG. 7 is a diagram illustrating an example of the specification of the power characteristics of the refrigerating machine 23 after the update. In the specification of the cooler 23 after the update, the rated power and the power consumption are associated with each AC frequency of the power supplied to the cooler 23. In FIG. 7, the rated power “10 kW” and the power consumption “3.0 kW” are associated with each other.

  FIG. 8 is a diagram illustrating an example of actual operation data of the target device group 20 after the update. In the actual operation data of the target device group 20 after the update, the device, the operation date, the operation time zone, and the load factor are associated with each other. In FIG. 8, as an example, the device “air conditioning device 21”, the operation date “November 11”, the operation time zone “09:08:00 to 18:00”, and the load factor “20%” are associated with each other. ing. As an example, the power consumption of the heating air conditioner 21 is 0.5 kW corresponding to the load factor “20%” of the rated power consumption “2.5 kW” of heating.

  In FIG. 8, as an example, the device “lighting device 22”, the operation date “November 11”, the operation time zone “09: 09: 00-19: 00”, and the load factor “90%” are associated. ing. As an example, the power consumption of the lighting device 22 is 9.0 kW corresponding to the load factor “90%” of the rated power consumption “10 W”.

  In FIG. 8, as an example, the device “cooling machine 23”, the operation date “November 11”, the operation time zone “00: 00-24: 00”, and the load factor “30%” are associated. ing. As an example, the power consumption of the refrigerator 23 is 3.0 kW corresponding to the load factor “30%” of the rated power consumption “10 kW”.

  The air conditioner 21 may be associated with an outside air temperature. In FIG. 8, as an example, the device “air conditioner 21” and the outside air temperature “20 degrees Celsius” are associated with each other. In FIG. 8, as an example, the lighting device 22 may be associated with a color temperature. In FIG. 8, as an example, the device “lighting device 22” and the color temperature “6000K” are associated with each other.

  The pre-update simulation unit 33 illustrated in FIG. 1 acquires the specification of the air conditioning device 21 before the update from the database 32. The pre-update simulation unit 33 acquires the specification of the lighting device 22 before the update from the database 32. The pre-update simulation unit 33 acquires the specifications of the cooler 23 before the update from the database 32. The pre-update simulation unit 33 acquires the actual operation data of the target device group 20 after the update from the database 32.

  The pre-update simulation unit 33 (pre-update determination unit) simulates (simulates) the operation of the target device group 20 before update based on the actual operation data of the target device group 20 after update. That is, the pre-update simulation unit 33 simulates the operation of the target device group 20 before update under the same conditions as the power load conditions for the target device group 20 after update. For example, the pre-update simulation unit 33 updates based on the operation date, operation time zone, and load factor of the target device group 20 after update, and the specifications of the target device group 20 before update shown in FIGS. The operation of the previous target device group 20 is simulated.

  For example, the pre-update simulation unit 33 performs the operation of the air conditioner 21 before update based on the operation date, the operation time zone, the load factor of the air conditioner 21, and the specifications of the air conditioner 21 before update shown in FIG. Simulate. The load factor may include an air conditioning load due to the outside air temperature during the operation time period.

  For example, the pre-update simulation unit 33 performs the operation of the lighting device 22 before the update based on the operation date, the operation time zone, the load factor of the lighting device 22, and the specification of the lighting device 22 before the update illustrated in FIG. Simulate. The load factor may include an illumination load corresponding to the color temperature. The load factor may include an illumination load corresponding to the amount of light incident from the window into the room during the operation time period.

  For example, the pre-update simulation unit 33 performs the operation of the cooler 23 before update based on the operation date, the operation time zone, the load factor of the cooler 23, and the specifications of the cooler 23 before update shown in FIG. Simulate.

  The pre-update simulation unit 33 determines an estimated value of the power consumption of the target device group 20 before the update based on the simulation result. The pre-update simulation unit 33 determines an estimated value of the power consumption of the target device group 20 before the update during a predetermined period. The predetermined period is, for example, one year. The pre-update simulation unit 33 may determine an estimated value of power consumption before update for each device before update. The pre-update simulation unit 33 transmits an estimated value of the power consumption of the target device group 20 before the update to the device-derived determination unit 35.

  The pre-update simulation unit 33 may estimate the total cooling capacity and heating capacity (hereinafter referred to as “total load”) required for one year. The pre-update simulation unit 33 may transmit the estimated value of the total load to the device-derived determination unit 35. The pre-update simulation unit 33 estimates the annual performance factor (APF) of the air-conditioning equipment 21 before the update based on the power consumption and total load of the air-conditioning equipment 21 before the update for one year ( Determination). The year-round energy consumption efficiency is the result of dividing the total load by the amount of power consumed by the device in one year. The energy saving performance increases as the value of energy consumption efficiency throughout the year increases.

  The year-round energy consumption efficiency and the amount of power consumption are calculated based on, for example, conditions shown in Japanese Industrial Standards (JIS B8616: 2015). The condition is expressed by a mathematical expression, for example. The mathematical formula may be included in the spreadsheet software. The pre-update simulation unit 33 may transmit the estimated value of the year-round energy consumption efficiency of the target device group 20 before the update to the device-derived determination unit 35.

  FIG. 9 is a diagram illustrating an example of an estimated value of the power consumption of the air conditioner 21 before the update. In FIG. 9, a period, an estimated value of total load, an estimated value of power consumption, and an estimated value of energy consumption efficiency are associated with each other.

  In FIG. 9, as an example, the estimated value “7000 kWh” of the total load and the estimated value “1200 kWh” of the power consumption are associated with each other in the summer season of the cooling period. In FIG. 9, as an example, the estimated value “3000 kWh” of the total load and the estimated value “800 kWh” of the power consumption are associated with each other except in the summer season of the cooling period. In FIG. 9, as an example, for the cooling period, the total value “10000 kWh” of the total load estimation value, the total value “2000 kWh” of the power consumption estimation value, and the year-round energy consumption efficiency estimation value “5.0 ( = 10000/2000) ”.

  In FIG. 9, as an example, the estimated value “2000 kWh” of the total load and the estimated value “600 kWh” of the power consumption are associated with each other in the winter season of the heating period. In FIG. 9, as an example, the estimated value “0 kWh” of the total load and the estimated value “0 kWh” of the power consumption are associated with each other except for the winter season of the heating period. In FIG. 9, as an example, for the heating period, the total value “2000 kWh” of the total load estimation value, the total value “600 kWh” of the power consumption estimation value, and the year-round energy consumption efficiency estimation value “3.3 ( = 2000/600) ”.

  In FIG. 9, as an example, for the whole year (one year), the estimated value “12000 kWh” of the total load, the estimated value “2600 kWh” of the power consumption, and the estimated value “4.6 (= 12000 / year) of the annual energy consumption. 2600) ”.

  The post-update simulation unit 34 (post-update determination unit) illustrated in FIG. 1 acquires the updated specifications of the air conditioning equipment 21 from the database 32. The updated simulation unit 34 acquires the updated specifications of the lighting device 22 from the database 32. The post-update simulation unit 34 acquires the updated specifications of the cooler 23 from the database 32. The post-update simulation unit 34 acquires the actual operation data of the target device group 20 after the update from the database 32.

  The post-update simulation unit 34 simulates (simulates) the operation of the updated target device group 20 based on the actual operation data of the updated target device group 20. That is, the updated simulation unit 34 simulates the operation of the updated target device group 20 under the condition of the power load on the updated target device group 20. For example, the updated simulation unit 34 updates the updated target device group 20 based on the operation date, the operation time zone, the load factor, and the updated target device group 20 specifications shown in FIGS. The operation of the later target device group 20 is simulated.

  For example, the post-update simulation unit 34 performs the operation of the air conditioner 21 after the update based on the operation date, the operation time zone, the load factor of the air conditioner 21, and the specifications of the air conditioner 21 after the update shown in FIG. Simulate. The load factor may include an air conditioning load due to the outside air temperature during the operation time period.

  For example, the updated simulation unit 34 performs the operation of the updated lighting device 22 based on the operation date, the operating time zone, the load factor of the lighting device 22, and the specification of the updated lighting device 22 illustrated in FIG. Simulate. The load factor may include an illumination load corresponding to the color temperature. The load factor may include an illumination load corresponding to the amount of light incident from the window into the room during the operation time period.

  For example, the post-update simulation unit 34 performs the operation of the post-update cooler 23 based on the operation date, the operation time zone, the load factor, and the specifications of the post-update cooler 23 shown in FIG. Simulate.

  The post-update simulation unit 34 determines an estimated value of the power consumption of the target device group 20 after the update based on the simulation result. The post-update simulation unit 34 determines an estimated value of the power consumption of the target device group 20 after the update in a predetermined period. The predetermined period is, for example, one year. The post-update simulation unit 34 may determine the updated power consumption estimation value for each updated device. The updated simulation unit 34 transmits the updated estimated power consumption value of the target device group 20 to the device-derived determination unit 35.

  The post-update simulation unit 34 may estimate the total load. The post-update simulation unit 34 may transmit the estimated value of the total load to the device-derived determination unit 35. The updated simulation unit 34 estimates (determines) the year-round energy consumption efficiency (APF) of the updated air conditioning equipment 21 based on the power consumption and the total load of the updated air conditioning equipment 21 for one year. Also good. The post-update simulation unit 34 may transmit the estimated value of the year-round energy consumption efficiency of the target device group 20 after the update to the device-derived determination unit 35.

  FIG. 10 is a diagram illustrating an example of an estimated value of the power consumption of the air conditioning device 21 after the update. In FIG. 10, a period, an estimated value of total load, an estimated value of power consumption, and an estimated value of energy consumption efficiency are associated with each other.

  In FIG. 10, as an example, the estimated value “7000 kWh” of the total load and the estimated value “1000 kWh” of the power consumption are associated with each other in the summer season of the cooling period. In FIG. 10, as an example, the estimated value “3000 kWh” of the total load and the estimated value “500 kWh” of the power consumption are associated with each other except in the summer season of the cooling period. In FIG. 10, as an example, for the cooling period, the total value “10000 kWh” of the total load estimation value, the total value “1500 kWh” of the power consumption estimation value, and the year-round energy consumption efficiency estimation value “6.7 ( = 10000/1500) ”.

  In FIG. 10, as an example, the estimated value “2000 kWh” of the total load and the estimated value “500 kWh” of the power consumption are associated with each other in the winter season of the heating period. In FIG. 10, as an example, the estimated value “0 kWh” of the total load and the estimated value “0 kWh” of the power consumption are associated with each other except for the winter season of the heating period. In FIG. 10, as an example, for the heating period, the total value “2000 kWh” of the estimated value of the total load, the total value “500 kWh” of the estimated value of power consumption, and the estimated value “4.0 ( = 2000/500) ”.

  In FIG. 10, as an example, for one year (full year), the estimated value “12000 kWh” of the total load, the estimated value “2000 kWh” of the power consumption, and the estimated value “6.0 (= 12000 / = 12000 / year) 2000) ”.

  The device-derived determination unit 35 illustrated in FIG. 1 calculates the power consumption of the target device group 20 before the update and the power consumption of the target device group 20 after the update for a predetermined period. Get from. The predetermined period is, for example, one year. The device-derived determination unit 35 may acquire the year-round energy consumption efficiency of the updated target device group 20 from the updated simulation unit 34.

  The device-derived determination unit 35 determines a difference between the estimated value of the power consumption of the target device group 20 after the update and the estimated value of the power consumption of the target device group 20 before the update. For example, the device-derived determination unit 35 subtracts the estimated power consumption amount of the target device group 20 after the update from the estimated power consumption amount of the target device group 20 before the update. The device-derived determination unit 35 determines the result of subtracting the estimated power consumption amount of the target device group 20 after the update from the estimated power consumption amount of the target device group 20 before the update as the device-derived power consumption reduction amount. To do. The device-derived determination unit 35 transmits the device-derived power consumption reduction amount to the operation-derived determination unit 36 and the output unit 37.

  The operation origin determination unit 36 acquires the actual measurement value of the power consumption of the target device group 20 before the update from the database 32. The operation origin determination unit 36 acquires the actual measurement value of the power consumption of the target device group 20 after the update from the database 32.

  The operation origin determination unit 36 determines a difference between the actual measurement value of the power consumption of the target device group 20 before the update and the actual measurement value of the power consumption of the target device group 20 after the update. For example, the actual measurement value of the power consumption of the target device group 20 after the update is subtracted from the actual measurement value of the power consumption of the target device group 20 before the update. The operation-derived determination unit 36 subtracts the result of subtracting the actual measurement value of the power consumption of the target device group 20 after the update from the actual measurement value of the power consumption of the target device group 20 before the update. Determined as power consumption reduction. The operation origin determination unit 36 may acquire information indicating the power consumption reduction amount of the updated target device group 20.

  The operation origin determination unit 36 may determine a reduction amount of the electricity charge (hereinafter referred to as “electricity charge reduction amount”) based on the power consumption reduction amount of the updated target device group 20. For example, the operation-derived determining unit 36 multiplies the actual value of the power consumption reduction amount of the updated target device group 20 by the unit price of the electric charge, and the actual value of the electric charge reduction amount of the target device group 20 after the update. decide. For example, the operation derivation determination unit 36 subtracts the result of subtracting the actual measured value of the electric charge of the target device group 20 after the update from the actual value of the electric charge of the target device group 20 before the update. It may be determined as an actual measured value of the electricity charge reduction amount.

  The operation-derived determining unit 36 acquires the device-derived power consumption reduction amount from the device-derived determining unit 35. The operation-derived determination unit 36 determines the difference between the updated power consumption reduction amount of the target device group 20 and the device-derived power consumption reduction amount. For example, the operation-derived determination unit 36 subtracts the device-derived power consumption reduction amount from the power consumption reduction amount of the updated target device group 20. The result of subtracting the device-derived power consumption reduction amount from the power consumption reduction amount of the target device group 20 after the update is determined as the operation-derived power consumption reduction amount.

  The output unit 37 (display unit) is a display device. The output unit 37 displays the power consumption reduction amount. The output unit 37 displays data indicating the device-derived power consumption reduction amount and data indicating the operation-derived power consumption reduction amount. For example, the output unit 37 displays data indicating the device-derived power consumption reduction amount and data indicating the operation-derived power consumption reduction amount in a tabular form so that they can be compared. The output unit 37 may display the electricity charge reduction amount. The output unit 37 may be a communication device. When the output unit 37 is a communication device, the output unit 37 transmits data indicating the power consumption reduction amount to another device.

  FIG. 11 is a diagram illustrating a first example of display of the power consumption reduction amount. In FIG. 11, the estimated power consumption amount “3600 kWh” of the target device group 20 before the update is associated with the estimated power consumption amount “3000 kWh” of the target device group 20 after the update. In FIG. 11, the actual measurement value “3600 kWh” of the power consumption amount of the target device group 20 before the update is associated with the actual measurement value “2800 kWh” of the power consumption amount of the target device group 20 after the update.

  In FIG. 11, the actual measurement value “800 kWh” of the power consumption reduction amount of the target device group 20 after the update, the actual measurement value or estimated value “600 kWh” of the device-derived power consumption reduction amount, and the actual measurement value of the operation-derived power consumption reduction amount Alternatively, the estimated value “200 kWh” is associated. The actual measurement value “800 kWh” of the power consumption reduction amount of the target device group 20 after the update is the power consumption amount of the target device group 20 after the update from the actual measurement value “3600 kWh” of the power consumption amount of the target device group 20 before the update. This is a result of subtracting the actual measurement value “2800 kWh”.

  In FIG. 11, the actual value “80000” of the electricity charge reduction amount of the target device group 20 after the update, the actually measured value or estimated value “60000” of the electricity charge reduction amount derived from the device, and the electricity charge reduction amount derived from the operation are shown. The actual measurement value or the estimated value “20000” is associated.

  As described above, the power estimation apparatus 30 according to the first embodiment includes the pre-update simulation unit 33 (pre-update determination unit), the post-update simulation unit 34 (post-update determination unit), the device-derived determination unit 35, And an operation origin determination unit 36. The pre-update simulation unit 33 determines an estimated value of the power consumption of the device before the update based on the data regarding the operation of the device after the update. The post-update simulation unit 34 determines an estimated value of the power consumption of the updated device based on the data regarding the operation of the updated device. The device-derived determination unit 35 determines the difference between the estimated value of the power consumption of the device before the update and the estimated value of the power consumption of the device after the update as the device-derived power consumption reduction amount. The operation-derived determination unit 36 acquires the actual measurement value of the power consumption reduction amount of the updated device, and calculates the difference between the device-derived power consumption reduction amount and the actual measurement value of the power consumption reduction amount of the updated device. Determined as the amount of power reduction.

  As a result, the power estimation apparatus 30 according to the first embodiment can reduce the power consumption that has been reduced after the update because the power characteristics of the device after the update have improved compared to those before the update (the device-derived power consumption reduction). Amount) and the power consumption (operation-derived power consumption reduction) that can be reduced after the update due to the improvement of the operation method of the device after the update compared to before the update.

  The power estimation apparatus 30 of the first embodiment calculates the power consumption of the device before the update when it is assumed that the device before the update is operated under the condition indicated by the actual operation data acquired from the device after the update. It can be estimated by simulation.

(Second Embodiment)
The second embodiment is different from the first embodiment in that the power estimation device 30 further estimates the power consumption of a device group that is not a target for which operational data is actually measured. In the second embodiment, only differences from the first embodiment will be described.

  FIG. 12 is a diagram illustrating a second example of the configuration of the power estimation system 1b. The power estimation system 1 b includes a power meter 10, a target device group 20, a power estimation device 30, and a non-target device group 40. The non-target device group 40 is a device group that is not a target whose actual operation data is actually measured. The non-target device group 40 is, for example, an information processing device such as an imaging device, an elevator, or a personal computer device. The imaging device is, for example, a security camera.

  The wattmeter 10 measures the amount of power supplied to the target device group 20 from a commercial power system. That is, the wattmeter 10 measures the power consumption of the updated target device group 20 and the non-target device group 40. The wattmeter 10 transmits the measured power consumption values of the updated target device group 20 and the non-target device group 40 to the power estimation apparatus 30. The output unit 37 displays the power consumption reduction amount on the display unit.

  FIG. 13 is a diagram illustrating a second example of display of the power consumption reduction amount. In FIG. 13, the estimated power consumption amount “3600 kWh” of the target device group 20 before the update and the estimated power consumption amount “3000 kWh” of the target device group 20 after the update are associated with each other. In FIG. 13, the measured power consumption “4600 kWh” of the target device group 20 and the non-target device group 40 before the update and the actual measured value “4600 kWh” of the target device group 20 and the non-target device group 40 after the update “ 3800 kWh ”.

  In FIG. 13, the actual measurement value “800 kWh” of the power consumption reduction amount of the target device group 20 and the non-target device group 40 after the update, the actual measurement value “600 kWh” of the device-derived power consumption reduction amount, and the operation-derived power consumption reduction amount Is actually associated with “200 kWh”. The actual measurement values of the power consumption reduction amount of the target device group 20 and the non-target device group 40 after the update are the target devices after the update from the actual measurement values of the power consumption amount of the target device group 20 and the non-target device group 40 before the update. This is a result of subtracting the actual measurement values of the power consumption of the group 20 and the non-target device group 40.

  In FIG. 13, the actual measured value “80000” of the electricity charge reduction amount of the updated target device group 20 and the non-target device group 40, the actual measurement value “60000” of the device-derived electricity charge reduction amount, and the operation-derived electricity charge The actual amount of reduction “20000” is associated. The actual value of the electricity charge reduction amount of the target device group 20 and the non-target device group 40 after the update is calculated from the actual value of the electricity charge of the target device group 20 and the non-target device group 40 before the update. 20 is a result of subtracting the measured value of the electricity charges of 20 and the non-target device group 40.

  As described above, the output unit 37 of the second embodiment includes the data indicating the power consumption reduction amount of the target device group 20 and the non-target device group 40 before the update, the target device group 20 and the non-target device after the update. Data indicating the power consumption reduction amount of the group 40 is displayed. The output unit 37 of the second embodiment includes data indicating power consumption reduction amounts of the target device group 20 and the non-target device group 40 before the update, and power consumption of the target device group 20 and the non-target device group 40 after the update. Data indicating the reduction amount may be transmitted to another device.

  Thereby, the power estimation apparatus 30 of the second embodiment can reduce the power consumption of the target device group 20 and the non-target device group 40 before the update, and the consumption of the target device group 20 and the non-target device group 40 after the update. The amount of power reduction can be displayed.

  According to at least one of the embodiments described above, the difference between the estimated value of the power consumption of the device before the update and the estimated value of the power consumption of the device after the update is derived from the power characteristics of the device after the update. The device-derived determining unit that determines the power reduction amount and the power consumption reduction amount derived from the power characteristics of the updated device by acquiring the actual measured value of the power consumption reduction amount of the updated device and the power consumption reduction of the updated device By having the power consumption reduction amount derived from the operation of the device after the update and the operation origin determination unit that determines the difference from the actual measured value of the amount, the power characteristics of the device after the update have improved compared to before the update In particular, it is possible to distinguish between the power consumption reduction amount derived from the power consumption reduction amount and the power consumption reduction amount derived from the improvement of the operation method of the device after the update compared to before the update.

  As mentioned above, although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1a ... Power estimation system, 1b ... Power estimation system, 10 ... Wattmeter, 20 ... Target apparatus group, 21 ... Air-conditioning equipment, 22 ... Lighting equipment, 23 ... Cold machine, 30 ... Power estimation apparatus, 31 ... Communication part, 32 ... Database, 33 ... Pre-update simulation unit, 34 ... Post-update simulation unit, 35 ... Device-derived decision unit, 36 ... Operation-derived decision unit, 37 ... Output unit, 40 ... Non-target device group

Claims (6)

A pre-update determination unit that determines an estimated value of power consumption of the device before update based on data related to operation of the device after update;
An after-update determination unit that determines an estimated value of the power consumption of the updated device based on data related to the operation of the updated device;
From the device that determines the difference between the estimated value of the power consumption of the device before the update and the estimated value of the power consumption of the device after the update as the power consumption reduction amount derived from the power characteristics of the device after the update A decision unit;
Obtain an actual measurement value of the power consumption reduction amount of the updated device, and calculate a difference between the power consumption reduction amount derived from the power characteristics of the updated device and the actual measurement value of the power consumption reduction amount of the updated device. , An operation-derived determining unit that determines a power consumption reduction amount derived from the operation of the device after the update,
A power estimation apparatus comprising:   The power estimation apparatus according to claim 1, wherein when the updated device is an air conditioning device, the updated determination unit determines a year-round energy consumption efficiency of the updated device.   The power estimation apparatus according to claim 1, wherein the operation-derived determination unit determines a reduction amount of an electricity bill based on an actual measurement value of a power consumption reduction amount of the updated device. The apparatus further comprises an output unit that outputs data indicating power consumption reduction amount derived from power characteristics of the updated device and data indicating power consumption reduction amount derived from operation of the updated device. The power estimation apparatus described. A power estimation method in a power estimation device, comprising:
Determining an estimated value of power consumption of the device before the update based on data relating to the operation of the device after the update;
Determining an estimated value of power consumption of the updated device based on data relating to the operation of the updated device;
Determining a difference between the estimated value of power consumption of the device before update and the estimated value of power consumption of the device after update as a power consumption reduction amount derived from the power characteristics of the device after update; ,
Obtain an actual measurement value of the power consumption reduction amount of the updated device, and calculate a difference between the power consumption reduction amount derived from the power characteristics of the updated device and the actual measurement value of the power consumption reduction amount of the updated device. Determining a power consumption reduction amount derived from the operation of the updated device;
A power estimation method including: On the computer,
A procedure for determining an estimated value of power consumption of the device before the update based on data relating to the operation of the device after the update;
A procedure for determining an estimated value of power consumption of the updated device based on data relating to operation of the updated device;
A procedure for determining a difference between an estimated value of power consumption of the device before update and an estimated value of power consumption of the device after update as a power consumption reduction amount derived from the power characteristics of the device after update; ,
Obtain an actual measurement value of the power consumption reduction amount of the updated device, and calculate a difference between the power consumption reduction amount derived from the power characteristics of the updated device and the actual measurement value of the power consumption reduction amount of the updated device. , A procedure for determining a power consumption reduction amount derived from the operation of the device after the update,
A power estimation program for executing

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