JP5227707B2 - Air-conditioning energy-saving control device - Google Patents

Description

  The present invention relates to an air-conditioning energy-saving control device that takes comfort into consideration.

  As a means to save energy in air conditioning equipment installed in buildings, a central monitoring and control device is introduced, intermittent operation control that periodically starts and stops the air conditioner, There is a schedule operation control in which a “OFF” schedule is created in advance and executed according to the schedule.

  In addition, as described in Japanese Patent Application Laid-Open No. 2005-158020 (Patent Document 1), some air conditioning control is performed based on a calculation formula of a comfort index such as PMV (Predicted Mean Vote).

JP 2005-158020 A

  In the above-described scheduled operation control and intermittent operation control, the control method is only “on” and “off” control, and the air conditioning temperature cannot be set, so fine control cannot be performed. For this reason, if the schedule operation or intermittent operation settings are relaxed for people, it will not save much energy, and conversely, if the settings are made stricter, it will save energy but people in the room will be very inefficient. You will have a pleasant feeling. In addition, there is a problem that it is impossible to accurately predict how much energy will be saved by such control.

  Recently, revisions to laws on the rationalization of energy use have made it mandatory to implement energy conservation, and efforts to save energy have become necessary in order to obtain ISO 14001 certification. Activities are underway to set and save energy to achieve the target value.

  In the control method disclosed in Japanese Patent Laid-Open No. 2005-158020, energy-saving control is performed in consideration of comfort. However, for the energy-saving manager, the control logic is complicated, and the degree of freedom in setting energy-saving is small, so it is not always used. It's not easy.

  The present invention has been made in consideration of the above-described problems. The energy saving manager can easily set the comfort level and the energy saving target value, and can target the amount of power used within the allowable range of comfort. Provided is an air-conditioning energy-saving control device that can be suppressed to a value below the value.

  In order to solve the above problems, in a system for performing a control schedule for an air conditioner, means for registering a standard set temperature and an upper limit value and a lower limit value for the temperature are provided in addition to the air conditioner start / stop schedule.

  Here, the upper limit value means increasing comfort, and the lower limit value means progressing in a direction that contributes to energy saving.

  Furthermore, preferably, by adding any one or more of the following means, the amount of power used can be suppressed to a target value or less within an acceptable range of comfort.

(1) Means for separately setting the cooling operation and the heating operation in the operation schedule of the air conditioner to be registered.
(2) Means for inputting the set temperature of the air conditioner and the stop of the air conditioner to the operation schedule of the air conditioner to be registered.
(3) Measuring means for storing the set temperature of the air conditioner, means for collecting and storing the power consumption of the target air conditioner in units of time, and measuring environmental measurement values such as outside air temperature, outside air humidity, and indoor temperature Means for inputting and storing the value.
(4) Means for predicting the power consumption of the air conditioner at that time for the operation schedule of the air conditioner in which the set temperature is registered.
(5) Means for setting one area by combining a plurality of air conditioners.
(6) Means for inputting a calculation method of the power consumption for the set area.
(7) Means for inputting a target value of the power consumption for the set area.
(8) Means for calculating the predicted power consumption when the air conditioning schedule operation is performed with the standard and lower limit values during the period in which the target value is input.
(9) Compare the predicted usage amount with the target value, and if the target value is likely to be exceeded, set the temperature difference of the air conditioner within the set range so that the difference from the standard setting temperature is minimized. A means of predicting temperature.
(10) Means for selecting cost priority or comfort priority for the set area.
(11) A means for comparing the lower limit value with the target value, and when the lower limit value exceeds the target value, switching the air-conditioning operation schedule depending on whether priority is given to cost or comfort.
(12) Means for comparing the predicted usage amount with the target value and switching the air-conditioning operation schedule depending on whether cost priority or comfort level priority when the predicted usage amount falls below the target value.
(13) Means for controlling the operation of the air conditioner according to the operation schedule of the air conditioner determined by the above method.
(14) Means for daily updating the operation schedule of the air conditioner determined by the above method.
(15) Means for acquiring weather data from the next day on via the Internet.
(16) Means for manually registering weather data for the following day and after.
(17) Means for estimating meteorological data from the next day on the basis of measured values measured in the past.
(18) Means for comparing and displaying the predicted power consumption and the actual power consumption for the set area.

  According to the present invention, the degree of freedom of energy saving setting is improved, and the allowable range of the set temperature of the air conditioner can be used well. Therefore, it is possible to save energy without impairing comfort for residents. .

  By providing an item in which the allowable range of the set temperature of the air conditioner can be input, an optimal air conditioning operation schedule that can be kept below the target power consumption of the air conditioner without impairing comfort is realized.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows a system configuration diagram of an air-conditioning energy-saving control apparatus according to an embodiment of the present invention. In this embodiment, the allowable range of the set temperature of the air conditioner and the target value of the air conditioning power consumption are input, and the optimal air conditioning operation schedule that satisfies the target value is predicted based on the data, and the air conditioner operation control is performed. To implement.

  In the building or factory 1, a measured value such as the amount of electric power is collected, and a system device (2-9) for controlling the air conditioner based on the analysis result is installed.

  The air conditioning controller 3 is connected to an air conditioner (10a to 10n) installed in a building or factory 1 through a field network 9, and is turned on, off, It has a function that can control “temperature setting”, “cooling / heating mode” and the like, and a function that can acquire and accumulate the current operating state (on / off state, temperature setting value, cooling / heating mode state, etc.) of these air conditioners.

  The data collection device 4 is connected to the watt hour meter (6a to 6m) through the field network 9, and has a function of collecting the power amount measured by the watt hour meter (6a to 6m) and storing the data. ing.

  It is desirable that the target range to be measured by the watt hour meter (6a to 6m) can be measured in units of electric energy used by each air conditioner (10a to 10n). Even if the amount of power other than air conditioning, such as the amount of power for lighting, is mixed, it is sufficient if it can be separated to some extent by calculation.

  The data collection device 5 is connected to the temperature / humidity sensors (7a to 7k) by the field network 9, and the outside air temperature, the outside air humidity, the room temperature of each floor, the room humidity measured by the temperature / humidity sensors (7a to 7k). It is a device that collects and accumulates.

  In FIG. 1, the air conditioning controller 3, the data collection device 4, and the data collection device 5 are functionally separated from each other, but actually do not need to be separated. For example, the data collection device 4 collects the room temperature. It is also possible to control “ON” and “OFF” of the air conditioner (hereinafter, “ON” and “OFF” are described as start / stop).

  The number of the air conditioning control controller 3, the data collection device 4, and the data collection device 5 does not have to be one each, and is divided into a plurality of units according to the scale of the building or factory 1 or the number of points for data collection and air conditioning control. You may install in a distributed manner.

  Further, instead of the temperature / humidity sensors (7a to 7k), the air conditioning controller 3 collects the suction temperature of each air conditioner (10a to 10n) or the humidity measured by the air conditioner, and uses the measured values as the room temperature and the room humidity. It can also be considered.

  The man-machine device 2 sets a single area by combining a screen that allows the user to enter the allowable temperature range of the air conditioner, and a combination of multiple air conditioners. It has a function that can display a screen that allows you to enter whether the priority is comfort level.

  These screens can be expanded from a menu screen of a system called an energy saving system.

  The man-machine device 2 is connected to the air conditioning control controller 3, the data collection device 4 and the data collection device 5 via the LAN 8, and the air conditioning accumulated in the air conditioning control controller 3, the data collection device 4 and the data collection device 5. Collect measurement data such as machine operating status, power consumption, outside air temperature / humidity, room temperature / humidity, etc., and at least one hour unit, in the case of power consumption, use the amount for one hour. For analog data such as room temperature / humidity and set temperature of the air conditioner, the average value for one hour is calculated. When the air conditioner is on / off, the operation time of the air conditioner is calculated. Manage data by time. In this man-machine device 2, it is possible to display the collected and calculated measurement data as a daily report and a monthly report in a table and a graph. You can also see the effect.

  Furthermore, the man-machine device 2 is provided with an algorithm for predicting an operation schedule for the next day or later of the corresponding air conditioner so as not to exceed the amount of use with respect to the target amount of use set above and to minimize comfort. And it has a control function to schedule operation according to it.

  When predicting the operation schedule of the air conditioner after the next day, when trying to obtain weather data such as the outside air temperature and outside air humidity after the next day from the outside, a router 11 to which the Internet 12 can be connected is installed, and the center server 13 Alternatively, weather data can be downloaded to the man-machine device 2 from the weather association (not shown in the figure) via the Internet 12.

  The man-machine device 2 has a function capable of capturing weather data via the Internet 12 in order to increase the accuracy of prediction of the air conditioning operation schedule. It also has a function to estimate predicted values from past weather data.

  Further, the man machine device 2 has a Web server function, and if a client personal computer 14 is connected to the LAN 8, a screen generated by the man machine device 2 can be viewed on a browser.

  As long as the man-machine device 2 is connected to the Internet 12, the center server 13 may have the function of the man-machine device 2 and may not be installed in the building or factory 1.

  FIGS. 2 and 3 to 7 show screens or setting files to be registered in advance when predicting an operation schedule for the next day or later of the air conditioner so as to satisfy the target usage amount of the air conditioner within the allowable range of comfort. Show.

  FIG. 2 is an example of a schedule registration screen displayed on the man-machine device 2.

  As an operation method, first, an air conditioner for which an operation schedule is to be registered is selected from the air conditioner pull-down 22. The date for carrying out the air conditioning operation schedule control is set from the year / month / day pull-down 21. Further, in order to set the operation mode of the air conditioner, the summer or winter season is selected from the season setting pull-down 23. The summer season means air conditioner operation in the cooling mode, and the winter season means air conditioner operation in the heating mode.

  Note that the date input and the season input are not set every day as shown in FIG. 2, but a calendar setting screen or a season switching screen can be newly provided and set in a batch. .

  Next, the time at which the air conditioning control is desired is input in the time setting input field 24. The standard comfort level input field 25 is a screen for inputting an air conditioning set temperature for air conditioning operation during normal times, and the 100% comfort level (upper limit value) input field 26 is used to input an upper limit value for the normal set temperature. It is a screen to do. The upper limit value described here indicates a direction in which comfort is improved (a direction in which the set temperature decreases in the case of cooling, and a direction in which the set temperature increases in the case of heating operation).

  The 0% comfort level (lower limit value) input field 27 is a screen for inputting a lower limit value with respect to the normal set temperature. The lower limit value described here indicates a direction in which comfort is reduced and energy is saved (a direction in which the set temperature increases in the case of cooling, and a direction in which the set temperature decreases in the case of heating operation).

  Each input field (25 to 27) can input both for cooling and for heating, but only those corresponding to the season selected by the season setting pull-down 23 are valid.

  The air conditioning temperature corresponding to the time set in the time setting input field 24 is set in each input field (25 to 27). The air conditioner stop (OFF) can also be entered in the air conditioning temperature input field. In FIG. 2, the time zone in which the air conditioning temperature is input includes ON control of the air conditioner, and it is also possible to provide an ON setting of the air conditioner as a separate item.

  After the setting is completed, the registration button 28 is pressed to save the setting data. If it is not desired to register the setting data, the cancel button 29 is pressed to cancel the set contents and the screen is terminated.

  FIG. 3 is a graph showing the daily air conditioning operation schedule registered in FIG.

  A solid line 31 in FIG. 3 is a standard operation schedule, and the target air conditioner is turned on and set to 25 ° C. It shows a schedule for changing the setting to 22 ° C. at 10 o'clock, stopping the air conditioner at 17:00 to 25 ° C., and 20:00.

  Similarly, the broken line 32 indicates the air conditioning operation schedule at the upper limit value, and the alternate long and short dash line 33 indicates the air conditioning operation schedule at the lower limit value.

  FIG. 4 shows an example of an area registration screen in which one area can be set by combining one or a plurality of air conditioners.

  As an operation method, first, an area name to be registered is input in the registration name input field 41.

  In the air conditioner list 42, all of the air conditioners registered in FIG. 2 are displayed in a list. The air conditioner corresponding to the area to be registered is selected, and the selection button 44 is pressed.

  The selected air conditioner list 43 shows an air conditioner list corresponding to the area to be registered, and the selected air conditioner is added each time the selection button 44 is pressed. Further, when an air conditioner that does not correspond to the selected air conditioner list 43 is registered due to an operation error or the like, the selected air conditioner is selected and the release button 45 is pressed, so that it is deleted from the selected air conditioner list 43. ing.

  A registration button 46 is pressed to register the set contents, a cancel button 47 is pressed to cancel, and a delete button 48 is pressed to delete all the registered areas.

  Also, if you want to view or change the settings of an already registered area, press the Open button 49 to display a registration name list dialog. Select the item you want to display and set it in the area registration screen shown in FIG. The contents are displayed.

  FIG. 5 shows a file in which the air conditioner registered in FIG. 2 is associated with the amount of power consumed by the air conditioner. The start / stop point 51 of the air conditioner is uniquely managed as a code 52, and the man code 2 and the air conditioning controller 3 store the point code 52. The power amount point 53 is also uniquely managed as a code 54, and the man code 2 and the data collection device 4 store the point code 54.

  In FIG. 5, for example, in the case of the general affairs department west air conditioner, the power consumption of the air conditioner (AC-001) is measured as its own point (ELC-001), but the general affairs department north air conditioner (AC- 003) is measured as a point (ELC-003) that is combined with the power consumption of the south air conditioning unit (AC-004) of the finance department. In this case, an arithmetic expression 55 is provided. For example, among the general affairs north / financial south air conditioner electric energy (ELC-003), two-thirds is the electric power consumption of the general affairs department north side air conditioner and one third is financial. For the power consumption of the south side air conditioner, the calculation formula 55 uses (ELC-003) x 2/3 for the general affairs department north side air conditioner and (ELC-003) x 1 for the finance side south air conditioner. / 3 is registered. The arithmetic expression 55 corresponds to the four arithmetic expressions, and four arithmetic operations between the point codes are also possible.

The file created in FIG. 5 is stored in the man machine device 2. If the general affairs department's air conditioner set in the area registration of FIG. 4 is three devices of the general affairs department west air conditioner, the general affairs department east air conditioner, and the general affairs department north side air conditioner, From 5,
(ELC-001) + (ELC-002) + (ELC-003) × 2/3
Can be calculated.

  FIG. 6 is a screen for registering a target value of power consumption for the area set in the area registration of FIG. In this screen, the target value is set on a monthly basis, but it may not be on a monthly basis. To make it easier to understand, the following contents are set as target values on a monthly basis.

  From the area name pull-down 61, select the area where the target value is to be registered. The last year actual value 62 indicates the amount of power used by the air conditioner used in the area last year, and is calculated and automatically displayed by the man-machine device 2 on a monthly basis. KWh is typically used as the unit of power consumption, but can be displayed in monetary amounts (yen).

  The target value is input to the target value input field 63 while referring to the actual value of last year. Further, it is selected whether the priority control 64 is cost priority or comfort priority. When operating at the standard comfort level 25 of the air conditioner registered in Fig. 2 and the estimated usage for January meets the target value and there is room, if the cost priority is selected, the air conditioner is at the standard comfort level. However, when comfort level priority is selected, the air conditioner is driven so as to approach the input field 26 of 100% comfort level so as not to exceed the target value. On the other hand, when the expected usage amount for January does not meet the target value even if it is operated in the input field 27 of the 0% comfort level of the air conditioner registered in FIG. 2, the comfort level priority is selected. If the air conditioner is operated at 0% comfort level, but cost priority is selected, the air conditioning temperature is set more severely than 0% comfort level so as to satisfy the target value. If the maximum (in cooling operation) or minimum (in heating operation) temperature setting of the air conditioner is exceeded, the air conditioner is stopped.

  After the above setting is completed, the registration button 65 is pressed to register the set contents, and the cancel button 66 is pressed to cancel the target value setting screen.

  FIG. 7 is a screen for inputting weather information from the next day. Since the power consumption of the air conditioner has a correlation with the weather conditions, the weather forecast data is required when calculating the expected usage of the air conditioner for one month for the area registered in FIG. .

  If there is an environment where the Internet 12 can be connected, the weather data can be downloaded from the center server 13 or the weather association to the man-machine device 2 via the Internet 12. However, if the Internet 12 cannot be used, the weather data prediction value 71 is input from the weather information setting screen shown in FIG. Although FIG. 7 shows the maximum temperature and the minimum temperature, humidity or the like may be added if necessary.

  If the weather data is not entered on the screen in FIG. 7 or if the weather forecast is about one week and the weather forecast for one month is not available, the average of past weather data is accumulated for each date. The system uses values.

  When the screen shown in FIG. 7 is to be ended, it is ended by pressing a cancel button 73.

  FIG. 8 to FIG. 10 show a processing flow for determining the optimal air conditioner operation schedule by comparing the predicted air-conditioning power consumption for one month and the value with the target value. Since the processing method is the same for both cooling and heating, it is described for cooling in this figure.

  First, in step 801 in FIG. 8, the predicted value of the air-conditioning power consumption for each hour for the standard comfort level, 100% comfort level, and 0% comfort level, date, average outside air temperature, air conditioner set temperature, Also, prediction is made from the amount of power used for air conditioning under the conditions of the past average outside air temperature and air conditioner set temperature.

  As a prediction method, multiple regression analysis, MBR (Memory-Based-Reasoning) as a data mining method, or other methods may be used.

  Further, although the average outside air temperature and the air conditioner set temperature are used as explanatory variables, other variables such as outside air humidity may be added, or the maximum temperature may be used instead of the average outside air temperature.

  Using the air conditioner power consumption predicted in step 801, a predicted value of air conditioner power consumption for one month is obtained for each of the standard comfort level, 100% comfort level, and 0% comfort level (FIG. 8). , Step 802).

  Next, the predicted value of air-conditioner power consumption for one month for each area is obtained for each of the standard comfort level, 100% comfort level, and 0% comfort level (FIG. 8, step 803) (hereinafter referred to as standard comfort level). The predicted value is a standard predicted value, the predicted value at 100% comfort is described as an upper limit, and the predicted value at 0% comfort is described as a lower limit).

  Subsequently, the standard predicted value and the lower limit value are compared with the target value of the area (FIG. 8, step 804).

(I) When standard predicted value> target value> lower limit value 1) In the time zone where the temperature difference between the standard set temperature of the air conditioner and the lower limit set temperature is 3 ° C or more, add 1 ° C to the standard set temperature and add the predicted value Recalculate. Redefine the standard set temperature as the standard set temperature. If the temperature difference is not 3 ° C. or more, the process proceeds to 3) (FIG. 8, steps 805 and 806).

  2) When the standard predicted value ≦ the target value, the air conditioning schedule obtained in 1) is determined and the process ends (FIG. 8, step 809).

  If standard predicted value> target value, return to 1), add 1 ° C. to the standard set temperature, and repeat.

  3) When the temperature difference between the standard set temperature and the lower limit set temperature of the air conditioner reaches a maximum of 2 ° C, the standard set temperature is set to the lower limit set temperature -1 ° C and the predicted value is recalculated. However, if the standard set temperature and the lower limit set temperature coincide with each other, the standard set temperature remains as it is (FIG. 8, step 810).

  4) When the standard predicted value ≦ the target value, the air conditioning schedule obtained in 3) is determined and the process ends (FIG. 8, step 812).

    When the standard predicted value> the target value, the lower limit set temperature is set as the air conditioning schedule, and the process ends (FIG. 8, step 813).

(Ii) When lower limit value> target value 1) In the case of cost priority, the lower limit set temperature is uniformly added by 1 ° C., and the predicted value is recalculated. Redefine the lower limit set temperature as the lower limit set temperature. When the lower limit set temperature exceeds the maximum set temperature that the air conditioner can control, the air conditioner is stopped. Thereafter, 1 ° C. is added until the lower limit value is equal to or lower than the target value. The finally determined set temperature becomes the air conditioning schedule temperature (FIG. 9, steps 902 to 905).

  If the lower limit value does not become the target value or less even after repeating this operation, all the air conditioners are stopped.

  2) If the comfort level is prioritized, the lower limit set temperature is set as the air conditioning schedule, and the process ends (FIG. 9, step 906).

(Iii) When target value> standard predicted value 1) When priority is given to the comfort level, the standard set temperature is uniformly lowered by 1 ° C., and the predicted value is recalculated. Redefine the standard set temperature as the standard set temperature. However, if the upper limit set temperature is exceeded, the upper limit set temperature is set. If the standard set temperature falls below the minimum set temperature that can be controlled by the air conditioner due to an error in setting the upper limit set temperature, the minimum set temperature is set. Thereafter, the target value is decreased by 1 ° C. until the target value becomes the standard predicted value or less. When the target value is equal to or less than the standard prediction value, the previously set temperature is the air conditioning schedule temperature (FIG. 10, steps 1002 to 1005).

  Note that if the target value does not fall below the standard predicted value even after repeating this operation, it will coincide with the upper limit set temperature.

  2) If cost is prioritized, the standard set temperature is set as the air conditioning schedule, and the process ends (FIG. 9, step 1006).

  FIG. 11 is an example of a graph showing a comparison between the predicted power consumption of the air conditioner for each area and the air conditioning power consumption when the air conditioning schedule operation is actually predicted. This graph can be viewed from the energy-saving system.

  According to the above-described embodiment, the air conditioner operation schedule is provided with means for inputting the standard set temperature and the upper limit value and the lower limit value for that temperature, and also predicts the power consumption when operating with the set schedule. By providing such a means, it is possible to create an optimum driving schedule that approaches the target usage while taking comfort into consideration. In addition, the energy-saving manager can set the upper and lower limits of the air conditioner and set the target value for the amount of power used, and can easily grasp the energy-saving effect. . Furthermore, the energy-saving manager can set the upper and lower limit values of the air conditioner and set the target value for the amount of power used, making it easier for the administrator to work on energy saving and making it possible to easily report ISO14001 and the like. Become.

The system block diagram of the air-conditioning energy saving control apparatus which is one Embodiment of this invention. Air conditioning energy saving control device schedule registration screen. Daily air-conditioning operation schedule. Air-conditioning energy-saving control device area registration screen. A file that associates air conditioning equipment with the amount of power consumed by the air conditioner. Target value setting screen of air conditioning energy saving control device. Weather information setting screen of air conditioning energy saving control device. Processing flow of a method for predicting the amount of power used for air conditioning and a method for determining the optimal air conditioning operation schedule. Processing flow of a method for predicting the amount of power used for air conditioning and a method for determining the optimal air conditioning operation schedule. Processing flow of a method for predicting the amount of power used for air conditioning and a method for determining the optimal air conditioning operation schedule. A graph display screen showing the prediction and performance of air-conditioning power consumption.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Building or factory 2 Man-machine device 3 Air-conditioning control controller 4, 5 Data collection device 6a, 6b, 6m Electricity meter 7a, 7b, 7k Temperature / humidity sensor 8 LAN
9 Field network 10a, 10b, 10n Air conditioner 11 Router 12 Internet 13 Center server 21 Date / month / day pull-down 22 on schedule registration screen Air conditioner pull-down 23 Season setting pull-down 24 Time setting input field 25 Standard comfort level input field 26 100% comfort (upper limit) input field 27 0% comfort (lower limit) input field 28, 46, 65, 72 Registration button 29, 47, 66, 73 Cancel button 41 Registered name input field 42 Air conditioning equipment List 43 Selected Air Conditioning Equipment List 44 Select Button 45 Cancel Button 48 Delete Button 49 Open Button 61 Area Name Pull-Down 63 Target Value Input Field

Claims (13)

Means for inputting a target power consumption that is a target value of the air conditioning power consumption of the air conditioner;
A set temperature input means for inputting a standard set temperature of the air conditioner and an allowable range for the set temperature of the air conditioner;
A power consumption prediction means for calculating a predicted power consumption of the air conditioner when it is assumed that the operation is performed at the standard set temperature within a period in which the target power consumption is set;
A power consumption comparison means for comparing the target power consumption with the predicted power consumption;
If the predicted power usage exceeds the target power usage,
Each time the first standard set temperature is calculated by adding or subtracting the first temperature to or from the standard set temperature, the system was operated at the first standard set temperature within the period for which the target power consumption was set. Calculate the first predicted power consumption of the air conditioner assuming that
The first predicted power consumption and the target power consumption are compared, and the first standard set temperature when the first predicted power consumption is lower than the target power consumption is determined by the air conditioning. Prediction calculation means for determining the set temperature of the machine,
And the first standard set temperature is within the allowable range,
The power consumption predicting means reduces the comfort level of the air conditioner while lowering the comfort level among the upper limit set temperature and the lower limit set temperature defining the allowable range for the set temperature of the air conditioner within the period in which the target power consumption is set. Calculate the second predicted power consumption that is the predicted power consumption of the air conditioner when assuming that the schedule operation is performed at the first temperature that is the set temperature that contributes to energy saving,
When the target power consumption comparing means compares the target power consumption with the second predicted power consumption, and the second predicted power consumption exceeds the target power consumption,
When the cost priority is selected in the selection means for selecting cost priority or comfort priority, the prediction calculation means calculates a second set temperature obtained by adding or subtracting a second temperature to the first set temperature. Each time, the third predicted power consumption is calculated when it is assumed that the engine has been operated at the second set temperature within the period in which the target power consumption is set, and the third predicted power consumption and Compared with the target power consumption, the second set temperature when the third predicted power consumption is less than the target power consumption is determined as the set temperature of the air conditioner ,
An air-conditioning energy-saving control device characterized in that, when comfort level priority is selected in the selection means, the first set temperature is set to the set temperature of the air conditioner .
In claim 1,
When the predicted power consumption is compared with the predicted power consumption in the power consumption comparison means, and the target power consumption exceeds the predicted power consumption,
When comfort level priority is selected in the selection means, the prediction calculation means calculates the target use every time the second standard set temperature is calculated by adding or subtracting a third temperature to the standard set temperature. The fourth predicted usage power amount is calculated when it is assumed that the second standard set temperature is operated within the period in which the power amount is set, and the fourth predicted usage amount is calculated in the used power amount comparison means. When the fourth predicted power consumption exceeds the target power consumption, the third temperature is subtracted from the second standard set temperature or the power consumption is compared with the target power consumption. The added third standard set temperature is determined as the set temperature of the air conditioner, and the third standard set temperature is within an allowable range for the set temperature of the air conditioner. .
In claim 2 ,
An air-conditioning energy-saving control device characterized in that, when the cost priority is selected by the selection means, the prediction calculation means determines the set temperature of the air conditioner to the standard set temperature .
In any one of Claims 1-3 ,
Means for setting one area by combining one or a plurality of air conditioners, means for inputting a calculation method of power consumption for the set area, and means for inputting target power consumption for the set area And comprising
The power usage amount predicting means calculates a predicted power usage amount when it is assumed that a schedule operation is performed at the standard set temperature within a period in which the target power consumption amount is set in the set area. Air conditioning energy saving control device.
In any one of Claims 1-4,
An air-conditioning energy-saving control device comprising means for setting the control schedule separately for a cooling operation and a heating operation .
In any one of Claims 1-5,
An air-conditioning energy-saving control device comprising means for inputting a set temperature and an air-conditioning stop in order to set an allowable range for the set temperature of the air-conditioner .
In any one of Claims 1-6,
Means for storing the set temperature of the air conditioner to be controlled, means for collecting and storing the hourly power consumption of the air conditioner at that time, and measuring or inputting environmental measurement values inside and outside the building and conditioning energy saving controller characterized in that it comprises a means for storing.
In any one of Claims 1-7,
An air-conditioning energy saving control device comprising means for controlling the operation of the air conditioner at the determined set temperature of the air conditioner .
In any one of Claims 1-8,
The air conditioning energy saving control device is characterized in that the prediction of the operation schedule of the air conditioner is updated daily .
In any one of Claims 1-9,
An air-conditioning energy-saving control device comprising means for acquiring weather data from the next day via the Internet .
In any one of Claims 1-10,
An air-conditioning energy-saving control device comprising means for manually inputting weather data for the next day and after .
In any one of Claims 1-11,
An air-conditioning energy-saving control device comprising means for estimating weather data from the next day on the basis of measured values measured in the past .
In any one of Claims 1-12,
An air-conditioning energy-saving control device comprising means for comparing and displaying the predicted power consumption during the period in which the target power consumption is set and the power consumption actually used during the same period .

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