JP2012133553A - Energy-saving support apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a manager to perform appropriate energy management.SOLUTION: An energy-saving support apparatus 1 includes a resource use information acquiring section 11, a target setting section 13, a reference amount acquiring section 14, a use planned amount arithmetic section 15, a storage section 16, a reduction pattern selection section 17, a recommendation pattern generation section 18 and a presentation section 19. The resource use information acquiring section 11 acquires resource use information. The target setting section 13 sets a use reduction target of resources within a unit term. The storage section 16 stores a plurality of reduction patterns beforehand. The reduction pattern selection section 17 selects a reduction pattern from among the plurality of reduction patterns in the storage section 16 in accordance with baseline consumption acquired by the reference amount acquiring section 14 and final predictive power consumption determined by the use planned amount arithmetic section 15 in such a manner that use of resources within the unit term achieves the use reduction target. The recommendation pattern generation section 18 generates a recommendation pattern by associating the reduction pattern with a time. The presentation section 19 presents the recommendation pattern.

Description

  The present invention relates to an energy saving support device that supports energy saving of resources in a predetermined management area.

  In recent years, social demands for energy saving have been improved with global warming. The current energy conservation law (official name “Act on the Rational Use of Energy”) not only improves the performance of individual equipment, but also uses, for example, BEMS (Building Energy Management System) It also requires energy savings in terms of energy. As an energy saving method in terms of management, it is known to improve the operation schedule of equipment.

  Conventionally, a system for setting an operation schedule of facility equipment is known (see, for example, Patent Document 1). The operation schedule includes the operation content of the equipment.

  In the screen where the operation schedule is displayed, when the operation schedule is changed for the purpose of energy saving, the method of visualizing the energy saving effect by color-coding the changed range enhances the manager's intuitive operation and management. It can be expected to help people improve management operations.

  By the way, in recent years when energy-saving regulations have been strengthened, it is obliged to formulate an energy-saving improvement plan and management standard of 1% per year, and knowledge of managers (including owners) about energy-saving is required. In particular, with the revision of the Energy Saving Law in 2010, regulations from building units have been strengthened to regulations on the scale of businesses, and there are increasing cases where small and medium-sized buildings are also subject to regulation. However, there are few managers who actually have knowledge about energy saving management, and there is a demand for a function that enables even non-expert managers to easily plan energy saving management.

  In response to this background, as a function to support the planning of energy saving management by non-expert managers, on the Web, such as SaaS (Software as a Service), basic information on buildings is entered and simple simulations are executed. A service is provided. Thereby, the effect with respect to an energy saving measure (For example, raising cooling temperature by 1 degreeC, lowering heating temperature by 1 degreeC, etc.) can be estimated.

JP-A-8-50501

  However, the simulation result of the above service has not been estimated based on the past usage record in the management area, so it is far from the actual situation and only serves as a guideline as a result. It is important for managers to introduce an energy-saving system and suddenly be effective. However, the energy-saving law imposes a certain energy-saving management duty of 1% on average, and grasps the current state of achievement of energy-saving. On the other hand, I hope that the effect can be adjusted without being too much and not too much for the target.

  It is very difficult for managers who are not good at energy saving know-how to observe energy fluctuations in the entire management area and identify circuits with large energy loss when it is difficult to achieve the goals. In other words, in energy management, experience and knowledge are required to find out the equipment that will be a cause of failure in individual units or circuit units (hereinafter referred to as “points”) from the achievement status of overall energy management.

  This invention is made in view of said point, and the objective of this invention is providing the energy saving assistance apparatus which can make a manager perform appropriate energy management.

  An energy saving support apparatus according to the present invention includes a resource usage information acquisition unit that acquires resource usage information related to resource usage in a predetermined management area in association with time information, and reduces the use of the resource in a predetermined unit period. A target setting unit for setting a target, a reference amount acquisition unit for acquiring information on a reference amount for the use of the resource in the unit period, and a planned use amount of the resource in the unit period using the resource use information A scheduled use amount calculation unit, a storage unit that stores in advance a plurality of reduction patterns for realizing the reduction of the use of the resource in the device provided in the management area, and the use of the resource in the unit period is the use reduction According to the reference amount and the planned use amount, at least one reduction from the plurality of reduction patterns of the storage unit so as to achieve a target. A reduction pattern selection unit that selects a pattern, a recommended pattern generation unit that generates a recommended pattern by associating a reduction pattern selected by the reduction pattern selection unit with a time to execute the reduction pattern, and the recommended pattern generation unit And a presentation unit for presenting the generated recommended pattern.

  In this energy saving support apparatus, it is preferable that the presenting unit presents all of the generated recommended patterns when the recommended pattern generating unit generates a plurality of the recommended patterns.

  In this energy saving support apparatus, it is preferable that the reduction pattern selection unit excludes a predetermined reduction pattern from the plurality of reduction patterns in the storage unit.

  In this energy saving support device, it is preferable that the presenting unit presents that the use reduction target needs to be changed when the recommended pattern generation unit does not generate the recommended pattern.

  In this energy saving support device, the resource usage information acquired by the resource usage information acquisition unit and the reference amount acquired by the reference amount acquisition unit are used to determine whether the usage reduction target is appropriate. Preferably, a target determination unit is provided, and the target setting unit resets the use reduction target when the target determination unit determines that the use reduction target is not appropriate.

  In this energy saving support device, a priority is set in advance for each of the plurality of reduction patterns stored in the storage unit, and the reduction pattern selection unit selects and selects in order from the reduction pattern having the highest priority. It is preferable to lower the priority of the reduction pattern.

  ADVANTAGE OF THE INVENTION According to this invention, by using the resource in the unit period in a management area, the recommendation pattern for achieving a use reduction target can be shown, and an administrator can perform appropriate energy management.

It is a block diagram which shows the structure of the energy saving assistance apparatus which concerns on embodiment. In the energy saving support apparatus according to the above, (a) is a diagram showing a reduction pattern table, and (b) is a diagram showing a load of each equipment in each office. It is a figure which shows the list screen of the reduction pattern displayed with the energy saving assistance apparatus which concerns on the same as the above. It is a figure which shows the time management screen displayed with the energy saving assistance apparatus which concerns on the same as the above. It is a figure which shows the characteristic screen of the power consumption displayed by the energy saving assistance apparatus which concerns on the same as the above. It is a figure which shows the list screen and time management screen of the reduction pattern displayed with the energy saving assistance apparatus which concerns on the same as the above. It is the schematic which shows the usage example of the energy saving assistance apparatus which concerns on the same as the above. It is a flowchart explaining operation | movement of the energy saving assistance apparatus which concerns on the same as the above.

  In the following embodiment, an energy saving support apparatus that supports energy saving of resources in a predetermined management area will be described.

  As shown in FIG. 1, a plurality of facility devices 2 are connected to the energy saving support device 1 according to the present embodiment. The energy saving support device 1 includes a resource usage information acquisition unit 11 that acquires resource usage information of each facility device 2 and a resource usage state determination unit 12 that evaluates the resource usage information. In addition, the energy saving support apparatus 1 includes a target setting unit 13 that sets a usage reduction target, a reference amount acquisition unit 14 that acquires information on a reference amount of resource use in a unit period, and a resource use scheduled amount in a unit period. And a scheduled use amount calculation unit 15 to be obtained. Further, the energy saving support device 1 includes a storage unit 16 that stores a plurality of reduction patterns, a reduction pattern selection unit 17 that selects a reduction pattern, a recommended pattern generation unit 18 that generates a recommended pattern, and a presentation that presents the recommended pattern. Part 19. Examples of resources include electric power, water, and gas. Hereinafter, a case where the resource is electric power will be described.

  Each facility device 2 is, for example, a lighting facility device or an air conditioning facility device, and is provided in the management area.

  The resource usage information acquisition unit 11 acquires information related to the power consumption of each facility device 2 in the management area in association with time information as resource usage information.

  The resource usage state determination unit 12 determines whether or not the power corresponding to the resource usage information acquired by the resource usage information acquisition unit 11 is used in the permitted time zone. The permitted time period refers to a time period during which use of resources is permitted in advance.

  The target setting unit 13 sets a usage reduction target of power consumption for one year. The target setting unit 13 sets, for example, 1% reduction as a usage reduction target. Note that the usage reduction target period may be a predetermined unit period and is not limited to one year.

  The reference amount acquisition unit 14 acquires information related to a reference amount of power consumption for one year (unit period). Here, the baseline consumption is used as the reference amount.

  Baseline consumption is energy consumption before energy saving measures calculated by a specified method. Baseline consumption is estimated differently depending on the purpose. For example, in the case of ESCO (Energy Service Company), ASHRAE (American Society of Heating, Refrigerating and Air) -Estimated from outside air temperature recommended by Conditioning Engineers) and building activity.

  The scheduled use amount calculation unit 15 obtains a final predicted power consumption amount for one year (unit period) using the resource use information. Specifically, the scheduled usage amount calculation unit 15 acquires resource usage information and time information from the resource usage information acquisition unit 11 and obtains a final predicted power consumption amount. The final predicted power consumption is the power consumption predicted to be used in one year (unit period) based on the actual data of the current month and past data (resource usage information). As a method for obtaining the final predicted power consumption, there are provided a method using a simulation or a method for predicting from the achievement status of the baseline consumption up to the current month or an increase / decrease in the activity amount in the future. As a method using simulation, there is a general energy simulation program, or an energy simulation program such as EnergyPlus or HASP.

  The storage unit 16 stores in advance a reduction pattern table for realizing a reduction in power usage in each facility device 2. The reduction pattern table includes a reduction pattern associated with each equipment device 2. Specifically, the storage unit 16 stores a reduction pattern table as shown in FIG. 2A for each target (area). A priority is set in advance for each of the plurality of reduction patterns stored in the storage unit 16. Moreover, the memory | storage part 16 has memorize | stored the load of each equipment 2 of each office as shown in FIG.2 (b).

  The reduction pattern selection unit 17 illustrated in FIG. 1 executes a simulation for selecting at least one reduction pattern from a plurality of reduction patterns in the storage unit 16 so that the power consumption in one year achieves the usage reduction target. Specifically, the reduction pattern selection unit 17 has a first function for obtaining a target power consumption amount, a second function for obtaining a required reduction amount, and a third function for selecting a reduction pattern. .

  In the first function, the reduction pattern selection unit 17 acquires information on the usage reduction target from the target setting unit 13, acquires information on the baseline consumption from the reference amount acquisition unit 14, and Obtain information about the final predicted power consumption. The reduction pattern selection unit 17 obtains the target power consumption using the use reduction target, the baseline consumption, and the final predicted power consumption. The reduction pattern selection unit 17 obtains, for example, [final predicted power consumption−baseline consumption × (100% −use reduction target (%)) / 100] and sets it as the target power consumption.

  In the second function, the reduction pattern selection unit 17 obtains a difference between the final predicted power consumption and the target power consumption as a necessary reduction amount.

  In the third function, the reduction pattern selection unit 17 uses the reduction pattern table in the storage unit 16 to select the reduction patterns in descending order of priority. Each time a reduction pattern is selected, the reduction pattern selection unit 17 obtains a predicted reduction amount based on the reduction pattern, and obtains a total predicted reduction amount based on the reduction patterns selected so far as a total predicted reduction amount. In the case of lighting, the predicted reduction amount is calculated by (load) × (shortening time) × (number of operating days until the end of the period) × (light reduction rate). In the case of air conditioning, the predicted reduction amount is also affected by fluctuations in the thermal load, so that the estimation accuracy can be improved by using the thermal load simulation together.

  The reduction pattern selection unit 17 continues to select a reduction pattern until the total predicted reduction amount becomes equal to or greater than the necessary reduction amount. That is, the total predicted reduction amount is accumulated in order from the predicted reduction amount of the reduction pattern having a high priority. For example, when the required reduction amount is 754 kWh, the reduction pattern selection unit 17 ends the calculation of the total prediction reduction amount when the total prediction reduction amount becomes 754 kWh or more.

  Here, the reduction pattern selection unit 17 can perform a restriction setting that excludes a predetermined reduction pattern from among a plurality of reduction patterns in the storage unit 16. For example, a device (such as a server, a FAX, or a vending machine) whose operation cannot be stopped can be removed from the management target by lowering the priority of the reduction pattern. Further, the reduction pattern selection unit 17 can also lower the priority of the previously selected reduction pattern. Thereby, it can avoid concentrating the point used as a change of a driving schedule.

  The recommended pattern generation unit 18 generates a recommended pattern by associating the reduction pattern selected by the reduction pattern selection unit 17 with the time to execute the reduction pattern. The recommended pattern is generated in consideration of the room attribute, the operation schedule of the equipment 2 and the like (for example, in the case of office lighting, it is turned off during the day).

  The presentation unit 19 displays a simulation result screen 5 as shown in FIG. On the simulation result screen 5, a reduction pattern list 51, a necessary reduction amount 52, a total prediction reduction amount (final prediction value) 53, and a final prediction increase / decrease rate 54 are displayed.

  When a reduction pattern is selected through the simulation result screen 5 and the simulation execution button 56 is pressed, the reduction pattern selection unit 17 executes a simulation for the selected reduction pattern.

  Further, when the detail button 55 of the reduction pattern list 51 is pressed, the presentation unit 19 displays the time management screen 4 as illustrated in FIG. 4 on the display device 3. The time management screen 4 in FIG. 4 shows a power usage state 41 of a certain equipment circuit (target point) in a two-dimensional time chart of day of the week and time. The use within a predetermined allowable time and the use outside the allowable time are distinguished and displayed. As a result, the manager can visually find out usage outside the allowable time, so that the energy loss can be easily found, and measures such as a change in the operation schedule can be instantly understood. Thereby, energy saving driving can be supported.

  A portion 42 surrounded by a square in the time management screen 4 indicates a recommended pattern generated by the recommended pattern generation unit 18 (here, a pattern for shortening the lighting equipment device for 30 minutes). That is, the presentation unit 19 displays the recommended pattern generated by the recommended pattern generation unit 18 on the display device 3. The administrator determines whether or not the recommended pattern is appropriate. If the administrator determines that the recommended pattern is appropriate, the operation schedule is changed. Thereby, the manager can realize energy saving management even if he / she does not have special expertise.

  On the time management screen 4, a current operation schedule state 43 and a new operation schedule setting unit 44 are displayed below the power usage state 41. Thereby, the administrator can set an operation schedule while confirming the power usage state 41. It is also possible to newly set the dimming of the lighting equipment and the set temperature of the air conditioning equipment.

  Further, on the time management screen 4, when the current operation schedule is changed to a new operation schedule, an increase / decrease amount 45 of the power consumption affected by the change is displayed. For example, when the setting is changed by shortening the operating time of the lighting equipment by 1 hour or by increasing the set temperature of the air-conditioning equipment by 1 ° C from the afternoon, the energy saving effect of the setting change can be confirmed as a guide. it can. In addition, the energy saving assistance apparatus 1 of this embodiment has a function which calculates | requires the increase / decrease amount 45 when changing from the present driving schedule to a new driving schedule by simulation.

  Further, the presentation unit 19 can display a screen 6 as shown in FIG. The screen 6 in FIG. 5 includes a characteristic graph 61 such as baseline consumption, a current power consumption (currently measured value) 62, a final predicted power consumption (final predicted value) 63, and a year-on-year change ratio 64. And the final predicted increase / decrease ratio 65 is displayed.

  Incidentally, the recommended pattern generator 18 shown in FIG. 1 can generate a plurality of recommended patterns. A detail button 55 is provided on the simulation result screen 5 (see FIG. 3). When the detail button 55 is clicked, the presentation unit 19 causes the display device 3 to display all of the recommended patterns generated by the recommended pattern generation unit 18.

  When there are two recommended patterns (for example, in the case of office lighting, there are patterns that turn off for 30 minutes during the day and patterns that advance the end time by 30 minutes), the details button 55 is clicked by the administrator. Then, as shown in FIG. 6, two time management screens 4 are displayed simultaneously. The administrator can adopt an operation schedule suitable for the site while comparing the recommended patterns of both time management screens 4.

  On the other hand, the recommended pattern generation unit 18 may not generate a recommended pattern. In this case, the presentation unit 19 causes the display device 3 to display that the usage reduction target needs to be changed. In other words, if the total predicted reduction amount is smaller than the required reduction amount even though the reduction pattern for all points to be managed is applied, the current reduction target is too high and inappropriate, making it difficult to achieve the target Therefore, a screen that prompts the user to change the usage reduction target is displayed on the display device 3.

  The energy saving support device 1 further includes a target determination unit 131 that determines whether or not the use reduction target is appropriate.

  The target determination unit 131 uses the baseline consumption acquired by the reference amount acquisition unit 14 and the final predicted power consumption calculated by the scheduled usage amount calculation unit 15 to determine whether the usage reduction target is appropriate. judge. For example, when the difference between the baseline consumption acquired by the acquisition reference amount acquisition unit 14 and the final predicted power consumption calculated by the scheduled use amount calculation unit 15 is larger than the amount corresponding to the use reduction target, the target determination unit 131 determines that the usage reduction target is not appropriate.

  If the target determination unit 131 determines that the usage reduction target is not appropriate, the target setting unit 13 resets the usage reduction target.

  Further, when the determination process is performed only with the priority of the reduction pattern, the determination process is performed in the order of the ID numbers of the memories in the group having the same priority value. Since such determination processing does not take into account the spatial connection, there are cases where the area to be energy-saving is spatially dispersed. For example, a 1st floor toilet and a 4th floor reception room. Energy conservation measures are difficult in terms of actual management unless the targets are grouped.

  Therefore, in the present embodiment, grouping is performed according to usage such as a conference room and a lecture room, or according to areas such as the first floor and the second floor, and processing based on attribute information makes it possible to actually manage the output simulation results. It can be made easier to use. In the case of air conditioning in a conference room, there are three types of reduction patterns that can be selected. A reduction pattern for changing the cooling temperature is selected by default. If the reduction pattern is determined from the attribute information of the target point, the total predicted reduction amount can be estimated by simulation.

  Next, operation | movement of the energy saving assistance apparatus 1 which concerns on this embodiment is demonstrated using FIG. Specifically, the case where the energy saving support apparatus 1 is used for the building controller 71 will be described. Here, it is assumed that most of the electric power in the building is consumed by the lighting equipment 21 and the air conditioning equipment 22. In order to manage the power consumption, a watt hour meter is attached to the power receiving point. Data regarding the power consumption of the lighting equipment 21 is transmitted to the building controller 71 by the lighting controller 74. Data regarding power consumption of the air conditioning equipment 22 is transmitted to the building controller 71 by the air conditioning controller 75.

  The building controller 71 can change the operation schedule and dimming schedule of the lighting equipment 21 and change the operation schedule and temperature schedule of the air conditioning equipment 22.

  The building controller 71 has a Web function. By connecting the building controller 71 and the management PC 72 via the network 73, the administrator can freely browse the time management screen 4 (see FIG. 4) and the like through the management PC 72 and change the driving schedule. can do.

  Next, the operation of the energy saving support device 1 included in the building controller 71 will be described with reference to FIG. FIG. 8 shows a flowchart for automatically selecting a reduction pattern for reducing energy consumption.

  First, the scheduled use amount calculation unit 15 reads the resource usage information to obtain the final predicted power consumption, and the reduction pattern selection unit 17 reads information regarding the final predicted power consumption and the baseline consumption (S1 in FIG. 8). Thereafter, the reduction pattern selection unit 17 calculates a necessary reduction amount (S2). The reduction pattern selection unit 17 that has calculated the necessary reduction amount selects a reduction pattern (S3), and calculates a predicted reduction amount based on the reduction pattern (S4). Thereafter, the reduction pattern selection unit 17 calculates a total predicted reduction amount that is the sum of the predicted reduction amounts calculated so far (S5), and determines whether or not the total predicted reduction amount is equal to or greater than the required reduction amount (S5). S6). If the total predicted reduction amount is less than the required reduction amount, the process returns to step S3, and steps S3 to S6 are executed for the reduction pattern with one lower priority. On the other hand, if the total predicted reduction amount is greater than or equal to the required reduction amount in step S6, the recommended pattern generation unit 18 generates a recommended pattern by associating the reduction pattern with the time to execute the reduction pattern, and the presentation unit 19 recommends it. The pattern and the total predicted reduction amount are displayed on the display device 3 (S7).

  As described above, according to the energy saving support device 1 of the present embodiment, appropriate energy management is performed for the administrator by presenting a recommended pattern for achieving the usage reduction target for the use of resources in the unit period in the management area. Can be made.

  Further, according to the energy saving support device 1 of the present embodiment, by presenting all the recommended patterns generated by the recommended pattern generation unit 18, the administrator can select an appropriate recommended pattern for the management area.

  Furthermore, according to the energy saving support device 1 of the present embodiment, it is possible to consider, for example, the equipment 2 that cannot absolutely stop its operation.

  Moreover, according to the energy saving support apparatus 1 of this embodiment, since it can be urged to set an achievable energy saving schedule, it is possible to give the manager motivation for resource saving as much as possible. .

  Furthermore, according to the energy saving support device 1 of the present embodiment, target setting that cannot be achieved can be avoided in advance.

  Moreover, according to the energy saving assistance apparatus 1 of this embodiment, a priority can be given for every reduction pattern.

  Furthermore, according to the energy saving support device 1 of the present embodiment, since it is unlikely that the equipment 2 for which the reduction pattern has been selected can reduce the use of resources in the next round, it is selected last time when the recommended pattern is generated. By reducing the priority of the reduction pattern, it is possible to eliminate processing waste.

  The energy consumption display method includes power consumption, crude oil equivalent consumption, CO2 emission, and the like.

  In addition to the lighting equipment 21 or the air conditioning equipment 22, the equipment 2 includes, for example, an electric equipment connected to an elevator equipment or an outlet.

DESCRIPTION OF SYMBOLS 1 Energy saving assistance apparatus 11 Resource use information acquisition part 13 Target setting part 131 Target determination part 14 Reference | standard amount acquisition part 15 Planned use amount calculation part 16 Storage | storage part 17 Reduction pattern selection part 18 Recommended pattern generation part 19 Presentation part

Claims (6)

A resource usage information acquisition unit for acquiring resource usage information related to resource usage in a predetermined management area in association with time information;
A target setting unit for setting a resource usage reduction target in a predetermined unit period;
A reference amount acquisition unit for acquiring information related to a reference amount of use of the resource in the unit period;
A planned use amount calculation unit for obtaining a planned use amount of the resource in the unit period using the resource use information;
A storage unit that stores in advance a plurality of reduction patterns for realizing reduction in use of the resource in the device provided in the management area;
Reduction pattern selection for selecting at least one reduction pattern from the plurality of reduction patterns of the storage unit according to the reference amount and the scheduled use amount so that the use of the resource in the unit period achieves the use reduction target And
A recommended pattern generation unit that generates a recommended pattern by associating a reduction pattern selected by the reduction pattern selection unit with a time to execute the reduction pattern;
An energy saving support device comprising: a presentation unit that presents the recommended pattern generated by the recommended pattern generation unit.   The energy saving support apparatus according to claim 1, wherein when the plurality of recommended patterns are generated by the recommended pattern generating unit, the presenting unit presents all of the generated recommended patterns.   The energy saving support apparatus according to claim 1, wherein the reduction pattern selection unit excludes a predetermined reduction pattern from the plurality of reduction patterns in the storage unit.   The said presentation part presents that the change of the said use reduction target is required when the said recommendation pattern is not produced | generated by the said recommendation pattern production | generation part, The any one of Claims 1-3 characterized by the above-mentioned. Energy-saving support device according to item. A target determination unit that determines whether or not the use reduction target is appropriate using the resource usage information acquired by the resource usage information acquisition unit and the reference amount acquired by the reference amount acquisition unit;
The said target setting part resets the said use reduction target, when the said target determination part determines with the said use reduction target not being appropriate. The any one of Claims 1-4 characterized by the above-mentioned. Energy saving support device. A priority is set in advance for each of the plurality of reduction patterns stored in the storage unit,
The energy saving support apparatus according to any one of claims 1 to 5, wherein the reduction pattern selection unit sequentially selects the reduction patterns with the highest priority and lowers the priority of the selected reduction patterns.

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