JP2018205153A - Visualization device, visualization method and computer program - Google Patents

Abstract

To provide a visualization device capable of visualizing a state of charge of a storage battery when the storage battery is utilized as a load of a generator.SOLUTION: There is provided the visualization device for visualizing a state of charge of a storage battery utilizable as a load of a generator. The visualization device comprises: a remaining-amount-of-charge acquiring part acquiring the remaining-amount-of-charge of the storage battery; a setting value acquisition part acquiring a usable upper limit residual amount of the storage battery; a calculation part calculating the chargeable time spent up to the upper limit residual amount based on the remaining-amount-of-charge of the storage battery and the upper limit residual amount of the storage battery; and an output part outputting an image showing the chargeable time calculated by the calculation part for the purpose of display of the image.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a visualization device, a visualization method, and a computer program for visualizing the state of charge of a storage battery.

  While the introduction of a distributed power source such as a generator or a storage battery to consumers is progressing, the storage battery is used as a load on the generator. That is, the storage battery is used to temporarily store the electric power generated by the generator. Moreover, the electric power stored in the storage battery is consumed by the load device of the consumer. For example, in order to match the power supplied by the distributed power supply with the demand power of the customer, the surplus of the generated power of the generator is stored in the storage battery, or the power that is insufficient with the generated power of the generator is stored in the storage battery. Or discharge.

  In order for the user to perform such charge / discharge control of the storage battery, it is important to display the charge state of the storage battery in an easy-to-understand manner to the user.

  As a method for displaying the state of charge of a storage battery, it is known to display the remaining charge as a percentage (see, for example, Patent Document 1). It is also known to display the remaining operating time of the storage battery load device based on the remaining charge (see, for example, Patent Document 2). Furthermore, it is known to display the number of films that can be photographed by a storage battery based on the remaining charge (see, for example, Patent Document 3).

Utility Model Registration No. 3152832 Japanese Utility Model Publication No. 3-60088 Japanese Utility Model Publication No. 4-130927

  In any conventional display method of the state of charge, display assuming the case where the power stored in the storage battery is discharged to the load device is performed, but the case where the storage battery is charged with power is not assumed. For this reason, it is difficult to visualize the state of charge when the storage battery is used as a load on the generator.

  The present invention has been made in view of such circumstances, and provides a visualization device, a visualization method, and a computer program that can visualize the state of charge of a storage battery when the storage battery is used as a load on a generator. For the purpose.

  (1) In order to achieve the above object, a visualization device according to an embodiment of the present invention is a visualization device that visualizes a charged state of a storage battery that can be used as a load of a generator, and the remaining charge of the storage battery Based on a remaining charge amount acquisition unit that acquires the upper limit remaining amount of the storage battery that can be used, a remaining charge amount of the storage battery, and an upper limit remaining amount of the storage battery. A calculation unit that calculates a chargeable time up to an amount, and an output unit that outputs an image indicating the chargeable time calculated by the calculation unit for displaying the image.

  (8) A visualization method according to another embodiment of the present invention is a visualization method for visualizing a state of charge of a storage battery that can be used as a load of a generator, and a step of acquiring a remaining charge amount of the storage battery and using the storage battery Obtaining a possible upper limit remaining amount of the storage battery; calculating a chargeable time to the upper limit remaining amount based on a remaining charge amount of the storage battery and an upper limit remaining amount of the storage battery; Outputting an image indicating the remaining chargeable time for display of the image.

  (9) A computer program according to another embodiment of the present invention is a computer program for causing a computer to function as a visualization device that visualizes a charged state of a storage battery that can be used as a load of a generator. A remaining charge acquisition unit for acquiring the remaining charge of the storage battery, a set value acquisition unit for acquiring an upper limit remaining amount of the usable storage battery, a remaining charge of the storage battery, and an upper limit remaining amount of the storage battery The calculation unit that calculates the chargeable time up to the upper limit remaining amount and an image indicating the chargeable time calculated by the calculation unit are functioned as an output unit that outputs the image for display.

  Note that the present invention can be realized as a semiconductor integrated circuit that realizes part or all of the visualization device, or as a power system including the visualization device.

  According to the present invention, when a storage battery is used as a load on a generator, the state of charge of the storage battery can be visualized.

It is a block diagram which shows the whole structure of the electric power system which concerns on Embodiment 1 of this invention. It is a figure which shows an example of the image which the output part which concerns on Embodiment 1 of this invention produces, and is displayed on a display apparatus. It is a flowchart which shows an example of the process sequence of the process which the visualization apparatus which concerns on Embodiment 1 of this invention performs. It is a figure which shows an example of the image which the output part which concerns on Embodiment 2 of this invention produces, and is displayed on a display apparatus. It is a flowchart which shows an example of the process sequence of the process which the visualization apparatus which concerns on Embodiment 2 of this invention performs. It is a figure which shows an example of the image which the output part which concerns on Embodiment 3 of this invention produces, and is displayed on a display apparatus. It is a flowchart which shows an example of the process sequence of the process which the visualization apparatus which concerns on Embodiment 3 of this invention performs. It is a figure which shows an example of the image which the output part which concerns on the modification of Embodiment 3 of this invention produces, and is displayed on a display apparatus.

[Outline of Embodiment of the Present Invention]
First, the outline of the embodiment of the present invention will be listed and described.
(1) A visualization device according to an embodiment of the present invention is a visualization device that visualizes a charge state of a storage battery that can be used as a load of a generator, and a remaining charge acquisition unit that acquires a remaining charge amount of the storage battery. And a set value acquisition unit that acquires an upper limit remaining amount of the usable storage battery, a remaining charge amount of the storage battery, and an upper limit remaining amount of the storage battery, and calculates a chargeable time to the upper limit remaining amount. And an output unit that outputs an image indicating the chargeable time calculated by the calculation unit for displaying the image.

  According to this configuration, the chargeable time can be calculated from the remaining charge amount of the storage battery and the upper limit remaining amount of the storage battery, and an image showing the chargeable time can be output. Thereby, an image showing the chargeable time can be displayed on a display device connected to the visualization device, or an image showing the chargeable time can be displayed on a computer or the like connected to the visualization device via a communication network. it can. For this reason, when using a storage battery as a load of a generator, the state of charge of the storage battery can be visualized. Thereby, the user can grasp | ascertain easily the chargeable time of a storage battery, and can control charge of a storage battery appropriately. In particular, since an image showing the chargeable time until the upper limit remaining capacity of the storage battery can be displayed, the user can control and operate the storage battery so that the remaining charge does not exceed the upper limit remaining capacity. Thereby, the life of the storage battery can be extended, or the stability of the power system using the storage battery can be maintained.

  (2) Preferably, the set value acquisition unit further acquires a rated output of the storage battery, and the calculation unit includes a remaining charge amount of the storage battery, an upper limit remaining amount of the storage battery, and a rated output of the storage battery. Based on the above, a chargeable time to the upper limit remaining charge when the storage battery is charged at the rated output is calculated.

  According to this configuration, the chargeable time up to the upper limit remaining charge when charging with rated power is calculated. For this reason, it is ensured that the remaining charge amount does not exceed the upper limit remaining amount until the chargeable time elapses after the charging of the storage battery is started. Therefore, the user does not need to check the remaining charge of the storage battery since there is no concern that the remaining charge exceeds the upper limit remaining until the chargeable time elapses after the start of charging. Thereby, a user's psychological burden and labor can be reduced.

  (3) More preferably, the set value acquisition unit further acquires a lower limit remaining amount of the storage battery, and the calculation unit further includes a current remaining charge amount of the storage battery, a lower limit remaining amount of the storage battery, and Based on the rated output of the storage battery, the dischargeable time from the storage battery to the lower limit remaining amount when discharged at the rated output is calculated, and the output unit calculates the dischargeable time calculated by the calculation unit. Is output for displaying the image.

  According to this configuration, it is possible to calculate the dischargeable time up to the lower limit remaining amount when discharging with rated power, and to display an image showing the dischargeable time. It is ensured that the remaining charge amount does not fall below the lower limit remaining amount until the dischargeable time elapses after the storage battery starts discharging. Therefore, the user does not need to check the remaining charge of the storage battery since there is no concern that the remaining charge is less than the lower limit remaining until the dischargeable time elapses after the start of discharge. Thereby, a user's psychological burden and labor can be reduced. Moreover, since the image which shows the dischargeable time to the minimum remaining amount of a storage battery can be displayed, the user can control and operate a storage battery so that a charge remaining amount may not fall below a minimum remaining amount. Thereby, the life of the storage battery can be extended, or the stability of the power system using the storage battery can be maintained.

  (4) Moreover, the set value acquisition unit further acquires power information of a target load to which the storage battery supplies power at the time of a power failure, and the calculation unit further includes a remaining charge amount of the storage battery and the target Based on the power of the load, the image calculates the time during which the storage battery can supply power to the target load during a power failure, and the output unit further shows the time during which the storage battery can supply power to the target load during a power failure May be output for display of the image.

  According to this configuration, it is possible to display the time during which power can be supplied to the target load during a power failure. Thereby, the user can know the time which can utilize target load at the time of a power failure.

  (5) Moreover, the set value acquisition unit further acquires information on the power of a target load to which the storage battery supplies power at the time of a power failure, and time for maintaining power supply to the target load at the time of a power failure, The calculation unit further calculates a remaining charge amount of the storage battery required at the time of power failure based on the power of the target load and the time for maintaining the power supply, and the output unit is configured to store the storage battery required at the time of power failure. The image further indicating the remaining charge amount may be output for display of the image.

  According to this configuration, it is possible to display the remaining amount of charge of the storage battery that is required to supply power only during the time for maintaining the power supply to the target load during a power failure. Thereby, the user can control and operate a storage battery so that it may not fall below the said charge remaining amount. Therefore, at the time of a power failure, it is possible to supply power from the storage battery to the target load only for the time during which power supply is maintained.

  (6) In addition, the output unit outputs the image indicating the remaining charge amount of the storage battery necessary at the time of a power failure in a size corresponding to the time for maintaining the power supply for displaying the image. Also good.

  According to this configuration, it is possible to display the remaining amount of charge necessary at the time of a power failure in a size corresponding to the time for maintaining the power supply. For this reason, the user can know intuitively the size of the time which can supply electric power at the time of a power failure.

  (7) The output unit may output the image showing a plurality of display target items in different modes for displaying the image.

  According to this configuration, a plurality of display target items can be displayed in different modes. For this reason, the user can easily recognize the difference between the display target items.

  (8) A visualization method according to another embodiment of the present invention is a visualization method for visualizing a charge state of a storage battery that can be used as a load of a generator, and a step of acquiring a remaining charge amount of the storage battery and using the storage battery Obtaining a possible upper limit remaining amount of the storage battery; calculating a chargeable time to the upper limit remaining amount based on a remaining charge amount of the storage battery and an upper limit remaining amount of the storage battery; Outputting an image indicating the remaining chargeable time for display of the image.

  This configuration includes steps corresponding to the processing unit provided in the above-described visualization apparatus. For this reason, the effect | action and effect similar to the above-mentioned visualization apparatus can be show | played.

  (9) A computer program according to another embodiment of the present invention is a computer program for causing a computer to function as a visualization device that visualizes a charged state of a storage battery that can be used as a load of a generator. A remaining charge acquisition unit for acquiring the remaining charge of the storage battery, a set value acquisition unit for acquiring an upper limit remaining amount of the usable storage battery, a remaining charge of the storage battery, and an upper limit remaining amount of the storage battery The calculation unit that calculates the chargeable time up to the upper limit remaining amount and an image indicating the chargeable time calculated by the calculation unit are functioned as an output unit that outputs the image for display.

  According to this configuration, the computer can function as the visualization device described above. For this reason, the effect | action and effect similar to the above-mentioned visualization apparatus can be show | played.

[Details of the embodiment of the present invention]
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Each of the embodiments described below shows a preferred specific example of the present invention. Numerical values, shapes, components, arrangement positions and connection forms of components, steps, order of steps, and the like shown in the following embodiments are merely examples, and are not intended to limit the present invention. The invention is specified by the claims. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims indicating the highest concept of the present invention are not necessarily required to achieve the object of the present invention. It will be described as constituting a preferred form.

  Moreover, the same code | symbol is attached | subjected to the same component. Since their functions and names are also the same, their description will be omitted as appropriate.

(Embodiment 1)
[Entire configuration of power system]
FIG. 1 is a block diagram showing the overall configuration of the power system according to Embodiment 1 of the present invention.

  The power system 1 according to the present embodiment includes, for example, a power facility 30 installed in a factory, and a visualization device 10 that visualizes the remaining charge of the storage battery 50 included in the power facility 30. In other words, the power system 1 includes a distribution network composed of the AC distribution lines 80 arranged in the factory, and the internal combustion power generator 40, the storage battery 50, and the solar power generation as the power equipment 30 respectively connected to the AC distribution lines 80. Machine 60 and load device 70, and visualization device 10 connected to storage battery 50 via communication network 22.

  The user controls the internal combustion power generator 40 and the storage battery 50 in order to satisfy the power demand by the load device 70. For example, the user performs control for causing the internal combustion power generator 40 to generate electric power consumed by the load device 70 or discharging it from the storage battery 50. Moreover, control for charging the storage battery 50 with surplus power from the internal combustion power generator 40 and the solar power generator 60 is performed. The power system 1 can be connected to the power system 90, and insufficient power in the power system 1 can be acquired from the power system 90.

  The visualization device 10 receives information on the remaining charge from the storage battery 50 via the communication network 22 and creates an image that visualizes the state of charge of the storage battery 50. The visualization device 10 displays the created image on the screen of the display device 20 by outputting it to the display device 20 connected to the visualization device 10. The visualization device 10 may display the created image on a screen of a display device connected to the other computer by transmitting the image to the other computer via the communication network 22.

  The communication network 22 is a LAN (Local Area Network), a WAN (Wide Area Network), the Internet, or the like.

  The power system 1 may include a power generation device that converts energy into electric energy by chemical change, such as a fuel cell, instead of the internal combustion power generator 40 or together with the internal combustion power generator 40.

  The storage battery 50 includes secondary batteries such as a redox flow (RF) battery, a lithium ion battery, a molten salt battery, and a lead storage battery. The storage battery 50 is connected to the AC distribution line 80 via a bidirectional DC (direct current) / AC (alternating current) converter.

  The solar power generator 60 includes a solar cell, and converts sunlight into electric power using the solar cell. The solar power generator 60 is connected to the AC distribution line 80 via a unidirectional DC / AC converter. In addition to the solar power generator 60, for example, a power generation device that generates power using renewable energy such as wind power, wave power, tidal power, geothermal heat, and biomass may be included.

  The load device 70 includes, for example, a non-adjustment type load device such as a production machine in which power adjustment is impossible or practical but adjustment is not allowed. The load device 70 may include an adjustable load device capable of adjusting power consumption, such as lighting and an air conditioner. The load device 70 is connected to the AC distribution line 80 via a device that can control and measure power information, such as a smart tap or a smart distribution board.

[Configuration of Visualization Device 10]
With reference to FIG. 1, the structure of the visualization apparatus 10 is demonstrated.
The visualization device 10 includes a communication I / F (interface) unit 11, a remaining charge acquisition unit 12, a set value acquisition unit 13, a calculation unit 14, and an output unit 15.

  The communication I / F unit 11 is an interface for communicating with the storage battery 50 via the communication network 22.

  The remaining charge amount acquisition unit 12 acquires the remaining charge amount of the storage battery 50 from the storage battery 50 via the communication I / F unit 11 and the communication network 22. The remaining charge amount may be the amount of power [kWh] charged in the storage battery 50, or the SOC (State of charge) [%] of the storage battery 50.

  The set value acquisition unit 13 acquires information such as the rated capacity [kWh], the rated output [kW], and the usable upper limit remaining amount and lower limit remaining amount of the storage battery 50. The upper limit remaining amount and the lower limit remaining amount that can be used are also referred to as a usable upper limit and a usable lower limit, respectively. The usable upper limit and the usable lower limit may be the electric energy [kWh] of the storage battery 50 or the SOC (State of charge) [%] of the storage battery 50. The set value acquisition unit 13 may acquire such information from an input device such as a keyboard. For example, the user operates the keyboard to input such information, and the set value acquisition unit 13 acquires the input information. Moreover, these information is memorize | stored in advance in the memory | storage device (for example, HDD (Hard Disk Drive)) of the visualization apparatus 10, The setting value acquisition part 13 is acquired by reading these information from a memory | storage device. May be.

  The calculation unit 14 calculates a value indicating the state of charge of the storage battery 50 based on the remaining charge of the storage battery 50 acquired by the remaining charge acquisition unit 12 and various information acquired by the set value acquisition unit 13. For example, the calculation unit 14 calculates the dischargeable time and the chargeable time at the rated output from the storage battery 50 according to the following formulas 1 and 2.

  The output unit 15 creates an image indicating a value indicating the state of charge of the storage battery 50 calculated by the calculation unit 14, and outputs the created image to the display device 20, thereby causing the display device 20 to display the image. Note that the output unit 15 may display the created image on a screen of a display device connected to the other computer by transmitting the created image to the other computer via the communication network 22.

  FIG. 2 is a diagram illustrating an example of an image generated by the output unit 15 according to Embodiment 1 of the present invention and displayed on the display device 20.

  In the image, a breakdown of the capacity of the storage battery 50 is shown. That is, in the image, the region 100 indicating the rated capacity of the storage battery 50 and the regions 101 to 104 constituting the region 100 are shown. Regions 101-104 are each shown in a different manner (eg, different colors or patterns).

  A region 101 indicates a capacity that exceeds the usable upper limit of the storage battery 50. For example, when the usable upper limit is set to 90%, the area of the region 101 is determined to be 10% of the area of the region 100.

  A region 104 indicates a capacity that is lower than the lower limit of usable capacity of the storage battery 50. For example, when the usable lower limit is set to 10%, the area of the region 104 is determined to be 10% of the area of the region 100.

  A region obtained by combining the region 103 and the region 104 indicates the remaining charge (SOC) of the storage battery 50. For example, when the SOC of the storage battery 50 is 45%, the area of the region combining the region 103 and the region 104 is determined to be 45% of the area of the region 100. When the area 104 is determined to be 10% of the area 100 as described above, the area 103 is determined to be 35% of the area 100 area. An area 103 indicates a remaining charge level that can be discharged to the lower limit of usable capacity.

  A region obtained by combining the region 101 and the region 102 indicates the free capacity of the storage battery 50. For example, when the SOC of the storage battery 50 is 45%, the area of the region combining the region 101 and the region 102 is determined to be 55% of the area of the region 100. When the area 101 is determined to be 10% of the area 100 as described above, the area 102 is determined to be 45% of the area 100 area. The area | region 102 shows the capacity | capacitance of the storage battery 50 which can be charged to a usable upper limit.

  In addition, the image output by the output unit 15 indicates the remaining dischargeable time (for example, 1 h50 m) when the storage battery 50 is discharged to the usable lower limit at the rated output. The remaining dischargeable time is obtained by converting the unit of dischargeable time [s] calculated by Equation 1.

  Further, the image output by the output unit 15 indicates the remaining chargeable time (for example, 2h) when the storage battery 50 is charged up to the usable upper limit at the rated output. The remaining chargeable time is obtained by converting the unit of chargeable time [s] calculated by Equation 2.

[Processing Flow of Visualization Device 10]
FIG. 3 is a flowchart showing an example of a processing procedure of processing executed by the visualization apparatus 10 according to Embodiment 1 of the present invention.

  The set value acquisition unit 13 acquires the rated capacity [kWh], the rated output [kW], the usable upper limit [%], and the usable lower limit [%] of the storage battery 50 (S11).

  The remaining charge acquisition unit 12 acquires the SOC [%] of the storage battery 50 as the remaining charge of the storage battery 50 from the storage battery 50 (S12).

  The calculation unit 14 calculates a dischargeable time and a chargeable time according to the above-described Equations 1 and 2, respectively (S13).

  The output part 15 produces the image which shows the charge condition of the storage battery 50 as shown in FIG. 2, and displays the said image on the display apparatus 20 by outputting to the display apparatus 20 (S14).

  Note that the processing procedure shown in FIG. 3 is periodically executed. Thereby, the charge state of the storage battery 50 is periodically updated, and the latest charge state of the storage battery 50 is displayed on the display device 20.

[Effects of First Embodiment, etc.]
As described above, according to the first embodiment of the present invention, it is possible to display an image indicating the chargeable time until the upper limit of the usable capacity of the storage battery 50. For this reason, when using the storage battery 50 as a load of a generator, the charge state of the storage battery 50 can be visualized. Thereby, the user can grasp | ascertain easily the chargeable time of the storage battery 50, and can control charge of the storage battery 50 appropriately. In particular, since an image indicating the chargeable time up to the upper limit of usable capacity of the storage battery 50 can be displayed, the user can control and operate the storage battery 50 so that the remaining charge does not exceed the usable upper limit. . Thereby, the life of the storage battery 50 can be extended, or the stability of the power system 1 using the storage battery 50 can be maintained.

  Note that the calculation unit 14 calculates the chargeable time up to the usable upper limit when charging with rated power. For this reason, it is ensured that the remaining charge does not exceed the usable upper limit until the chargeable time elapses after charging of the storage battery 50 starts. Therefore, the user does not need to check the remaining charge of the storage battery 50 since there is no concern that the remaining charge exceeds the usable upper limit after the chargeable time elapses after the start of charging. Thereby, a user's psychological burden and labor can be reduced.

  It is also possible to display the dischargeable time up to the usable lower limit when discharging at rated power. It is ensured that the remaining charge does not fall below the lower limit of usable capacity after the discharge of the storage battery 50 starts until the dischargeable time elapses. Therefore, the user does not need to check the remaining charge of the storage battery 50 since there is no concern that the remaining charge is below the lower limit of usable capacity until the dischargeable time elapses after the discharge is started. Thereby, a user's psychological burden and labor can be reduced. Moreover, since the image which shows the dischargeable time to the useable minimum of the storage battery 50 can be displayed, the user can control and operate the storage battery 50 so that the charge remaining amount does not fall below the useable minimum. . Thereby, the life of the storage battery 50 can be extended, or the stability of the power system 1 using the storage battery 50 can be maintained.

  In addition, a plurality of display target items (areas 101 to 104) are displayed in different modes. For this reason, the user can easily recognize the difference between the display target items.

(Embodiment 2)
In the second embodiment, in addition to the display in the first embodiment, a display in consideration of a power failure is performed.
The configurations of the power system 1 and the visualization device 10 are the same as those shown in FIG.
However, each processing unit of the visualization device 10 further executes the following processing.

  The set value acquisition unit 13 acquires information on the power [kW] of the target load to which the storage battery 50 supplies power during a power failure. For example, the target load is a load device that needs to be operated at the minimum in the event of a power failure, and a lighting fixture or the like corresponds to this. The set value acquisition unit 13 acquires information on the power of the target load from an input device or a storage device, as in the first embodiment.

  The calculation unit 14 calculates the time during which the storage battery 50 can supply power to the target load during a power failure based on the remaining charge of the storage battery 50 and the power of the target load. For example, the calculation unit 14 calculates the time according to the following Equation 3. Here, even when a power failure occurs, the lower limit of usable power is stored in the storage battery 50, and the power supply available time is calculated. However, if the SOC of the storage battery 50 is allowed to be 0% during a power failure, The power supply available time may be calculated by setting the lower limit for use as 0%.

  The output unit 15 creates an image indicating a time during which the storage battery 50 can supply power to the target load at the time of a power failure, and outputs the created image to the display device 20, thereby causing the display device 20 to display the image.

  FIG. 4 is a diagram illustrating an example of an image generated by the output unit 15 according to Embodiment 2 of the present invention and displayed on the display device 20.

  The image shows a breakdown of the capacity of the storage battery 50 as in the image shown in FIG. In addition, in the image shown in FIG. 4, time (for example, 30 h) in which power can be supplied from the storage battery 50 at the time of a power failure is shown in the region 105. This time is obtained by converting the unit of the power supply available time [s] calculated by Equation 3.

  FIG. 5 is a flowchart showing an example of a processing procedure of processing executed by the visualization apparatus 10 according to Embodiment 2 of the present invention.

  The visualization device 10 executes the processes of steps S11 to S13. These processes are the same as those shown in FIG.

  The set value acquisition unit 13 acquires information on the power [kW] of the target load to which the storage battery 50 supplies power during a power failure (S21).

  The calculation part 14 calculates the electric power supply possible time to the object load at the time of a power failure according to Formula 3 (S22).

  The output unit 15 creates an image including the power supply possible time to the target load at the time of a power failure as shown in FIG. 4 and outputs the image to the display device 20, thereby causing the display device 20 to display the image (S14A). ).

  Note that the processing procedure shown in FIG. 5 is periodically executed. Thereby, the charge state of the storage battery 50 is periodically updated, and the latest charge state of the storage battery 50 is displayed on the display device 20.

  As described above, according to the second embodiment, it is possible to display the time during which power can be supplied to the target load during a power failure. Thereby, the user can know the time which can utilize target load at the time of a power failure.

(Embodiment 3)
In the third embodiment, the remaining charge of the storage battery necessary to continue supplying power for a predetermined time during a power failure is displayed for the target load described in the second embodiment.
The configurations of the power system 1 and the visualization device 10 are the same as those shown in FIG.
However, each processing unit of the visualization device 10 further executes the following processing.

  The set value acquisition unit 13 acquires information on the power [kW] of the target load to which the storage battery 50 supplies power during a power failure, and the time for maintaining the power supply to the target load during a power failure. The set value acquisition unit 13 acquires these pieces of information from the input device or the storage device as in the first embodiment.

  The calculation part 14 calculates the charge remaining amount of the storage battery 50 required at the time of a power failure based on the electric power of object load, and the time which maintains electric power supply. For example, the calculation unit 14 calculates the remaining charge amount according to the following Equation 4.

  Moreover, the calculation part 14 calculates the dischargeable time to the charge remaining amount which the storage battery 50 requires at the time of a power failure according to the following formula | equation 5.

  The output unit 15 creates an image indicating the remaining charge amount of the storage battery 50 required at the time of a power failure, and outputs the created image to the display device 20, thereby causing the display device 20 to display the image.

  FIG. 6 is a diagram illustrating an example of an image generated by the output unit 15 according to Embodiment 3 of the present invention and displayed on the display device 20.

  In the image, a breakdown of the capacity of the storage battery 50 is shown. That is, the image shows the region 100 indicating the rated capacity of the storage battery 50 and the regions 101, 102, 104, 106 and 107 constituting the region 100. Each of these regions is shown in a different manner (eg, a different color or pattern).

  The meanings of regions 101, 102 and 104 are the same as those shown in FIG. 4, and thus detailed description thereof will not be repeated.

  An area 106 indicates the remaining charge necessary for a power failure. For example, when the remaining charge required during a power failure corresponds to 10% of the rated capacity of the storage battery 50, the area 106 is determined to be 10% of the area 100.

  A region obtained by combining the regions 104, 106, and 107 indicates the remaining charge amount of the storage battery 50. For example, when the SOC of the storage battery 50 is 45%, the area of the area including the areas 104, 106, and 107 is determined to be 45% of the area of the area 100. When the area of the region 104 is determined to be 10% of the area of the region 100 as in FIG. 2, and the area of the region 106 is determined to be 10% of the area of the region 100 as described above. In other words, the area of the region 107 is determined to be 25% of the area of the region 100. An area 107 indicates a remaining charge level that can be discharged to a required remaining charge level during a power failure.

  Also, the image created by the output unit 15 indicates the time during which power can be supplied from the storage battery 50 at the time of a power failure (for example, 30 h) in the region 105, as in FIG.

  FIG. 7 is a flowchart showing an example of a processing procedure of processing executed by the visualization apparatus 10 according to Embodiment 3 of the present invention.

  The visualization device 10 executes the processes of steps S11 to S13, S21, and S22. These processes are the same as those shown in FIG. 3 or FIG. However, the difference is that the calculation unit 14 calculates the dischargeable time according to Equation 5 in step S13.

The set value acquisition unit 13 acquires the time for maintaining the power supply to the target load during a power failure (S31).
The calculation part 14 calculates the charge remaining amount required at the time of a power failure according to Formula 4 (S32).

  The output unit 15 creates an image including information on the remaining charge necessary for a power failure as shown in FIG. 6 and outputs the image to the display device 20, thereby causing the display device 20 to display the image (S14B).

  Note that the processing procedure shown in FIG. 7 is periodically executed. Thereby, the charge state of the storage battery 50 is periodically updated, and the latest charge state of the storage battery 50 is displayed on the display device 20.

  As described above, according to the third embodiment, it is possible to display the remaining amount of charge of the storage battery that is required to supply power for the time during which power supply is maintained to the target load during a power failure. Thereby, the user can control and operate the storage battery 50 so as not to fall below the remaining charge. Therefore, at the time of a power failure, it is possible to supply power from the storage battery 50 to the target load only for the time during which power supply is maintained.

(Modification of Embodiment 3)
In the image created by the output unit 15 illustrated in FIG. 6, the areas 101, 102, 104, 106, and 107 are proportional to the amount of power, but each area may be proportional to time.

  FIG. 8 is a diagram illustrating an example of an image generated by the output unit 15 according to the modification of the third embodiment of the present invention and displayed on the display device 20. In this figure, areas 102, 107, and 106 are respectively the remaining chargeable time up to the upper limit of use, the remaining dischargeable time up to the remaining charge required at the time of power failure, and the time at which the minimum power supply is to be maintained at the time of power failure. The area is proportional to

  According to this modification, it is possible to display the remaining amount of charge necessary at the time of a power failure in a size corresponding to the time for maintaining the power supply at the time of the power failure. For this reason, the user can know intuitively the size of the time which can supply electric power at the time of a power failure.

[Appendix]
In the above-described embodiment, it is assumed that the power system 1 is installed in a factory, but the installation location of the power system 1 is not limited to the factory. For example, the power system 1 may be installed in a building, a condominium, a home, or the like.

  Specifically, the above-described visualization apparatus 10 may be configured as a computer system including a microprocessor, a ROM (Read Only Memory), a RAM (Random Access Memory), an HDD, a display unit, a keyboard, a mouse, and the like. . A computer program is stored in the RAM or HDD. Each device achieves its functions by the microprocessor operating according to the computer program. Here, the computer program is configured by combining a plurality of instruction codes indicating instructions for the computer in order to achieve a predetermined function.

  Furthermore, some or all of the constituent elements constituting the visualization device 10 may be configured by one system LSI. The system LSI is an ultra-multifunctional LSI manufactured by integrating a plurality of components on a single chip, and specifically, a computer system including a microprocessor, ROM, RAM, and the like. . A computer program is stored in the RAM. The system LSI achieves its functions by the microprocessor operating according to the computer program.

Furthermore, the present invention may be a computer-readable non-transitory recording medium such as an HDD, a CD-ROM, or a semiconductor memory.
The visualization device 10 may be realized by a plurality of computers.

In addition, some or all of the functions of the visualization device 10 may be provided by cloud computing. That is, part or all of the functions of the visualization device 10 may be realized by the cloud server. For example, in the visualization device 10, the calculation unit 14 is realized by a cloud server, and the visualization device 10 acquires the remaining charge amount acquired by the remaining charge amount acquisition unit 12 and the setting value acquisition unit 13 from the cloud server. The configuration may be such that the set value is transmitted and calculation results such as the dischargeable time and the chargeable time are received from the cloud server.
Furthermore, the above embodiment and the above modification examples may be combined.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the meanings described above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

DESCRIPTION OF SYMBOLS 1 Electric power system 10 Visualization apparatus 11 Communication I / F part 12 Charge remaining amount acquisition part 13 Set value acquisition part 14 Calculation part 15 Output part 20 Display apparatus 22 Communication network 30 Electric power equipment 40 Internal combustion power generator 50 Storage battery 60 Solar power generator 70 Load device 80 AC distribution line 90 Power system

Claims (9)

A visualization device for visualizing the state of charge of a storage battery that can be used as a load on a generator,
A remaining charge acquisition unit for acquiring the remaining charge of the storage battery;
A set value acquisition unit for acquiring an upper limit remaining amount of the usable storage battery;
Based on the remaining charge of the storage battery and the upper limit remaining amount of the storage battery, a calculation unit that calculates a chargeable time to the upper limit remaining amount,
A visualization apparatus comprising: an output unit that outputs an image indicating the chargeable time calculated by the calculation unit for displaying the image. The set value acquisition unit further acquires a rated output of the storage battery,
The calculation unit is capable of charging up to the upper limit remaining amount when the storage battery is charged at the rated output based on the remaining charge of the storage battery, the upper limit remaining amount of the storage battery, and the rated output of the storage battery. The visualization device according to claim 1 which calculates time. The set value acquisition unit further acquires a lower limit remaining amount of the storage battery,
The calculation unit further includes the lower limit remaining amount when the storage battery is discharged at the rated output based on a current remaining charge amount of the storage battery, a lower limit remaining amount of the storage battery, and a rated output of the storage battery. Calculate the dischargeable time until
The visualization device according to claim 2, wherein the output unit outputs the image further indicating the dischargeable time calculated by the calculation unit for display of the image. The set value acquisition unit further acquires information on power of a target load to which the storage battery supplies power during a power failure,
The calculation unit further calculates a time during which the storage battery can supply power to the target load at the time of a power failure based on the remaining charge of the storage battery and the power of the target load.
The visualization according to any one of claims 1 to 3, wherein the output unit outputs, for display of the image, the image that further indicates a time during which the storage battery can supply power to the target load during a power failure. apparatus. The set value acquisition unit further acquires information on power of a target load to which the storage battery supplies power during a power failure, and time for maintaining power supply to the target load during a power failure,
The calculation unit further calculates the remaining charge amount of the storage battery required at the time of a power failure based on the power of the target load and the time for maintaining the power supply,
The visualization device according to any one of claims 1 to 3, wherein the output unit outputs the image further indicating a remaining charge amount of the storage battery required at the time of a power failure for displaying the image. The said output part outputs the said image which showed the charge remaining amount of the said storage battery required at the time of a power failure in the magnitude | size according to the time which maintains the said electric power supply for the display of the said image. Visualization device. The visualization device according to any one of claims 1 to 6, wherein the output unit outputs the image showing a plurality of display target items in different modes for display of the image. A visualization method for visualizing the state of charge of a storage battery that can be used as a load on a generator,
Obtaining the remaining charge of the storage battery;
Obtaining an upper limit remaining amount of the usable storage battery;
Calculating a chargeable time to the upper limit remaining amount based on a remaining charge amount of the storage battery and an upper limit remaining amount of the storage battery;
Outputting an image indicating the calculated chargeable time for display of the image. A computer program for causing a computer to function as a visualization device that visualizes the state of charge of a storage battery that can be used as a load on a generator,
The computer,
A remaining charge acquisition unit for acquiring the remaining charge of the storage battery;
A set value acquisition unit for acquiring an upper limit remaining amount of the usable storage battery;
Based on the remaining charge of the storage battery and the upper limit remaining amount of the storage battery, a calculation unit that calculates a chargeable time to the upper limit remaining amount,
A computer program for causing an image indicating the chargeable time calculated by the calculation unit to function as an output unit for outputting the image.

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