JP6976769B2 - Secondary battery control device, secondary battery control system, secondary battery control method, and program - Google Patents

Description

The present invention relates to a secondary battery control device, a secondary battery control system, a secondary battery control method, and a program.

As part of the power system reform, the negawatt trading market was established in April 2017, and there is growing interest in demand response and VPP (Virtual Power Plant).

In realizing demand response and VPP, secondary batteries such as lithium ion storage batteries are attracting attention as one of the effective energy resources. So far, various power storage systems (systems in which a storage battery and an inverse conversion device and the like are combined) have been proposed (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2016-149833

When a dedicated power storage system that realizes demand response and VPP is provided, there is a problem that the cost of introducing the power storage system becomes high. If the cost is high, it will be difficult to recover the introduction cost (investment), and it will be difficult to proceed with the introduction.

On the other hand, in Patent Document 1, control is performed to switch the supply or stop of external power to the information processing device based on the remaining charge of the storage battery mounted on the information processing device such as a notebook PC. .. That is, it is easier to reduce the introduction cost as compared with the case of providing a dedicated power storage system.

However, since the technique described in Patent Document 1 described above simply controls based on the remaining charge of the storage battery, it may be difficult to satisfy the amount of power consumption suppression required for demand response or the like. There was a problem.

The present invention has been made to solve the above problems, and is a secondary battery control device, a secondary battery control system, a secondary battery control method, and a secondary battery control method that make it easy to use a secondary battery as a negative watt resource. , The purpose is to provide the program.

In order to achieve the above object, the present invention provides the following means.
The secondary battery control device according to the first aspect of the present invention stores an acquisition unit that acquires status information regarding the secondary battery from a management unit that manages charging and discharging of the secondary battery, and an acquisition unit that acquires the acquired status information. The secondary battery that outputs a control signal for controlling charging is selected based on the storage unit, the power saving request input from the outside, and the stored status information, and the selected secondary battery is managed. It is characterized in that a command unit for outputting the control signal to the management unit is provided.

The secondary battery control system according to the second aspect of the present invention has a management unit that controls charging / discharging of a secondary battery that can be charged / discharged and collects status information regarding the secondary battery, and the management. A notification unit that notifies the status information collected by the unit, an acquisition unit that acquires the status information notified from the notification unit, a storage unit that stores the acquired status information, and power saving input from the outside. It is characterized in that a command unit for outputting a control signal for controlling charging of the secondary battery is provided based on the request and the stored status information.

The secondary battery control method according to the third aspect of the present invention stores the acquisition step of acquiring the status information regarding the secondary battery from the management unit that manages the charging / discharging of the secondary battery, and the acquired status information. It has a storage step, a power saving request input from the outside, and a command step to output a control signal for controlling charging of the secondary battery to the management unit based on the stored status information. It is a feature.

The program according to the fourth aspect of the present invention has an acquisition function for acquiring status information regarding the secondary battery from a management unit that manages charging and discharging of the secondary battery, and storage for storing the acquired status information in the computer. It is possible to realize a function, a power saving request input from the outside, and a command function to output a control signal for controlling charging of the secondary battery to the management unit based on the stored status information. It is a feature.

According to the secondary battery control device according to the first aspect of the present invention, the secondary battery control system according to the second aspect, the secondary battery control method according to the third aspect, and the program according to the fourth aspect. A secondary battery is selected based on the status information related to the secondary battery, and a control signal for controlling charging is output to the selected secondary battery. By controlling the charging in this way, the power consumed in the secondary battery can be reduced. Charging control includes control to stop charging, control to restart (start) charging, control to limit charging time, control to limit charging power, control to extend charging time, etc. included.

The status information includes at least one of the charging state of the secondary battery, the amount of power that can be charged to the secondary battery, and the connection state between the secondary battery and the charger that charges the secondary battery. Information included.

In the first aspect of the present invention, the secondary battery is mounted on a movable device and supplies electric power to the device, and the command unit is based on the stored status information. It is preferable to estimate the operating status of the device and select a secondary battery for controlling charging from a plurality of secondary batteries based on the estimated operating status.

By estimating the operating status of the device equipped with the secondary battery and selecting the secondary battery based on the estimated operating status in this way, compared with the case of selecting the secondary battery based only on the status information. Therefore, it becomes easier to reduce power consumption.

In the first aspect of the present invention, the command unit is selected when the acquisition unit acquires a response signal from the management unit that does not control charging based on the input control signal. It is preferable to select another charging / discharging unit different from the next battery and output the control signal to the other management unit that manages the charging / discharging of the other charging / discharging unit.

When charging control based on the control signal is not performed in the secondary battery selected in this way, by selecting another charging / discharging unit, as compared with the case where the other secondary battery is not selected, compared with the case where the other secondary battery is not selected. It will be easier to reduce power consumption. Examples of other charging / discharging units include secondary batteries and energy resources capable of charging and discharging electric power such as capacitors.

In the first aspect of the above invention, in the storage unit, the power consumption reduced by the control signal and the power consumption reduced by the charge control based on the control signal are contained in the secondary battery and the storage unit. It is stored in association with at least one of the management units corresponding to the secondary battery, and the command unit reduces the amount of power consumption required by the control signal and the charge control based on the control signal. It is preferable to estimate the amount of power that can be reduced in each of the secondary batteries based on the amount of power consumed, and to select the secondary battery based on the estimated amount of power that can be reduced.

Based on the power consumption reduction required by the control signal and the power consumption reduced by the charge control based on the control signal, the power consumption that can be reduced in each secondary battery is estimated. By selecting the secondary battery based on the estimation, it becomes easier to reduce the power consumption as compared with the case where the reductionable power consumption is not estimated.

In the first aspect of the above invention, the acquisition unit further acquires position information regarding the arrangement position of the secondary battery, and the storage unit is a specific location predetermined for each of the secondary batteries. The specific location information is stored, and the command unit is based on whether or not the arrangement position indicated by the location information is included in the specific location indicated by the specific location information for each of the secondary batteries. It is preferable to estimate the amount of power consumption that can be reduced and select the secondary battery based on the estimated amount of power consumption that can be reduced.

In this way, the position of the secondary battery and the amount of power consumption that can be reduced are estimated based on a predetermined specific location, and by selecting the secondary battery based on the estimation, the comparison is made with the case where the estimation is not performed. This makes it easier to reduce power consumption. As the position information regarding the placement position, the position information measured by using the position positioning system including the Global Positioning System, the position information acquired based on the network address given to the device equipped with the secondary battery, and the like, etc. Can be exemplified. Further, as a predetermined specific place, a place where the secondary battery can be charged can be exemplified.

According to the secondary battery control device according to the first aspect of the present invention, the secondary battery control system according to the second aspect, the secondary battery control method according to the third aspect, and the program according to the fourth aspect. For example, by selecting a secondary battery based on the status information related to the secondary battery and outputting a control signal for controlling charging to the selected secondary battery, it becomes easier to use the secondary battery as a negative watt resource. It plays the effect.

It is a block diagram explaining the structure of the secondary battery control system which concerns on 1st Embodiment of this invention. It is a flowchart explaining the control in the management part of FIG. It is a flowchart explaining the control in the command part of FIG. It is a flowchart explaining the control in the command part of FIG. It is a block diagram explaining the 1st modification of the secondary battery control system which concerns on 1st Embodiment. It is a block diagram explaining the 2nd modification of the secondary battery control system which concerns on 1st Embodiment. It is a block diagram explaining the 3rd modification of the secondary battery control system which concerns on 1st Embodiment. It is a block diagram explaining the 4th modification of the secondary battery control system which concerns on 1st Embodiment. It is a block diagram explaining the structure of the secondary battery control system which concerns on the 2nd Embodiment of this invention. It is a flowchart explaining the control in the command part of FIG. It is a block diagram explaining the structure of the secondary battery control system which concerns on 3rd Embodiment of this invention. It is a flowchart explaining the control in the command part of FIG. It is a block diagram explaining the structure of the secondary battery control system which concerns on 4th Embodiment of this invention. It is a flowchart explaining the control in the command part of FIG. It is a block diagram explaining the structure of the secondary battery control system which concerns on 5th Embodiment of this invention. It is a flowchart explaining the control in the command part of FIG.

[First Embodiment]
Hereinafter, the secondary battery control system and the secondary battery control device according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 8. In the present embodiment, as shown in FIG. 1, the secondary battery control system 1 and the secondary battery control device 10 of the present invention control charging / discharging in the secondary battery 21 mounted on the movable device 20. I will explain by applying it to things. The charge / discharge control in the secondary battery 21 is performed based on the demand response (power saving request: hereinafter also referred to as “DR”) which is a request for power saving (suppression of power use). For example, DR is input to the secondary battery control device 10 from the electric power company 41 that supplies commercial power.

The electric power company 41 is a business that handles electric power, may be a retail electric power business, or may be a general power transmission and distribution business. Further, the power saving request may be made by the above-mentioned electric power company 41 or a resource aggregator.

In the present embodiment, the movable device 20 will be described by applying it to an example of an information processing terminal such as a notebook PC, a tablet PC, a smartphone, or a mobile router, which is premised on being portable. In addition, the movable device 20 includes a desktop PC whose installation position can be changed and an information processing terminal such as a tower PC, which is not supposed to be carried. Further, an information processing terminal which is fixed by a fixture such as a bolt on the premise of attachment / detachment but whose installation position can be changed by removing the fixture is also included. In addition, the device 20 is not limited to the information processing terminal as described above, but may be any device provided with at least a secondary battery 21, a management unit 22, and a notification unit 23, and limits the types thereof. is not it.

As shown in FIG. 1, the secondary battery control system 1 is mainly provided with a plurality of devices 20 and a secondary battery control device 10. In the present embodiment, the plurality of devices 20 will be described by applying them to an example of an information processing terminal such as a notebook PC or a tablet PC which is premised on being carried.

As described above, the device 20 of the present embodiment has information processing such as a notebook PC having a CPU (central processing unit), ROM, RAM, an input / output interface, a tablet PC, a smartphone, and a mobile router. It is a terminal. The device 20 is equipped with a secondary battery 21, which is an energy resource that can be charged and discharged.

As shown in FIG. 1, the program stored in the storage device such as the ROM described above manages and controls the charging / discharging of the secondary battery 21 by coordinating the CPU, ROM, RAM, and input / output interface. It functions as a notification unit 23 for notifying the secondary battery control device 10 of the status information of the unit 22 and the secondary battery 21.

The secondary battery 21 supplies electric power used for operation in the device 20. In this embodiment, the example in which the secondary battery 21 is a lithium ion secondary battery will be described, but a lithium ion polymer secondary battery, a lead storage battery, a nickel-cadmium storage battery, a nickel-hydrogen battery, and the like will be described. Other types of charge / discharge batteries such as sodium / sulfur batteries may be used. Further, in the present embodiment, the secondary battery 21 will be described by applying it to an example in which the secondary battery 21 is mounted inside the device 20, but the secondary battery 21 may be mounted outside the device 20.

Commercial power is supplied to the secondary battery 21 from the electric power company 41 via the distribution board 31, the outlet 32, the tap 33, and the AC-DC converter 34.
The distribution board 31 is electrically connected to the electric power system of the electric power company 41, and is installed based on, for example, an electric equipment technical standard. The outlet 32 is electrically connected to the distribution board 31, and is an insertion port used for connecting a plug provided in an electric device.

The tap 33 has a plug that can be electrically connected to the outlet 32 at one end, and is used for connecting a plug provided in another electric device (device 20 in this embodiment) at the other end. It is provided with an outlet (for example, an OA tap or a table tap). The AC-DC converter 34 has a plug that can be electrically connected to the tap 33 at one end, a connector that can be electrically connected to the device 20 at the other end, and an alternating current (AC current). It has a converter that converts (commercial power) into direct current.

The management unit 22 manages and controls the charging / discharging of the secondary battery 21, and collects status information regarding the secondary battery 21. A known control method can be used as the charge / discharge control method for the secondary battery 21. The contents of charge / discharge control include stopping charging, restarting (starting) charging, limiting the charging time, controlling limiting the power to be charged, extending the charging time, and the like.

The status information to be collected includes the charge state (State of charge: SOC) in the secondary battery, the dischargeable power Pd in the secondary battery 21, the dischargeable time Td in the secondary battery 21, and the charge in the secondary battery 21. Information indicating a possible amount of electric power, a connection state between the secondary battery 21 and a charger for charging the secondary battery 21, and the like is included. The management unit 22 may acquire the status information discretely at predetermined intervals, or may acquire the status information continuously.

The notification unit 23 notifies the secondary battery control device 10 of the status information collected by the management unit 22 via a known communication network. The signal representing the status information may be transmitted via a signal line such as a cable connecting the notification unit 23 and the secondary battery control device 10, or may be transmitted wirelessly. As the wireless transmission format, a known format can be used and is not particularly limited.

In the present embodiment, the secondary battery control device 10 will be described by applying it to an example of an information processing device such as a server or a personal computer having a CPU (central processing unit), ROM, RAM, input / output interface, and the like.

As shown in FIG. 1, the program stored in the storage device such as the ROM described above functions as the acquisition unit 11, the storage unit 12, and the command unit 13 in cooperation with the CPU, ROM, RAM, and input / output interface. It is something that makes you.

The acquisition unit 11 acquires a signal representing the status information notified from the notification unit 23. Further, it also acquires a signal representing the DR requested by the electric power company 41. The acquisition unit 11 sends the acquired status information to at least the storage unit 12, and sends the acquired DR to the command unit 13.

The storage unit 12 stores the status information acquired by the acquisition unit 11. The stored status information is read from the storage unit 12 and output to the command unit 13. Further, the storage unit 12 may store other information used for control in the secondary battery 21.

The command unit 13 outputs a control signal for controlling charging of the secondary battery 21 based on the DR input from the electric power company 41 and the status information stored in the storage unit 12. The details of the charge control for the secondary battery 21 will be described later.

Next, control by the secondary battery control system 1 and the secondary battery control device 10 having the above configuration will be described with reference to FIGS. 2 and 3. Specifically, the control in the device 20 and the control in the secondary battery control device 10 will be described.

The control in the device 20 and the control in the secondary battery control device 10 are executed independently of each other. In other words, the control in the device 20 and the control in the secondary battery control device 10 are asynchronous processes.

First, the control contents of the management unit 22 and the notification unit 23 of the device 20 will be described with reference to FIG.
When the control is started, the management unit 22 performs a process of acquiring at least one of the SOC value of the secondary battery 21, the actual value of the power consumption of the device 20, and the rated value of the power consumption of the device 20 (. S10). The acquired SOC value and the like are stored in a storage device such as a RAM of the device 20. As a specific method for acquiring the SOC value or the like, a known acquisition method can be used and is not particularly limited.

When the SOC value is acquired, the management unit 22 receives the acquired SOC value and the like (specifically, at least the acquired SOC value, the actual power consumption value of the device 20, and the rated value of the power consumption of the device 20). A process of calculating the value of the dischargeable power Pd in the secondary battery 21 is performed based on (1) (S11). The calculated value of the dischargeable power Pd is stored in a storage device such as a RAM of the device 20. As a method for calculating the value of the dischargeable power Pd, a known calculation method can be used and is not particularly limited.

Further, the management unit 22 performs a process of calculating the value of the dischargeable time Td in the secondary battery 21 based on the acquired SOC value and the calculated dischargeable power Pd (S12). In this embodiment, the dischargeable time Td will be described by applying it to an example of calculating using the following formula. The calculated value of the dischargeable time Td is stored in a storage device such as a RAM of the device 20.

The management unit 22 performs a process of determining whether or not the secondary battery 21 is connected to a power source (S13). In other words, the process of determining whether or not the electric power company 41 is in a state where electric power can be supplied to the secondary battery 21 is performed. For example, it is determined whether or not a predetermined voltage is applied to the secondary battery 21. The method for determining whether or not the secondary battery 21 is connected to the power source is not limited to the above method, and various known methods may be used.

When it is determined in the determination process of S13 that the secondary battery 21 is connected to the power supply (YES), it is determined whether or not the acquired SOC value is equal to or greater than the predetermined lower limit value SOCmin. The determination process is performed (S14). The following examples can be given as the lower limit value SOCmin.

For example, in the case of the secondary battery 21 having a rated capacity of 100 kWh, the lower limit value SOCmin is 50% when the control is performed to always secure half (50%) of the rated capacity in case of an emergency such as a power failure. In this case, the range of available capacity of the secondary battery 21 is between 50kWh and 100kWh, and 0kWh to 50kWh is not used in case of emergency.

Further, for the purpose of avoiding deterioration of the secondary battery 21, control for avoiding a deep discharge depth may be performed. In this case, the lower limit value SOCmin is selected to be a value that does not reach a deep discharge depth at which deterioration of the secondary battery 21 occurs.

When it is determined in the determination process of S14 that the SOC value is equal to or greater than the lower limit value SOCmin (YES), the management unit 22 stores the value of 1 in the state State and stores it in a storage device such as RAM. (S15).

When it is determined in the determination process of S13 that the secondary battery 21 is not connected to the power supply (NO), or when it is determined in the determination process of S14 that the SOC value is less than the lower limit value SOCmin (NO). In the case), the management unit 22 stores a value of 0 in the state State and performs a process of storing it in a storage device such as a RAM (S16).

After the processing of S15 or the processing of S16 is performed, the management unit 22 performs a processing of notifying the values of State, SOC, Pd, and Td (S17). Specifically, the notification unit 23 outputs a control signal for outputting the values of State, SOC, Pd, and Td toward the acquisition unit 11 of the secondary battery control device 10 via a known communication network. do. The output State, SOC, Pd, and Td values are associated with identification information that identifies at least one of the device 20 and the secondary battery 21.

When the process of S17 is performed, the management unit 22 returns to S10 again and repeats the above process. The iterative process may be performed at predetermined intervals, or may be performed continuously, and is not particularly limited.

Next, the control contents in the acquisition unit 11, the storage unit 12, and the command unit 13 of the secondary battery control device 10 will be described with reference to FIGS. 3 and 4.
When the control is started, the secondary battery control device 10 performs a process of determining whether or not the values of State, SOC, Pd, and Td are input from the notification unit 23, as shown in FIG. S20: Acquisition step). When it is determined that there is an input (YES), the acquisition unit 11 is subjected to a process of acquiring the values of State, SOC, Pd, and Td. Identification information is associated with the acquired State, SOC, Pd, and Td values.

When the values of State, SOC, Pd, and Td are acquired, a process of storing the acquired values of State, SOC, Pd, and Td in the storage unit 12 is performed (S21: storage step).

A command to control the secondary battery 21 when the process of storing the values of State, SOC, Pd, and Td is completed, or when it is determined in the determination process of S20 that there is no input (NO). Perform a processing subroutine (S22: command step).

In the command processing subroutine, as shown in FIG. 4, the command unit 13 performs a determination process of whether or not DR is input from the electric power company 41 (S30). If it is determined that there is an input (YES), the acquisition unit 11 performs a process of acquiring the DR.

When the DR acquisition process is performed, the command unit 13 performs a process of determining whether or not the value stored in the state State is 1. (S31). When the stored value is determined to be 1 (YES), the command unit 13 performs a process of stopping charging to the secondary battery 21 (S32).

The command unit 13 performs a process of extracting the secondary battery 21 of the device 20 associated with the state in which the value of 1 is stored as a candidate for stopping charging. Further, the secondary battery 21 for stopping charging is based on the amount of power consumption reduction required by DR and the values of SOC, Pd, and Td associated with the secondary battery 21 extracted as candidates. Perform the selection process.

The command unit 13 performs a process of outputting a control signal for stopping the charging of the secondary battery 21 to the management unit 22 corresponding to the selected secondary battery 21 via a known communication network. The management unit 22 to which the control signal is input controls to stop charging the secondary battery 21 according to the content of the control signal. As the control for stopping the charging of the secondary battery 21, control using a battery management application (also referred to as a battery management application) that manages the secondary battery 21 mounted on the device 20 can be exemplified. ..

When it is determined that DR is not input in the determination process of S30 (NO) after the charging stop process is performed, and when the value stored in the determination process of S31 is not 1 (NO). In case), the subroutine is terminated. After the subroutine is completed, the process returns to S20 in the flowchart of FIG. 3 and the above processing is repeated.

According to the above configuration, the secondary battery 21 is selected based on the status information regarding the secondary battery 21, and a control signal for controlling charging is output to the selected secondary battery 21. By controlling the charging in this way, it becomes easy to reduce the power consumed in the secondary battery 21. In the present embodiment, as the control of charging in the secondary battery 21, the control of stopping the charging has been described, but the control of restarting (starting) the charging and the control of limiting the charging time have been described. Or, control may be performed to extend the charging time.

When the device 20 is an information processing terminal such as a notebook PC or a tablet PC that is supposed to be carried as in the present embodiment, a considerable number of devices 20 are already widespread in the market. Further, the device 20 operates on a common operating system (OS) that is not easily affected by the unique physical configuration and communication protocol. The charge control of the secondary battery 21 is performed by an application running on the OS. Since the secondary battery control device 10 controls the charge of the secondary battery 21 via the application running on the above-mentioned OS, it is easy to control the charge of the secondary battery 21 with respect to the device 20 widely used in the market. Can be done. In other words, the secondary battery control device 10 becomes more widespread.

Further, the market in which the device 20 is widespread includes not only the domestic market but also the overseas market. Therefore, the secondary battery control device 10 can control the charge of the secondary battery 21 with respect to the device 20 in Japan and the device 20 overseas. In other words, the secondary battery control device 10 can control the charging of the secondary battery 21 for the device 20 belonging to the area in a time zone different from the time zone to which the secondary battery control device 10 belongs. When the overseas electric power trading market and the electric power trading market in Japan are linked, the secondary battery control device 10 can utilize the domestic and foreign equipment 20. In addition, the time zone of the area to which the device 20 belongs is less likely to be restricted.

The management unit 22 may control the charging / discharging of the secondary battery 21 as described in the above-described embodiment, or the management unit 22A may control the charging / discharging of the secondary battery 21 as in the first modification shown in FIG. The energized state of 34A may be controlled.

In the device 20A of the secondary battery control system 1A according to the first modification of the first embodiment, the management unit 22A that manages the charge / discharge in the secondary battery 21 and controls the energization state of the AC-DC converter 34A. Is provided. Further, the AC-DC converter 34A of this modification has a configuration capable of switching and controlling the energization and cutoff states based on the control signal output from the management unit 22A. The management unit 22A controls to switch between the energization and the cutoff state of the AC-DC converter 34A based on the control signal for stopping the charging of the secondary battery 21 input from the command unit 13.

Further, as in the second modification shown in FIG. 6, the management unit 22B may control the energization state of the tap 33B.
The device 20B of the secondary battery control system 1B according to the second modification of the first embodiment is provided with a management unit 22B that manages charging and discharging of the secondary battery 21 and controls the energization state of the tap 33B. ing. Further, the tap 33B of this modification has a configuration capable of switching and controlling the energization and cutoff states based on the control signal output from the management unit 22B. The management unit 22B controls to switch between the energization and the cutoff state of the tap 33B based on the control signal for stopping the charging of the secondary battery 21 input from the command unit 13.

Further, as in the third modification shown in FIG. 7, the management unit 22C may control the energization state of the outlet 32C.
The device 20C of the secondary battery control system 1C according to the third modification of the first embodiment is provided with a management unit 22C that manages charging and discharging of the secondary battery 21 and controls the energization state of the outlet 32C. ing. Further, the outlet 32C of the present modification has a configuration capable of switching and controlling the energization and cutoff states based on the control signal output from the management unit 22C. The management unit 22C controls to switch between the energization and the cutoff state of the outlet 32C based on the control signal for stopping the charging of the secondary battery 21 input from the command unit 13.

Further, as in the fourth modification shown in FIG. 8, the management unit 22D may control the energization state of the distribution board 31D. Specifically, the energized state is controlled by controlling the molded case circuit breaker and the electromagnetic switch provided on the distribution board 31D. In the following, it is described as simply controlling the energized state of the distribution board 31D.

The device 20D of the secondary battery control system 1D according to the fourth modification of the first embodiment has a management unit 22D that manages charging and discharging of the secondary battery 21 and controls the energization state of the distribution board 31D. It is provided. Further, the distribution board 31D of this modification has a configuration capable of switching and controlling the energization and cutoff states based on the control signal output from the management unit 22D. The management unit 22C controls to switch between the energization and the cutoff state of the distribution board 31D based on the control signal for stopping the charging of the secondary battery 21 input from the command unit 13.

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIGS. 9 and 10.
The basic configuration of the secondary battery control system and the secondary battery control device of the present embodiment is the same as that of the first embodiment, but the method of selecting the secondary battery for controlling charging is different from that of the first embodiment. ing. Therefore, in the present embodiment, the selection of the secondary battery for controlling charging will be described with reference to FIGS. 9 and 10, and other description will be omitted.

As shown in FIG. 9, the command unit 113 of the secondary battery control device 110 in the secondary battery control system 101 of the present embodiment estimates the operating status of the device 20 based on the status information stored in the storage unit 12. The secondary battery 21 for controlling charging is selected based on the estimated operating condition. The processing content in the command unit 113 will be described later.

Next, control by the secondary battery control system 101 and the secondary battery control device 110 having the above configuration will be described with reference to FIG. 10. Here, the control in the secondary battery control device 110 will be described. More specifically, a subroutine of command processing for controlling the secondary battery 21 will be described.

Of the controls in the secondary battery control device 110, the controls other than the command processing subroutine and the controls in the device 20 are the same as those in the first embodiment, and thus the description thereof will be omitted.

In the command processing subroutine, as shown in FIG. 10, the command unit 113 performs a determination process of whether or not DR is input from the electric power company 41 (S30). If it is determined that there is an input (YES), the acquisition unit 11 performs a process of acquiring the DR.

When the DR acquisition process is performed, the command unit 113 performs a process of determining whether or not the value stored in the state State is 1. (S31). When the stored value is determined to be 1 (YES), the command unit 113 performs arithmetic processing for estimating the subsequent operating status of the device 20 (S132).

The command unit 113 performs a process of acquiring the status information of the predetermined secondary battery 21 stored from the storage unit 12 and the time information associated with the status information. The command unit 113 analyzes and obtains a performance pattern of discharge and charge in the secondary battery 21 based on the acquired plurality of status information and time information.

The obtained actual pattern can be regarded as the actual operation status of the device 20 on which the secondary battery 21 is mounted. Based on the obtained actual operation status of the device 20, the command unit 113 performs arithmetic processing for estimating the subsequent operation status of the device 20.

When the subsequent operating status of the device 20 is estimated, the command unit 113 performs a process of selecting the secondary battery 21 to stop charging (S133). In the selection of the secondary battery 21, the estimated operating status of the device 20 is used. For example, during the period in which the charging of the secondary battery 21 is stopped, the device 20 is estimated to have the operating status of the device 20 equal to or higher than a predetermined threshold value (in other words, the operating rate of the device 20 is higher than the predetermined threshold value). The mounted secondary battery 21 is selected.

When the secondary battery 21 for stopping charging is selected, the command unit 113 performs a process of outputting a control signal for stopping charging to the management unit 22 of the device 20 on which the selected secondary battery 21 is mounted. Do (S134).

When it is determined that DR is not input in the determination process of S30 (NO) after the charging stop process is performed, and when the value stored in the determination process of S31 is not 1 (NO). In case), the subroutine is terminated. After the subroutine is completed, the process returns to S20 in the flowchart of FIG. 3 and the above processing is repeated as in the first embodiment.

According to the above configuration, the operating status of the device 20 on which the secondary battery 21 is mounted is estimated, and the secondary battery 21 is selected based on the estimated operating status, so that the secondary battery is based only on the status information. Compared with the case of selecting 21, it becomes easier to reduce the power consumption.

[Third Embodiment]
Next, a third embodiment of the present invention will be described with reference to FIGS. 11 and 12.
The basic configuration of the secondary battery control system and the secondary battery control device of the present embodiment is the same as that of the first embodiment, but the content of the command processing subroutine is different from that of the first embodiment. Therefore, in the present embodiment, the contents of the command processing subroutine and the like will be described with reference to FIGS. 11 and 12, and other explanations will be omitted.

As shown in FIG. 11, the command unit 213 of the secondary battery control device 210 in the secondary battery control system 201 of the present embodiment is controlled to stop charging in the secondary battery 21 that outputs a control signal for stopping charging. If this is not done, another secondary battery 221 different from the secondary battery 21 is selected. The processing content in the command unit 213 will be described later.

The management unit 222 in the device 20 of the present embodiment determines whether or not to stop the charging of the secondary battery 21 based on the control signal input from the command unit 213 according to the operating status of the device 20. be. The processing content in the command unit 213 will be described later.

Next, the control by the secondary battery control system 201 and the secondary battery control device 210 having the above configuration will be described with reference to FIG. Here, the control in the secondary battery control device 210 will be described. More specifically, a subroutine of command processing for controlling the secondary battery 21 will be described.

Of the controls in the secondary battery control device 210, the controls other than the command processing subroutine and the controls not related to the command processing subroutine in the device 220 are the same as those in the first embodiment, and thus the description thereof will be omitted. do.

In the command processing subroutine, as shown in FIG. 12, the command unit 213 performs a determination process of whether or not a DR is input from the electric power company 41 (S30). If it is determined that there is an input (YES), the acquisition unit 11 performs a process of acquiring the DR.

When the DR acquisition process is performed, the command unit 213 performs a process of determining whether or not the value stored in the state State is 1. (S31). When the stored value is determined to be 1 (YES), the command unit 213 performs a process of stopping charging to the secondary battery 21 (S32).

By the process of S32, the command unit 213 outputs a control signal for stopping charging to the management unit 222 corresponding to the selected secondary battery 21. After that, the command unit 213 performs a process of determining whether or not the management unit 222 that outputs the control signal has stopped charging (S233).

In this embodiment, it will be described by applying it to an example of performing a process of determining whether or not the management unit 222 has stopped charging based on the signal output by the management unit 222 to which the control signal is input. The management unit 222 outputs a response signal indicating stop when charging is stopped based on the input control signal, and outputs a response signal indicating refusal of stop when charging is not stopped. The management unit 222 performs a determination process based on the response signal output by the management unit 222.

When the management unit 222 does not stop charging, the user of the device 20 has set to prohibit the stop of charging, or the SOC of the secondary battery 21 is predetermined. Various cases can be exemplified, such as cases where the value is less than the value.

When the charging of the secondary battery 21 is not stopped (NO) in the determination process of S233, the command unit 213 performs a process of selecting another secondary battery (other charge / discharge unit) 221 (in the case of NO). S234). The number of other secondary batteries 221 to be selected is determined based on the amount of power consumption reduction in the secondary battery 21 whose charging has not been stopped. The command unit 213 outputs a control signal for stopping charging to the other selected secondary battery 221. After that, the process of determining whether or not the charging of S233 has been stopped is performed again.

In this embodiment, the description has been made by applying it to an example of selecting another secondary battery 221. However, the present embodiment is not limited to the secondary battery 21, and other energy sources such as capacitors that can store electric power. May be selected.

When it is determined in the determination process of S30 that DR is not input (NO), when the value stored in the determination process of S31 is not 1 (NO), the secondary battery is used in the determination process of S233. If it is determined that the charging of 21 is stopped (YES), the subroutine is terminated. After the subroutine is completed, the process returns to S20 in the flowchart of FIG. 3 and the above processing is repeated.

According to the above configuration, if the selected secondary battery 21 does not perform charge control based on the control signal, another secondary battery 221 is selected. Compared with the case where the other secondary battery is not selected, it becomes easier to reduce the power consumption by selecting the other secondary battery 221.

[Fourth Embodiment]
Next, a fourth embodiment of the present invention will be described with reference to FIGS. 13 and 14.
The basic configuration of the secondary battery control system and the secondary battery control device of the present embodiment is the same as that of the first embodiment, but the content of the command processing subroutine is different from that of the first embodiment. Therefore, in the present embodiment, the contents of the command processing subroutine and the like will be described with reference to FIGS. 13 and 14, and other explanations will be omitted.

As shown in FIG. 13, the command unit 313 of the secondary battery control device 310 in the secondary battery control system 301 of the present embodiment controls the amount of power consumption reduction required by the control signal and the charge based on the control signal. The process of estimating the amount of power that can be reduced in each secondary battery 21 based on the actual value of the amount of power consumed reduced by, and selecting the secondary battery 21 based on the estimated amount of power that can be reduced. Is to do. The processing content in the command unit 313 will be described later.

Next, control by the secondary battery control system 301 and the secondary battery control device 310 having the above configuration will be described with reference to FIG. Here, the control in the secondary battery control device 310 will be described. More specifically, a subroutine of command processing for controlling the secondary battery 21 will be described.

Of the controls in the secondary battery control device 310, the controls other than the command processing subroutine and the controls not related to the command processing subroutine in the device 20 are the same as those in the first embodiment, and thus the description thereof will be omitted. do.

In the command processing subroutine, as shown in FIG. 14, the command unit 313 performs a determination process of whether or not a DR is input from the electric power company 41 (S30). If it is determined that there is an input (YES), the acquisition unit 11 performs a process of acquiring the DR.

When the DR acquisition process is performed, the command unit 313 performs a process of determining whether or not the value stored in the state State is 1. (S31). When the stored value is determined to be 1 (YES), the command unit 313 performs a process of selecting the secondary battery 21 to stop charging (S332).

The command unit 313 determines the amount of power consumption reduced by the control signal stored in the storage unit 12 and the amount of power consumption reduced by the charge control based on the control signal for each secondary battery 21. Performs the process of acquiring the actual value. The command unit 313 estimates the amount of power consumption (also referred to as reaction amount) actually reduced when the reduction of power consumption is requested for each of the secondary batteries 21 based on these acquired values. Perform processing.

In estimating the reaction amount, the command unit 313 performs arithmetic processing for obtaining the coefficient obtained by the following formula for each secondary battery 21. The reaction amount is estimated based on the obtained coefficient and the required amount of power consumption.

The actual value of the power consumption reduced in response to the above-mentioned request for DR means the power consumption actually reduced by the charge control based on the control signal output from the command unit 313. The power consumption required by the DR means the theoretical value of the power consumption reduced by the control of charging by the control signal output from the command unit 313.

The command unit 313 selects the secondary battery 21 to stop charging based on the DR value input from the electric power company 41 and the reaction amount in each secondary battery 21 obtained by the above-mentioned arithmetic processing. Perform the processing.

When the selection process of the secondary battery 21 to stop charging is performed, the command unit 313 performs a process to output a control signal to stop charging to the selected secondary battery 21 (S333). Specifically, a process of outputting a control signal for stopping charging generated based on the calculated reaction amount to the management unit 22 of the device 20 is performed. The management unit 22 controls to stop charging the secondary battery 21 based on the input control signal.

When it is determined that DR is not input in the determination process of S30 (NO) after the charging stop process is performed, and when the value stored in the determination process of S31 is not 1 (NO). In case), the subroutine is terminated. After the subroutine is completed, the process returns to S20 in the flowchart of FIG. 3 and the above processing is repeated as in the first embodiment.

According to the above configuration, the power consumption that can be reduced in each secondary battery 21 is based on the power consumption reduction amount required by the control signal and the power consumption reduced by the charge control based on the control signal. Estimate the amount. By selecting the secondary battery 21 based on this estimation, it is possible to facilitate the reduction of power consumption as compared with the case where the reductionable power consumption is not estimated.

[Fifth Embodiment]
Next, a fifth embodiment of the present invention will be described with reference to FIGS. 15 and 16.
The basic configuration of the secondary battery control system and the secondary battery control device of the present embodiment is the same as that of the first embodiment, but the content of the command processing subroutine is different from that of the first embodiment. Therefore, in the present embodiment, the contents of the command processing subroutine and the like will be described with reference to FIGS. 15 and 16, and other explanations will be omitted.

As shown in FIG. 15, the command unit 413 of the secondary battery control device 410 in the secondary battery control system 401 of the present embodiment specifies the arrangement position indicated by the position information described later for each secondary battery 21. It estimates the amount of power consumption that can be reduced based on whether or not it is included in the specific place indicated by the place information, and selects the secondary battery 21 based on the estimated amount of power consumption that can be reduced. be. The processing content in the command unit 413 will be described later.

The device 420 in the secondary battery control system 401 is provided with a measurement unit 424 that acquires position information, which is information on the position where the device 420 is arranged. In this embodiment, the measurement unit 424 will be described by applying it to an example in which the position is measured by using a satellite positioning system represented by the Global Positioning System.

The measuring unit 424 may be capable of measuring the position where the device 420 is placed, and in addition to the satellite positioning system described above, information on the placement position may be obtained based on the network address assigned to the device 420. It may be the one to be acquired.

Next, control by the secondary battery control system 401 and the secondary battery control device 410 having the above configuration will be described with reference to FIG. Here, the control in the secondary battery control device 410 will be described. More specifically, a subroutine of command processing for controlling the secondary battery 21 will be described.

Of the controls in the secondary battery control device 410, the controls other than the command processing subroutine and the controls in the device 20 are the same as those in the first embodiment, and thus the description thereof will be omitted.

In the command processing subroutine, as shown in FIG. 16, the command unit 413 performs a determination process of whether or not a DR is input from the electric power company 41 (S30). If it is determined that there is an input (YES), the acquisition unit 11 performs a process of acquiring the DR.

When the DR acquisition process is performed, the command unit 413 performs a process of determining whether or not the value stored in the state State is 1. (S31). When the stored value is determined to be 1 (YES), the command unit 413 performs a process of selecting the secondary battery 21 to stop charging (S432).

The command unit 413 performs a process of acquiring position information from the measurement unit 424 for each secondary battery 21. Further, for each secondary battery 21, a process of acquiring specific location information stored in advance in the storage unit 12 is performed.

Here, the specific location information is information representing a specific location preset for the device 420 on which the secondary battery 21 is mounted. The specific place is a place where the secondary battery 21 is charged, or a place where the secondary battery 21 can be easily charged as compared with other places. In the present embodiment, the specific location will be described by applying to an example in which the specific location is pre-registered by the user of the device 420.

When the position information and the specific location information are acquired, the command unit 413 performs a determination process for determining whether or not the arrangement position indicated by the position information is included in the specific location indicated by the specific location information for each secondary battery 21. conduct. The command unit 413 performs arithmetic processing for estimating the reaction amount for the secondary battery 21 whose placement position is determined to be included in the specific place by the determination processing, as in the fourth embodiment.

The command unit 413 selects the secondary battery 21 to stop charging based on the DR value input from the electric power company 41 and the reaction amount in each secondary battery 21 obtained by the above-mentioned arithmetic processing. Perform the processing.

When the selection process of the secondary battery 21 to stop charging is performed, the command unit 413 performs a process to output a control signal to stop charging to the selected secondary battery 21 (S433). Specifically, a process of outputting a control signal for stopping charging generated based on the calculated reaction amount to the management unit 22 of the device 20 is performed. The management unit 22 controls to stop charging the secondary battery 21 based on the input control signal.

When it is determined that DR is not input in the determination process of S30 (NO) after the charging stop process is performed, and when the value stored in the determination process of S31 is not 1 (NO). In case), the subroutine is terminated. After the subroutine is completed, the process returns to S20 in the flowchart of FIG. 3 and the above processing is repeated as in the first embodiment.

According to the above configuration, the rechargeable power consumption is estimated based on the arrangement position of the secondary battery 21 and a predetermined specific place, and the secondary battery 21 is selected based on the estimation. This makes it easier to reduce power consumption as compared to the case where no estimation is made.

The technical scope of the present invention is not limited to the above embodiment, and various changes can be made without departing from the spirit of the present invention. For example, the present invention is not limited to the one applied to the above embodiment, and may be applied to an embodiment in which these embodiments are appropriately combined, and the present invention is not particularly limited.

1,1A, 1B, 1C, 1D, 101,201,301,401 ... Secondary battery control system, 10,110,210,310,410 ... Secondary battery control device, 11 ... Acquisition unit, 12 ... Storage unit, 13,113,213,313 ... Command unit, 20,20A, 20B, 20C, 20D, 420 ... Equipment, 21 ... Secondary battery, 22,22A, 22B, 22C, 22D, 222 ... Management unit, 23 ... Notification unit , 221 ... Other secondary battery (other charge / discharge unit), 424 ... Measurement unit, S20 ... Acquisition step, S21 ... Storage step, S22 ... Command step

Claims (7)

An acquisition unit that acquires status information from a plurality of management unit for said plurality of secondary batteries for managing charge and discharge of a plurality of secondary batteries,
A storage unit that stores the acquired status information,
Select the secondary battery that outputs a control signal for controlling charging based on the power saving request input from the outside and the stored status information, and go to the management unit that manages the selected secondary battery. A command unit that outputs the control signal and
Is provided ,
The acquisition unit further acquires position information regarding the arrangement position of the secondary battery.
The storage unit stores specific location information regarding a predetermined charging place for each of the secondary batteries, or a place where charging can be easily performed as compared with other places.
The command unit estimates the amount of power consumption that can be reduced for each of the secondary batteries based on whether or not the arrangement position indicated by the position information is included in the location indicated by the specific location information. A secondary battery control device comprising selecting the secondary battery based on an estimated reduceable power consumption. The secondary battery is mounted on a movable device and supplies electric power to the device.
The instruction unit, the operating status of the device is estimated based on the time information that is tied to said stored status information and the status information, the plurality of secondary batteries based on the estimated operating condition The secondary battery control device according to claim 1, wherein the secondary battery for which charging is controlled from the above is selected. The instruction unit, the acquisition unit, when the reply signal does not control the charging based on the inputted control signal acquired from the management unit is different from the two other than the selected secondary battery select the next cell, the other secondary battery control apparatus according to claim 1 or 2 and outputs the control signal to the other management unit for managing the charging and discharging of the secondary battery .. In the storage unit, the power consumption reduction amount required by the control signal and the power consumption amount reduced by the charge control based on the control signal correspond to the secondary battery and the secondary battery. Stored in association with at least one of the management units
The command unit can reduce the power consumption in each of the secondary batteries based on the power consumption reduction amount required by the control signal and the power consumption reduced by the charge control based on the control signal. The secondary battery control device according to claim 1 or 2, wherein the amount is estimated and the secondary battery is selected based on the estimated reduced power consumption. And controlling charging and discharging of the plurality of secondary batteries and can be charged and discharged, and a plurality of management unit that collects status information regarding the plurality of secondary batteries,
A notification unit that notifies the status information collected by the management unit,
An acquisition unit that acquires the status information notified from the notification unit, and
A storage unit that stores the acquired status information,
A control signal for selecting a secondary battery that outputs a control signal for controlling charging based on a power saving request input from the outside and the stored status information, and controlling charging for the selected secondary battery. And the command unit that outputs
Is provided ,
The acquisition unit further acquires position information regarding the arrangement position of the secondary battery.
The storage unit stores specific location information regarding a predetermined charging place for each of the secondary batteries, or a place where charging can be easily performed as compared with other places.
The command unit estimates the amount of power consumption that can be reduced for each of the secondary batteries based on whether or not the arrangement position indicated by the position information is included in the location indicated by the specific location information. A secondary battery control system characterized in that the secondary battery is selected based on an estimated reduced power consumption. An acquisition step of acquiring status information from a plurality of management unit for said plurality of secondary batteries for managing charge and discharge of a plurality of secondary batteries,
A storage step for storing the acquired status information, and
A control signal for selecting a secondary battery that outputs a control signal for controlling charging based on a power saving request input from the outside and the stored status information, and controlling charging for the selected secondary battery. And the command step to output to the management unit
Have a,
In the acquisition step, the position information regarding the arrangement position of the secondary battery is further acquired, and the position information is further acquired.
The storage step stores specific location information about a predetermined charging location for each of the secondary batteries, or a location that can be more easily charged compared to other locations.
The command step estimates the amount of power consumption that can be reduced for each of the secondary batteries based on whether or not the arrangement position indicated by the position information is included in the location indicated by the specific location information. A secondary battery control method comprising selecting the secondary battery based on an estimated reducible power consumption. On the computer
An acquisition function of acquiring status information about the plurality of secondary batteries of a plurality of management unit for managing the charging and discharging of the plurality of secondary batteries,
A storage function that stores the acquired status information,
A control signal for selecting a secondary battery that outputs a control signal for controlling charging based on a power saving request input from the outside and the stored status information, and controlling charging for the selected secondary battery. With a command function to output to the management unit
Realized ,
The acquisition function further acquires position information regarding the arrangement position of the secondary battery, and obtains the position information.
The storage function stores specific location information regarding a predetermined charging location for each of the secondary batteries, or a location that can be easily charged as compared to other locations.
The command function estimates the amount of power consumption that can be reduced for each of the secondary batteries based on whether or not the arrangement position indicated by the position information is included in the location indicated by the specific location information. A program characterized in that the secondary battery is selected based on an estimated reducible power consumption.

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