JP2017135945A - Storage battery control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a storage battery control device capable of suppressing deterioration of an economic effect of a storage battery.SOLUTION: A storage battery control device 10 includes: a storage battery 120 that stores electric charges by electric power supplied from an external power supply 210; and a control unit 110 for executing stockpiling amount variable control of changing a stockpiling amount of the storage battery 120 in accordance with a power failure probability level when weather information and area information are acquired to calculate the power failure probability level, and the stop of the external power supply 210 is predicted on the basis of the power failure probability level.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a storage battery control device that controls a storage state of a storage battery.

  For example, when bad weather such as typhoon, heavy rain, and strong wind is predicted, the user manually stops the discharge of the storage battery or stores the storage battery in advance, so that the external power supply such as a commercial power supply stops. Sometimes you can be prepared. Thereby, the reserve amount of the storage battery in an emergency can be ensured. However, when the user forgets the operation of stopping the discharge or the operation of power storage or cannot perform the operation, there is a problem that the storage amount of the storage battery cannot be secured in an emergency. In addition, there is a problem that it is troublesome for the user to perform operations and settings.

  On the other hand, Patent Document 1 discloses a power supply system that increases the amount of charge stored in a secondary battery after obtaining a disaster occurrence forecast from a steady state. The power supply system described in Patent Document 1 allows only necessary DC devices to be operated for each type of disaster by operating only necessary DC devices when a disaster occurs.

JP 2009-148070 A

  However, even if a disaster such as an earthquake or typhoon occurs, there are many cases where a power outage does not actually occur, and the occurrence of a disaster and the occurrence of a power outage are not uniquely related. For this reason, there is a problem that the possibility of a power failure does not increase just by acquiring and applying the information about the occurrence of a disaster, and the accuracy of predicting the stop of the external power supply is poor. When the prediction accuracy is poor, there is a problem that the energy management economic effect is reduced due to an increase in the period during which the battery capacity cannot be used. In addition, if the storage battery is charged only by acquiring information on the occurrence forecast of the disaster, it is charged with expensive electric power in the daytime, and there is a problem that the economic effect is lowered.

  This invention is made | formed in view of such a subject, The objective is to provide the storage battery control apparatus which can suppress the fall of the economic effect of a storage battery.

  In order to solve the above-mentioned problem, a storage battery control device according to the present invention is a storage battery control device (10) for controlling a storage state of a storage battery, and stores a charge by electric power supplied from an external power source (210) ( 120) and the local information including the weather information about the weather of the installation location where the storage battery is installed and the power outage probability of the installation location to obtain the power outage probability level, and based on the power outage probability level, If a stop is predicted, the control part (110) which performs the stockpiling amount variable control which fluctuates the stockpiling amount of a storage battery according to a power failure possibility level is provided.

  The control unit in the present invention controls the storage amount of the storage battery so that the battery capacity can be secured when the power failure possibility level is high and there is a high possibility that a power failure that is a stoppage of power supply from the external power source occurs. Since the control unit obtains not only weather information but also regional information and calculates the level of power outage possibility, it is possible to predict the occurrence of power outage for each region with higher accuracy, and control to increase the stockpiling amount is not possible. Less need to be done. Since it can suppress that the period when battery capacity cannot be used increases, it can suppress that the utilization factor of a storage battery falls, and can suppress the fall of an economic effect.

  ADVANTAGE OF THE INVENTION According to this invention, the storage battery control apparatus which can suppress the fall of the economic effect of a storage battery can be provided.

FIG. 1 is a block diagram showing the configuration of the storage battery control device according to the present embodiment. FIG. 2 is a flowchart for explaining processing of the storage battery control device according to the present embodiment. FIG. 3 is a diagram for explaining the storage amount of the storage battery. FIG. 4 is a graph illustrating the relationship between time and battery capacity. FIG. 5 is a table illustrating weather information and weather information coefficients. FIG. 6 is a table illustrating addresses, power failure history information, and area information coefficients. FIG. 7 is a flowchart illustrating another process of the storage battery control device according to the present embodiment. FIG. 8 is a flowchart illustrating still another process of the storage battery control device according to the present embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In order to facilitate the understanding of the description, the same constituent elements in the drawings will be denoted by the same reference numerals as much as possible, and redundant description will be omitted.

  First, the configuration of the storage battery control device 10 according to the present embodiment will be described with reference to FIG. The storage battery control device 10 according to the present embodiment is applied to, for example, a detached house or an apartment house.

  The storage battery control device 10 according to the present embodiment includes a control unit 110, a storage battery 120, an operation unit 130, a notification unit 140, and a power conditioner 150. However, the operation unit 130 and the notification unit 140 are not necessarily provided. Further, the notification unit 140 may be provided as a remote control device integrated with the operation unit 130.

  Control unit 110 is electrically connected to storage battery 120, operation unit 130, and notification unit 140. The storage battery 120 is electrically connected to the power conditioner 150. The power conditioner 150 is electrically connected to the external power source 210 via the distribution board 211. The power conditioner 150 includes an inverter and a converter. The power conditioner 150 can convert AC power supplied from the external power supply 210 into DC power and supply it to the storage battery 120. Further, the power conditioner 150 can convert the DC power supplied from the storage battery 120 into AC power and supply it to the device 220 side. The external power supply 210 is a commercial power supply, for example, and supplies power to the storage battery 120 via the distribution board 211 and the power conditioner 150.

  The device 220 is provided as a load that is driven by electric power supplied from the external power supply 210 via the distribution board 211. The wide area network 230 constructs the Internet and is connected to the first server 241 and the second server 242. In the example illustrated in FIG. 1, the external power supply 210 supplies power to the three devices 220. However, the number of devices 220 to which the external power supply 210 supplies power is not particularly limited.

  The control unit 110 controls the storage of the storage battery 120. The storage battery 120 can store electric charge with electric power supplied from the external power supply 210 via the power conditioner 150 and the distribution board 211. Moreover, the storage battery 120 can discharge the stored charge. That is, the storage battery 120 performs charging and discharging based on the signal S1 transmitted from the control unit 110. On the other hand, the storage battery 120 can transmit a signal S <b> 2 related to battery information to the control unit 110.

  As described above, the supply line 115 connected between the control unit 110 and the storage battery 120 is a communication path used when the control unit 110 and the storage battery 120 transmit signals. The supply line 115 may be used as a power feeding path when supplying power. For example, the supply line 115 enables communication between the control unit 110 connected to the supply line 115 and the storage battery 120 by superimposing a communication signal that transmits data using a high-frequency carrier wave on a DC voltage. Good. This technique is similar to a power line carrier technique in which a communication signal is superimposed on an AC voltage in a power line that supplies AC power. As described above, the supply line 115 has a function as a communication path used when the control unit 110 and the storage battery 120 transmit signals, and further has a function as a power supply path used when supplying power. You may do it. Moreover, the control part 110 may be integrated in the same apparatus as the apparatus in which the storage battery 120 was integrated, and may be provided as a separate apparatus from the apparatus in which the storage battery 120 was integrated.

  The first server 241 is connected to the wide area network 230 and stores weather information A1. Examples of the weather information A1 include typhoon information, heavy rain information, and strong wind information. For this reason, the weather information A1 includes information related to the weather in which a power failure that is a stop of the external power supply 210 is predicted. The control unit 110 can acquire the weather information A1 stored in the first server 241 via the wide area network 230. In addition, when the weather information A1 is updated, the control unit 110 acquires the updated weather information A1 via the wide area network 230. That is, the control unit 110 can acquire the latest data of the weather information A1.

  The second server 242 is connected to the wide area network 230 and stores area information A2. Examples of the area information A2 include an address of an arbitrary area and power outage history information within a predetermined period in an arbitrary area. Therefore, the area information A2 includes information specific to an arbitrary area. The control unit 110 can acquire the area information A2 stored in the second server 242 via the wide area network 230. In addition, when the area information A2 is updated, the control unit 110 acquires the updated area information A2 via the wide area network 230. That is, the control unit 110 can acquire the latest data of the area information A2.

  The control unit 110 may acquire information manually set by the user using the operation unit 130 as the regional information A2 instead of acquiring the regional information A2 via the wide area network 230. Alternatively, the control unit 110 may acquire the area information A2 using GPS instead of acquiring the area information A2 via the wide area network 230.

  When the external power supply 210 is stopped, the control unit 110 executes control for supplying power from the storage battery 120 to the device 220 and drives the device 220. Thereby, the storage battery 120 functions as an auxiliary power source when the external power source 210 is stopped. Therefore, when the stop of the external power supply 210 is predicted, it is desirable to increase the storage amount of the storage battery 120. The storage amount of the storage battery 120 corresponds to the lower limit amount of the charge amount stored in the storage battery 120.

  In the storage battery control device 10, the control unit 110 acquires the weather information A1 related to the weather where the stop of the external power supply 210 is predicted and the regional information A2 specific to an arbitrary region, and calculates the power failure possibility level. And the control part 110 performs the reserve amount variable control which controls the reserve amount of the storage battery 120 when the stop of the external power supply 210 is estimated according to a power failure possibility level.

  As a result, the occurrence of a power outage in each region is predicted with better accuracy, the need for variable storage amount variable control is reduced, and an increase in the period during which battery capacity cannot be used is suppressed. Thereby, it can suppress that the utilization factor of the storage battery 120 falls, and can suppress the fall of an economic effect.

  Next, processing of the storage battery control device 10 according to the present embodiment will be described with reference to FIGS.

  As described above with reference to FIG. 1, the control unit 110 performs control to supply power from the storage battery 120 to the device 220 when the external power supply 210 is stopped. Therefore, it is desirable for the storage battery 120 to have a reserve amount of a certain amount or more. Further, the overdischarge of the storage battery may cause a failure or deterioration of the storage battery. Also from this point of view, it is desirable that the storage battery 120 has a storage amount of a certain amount or more.

  Therefore, the control unit 110 sets the storage amount of the storage battery 120. That is, as illustrated in FIG. 3 and FIG. 4, the control unit 110 sets the normal stock amount C <b> 1 at the normal time when the stop of the external power supply 210 is not predicted. The normal stock amount C1 means the lower limit amount of discharge at the normal time. That is, the normal stock amount C1 means the lower limit amount of the charge amount stored in the storage battery 120 in the normal time. As in the normal mode M1 illustrated in FIG. 4, the control unit 110 charges and discharges the storage battery 120 so that the battery capacity of the storage battery 120 is in the range of the normal storage amount C1 to 100% in the normal time. Execute the control. The battery capacity of the storage battery 120 corresponds to the amount of charge stored in the storage battery 120.

  On the other hand, the control unit 110 calculates the emergency stockpiling amount C2 in an emergency when the stop of the external power supply 210 is predicted. The emergency stockpiling amount C2 means a lower limit amount of discharge in an emergency. That is, the emergency stockpiling amount C2 means the lower limit amount of the charge amount stored in the storage battery 120 in an emergency. As in the emergency mode M2 illustrated in FIG. 4, the controller 110 charges and discharges the storage battery 120 so that the battery capacity of the storage battery 120 is within the range of the emergency storage amount C2 to 100% in an emergency. Execute the control. The emergency stockpiling amount C2 is set in order to secure the stockpiling amount of the storage battery 120 when the stop of the external power supply 210 is predicted. Therefore, the emergency stockpiling amount C2 is larger than the normal stockpiling amount C1.

  The processing of the storage battery control device 10 according to this embodiment will be specifically described with reference to FIG. In step S101, the control unit 110 acquires the latest data of the weather information A1 and the area information A2. As described above with reference to FIG. 1, the control unit 110 acquires the weather information A <b> 1 stored in the first server 241 via the wide area network 230. In addition, the control unit 110 acquires the area information A2 stored in the second server 242 via the wide area network 230, for example. Note that, as described above with reference to FIG. 1, the control unit 110 may acquire the area information A2 by manual setting by the user or using GPS.

  In step S102, the control unit 110 converts the acquired weather information A1 into a weather information coefficient. For example, the control unit 110 stores the conversion table shown in FIG. According to the conversion table shown in FIG. 5, when the acquired weather information A1 is “typhoon warning”, the control unit 110 converts the weather information A1 into a weather information coefficient “1”. When the acquired weather information A1 is “Typhoon Warning”, the control unit 110 converts the weather information A1 into a weather information coefficient “0.8”. When the acquired weather information A1 is “heavy rain warning”, the control unit 110 converts the weather information A1 into a weather information coefficient “0.8”. When the acquired weather information A1 is “heavy rain warning”, the control unit 110 converts the weather information A1 into a weather information coefficient “0.6”. When the acquired weather information A1 is “strong wind warning”, the control unit 110 converts the weather information A1 into a weather information coefficient “0.7”. When the acquired weather information A1 is “strong wind warning”, the control unit 110 converts the weather information A1 into a weather information coefficient “0.5”.

  Note that the conversion table in which the control unit 110 converts the weather information A1 into the weather information coefficient is not limited to the conversion table shown in FIG. Moreover, the control part 110 may store numerical formula instead of the conversion table, and may convert the weather information A1 into the weather information coefficient using the mathematical formula.

  In step S102, the control unit 110 converts the acquired area information A2 into an area information coefficient. For example, the control unit 110 stores the conversion table shown in FIG. According to the conversion table shown in FIG. 6, the control unit 110 converts the area information A2 into the area information coefficient “0.1” when the acquired area information A2 is the address of “A city B town”. To do. Alternatively, the control unit 110 converts the area information A2 into the area information coefficient “0.1” when the power failure history information in the past predetermined period of the acquired area information A2 is “0 (times)”. . As described above, the control unit 110 derives a regional information coefficient using the regional information A2 including at least one of the address of an arbitrary region and the power failure history information regarding the history of past power failures in the arbitrary region.

  When the acquired area information A2 is the address of “B city C town”, the control unit 110 converts the area information A2 into the area information coefficient “0.5”. Alternatively, the control unit 110 converts the area information A2 into the area information coefficient “0.5” when the power failure history information in the past predetermined period of the acquired area information A2 is “5 (times)”. .

  When the acquired area information A2 is the address of “C city D town”, the control unit 110 converts the area information A2 into the area information coefficient “1”. Alternatively, when the power failure history information in the past predetermined period of the acquired area information A2 is “12 (times)”, the control unit 110 converts the area information A2 into the area information coefficient “1”.

  When the acquired area information A2 is the address of “D city E town”, the control unit 110 converts the area information A2 into the area information coefficient “1”. Alternatively, when the power failure history information in the past predetermined period of the acquired area information A2 is “15 (times)”, the control unit 110 converts the area information A2 into the area information coefficient “1”.

  In addition, the conversion table in which the control unit 110 converts the area information A2 into the area information coefficient is not limited to the conversion table illustrated in FIG. Further, the control unit 110 may store mathematical expressions instead of the conversion table, and convert the regional information A2 into regional information coefficients using the mathematical expressions.

  In step S103, the control unit 110 calculates a power failure possibility level using the weather information coefficient and the area information coefficient. The power failure possibility level is calculated by multiplying the weather information coefficient and the regional information coefficient. That is, the power failure possibility level is a product of the weather information coefficient and the regional information coefficient. As described above, in step S105, the control unit 110 obtains the weather information A1 related to the weather where the stop of the external power supply 210 is predicted and the regional information A2 specific to an arbitrary region, and calculates the power failure possibility level. To do.

  In step S104, the control unit 110 calculates the emergency stockpiling amount C2 using the power failure possibility level and the maximum value C3 of the emergency stockpiling amount. The emergency stockpiling amount C2 is calculated by multiplying the power failure possibility level and the maximum value C3 of the emergency stockpiling amount by each other. That is, the emergency stockpiling amount C2 is a product of the power failure possibility level and the maximum value C3 of the emergency stockpiling amount. As described above, in step S104, the control unit 110 controls the emergency reserve amount C2 of the storage battery 120 when the stop of the external power supply 210 is predicted according to the power failure possibility level.

  In step S105, the control part 110 controls operation | movement of the storage battery 120 using the emergency stockpiling amount C2. In other words, the controller 110 charges and discharges the storage battery 120 with the remaining battery capacity other than the emergency reserve amount C2. In other words, the control unit 110 controls the charging and discharging of the storage battery 120 so that the battery capacity of the storage battery 120 falls within the range of the emergency reserve amount C2 to 100%.

  According to the storage battery control device 10 according to the present embodiment, not only the weather information A1 but also the area information A2 is further acquired to calculate the power outage possibility level, so that the occurrence of a power outage for each area is predicted with better accuracy, Suppresses the increase in periods when battery capacity cannot be used. That is, unnecessary control of the emergency stockpiling amount C2 is reduced. Thereby, it can suppress that the utilization factor of a storage battery falls, and can suppress the fall of an economic effect.

  Further, the area information A2 includes at least one of an address of an arbitrary area and an outage history information regarding a history of past outages in an arbitrary area. As a result, it is possible to predict the occurrence of a power failure in the area with better accuracy, and to further suppress an increase in the period during which the battery capacity cannot be used.

  In the storage battery control device 10 according to the present embodiment, the control unit 110 controls the emergency reserve amount C2 of the storage battery 120 when the stop of the external power supply 210 is predicted according to the power failure possibility level. Storage of the storage battery 120 is performed so that the battery capacity of 120 is equal to or greater than the emergency reserve amount C2. For example, as illustrated in FIG. 4, at time T1 when the battery capacity is less than the emergency reserve amount C2, the control unit 110 controls the emergency reserve amount C2 of the storage battery 120 according to the power failure possibility level. The lower limit of the amount of charge stored in the storage battery 120 is raised from the normal stock amount C1 to the emergency stock amount C2. Therefore, the control part 110 performs the electrical storage of the storage battery 120 so that the battery capacity of the storage battery 120 becomes more than the emergency reserve amount C2.

  As described above, the control unit 110 controls the emergency storage amount C2 of the storage battery 120 according to the power failure possibility level so that the battery capacity of the storage battery 120 becomes equal to or greater than the emergency storage amount C2. 110 may include a process in which the storage battery 120 stores power.

  Next, another process of the storage battery control device 10 according to the present embodiment will be described with reference to FIG.

  The processing in step S201, step S202, and step S203 is the same as the processing in step S101, step S102, and step S103 described above with reference to FIG.

  In step S204 following step S203, the control unit 110 determines whether or not the power failure possibility level is a certain level or more. If the power failure possibility level is equal to or higher than a certain level, the process proceeds to step S205. If the power failure possibility level is not higher than a certain level, the process proceeds to step S206. In step S205, the control unit 110 determines that there is a possibility of a power failure, and starts the operation in the emergency mode M2 at, for example, time T1 illustrated in FIG.

  That is, the control unit 110 calculates the emergency stockpiling amount C2 using the power failure possibility level and the maximum value C3 of the emergency stockpiling amount in the emergency mode M2. The calculation method of the emergency stockpiling amount C2 is as described above with reference to FIG. Alternatively, the emergency stockpiling amount C2 may be indirectly set by the user operating the operation unit 130.

  That is, the maximum value C3 of the emergency stockpiling amount can be set to a plurality of values by the user operating the operation unit 130. Since the emergency stockpiling amount C2 is the product of the power failure possibility level and the maximum value C3 of the emergency stockpiling amount, if the user sets the maximum value C3 of the emergency stockpiling amount, the maximum value of the set emergency stockpiling amount The emergency stockpiling amount C2 is set according to C3. In this manner, the user may indirectly set the emergency stock amount C2 by operating the operation unit 130 and setting the maximum value C3 of the emergency stock amount.

  And the control part 110 performs control of charge and discharge of the storage battery 120 so that the battery capacity of the storage battery 120 may be in the range of the emergency reserve amount C2 or more and 100% or less.

  In step S206, the control unit 110 determines that there is no possibility of a power failure, and starts the operation in the normal mode M1 at time T2 shown in FIG. 4, for example. That is, in the normal mode M1, the control unit 110 controls the charging and discharging of the storage battery 120 so that the battery capacity of the storage battery 120 is in the range of the normal storage amount C1 to 100%. This is as described above with reference to FIG.

  As described above, when the controller 110 determines that there is a possibility of a power failure, the controller 110 executes the operation in the emergency mode M2, and the emergency storage amount C2 of the storage battery 120 when the stop of the external power supply 210 is predicted. May be controlled according to the power failure possibility level. According to this, even in the process of the flowchart shown in FIG. 7, the same effects as those described above with reference to FIGS.

  Next, another process of the storage battery control device 10 according to the present embodiment will be described with reference to FIG.

  The processing of step S301, step S302, step S303, step S304, and step S305 is the same as the processing of step S101, step S102, step S103, step S104, and step S105 described above with reference to FIG.

  In step S306 following step S305, the control unit 110 starts the control of the emergency stockpiling amount C2 and then waits for a predetermined number of days or more from the power failure prediction date D2 (see FIG. 4) when the external power supply 210 is predicted to stop. It is determined whether or not D1 (see FIG. 4) exists. The start of control of the emergency stockpiling amount C2 corresponds to the start of operation in the emergency mode M2 (time T1). The power failure prediction date D2 at which the stop of the external power supply 210 is predicted can be determined by the control unit 110 obtaining the weather information A1 and the area information A2 and calculating the power failure possibility level.

  If the predetermined number of days D1 or more does not exist from the start of the control of the emergency stocking amount C2 to the predicted power failure date D2 when the external power supply 210 is predicted to stop, the process proceeds to step S307. In step S307, the control unit 110 controls the charging of the storage battery 120 regardless of the time zone, even in the time zone before night. That is, the control part 110 performs control of charge of the storage battery 120 in the daytime. In this case, the control unit 110 may control charging of the storage battery 120 during daytime and nighttime.

  On the other hand, if there is a predetermined number of days D1 or more from the start of the control of the emergency stocking amount C2 to the predicted power failure date D2 when the external power source 210 is predicted to stop, the process proceeds to step S308. In step S308, the control unit 110 controls charging of the storage battery 120 during the night time period.

  According to this, when there is a predetermined number of days D1 or more from the start of the control of the emergency stockpiling amount C2 to the power failure prediction date D2 where the stop of the external power supply 210 is predicted, the control unit 110 Avoid storing electricity with expensive power during the day, and store electricity with cheap power during the night. Thereby, the fall of an economic effect can be suppressed. The night time zone in this embodiment is an example of the specific time zone in the present invention. The specific time zone for charging the storage battery 120 may be a time zone other than the night time zone, for example, because the electricity bill is cheap.

  In addition, the control part 110 performs control which notifies a user by the notification part 140 that the emergency stock amount C2 of the storage battery 120 when the stop of the external power supply 210 is predicted is controlled according to the power failure possibility level. May be executed. Thereby, the user can recognize that control of emergency stockpiling amount C2 is performed.

  The user can request the stop of the control of the emergency stockpiling amount C2 by operating the operation unit 130 in response to this notification. For example, the user may think that it is not necessary to execute control of the emergency stockpiling amount C2 when going out. In such a case, the user can request the stop of the control of the emergency stockpiling amount C2 through the operation unit 130.

  When the user requests to stop the control of the emergency stock amount C2, the control unit 110 stops the control of the emergency stock amount C2 as described with reference to FIG. On the other hand, when the user does not request to stop the control of the emergency stockpiling amount C2, the control unit 110 continues the control of the emergency stockpiling amount C2. According to this, it is possible to reduce unnecessary control of the emergency stockpiling amount C2, and it is possible to suppress a decrease in economic effect.

  In the storage battery control device 10 according to the present embodiment, the area information A2 can include at least one of an address of an arbitrary area and an outage history information related to a history of past outages in an arbitrary area. The control unit 110 calculates at least one of the address of the arbitrary region and the power outage history information related to the history of the past power outage in the arbitrary region as the region information A2 specific to the arbitrary region, and calculates the power outage probability level. To do. As a result, the occurrence of a power outage in the area is predicted with better accuracy, and the increase in the period during which the battery capacity cannot be used is further suppressed.

  As described above, in the present embodiment, the control unit 110 obtains regional information including the weather information about the weather at the installation location where the storage battery 120 is installed and the power outage probability at the installation location, and calculates the power outage probability level. When the stop of the external power supply 210 is predicted based on the power failure possibility level, the storage amount variable control for changing the storage amount of the storage battery 120 according to the power failure possibility level is executed.

  Since the control unit 110 calculates not only the weather information but also the area information to calculate the power failure possibility level, it is possible to predict the occurrence of the power outage for each area with higher accuracy, and the control for increasing the stockpiling amount is possible. Unnecessary execution is reduced. Since it can suppress that the period when battery capacity cannot be used increases, it can suppress that the utilization factor of a storage battery falls, and can suppress the fall of an economic effect.

  Moreover, in this embodiment, the control part 110 is performing storage amount variable control by changing the discharge lower limit of the storage battery 120. FIG. Since the storage amount of the storage battery 120 is secured by changing the discharge lower limit value, the storage battery 120 can be charged by a normal process.

  Further, in the present embodiment, the control unit 110 determines whether or not to store stock by determining whether or not a specific time period during which the storage battery 120 can be charged by the power failure prediction date and time when the external power supply 210 is predicted to stop is included. Running. An example of the storage availability determination is the determination in step S306 described with reference to FIG. If it is determined that the specific time zone is included in the determination as to whether the stockpile is available, the storage battery 120 is charged at night during the specific time zone. More specifically, the control unit 110 determines that the specific time zone is included when there is at least one day before the power failure prediction date and time.

  On the other hand, there are cases where it is necessary to determine whether or not stockpile is possible after a specific time period has already passed, such as when lightning is predicted to occur. In this embodiment, when the night time zone which is a specific time zone is not included by the power failure prediction date and time, the storage battery 120 is charged regardless of the time zone. Thus, even if it is a case where it cannot respond with a normal charge scheme, since the storage battery 120 can be charged, the response | compatibility to the occurrence of a power failure can be performed more flexibly. From this point of view, it is preferable that the control unit 110 performs a stockpile availability determination when the weather information is updated.

  In the storage battery control device 10 according to the present embodiment, the control unit 110 notifies the user that the control of the emergency stocking amount C2 is being executed, and stops the control when the user requests to stop the control. Control can be executed. By notifying the user that the control unit 110 is executing the control of the emergency storage amount C2, the user can recognize that the control of the emergency storage amount C2 is being executed. At this time, for example, when going out, the user may think that it is not necessary to execute control of the emergency stockpiling amount C2. In such a case, the control for stopping the control is executed when the user requests the stop of the control. As a result, unnecessary control of the emergency stockpiling amount C2 is reduced, and a reduction in economic effect can be suppressed.

  In the storage battery control device 10 according to the present embodiment, the maximum value C3 of the emergency reserve amount can be set to a plurality of values by the user. While the emergency stockpiling amount C2 is controlled, the user can set the maximum value C3 of the emergency stockpiling amount to a plurality of values. Then, even if the power failure possibility level is the same, the emergency stockpiling amount C2 to be controlled can be set to a plurality of values. Thereby, while being able to respond | correspond flexibly to a user's liking, the fall of an economic effect can be suppressed.

  The embodiments of the present invention have been described above with reference to specific examples. However, the present invention is not limited to these specific examples. Those in which those skilled in the art appropriately modify the design of these specific examples are also included in the scope of the present invention as long as they have the features of the present invention. Each element included in each of the specific examples described above and their arrangement, conditions, shape, and the like are not limited to those illustrated, and can be changed as appropriate. Each element included in each of the specific examples described above can be appropriately combined as long as no technical contradiction occurs.

  For example, the control unit 110 does not necessarily have to acquire the weather information A1 stored in the first server 241 via the wide area network 230. The control unit 110 uses the weather information A1 in which the time or season of the typhoon is set in advance, and the emergency storage amount C2 of the storage battery 120 when the stop of the external power supply 210 is predicted according to the power failure possibility level. You may control. Alternatively, the controller 110 uses the regional information A2 of a region where the history of power outages due to typhoons is relatively large, for example, without using the weather information A1, and the emergency of the storage battery 120 when the stop of the external power supply 210 is predicted You may control the stockpiling amount C2 according to a power failure possibility level. Alternatively, the control unit 110 uses the preset weather information A1 and, for example, the region information A2 of a region where the history of power outages due to typhoons is relatively large, the storage battery 120 when the stop of the external power supply 210 is predicted. The emergency stockpiling amount C2 may be controlled according to the power failure possibility level. Even in these cases, the same effects as those described above with respect to the storage battery control device 10 according to the present embodiment can be obtained.

10: Storage battery control device 110: Control unit 120: Storage battery 130: Operation unit 140: Notification unit 210: External power supply

Claims (9)

A storage battery control device (10) for controlling a storage state of a storage battery,
A storage battery (120) for storing electric charge by electric power supplied from an external power source (210);
Obtaining weather information regarding the weather at the installation location where the storage battery is installed and regional information including the possibility of a power outage at the installation location to calculate a power outage probability level, and based on the power outage probability level, When the stop is predicted, a control unit (110) that executes a storage amount variable control for changing the storage amount of the storage battery according to the power failure possibility level;
A storage battery control device.   The said control part is a storage battery control apparatus of Claim 1 which performs the said storage amount variable control by fluctuating the discharge lower limit of the said storage battery.   The storage battery control device according to claim 1 or 2, wherein the regional information includes at least one of an address of the installation location and a power failure history information related to a history of past power failures at the installation location. The controller is
Performing a storage propriety determination to determine whether or not a specific time zone in which the storage battery can be charged by the power failure prediction date and time when the external power supply is predicted to stop is included,
The storage battery control device according to claim 1 or 2, wherein if it is determined that the specific time zone is included, the storage battery is charged in the specific time zone.   The storage battery control device according to claim 4, wherein the control unit determines that the specific time period is included when there is a grace period of at least one day before the power failure prediction date and time.   5. The storage battery control device according to claim 4, wherein the control unit stores the storage battery regardless of a time zone when the specific time zone is not included by the power failure prediction date and time.   The storage battery control device according to claim 4, wherein when the weather information is updated, the control unit performs the storage availability determination. A notification unit (140) for notifying the user that the stockpiling variable control is being executed;
An operation unit (130) for receiving an operation from a user,
The storage battery control device according to claim 1, wherein the control unit stops the control when the user requests to stop the storage amount variable control. An operation unit (130) for receiving an operation from a user;
The storage battery control device according to claim 1, wherein the maximum value of the storage amount can be set by a user.

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