JP5758691B2 - Charge / discharge control device, charge / discharge control program, and charge / discharge control method - Google Patents

Description

  The present invention relates to a charge / discharge control device, a charge / discharge control program, and a charge / discharge control method.

  In a distributed energy system having an energy generation device and an energy storage device and connected to an electric power system and an energy load, the energy supply amount of the energy generation device, the energy storage device, and the electric power system is determined by the energy demand of the energy load. A technique is known in which the amount of energy stored in the energy storage device is equal to or greater than a certain value while matching the above (for example, see Patent Document 1).

Japanese Patent No. 4087774

  However, in the technique disclosed in Patent Document 1, for example, when the energy storage amount of the energy storage device is increased in preparation for the stop of the energy supply from the power system due to the occurrence of a disaster (that is, a power failure), the energy storage The energy release of the device is limited. For this reason, there existed a problem that the running cost of the electric equipment or electric equipment which produces energy load will increase.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a battery that can store power in a storage battery in preparation for a power failure while suppressing an increase in running cost of an electric device or an electric facility. The object is to provide a discharge control device, a charge / discharge control program, and a charge / discharge control method.

In order to achieve the above object, the charge / discharge control device according to the first aspect of the present invention comprises:
Charging control for charging the storage battery with power generated using natural energy or power supplied from the power system, and discharge permission control for permitting discharge of the storage battery to supply power to an electrical device or electrical facility; A charge / discharge control device for performing
Information acquisition means for acquiring information indicating a sign of a power outage and information indicating a storage amount of the storage battery;
Predicting means for predicting the occurrence time of the power outage based on the sign represented by the acquired information;
Based on the sign represented by the acquired information, the degree of urgency indicating how urgently the power to be supplied to the storage battery needs to be charged during the power failure to the electrical equipment or the electrical facility is indicated. A calculation means for calculating;
Control means for performing any one or more of the charge control and the discharge permission control on the storage battery according to the calculated degree of urgency,
The calculation means includes a grace time until the predicted occurrence of power outage with respect to a charging time required to increase the storage amount of the storage battery from the storage amount represented by the acquired information to a predetermined target storage amount. The smaller the ratio, the higher the degree of urgency,
When the calculated urgency level is low, the control means performs the discharge permission control over a longer period than when the calculated urgency level is high.
In order to achieve the above object, a charge / discharge control device according to a second aspect of the present invention is:
Charging control for charging the storage battery with power generated using natural energy or power supplied from the power system , and discharge permission control for permitting discharge of the storage battery to supply power to an electrical device or electrical facility ; A charge / discharge control device for performing
An information acquisition means for acquiring information indicating a sign of a power outage;
Based on the sign represented by the acquired information, it is an index showing how urgently it is necessary to charge the storage battery with the power supplied to the electrical equipment or the electrical equipment during a power failure A calculation means for calculating the degree of urgency;
Control means for performing any one or more of the charge control and the discharge permission control on the storage battery according to the calculated degree of urgency.

  According to the charging / discharging control device, the charging / discharging control program, and the charging / discharging control method according to the present invention, it is possible to accumulate electric power in a storage battery in preparation for a power failure while suppressing an increase in running cost of an electrical device or electrical equipment. .

It is a block diagram showing an example of the charging / discharging system comprised with the charging / discharging control apparatus which concerns on Embodiment 1 of this invention. It is a hardware block diagram showing the example of 1 structure of a charging / discharging control apparatus. It is a flowchart showing an example of the charging / discharging control process which the charging / discharging control apparatus which concerns on Embodiment 1 performs. It is a functional block diagram showing an example of the function which the charging / discharging control apparatus which concerns on Embodiment 1 has. It is a figure showing an example of an urgency level table. It is a figure showing an example of the control table in Embodiment 1. FIG. It is a figure showing an example of an execution frequency table. It is a figure for demonstrating an example of the conditional discharge permission control performed when a storage battery is fully charged by the urgency level. It is a figure for demonstrating an example of the conditional discharge permission control performed when a storage battery is non-full charge with the urgency level. It is a flowchart showing an example of the charging / discharging control process which the charging / discharging control apparatus which concerns on Embodiment 2 performs. It is a functional block diagram showing an example of the function which the charging / discharging control apparatus which concerns on Embodiment 2 has. It is a figure showing an example of a schedule table. It is a figure showing an example of the control table in Embodiment 2. It is a figure for demonstrating an example of control performed when a storage battery can be fully charged by the time of a power failure even if an electric vehicle is used. It is a figure for demonstrating an example of the control performed when an electric vehicle is used and a storage battery can be fully charged by the time of a power failure even if it discharges a storage battery. It is a figure for demonstrating an example of the control performed when a storage battery cannot be fully charged by the time of a power failure when an electric vehicle is used. It is a figure for demonstrating the other example of control performed when a storage battery cannot be fully charged by the time of a power failure when an electric vehicle is used.

<Embodiment 1>
Hereinafter, the charge / discharge control apparatus 190 according to Embodiment 1 of the present invention will be described with reference to the accompanying drawings.

  The charge / discharge control device 190 according to the present embodiment configures the charge / discharge system 1 as shown in FIG. 1 and controls charging and discharging of the storage battery 220 mounted on the electric vehicle R. The storage battery 220 is not necessarily mounted on the electric vehicle R, and may be a stationary type, for example.

  The charge / discharge system 1 is installed in a house H, and includes a photovoltaic power generation module 110, a power conditioner 120, a distribution board 130, an electric device 140, and an electric facility 150 in addition to the charge / discharge control device 190.

  The photovoltaic power generation module 110 is a photovoltaic power generation device that converts light energy into electric power. The electric power generated by the solar power generation module 100 is supplied to the power conditioner 120 through the power line L1. The charging / discharging system 1 may include a power generation module that generates electric power using natural energy such as wind power, geothermal heat, or tidal power instead of the solar power generation module 110.

  The power conditioner 120 is connected to the photovoltaic power generation module 110 via the power line L1, and is connected to the distribution board 130 via the power lines L2a and L2b. The power conditioner 120 is a charging / discharging not shown. It is connected to the charging / discharging device 210 mounted on the electric vehicle R via a power line L2c constituting the cable.

  The power conditioner 120 sets the mode of the charging / discharging device 210 mounted on the electric vehicle R to the storage battery 220 when the generated power of the solar power generation module 110 is larger than the total power consumption of the electric device 140 and the electric facility 150. Then, after switching to the charging mode in which charging is performed, surplus power of the photovoltaic power generation module 110 is supplied to the charging / discharging device 210.

  On the other hand, when the power generation power of the solar power generation module 110 is less than the total power consumption of the electrical equipment 140 and the electrical equipment 150, when a signal indicating that discharge is permitted is acquired from the charging / discharging device 210, The power conditioner 120 switches the mode of the charging / discharging device 210 to a discharge mode for discharging the storage battery 220, and then supplies the power discharged from the storage battery 220 to the electrical equipment 140 and the electrical equipment 150 via the distribution board 130. To do.

  That is, the charge / discharge system 1 accumulates the surplus power of the solar power generation module 110 in the storage battery 220 when the generated power of the solar power generation module 110 becomes larger than the total power consumption of the electric device 140 and the electric facility 150. When the generated power of the power generation module 110 is less than the total power consumption of the electric device 140 and the electric facility 150, the electric power generated by the discharge of the storage battery 220 is supplied to the electric device 140 and the electric facility 150. In this way, the charging / discharging system 1 reduces the running cost of the electric device 140 and the electric facility 150 (that is, the electricity cost for the electric power supplied from the electric power system).

  In addition, even when the generated power of the solar power generation module 110 is less than the total power consumption of the electric device 140 and the electric facility 150, a signal indicating that the charging / discharging device 210 is in the charging mode is sent from the charging / discharging device 210. When acquired, the power conditioner 120 supplies the power supplied from the power system via the distribution board 130 to the charging / discharging device 210.

  Further, even when the generated power of the photovoltaic power generation module 110 is less than the total power consumption of the electric equipment 140 and the electric equipment 150, a signal indicating that the charging / discharging device 210 is suppressed from discharging / discharging. When acquired from the device 210, the power conditioner 120 does not set the charging / discharging device 210 to the discharge mode, and supplies the electric device 140 and the electric facility 150 with the electric power supplied from the power system.

  Thus, the charge / discharge system 1 suppresses the discharge of the storage battery 220 with respect to the charge / discharge device 210 or causes the storage battery 220 to charge the power supplied from the power system to the charge / discharge device 210. Control is performed so that the amount of electricity stored in the storage battery 220 does not fall below the minimum amount of electricity stored. This is to maintain the electric vehicle in a usable state or to secure the power supplied to the electric device 140 and the electric facility 150 at the time of a power failure.

  The distribution board 130 distributes the electric power supplied from the power conditioner 120 via the power line L2a to the electric device 140 and the electric facility 150. In addition, the distribution board 130 distributes the power supplied from the power system through the power line L3 to the power conditioner 120, the electric device 140, and the electric facility 150.

  The electric device 140 includes, for example, a rice cooker, a microwave oven, a dryer, a vacuum cleaner, a washing machine, and a television. The electrical equipment 150 includes, for example, lighting, a ventilation fan, an air conditioner, and an induction heating (IH) cooking heater.

  The charging / discharging control device 190 is connected to the charging / discharging device 210 of the electric vehicle R via a communication cable constituting the charging / discharging cable, and also connected to the server 300 via a computer communication network (hereinafter simply referred to as a communication network) 10. To do. The charge / discharge control device 190 receives the sign information indicating the sign of a power failure from the server 300, and controls the charge / discharge device 210 so as to charge the storage battery 220 of the electric vehicle R based on the received sign information; Discharge permission control which permits the charging / discharging apparatus 210 to discharge the storage battery 220 is performed.

  Here, since a power failure may occur due to a disaster, the sign of a power failure includes a sign that a disaster will occur. Disasters include weather disasters and earthquake disasters. Meteorological disasters include floods, wind damage, salt damage, heavy rain disasters, and landslide disasters caused by typhoons, cyclones, or natural phenomena such as passing fronts and the occurrence of thunderstorms. For this reason, a sign that a power outage will occur in a certain region includes the occurrence of a natural phenomenon or a natural phenomenon such as the passage of a typhoon or the occurrence of a thunderstorm that may cause a natural disaster in that region.

  That is, the predictor information includes information indicating a region where a natural phenomenon that may cause a disaster occurs and a region and time when a natural phenomenon is expected to occur. Specifically, the predictor information includes typhoon information indicating the position of the typhoon, the region expected to be included in the storm region of the typhoon, and the time when the region is expected to be included in the storm region. The predictive information includes thunderstorm information indicating an area where a thunderstorm is expected to occur and a time when the thunderstorm is expected to occur (hereinafter referred to as an expected thunderstorm occurrence time).

  In addition, the natural phenomenon of an earthquake occurs in a swarm or is caused by a volcanic eruption. For this reason, a sign of a power outage in a certain area is that a natural phenomenon such as a swarm earthquake or volcanic eruption that may cause an earthquake disaster in that area occurs in that area or a predetermined range from that area. including.

  In other words, the predictor information includes information indicating the region and time of occurrence of a natural phenomenon that may cause a disaster. Specifically, the predictor information includes earthquake information indicating a region where the earthquake swarm occurred, a time when the earthquake occurred, and a change in the occurrence frequency of the swarm earthquake.

  The charge / discharge control device 190 includes a CPU (Central Processing Unit) 190a, a ROM (Read Only Memory) 190b, a RAM (Random Access Memory) 190c, a hard disk 190d, a first communication circuit 190f, and a second communication circuit as shown in FIG. 190g, LCD (Liquid Crystal Display) 190i, and operation buttons 190j.

  The CPU 190a performs overall control of the charge / discharge control device 190 by executing software processing in accordance with a program stored in the ROM 190b or the hard disk 190d. The RAM 190c temporarily stores information (that is, data) to be processed when the CPU 190a executes the program.

  The hard disk 190d stores a table (that is, a table) that stores various types of information (that is, data). The charge / discharge control device 190 may include a flash memory instead of the hard disk 190d.

  The first communication circuit 190f communicates data with the charge / discharge device 210 connected via the charge / discharge cable. The second communication circuit 190 g communicates data with the server 100 connected via the communication network 10.

  The LCD 190i performs display according to the signal output from the CPU 190a. The operation button 190j inputs a signal corresponding to a user operation.

  The CPU 190a of the charge / discharge control device 190 shown in FIG. 2 functions as a power failure occurrence prediction unit 193 and an emergency level calculation unit 194 as shown in FIG. 4 by executing the charge / discharge control process of FIG. It functions as the information storage unit 191 by cooperating. The CPU 190a functions as the information acquisition unit 192 by cooperating with the first communication circuit 190f, and functions as the control unit 195 by cooperating with the second communication circuit 190g.

  Before describing the charge / discharge control process of FIG. 3, a table used in the charge / discharge control process will be described with reference to FIGS. 5 to 7.

  The information storage unit 191 stores an urgency level table as shown in FIG. In the urgency level table, there is a possibility information indicating the possibility of a power outage (hereinafter referred to as the possibility of a power outage), ratio information indicating the size of the T2 / T1 ratio, and the possibility of a power outage The size is represented by possibility information, and is stored in association with urgency information indicating the level of urgency when the T2 / T1 ratio is the size represented by the ratio information. .

  Here, the magnitude of the possibility of power outage is represented by whether it is large, medium, or small (hereinafter referred to as “large”, “medium”, and “small”, respectively). The possibility of a power outage being “large”, “medium”, and “small” means that the probability of power outage satisfies the following formulas (1) to (3).

Power outage probability ≧ threshold value A (1)
Threshold A> Power failure occurrence probability ≥ Threshold B (2)
Threshold B> Power failure occurrence probability (3)

  Further, the T2 / T1 ratio refers to a grace period T2 until a period during which a power failure occurs with respect to the charging time T1 required for the storage amount of the storage battery 220 to reach the target storage amount (hereinafter referred to as a power failure occurrence prediction period). A ratio. The target power storage amount is a power storage amount that is larger than the above-described minimum power storage amount, and is stored in the storage battery 220 in order to supply power to the electric device 140 and the electric facility 150 in the event of a power failure. In the present embodiment, the target power storage amount is described as being a full charge amount, but the present invention is not limited to this, and those skilled in the art can determine a suitable target power storage amount through experiments.

  The magnitude of the T2 / T1 ratio is represented by whether it is large, medium or small. Here, when the T2 / T1 ratio is large, T2 is longer than T1, and hence the T2 / T1 ratio is hereinafter referred to as “long”. Similarly, when the T2 / T1 ratio is medium, the T2 / T1 ratio is said to be “medium”, and when the T2 / T1 ratio is small, the T2 / T1 ratio is said to be “short”. Specifically, that the T2 / T1 ratio is “long”, “medium”, and “short” means that the T2 / T1 ratio satisfies the following equations (4) to (6), respectively.

T2 / T1 ratio ≧ threshold value C (4)
Threshold value C> T2 / T1 ratio ≧ Threshold value D (5)
Threshold value D> T2 / T1 ratio (6)

  The degree of urgency is an index indicating how urgently the electric power supplied to the electric device 140 or the electric facility 150 needs to be stored in the storage battery 220, and the more urgent the higher the degree of urgency. Indicates that the battery needs to be charged. Further, the high degree of urgency is represented by high, medium, and low (hereinafter referred to as “high”, “medium”, and “low”). The urgency levels “high”, “medium”, and “low” mean that the urgency levels satisfy the following expressions (7) to (9), respectively.

Urgency ≥ threshold E ... (7)
Threshold E>urgency> threshold F (8)
Threshold value F> Urgency level (9)

  However, information representing the threshold value A to the threshold value F is stored in the information storage unit 191 in advance. In the present embodiment, the threshold C is assumed to be the value “2” and the threshold D is assumed to be the value “1”. However, the present invention is not limited to this, and a person skilled in the art can determine a suitable value by experiment. it can. Similarly, those skilled in the art can determine suitable values for threshold A and threshold B and threshold E and threshold F by experiment.

  Here, the height of the urgency level represented by “high”, “medium”, and “low” is the urgency level calculated based on the value of the T2 / T1 ratio and the probability of occurrence of power failure. To (8) may be determined, or the ratio T2 / T1 represented by “long”, “medium”, and “short” as shown in the urgency table of FIG. And the magnitude of the possibility of power outage represented by “large”, “medium”, and “small”. In the urgency level table of FIG. 5, if the rows are the same (that is, if the expressed T2 / T1 ratio is the same), the higher the urgency level is, the more the position that intersects the column indicating the possibility of occurrence of a power failure. Is stored. In addition, if the columns are the same (that is, if the possibility of occurrence of a power failure is the same), information indicating a higher degree of urgency is stored at a position intersecting with a row indicating a smaller T2 / T1 ratio. .

  The information storage unit 191 stores a control table as shown in FIG. In the control table, urgency information indicating the level of urgency and whether the storage amount of the storage battery 220 is the target storage amount (full charge amount in the present embodiment) or not the full charge amount (hereinafter referred to as non-full charge). Storage amount information indicating the amount)), mode information indicating the mode of the charging / discharging device 210, and the urgency is a height represented by the urgency information, and the storage amount of the storage battery 220 is represented by the storage amount information. Is stored in association with control information representing the control content executed when the mode of the charge / discharge device 210 is the mode represented by the mode information. The charging / discharging device 210 includes a charging mode, a discharging mode, and a storage mode in which neither discharging nor charging is performed.

  Specifically, the urgency information indicating that the urgency is “high”, the storage amount information indicating that the storage amount is the full charge amount, and the charging / discharging device 210 so as to suppress the discharge of the storage battery 220. Is associated with control information indicating that the control is performed (hereinafter referred to as discharge suppression control). This is because the power stored in the storage battery 220 is maintained at the full charge amount to ensure the maximum amount of power supplied to the electric device 140 and the electric facility 150 at the time of a power failure.

  Further, the urgency information indicating that the urgency is “high”, the storage amount information indicating that the storage amount is a non-full charge amount, and the mode indicating that the mode of the charging / discharging device 210 is the charge mode. The information is associated with control information indicating that charging / discharging device 210 is controlled so as to continue the charging mode (hereinafter referred to as charging mode continuation control). This is because power is accumulated in the storage battery 220 as much as possible before the occurrence of a power failure by continuing the charging mode.

  Furthermore, the urgency information indicating that the urgency is “high”, the storage amount information indicating that the storage amount is a non-full charge amount, and the mode of the charge / discharge device 210 is the storage mode or the discharge mode. Control information indicating that charge mode continuation control is performed after the charge / discharge device 210 is controlled to switch the mode of the charge / discharge device 210 to the charge mode (hereinafter referred to as charge mode switching control). It is associated. This is to cause the charging / discharging device 210 to stop discharging the storage battery 220 and to start charging the storage battery 220 so that power can be stored in the storage battery 220 as much as possible before the occurrence of a power failure.

  Furthermore, the urgency information indicating that the urgency is “medium”, the storage amount information indicating that the storage amount is the full charge amount, and the storage amount of the storage battery 220 by the full charge amount before the power failure occurrence prediction period Control information representing control (hereinafter referred to as conditional discharge permission control) that permits discharge to the charging / discharging device 210 when the condition that it is possible is satisfied is associated.

  Similarly, the urgency information indicating that the urgency is “medium”, the storage amount information indicating that the storage amount is a non-full charge amount, and the mode of the charge / discharge device 210 is the storage mode or the discharge mode. The mode information indicating that is associated with the control information indicating the conditional discharge permission control. These are for securing the user merit of the electricity cost reduction effect by discharging the storage battery 220 while accumulating the power supplied to the electric device 140 and the electric facility 150 at the time of the power failure in the storage battery 220 by the power failure occurrence prediction period. .

  Further, the urgency information indicating that the urgency is “medium”, the storage amount information indicating that the storage amount is a non-full charge amount, and the mode indicating that the mode of the charging / discharging device 210 is the charge mode. Information is associated with control information indicating charge mode continuation control. This is because when the mode of the charging / discharging device 210 is the charging mode, the generated power of the photovoltaic power generation module 110 is larger than the total power consumption of the electric device 140 and the electric facility 150, and the storage battery 220 needs to be discharged. Because it is scarce.

  Furthermore, the urgency level information indicating that the urgency level is “low” and the control information indicating the normal time control for controlling the charging / discharging device 210 to be charged / discharged according to the control of the power conditioner 120 are associated with each other. ing.

  That is, when the urgency level is “high”, the discharge is suppressed (that is, discharge suppression control is performed), and when the urgency level is “medium”, the discharge is permitted only when the above condition is satisfied (that is, Conditional discharge permission control is performed), and when the urgency level is “low”, discharge is permitted regardless of the above conditions (that is, normal time control is performed). Discharge control is performed throughout.

  The information storage unit 191 stores an execution frequency table as shown in FIG. In the execution frequency table, information indicating the magnitude of the possibility of power failure, information indicating the frequency of execution of the control content stored in FIG. 6 (hereinafter referred to as execution frequency), and execution interval (hereinafter referred to as execution) And information indicating (interval) are stored in association with each other. In the execution frequency table, information indicating a greater possibility of occurrence of a power failure is associated with information indicating a higher execution frequency and information indicating a shorter execution interval. This is because the greater the possibility of a power failure, the higher the calculated urgency level, and the higher the urgency level, the more control is performed to suppress the discharge of the storage battery 220 for a longer time, resulting in a decrease in user merit. In other words, the greater the possibility of power failure, the shorter the execution interval of the control, so if the possibility of power failure changes, the control that may lower the user merit in a shorter time is finished, and after the change This is to start control according to the possibility of power failure.

  When the charge / discharge control process of FIG. 3 is started, the information acquisition unit 192 of FIG. 4 acquires predictive information from the server 300 of FIG. 1 (step S01). Next, the power failure occurrence prediction unit 193 of FIG. 4 determines whether the magnitude of the power failure occurrence possibility is “large”, “medium”, or “small” based on the sign information acquired in step S01. Specify (step S02).

  Specifically, the power failure occurrence prediction unit 193 reads information representing a position where the charge / discharge control device 190 is installed (hereinafter referred to as an installation position) from the information storage unit 191. Next, if the acquired sign information is typhoon information, the probability of a power outage is calculated based on the sign information so that the possibility of a power outage decreases as the distance between the installation position and the typhoon position increases. To do.

  In addition, when the acquired sign information is thunderstorm information, the power failure occurrence prediction unit 193 can generate a power outage as the distance between the installation position and the region where thunderstorms are expected to occur is longer based on the sign information. The probability of blackout occurrence is calculated so that

  Furthermore, when the acquired sign information is earthquake information, the power failure occurrence prediction unit 193 determines the installation position and the area where the swarm earthquake occurred (hereinafter referred to as an earthquake occurrence area) based on the sign information. The probability of the occurrence of a power failure is calculated so that the possibility of a power failure will decrease as the distance increases. Moreover, it is not necessarily limited to this, The power failure generation | occurrence | production prediction part 193 may calculate a power failure generation | occurrence | production probability so that a possibility of a power failure generation may become so large that the occurrence frequency of a swarm earthquake increases. Furthermore, the power failure occurrence prediction unit 193 may calculate the possibility of power failure occurrence based on both the distance between the installation position and the earthquake occurrence area and the occurrence frequency of the swarm earthquake.

  After step S02, the power failure occurrence prediction unit 193 predicts a power failure occurrence time based on the sign information (step S03). Specifically, when the sign information acquired in step S01 is typhoon information, the power failure occurrence prediction unit 193 determines the time when the installation position of the charge / discharge control device 190 is expected to be included in the storm region. The power outage is predicted to occur.

  Further, when the sign information is thunderstorm information, the power failure occurrence prediction unit 193 sets the time when the occurrence of the thunderstorm is expected as the power failure occurrence prediction time. Further, when the sign information is earthquake information, the power failure occurrence prediction unit 193 acquires the system time from, for example, an OS (Operating System), and after a predetermined time (for example, 12 hours or 24 hours later) is set as the start time of the predicted power outage. Note that information representing the predetermined time is stored in advance in the information storage unit 191, and a suitable value for the predetermined time can be determined by experiments by those skilled in the art.

  After step S03, the information acquisition unit 192 in FIG. 4 acquires storage amount information representing the storage amount of the storage battery 220 from the charge / discharge device 210 in FIG. 1 (step S04). The charging / discharging device 210 may specify the amount of electricity stored in the storage battery 220 based on, for example, the voltage across the terminals of the storage battery 220.

  After step S04, the urgency calculator 194 calculates the charging time T1 based on the stored power amount information (step S05). Specifically, the urgency calculation unit 194 reads information representing the charging power of the storage battery 220 by the power conditioner 120 from the information storage unit 191. Next, the urgency calculation unit 194 reads information representing the storage capacity (that is, the full charge amount) of the storage battery 220 from the information storage unit 191. Thereafter, when the urgency calculation unit 194 charges the storage battery 220 with the charging power represented by the read information, the storage amount (that is, the remaining amount) represented by the storage amount information acquired in step S04. The charging time T1 required to increase the storage amount from the target storage amount (that is, the storage capacity) to the target storage amount is calculated using the following equation (10).

  Charging time T1 = (storage capacity−remaining capacity) / charging power (10)

  After step S05, the urgency calculating unit 194 acquires the system time from the OS, and calculates the time from the acquired system time to the start time of the power failure occurrence time as a grace period T2 (step S06).

  Thereafter, the urgency calculator 194 calculates the ratio of the grace period T2 calculated in step S06 to the charging time T1 calculated in step S05 (that is, the T2 / T1 ratio). Next, the urgency level calculation unit 194 specifies the calculated length of T2 / T1 (that is, “long”, “medium”, and “short”) from the urgency level table of FIG. 5 in step S02. The degree of urgency is calculated based on the magnitude of the possibility of power failure occurring (“large”, “medium”, and “small”) (step S07). As a specific example, the urgency calculator 194 indicates that the T2 / T1 ratio is “short” when the T2 / T1 ratio is “short” and the possibility of a power outage is “large”. “High” represented by information stored at a position where a row intersects with a column indicating that the possibility of a power outage is “large” is defined as a high degree of urgency.

  Next, the information acquisition part 191 acquires the mode information showing the mode of the charging / discharging apparatus 210 from the charging / discharging apparatus 210 of the electric vehicle R (step S08). Thereafter, the control unit 195, from the control table of FIG. 6, urgency information indicating the level of urgency calculated in step S07, power storage amount information acquired in step S04, and mode acquired in step S08 The information stored in association with the information is acquired, and the control content represented by the acquired information is determined as the control content (hereinafter referred to as power storage control content) to be performed on the storage battery 220 (step S09).

  Next, the control unit 195 acquires information stored in the row indicating the magnitude of the degree of urgency calculated in step S07 in the execution frequency table of FIG. 7, and sets the execution interval represented by the acquired information. Let it be an interval for predicting the occurrence of a power failure (hereinafter referred to as a power failure occurrence prediction interval). Thereafter, the control unit 195 obtains the system time from the OS, and until the time after the power failure occurrence prediction interval from the system time, until the time when the power failure occurrence predicted in step S03 ends, and when the power failure actually occurs. The storage period 220 is controlled with the storage control content determined in step S09 until the control period is set to the earliest time until the end of the time (step S10). Thereafter, the above process is repeated from step S01.

  Next, the condition executed in step S10 when the degree of urgency calculated in step S07 in FIG. 3 is “medium” and the stored amount of electricity represented by the information acquired in step S04 is a full charge amount. An example of attached discharge permission control will be described with reference to FIG.

  At the time tn, when the conditional discharge permission control is started, the control unit 195 calculates a time ts ′ that is a predetermined margin time Tm before the start time ts of the power failure occurrence prediction time. Note that information representing the margin time Tm is stored in advance in the information storage unit 191, and those skilled in the art can determine a suitable value for the margin time Tm by experiment.

  Next, when charging is continued from time tn, the control unit 195 calculates the charged amount Cn that is just the full charged amount at time ts ′ based on the charging power represented by the information read in step S05. . Thereafter, the control unit 195 calculates a straight line lm connecting the point Pn determined by the time tn and the charged amount Cn and the point Pf determined by the time ts ′ and the full charge amount Cf.

  Next, the control unit 195 performs discharge permission control for permitting the charging / discharging device 210 to discharge the storage battery 220 from time tn to time tc when the storage amount of the storage battery 220 falls below the straight line lm for the first time. This is because as long as the charged amount exceeds the straight line lm, the charged amount of the storage battery 220 can be increased to the fully charged amount by the time ts. In the example of FIG. 8, since the generated power of the photovoltaic power generation module 110 is less than the total power consumption of the electrical equipment 140 and the electrical equipment 150 between time tn and time tc, the power conditioner 120 of FIG. The discharge device 210 is controlled to the discharge mode, and the storage battery 220 is discharged.

  Further, at time tc, control unit 195 performs charging mode switching control for switching the mode of charging / discharging device 210 to the charging mode, and then until charging amount of storage battery 220 reaches a full charging amount, charging / discharging device 210. The charging mode continuation control (that is, charging control) for maintaining the mode in the charging mode is performed. This is because the storage amount of the storage battery 220 is increased to the full charge amount by the time ts.

  After that, when the storage amount of the storage battery 220 reaches the full charge amount (that is, from the time ts ′), the control unit 195 performs discharge suppression control that suppresses the discharge of the storage battery 220 by the charge / discharge device 210 until the control period ends. Do. This is to maintain the state in which the electric power supplied to the electric device 140 and the electric facility 150 is stored in the storage battery 220 to the maximum when a power failure occurs.

  Next, the degree of urgency calculated in step S07 in FIG. 3 is “medium”, the amount of power stored in the information acquired in step S04 is a non-full charge amount, and the information acquired in step S08 An example of conditional discharge permission control executed in step S10 when the represented mode is the power storage mode will be described with reference to FIG.

  In the same manner as described above, the control unit 195 calculates a time ts ′ that is a margin time Tm before the start time ts of the power failure occurrence prediction time, and calculates a storage amount Cn. Thereafter, the control unit 195 calculates a straight line lm connecting the point Pn determined by the time tn and the charged amount Cn and the point Pf determined by the time ts ′ and the full charge amount Cf.

  Next, similarly to the above, the control unit 195 performs the discharge permission control from the time tn to the time tc when the charged amount of the storage battery 220 first falls below the straight line lm. In the example of FIG. 9, since the generated power of the photovoltaic power generation module 110 exceeds the total power consumption of the electric equipment 140 and the electric equipment 150 between time tn and time tp, charging / discharging is performed by the power conditioner 120 of FIG. The device 210 is controlled to the charging mode, and the storage battery 220 is charged. Thereafter, between time tp and time tc, the generated power of the solar power generation module 110 is lower than the total power consumption of the electric equipment 140 and the electric equipment 150, and therefore the power conditioner 120 causes the charging / discharging device 210 to enter the discharge mode. Controlled, the storage battery 220 is discharged.

  Thereafter, at time tc, control unit 195 performs charge mode continuation control until charge amount of storage battery 220 reaches a full charge amount after performing charge mode switching control as described above. Next, from time ts ′ when the storage amount of the storage battery 220 reaches the full charge amount, the control unit 195 performs discharge suppression control until the control period ends.

  According to these configurations, since one or more of the control for charging the storage battery 220 and the discharge permission control are performed on the charge / discharge device 210 according to the degree of urgency, the electric device 140 and the electric facility 150 are more than conventional. Electric power can be stored in the storage battery 220 in preparation for a power failure while suppressing an increase in running cost (that is, electricity bill). In addition, the storage capacity of the storage battery 220 necessary for reliably storing the power supplied to the electrical device 140 and the electrical facility 150 in the event of a power failure in the storage battery 220 while allowing the discharge of the storage battery 220 can be made smaller than before. For this reason, the manufacturing cost of the charging / discharging system 1 can be reduced.

  According to these configurations, when the urgency level is “low”, the discharge permission control is performed over a longer period than when the urgency level is “high”. For this reason, since electric power generated using natural energy can be supplied to the electric device 140 and the electric facility 150 more than before, the electric power can be supplied to the storage battery 220 more reliably than before, in preparation for a power failure. And the increase in the running cost in the electric equipment 150 can be suppressed.

  Further, according to these configurations, the ratio of the grace time T2 until the power failure occurrence prediction time with respect to the charging time T1 required to increase the stored amount of the storage battery 220 to a predetermined target stored amount (full charge amount in the present embodiment). The smaller the value is, the higher the degree of urgency is calculated. Therefore, it is possible to accumulate power more reliably than in the past in preparation for a power failure.

  Moreover, according to these structures, since the urgency is calculated so low that the possibility that a power failure will occur is low, the discharge permission control is performed over a longer period. For this reason, since it is the electric power generated using natural energy and the electric power stored in the storage battery 220 can be discharged for a longer period of time, the running cost in the electric device 140 and the electric facility 150 is increased compared to the conventional case. Can be suppressed.

  Furthermore, according to these configurations, the discharge permission control is performed in a period in which it is determined that the amount of electricity stored in the storage battery 220 can be increased to the target amount of electricity stored (the fully charged amount in the present embodiment) by the predicted occurrence of power failure. Therefore, electric power can be more reliably accumulated in the storage battery 220 than in the past in preparation for a power failure while suppressing an increase in running cost due to the discharge of the storage battery 220.

<Embodiment 2>
Next, the charge / discharge control apparatus 590 which concerns on Embodiment 2 of this invention is demonstrated. The charge / discharge control device 590 according to the second embodiment has the same configuration and function as the charge / discharge control device 190 according to the first embodiment. For this reason, the description which overlapped with Embodiment 1 is abbreviate | omitted.

  The charge / discharge control device 590 performs a charge / discharge control process as shown in FIG. 10, whereby an information storage unit 591, an information acquisition unit 592, a power failure occurrence prediction unit 593, and an emergency level calculation unit 594 as shown in FIG. 11. In addition to the control unit 595, it functions as a schedule management unit 596. The CPU of the charge / discharge control device 590 functions as the information display unit 597 in cooperation with the LCD of the charge / discharge control device 590. The information storage unit 591, the information acquisition unit 592, the power outage occurrence prediction unit 593, the emergency level calculation unit 594, and the control unit 595 are the information storage unit 191, the information acquisition unit 192, the power outage occurrence prediction unit 193 described in the first embodiment, Since it is the same as that of the emergency degree calculation part 194 and the control part 195, the overlapping description is abbreviate | omitted.

  The information storage unit 591 stores a schedule table as shown in FIG. The schedule table includes information indicating a scheduled date for using the electric vehicle R, information indicating a scheduled time for starting use (hereinafter referred to as a scheduled start time for use), and a scheduled time for terminating use (hereinafter referred to as a scheduled end date for use). Schedule information in which information representing time), information representing a planned destination, and information representing a planned travel distance are associated with each other.

  Further, the information storage unit 591 stores a control table as shown in FIG. In the control table, as in the control table of the first embodiment shown in FIG. 6, the urgency level information, the power storage amount information, the mode information, and the urgency level are heights represented by the urgency level information. The control content (that is, power storage control) for the storage battery executed when the power storage amount of the storage battery 220 is the power storage amount represented by the power storage amount information and the mode of the charge / discharge device 210 is the mode represented by the mode information. Content) and control information representing control content (hereinafter referred to as display control content) for the information display unit 597 are stored in association with each other.

  Specifically, urgent level information indicating that the urgency level is “high” and a control for displaying on the information display unit 597 a message prompting to suppress the use of the electric vehicle R (hereinafter referred to as use suppression display control). ) Are associated with each other. This is to suppress the use of the electric vehicle R, to maintain the amount of power stored in the storage battery 220 as a fully charged amount, and to secure the maximum amount of power supplied to the electric device 140 and the electric facility 150 during a power failure. .

  Further, the urgency level information indicating that the urgency level is “medium” and the control information indicating the conditional use suppression display control are associated with each other. This conditional use suppression display control is a condition that even if the electric vehicle R is used as scheduled by the power failure occurrence prediction period, the amount of charge of the storage battery 220 can be set to the full charge amount by the power failure occurrence prediction period. When the above condition is satisfied, a message permitting the use of the electric vehicle R is displayed on the information display unit 597, and when the condition is not satisfied, a message prompting to suppress the use of the electric vehicle R or the use of the electric vehicle R Control that causes the information display unit 597 to display a message that prompts the user to shorten the time or travel distance.

  When the charge / discharge control process of FIG. 10 is started, the charge / discharge control device 590 executes the same process as the process of step S01 to step S08 of FIG. 3 (step S21 to step S28). Next, the control unit 595 acquires, from the control table in FIG. 13, urgency information indicating the level of urgency calculated in step S27, power storage amount information acquired in step S24, and step S28. The information stored in association with the mode information is acquired, and the control content represented by the acquired information (that is, the power storage control content and the display control content) is determined as the control content to be performed on the storage battery 220 ( Step S29).

  Next, control unit 595 controls storage battery 220 with the storage control content determined in step S29 until the control period ends, and also controls information display unit 597 with the display control content determined in step S29 ( Step S30). Thereafter, the above process is repeated from step S21.

  Next, an example of the conditional display control executed in step S30 when the urgency level calculated in step S27 in FIG. 10 is “medium” will be described with reference to FIG.

  At the time tn, when the conditional display control is started, the control unit 195 calculates a time ts ′ that is a predetermined margin time Tm before the start time ts of the power failure occurrence prediction time.

  Here, when the control unit 595 starts the conditional display control, the schedule management unit 596 in FIG. 11 responds to a signal output from the control unit 595, and the electric vehicle R between the system time and the predicted power failure occurrence time. The schedule information representing the schedule to use is retrieved from the schedule table of FIG.

  After that, the control unit 595 acquires the scheduled use end time tse of the electric vehicle R represented by the searched schedule information. Next, when charging is continued from the scheduled end-of-use time tse, the control unit 595 calculates a storage amount Cn1 that is just a full charge amount at time ts ′ based on the charge power, and the time tse and the storage amount Cn1 are calculated. The point determined by is defined as point Pe.

  Control unit 595 also predicts a reduction in the amount of power stored in storage battery 220 caused by use of electric vehicle R based on the schedule information. As a specific example, the control unit 595 reads information representing the average discharge amount per unit time stored in advance in the information storage unit 591, and uses the read average discharge amount and the scheduled use time represented by the schedule information. (In other words, by using (expected usage end time−scheduled usage start time)) in the following equation (11), a reduction amount (discharge amount) of the charged amount is predicted.

  Discharge amount [kWh] = Average discharge amount per unit time [kWh / h] × Expected use time [h] (11)

  As another specific example, the control unit 595 reads information indicating the average discharge amount per unit distance stored in the information storage unit 591 in advance, and is represented by the read average discharge amount and schedule information. Is used in the following formula (12) to predict a reduction amount (discharge amount) of the charged amount.

  Discharge amount [kWh] = Average discharge amount per unit distance [kWh / km] × Scheduled travel distance [km] (12)

  The planned travel distance may be a round trip distance from the installation position of the charge / discharge control device 590 to the destination represented by the schedule information. In addition, the information indicating the average discharge amount per unit time and the information indicating the average discharge amount per unit distance may be set in advance by the user, or information indicating the use record of the electric vehicle (that is, the use time and the use amount). The charging / discharging control device 590 may learn based on a plurality of information associated with changes in the amount of power stored in the storage battery 220 before and after time.

  Next, the control unit 595 calculates a power storage amount Cn2 obtained by adding the predicted reduction amount (discharge amount) of the power storage amount to the power storage amount Cn1, and determines a point determined by the time tss and the power storage amount Cn2. And

  Thereafter, when charging is continued from system time tn, control unit 595 calculates storage amount Cn3 that is just stored storage amount Cn2 at scheduled use start time tss based on the charge power, and at time tn and storage amount Cn3, Let the fixed point be the point Pn.

  Next, the control unit 595 calculates a broken line ln connecting the point Pn, the point Ps, the point Pe, and the point Pf, and when the storage battery 220 has a larger amount of charge than the calculated broken line ln, the electric vehicle R It is determined that the stored power amount of the storage battery 220 can be increased to the target stored power amount (full charge amount in the present embodiment) by the time ts ′ even if is used.

  If it is determined that the storage amount of the storage battery 220 can be increased to the full charge amount, the control unit 595 controls the information display unit 597 of FIG. 11 to display that the use of the electric vehicle R is permitted. . In addition, control unit 595 performs discharge permission control for allowing charging / discharging device 210 to discharge storage battery 220.

  For this reason, as shown in FIG. 15, from time tn to time tss and from time tse to time tc2, the storage amount of the storage battery 220 exceeds the broken line ln, so discharge permission control is performed. Here, from the time tn to the time tss, the generated power of the solar power generation module 110 is larger than the total power consumption of the electric device 140 and the electric facility 150, and thus the storage battery 220 is not discharged. Similarly, from time tse to time tc1, since the generated power of the solar power generation module 110 is larger than the total power consumption of the electric device 140 and the electric facility 150, the power conditioner 120 causes the charging / discharging device 210 to enter the charging mode. It is controlled and the storage battery 220 is charged.

  On the other hand, from time tc1 to time tc2, since the generated power of the photovoltaic power generation module 110 is less than the total power consumption of the electric equipment 140 and the electric equipment 150, the power conditioner 120 causes the charging / discharging device 210 to be in the discharge mode. And the storage battery 220 is discharged.

  Next, at time tc2, when the charged amount of the storage battery 220 coincides with the charged amount represented by the broken line ln due to discharge, charge mode switching control is performed. Thereafter, the charging mode continuation control is performed from the time tc2 to the time ts ', the charging of the storage battery 220 is continued, and the discharge suppression control is performed from the time ts' at which the charged amount of the storage battery 220 becomes the full charge amount.

  On the other hand, as illustrated in FIG. 16, when the storage amount of the storage battery 220 is smaller than the broken line ln, the control unit 595 uses the electric vehicle R according to the schedule, and stores the storage amount of the storage battery 220 by time ts ′. Is determined not to increase to the full charge amount. For this reason, the control part 595 controls the information display part 597 of FIG. 11 so that the display which urges | reflects use of the electric vehicle R may be performed. Control unit 595 performs charge mode continuation control after performing charge mode switching control on charge / discharge device 210.

  Control unit 595 also calculates the difference between polygonal line ln and the storage amount of storage battery 220, and sets the calculated difference as the insufficient storage amount. Next, the control unit 595 uses the following formula (13) or (14) to calculate a planned travel distance to be shortened (hereinafter referred to as a shortened distance) or a planned travel time to be shortened (hereinafter referred to as a shortened time). The information display unit 597 may be controlled to perform calculation and display to prompt the user to shorten the planned travel distance by the calculated shortened distance or to shorten the planned travel time by the calculated shortened time.

Reduced distance [km] = insufficient storage [kWh] / average discharge per unit distance [kWh / km] (13)
Reduced time [h] = Insufficient storage [kWh] / Average discharge per unit time [kWh / h] (14)

  Further, as shown in FIG. 17, the control unit 595 fully charges the storage battery 220 before using the electric vehicle R when the charged amount Cn2 that defines the point Ps on the broken line ln is larger than the full charged amount Cf. However, if the electric vehicle R is used according to the schedule, it is determined that the charged amount of the storage battery 220 cannot be increased to the fully charged amount by time ts ′. For this reason, the control unit 595 controls the information display unit 597 so as to perform a display prompting to refrain from using the electric vehicle R. In addition, the control unit 595 sets the difference between the charged amount Cn2 and the fully charged amount Cf as an insufficient charged amount, and displays for the shortened distance calculated based on the insufficient charged amount or travels for the reduced time. The information display unit 597 may be controlled to perform a display prompting to shorten the scheduled time.

  According to these configurations, even when the electric vehicle R is used as scheduled, the discharge permission control is performed when the stored amount of the storage battery 220 can be increased to the target stored amount (full charge amount in the present embodiment). For this reason, even if the electric vehicle R is used, as long as the electric vehicle R is used as scheduled, electric power can be stored in the storage battery 220 in preparation for a power failure more reliably than in the past.

  According to these configurations, when the electric vehicle R is used as scheduled, a display prompting the user to refrain from using the electric vehicle R is performed when the amount of power stored in the storage battery 220 cannot be increased to the full charge amount. For this reason, when the user uses the electric vehicle R as scheduled, the user easily knows that it is difficult to store the power supplied to the electric device 140 and the electric facility 150 in the storage battery 220 before the power failure. Can do. In addition, if the user refrains from using the electric vehicle R, the power can be stored in the storage battery 220 more reliably in the event of a power failure than before.

  It should be noted that the charge / discharge control device 190 having a configuration for realizing the function according to the first embodiment in advance or the charge / discharge control device 590 having a configuration for realizing the function according to the second embodiment can be provided. By applying the program, the existing charge / discharge control device can also function as the charge / discharge control device 190 according to the first embodiment or the charge / discharge control device 590 according to the second embodiment. That is, the charge / discharge control program for realizing each functional configuration by the charge / discharge control device 190 exemplified in the first embodiment or the charge / discharge control device 590 exemplified in the second embodiment is controlled by the existing charge / discharge control device. By applying so that a computer (CPU etc.) can be performed, it can be functioned as the charging / discharging control apparatus 190 which concerns on this Embodiment 1, or the charging / discharging control apparatus 590 which concerns on Embodiment 2. FIG.

  Such a program distribution method is arbitrary. For example, the program can be distributed by being stored in a recording medium such as a memory card, a CD-ROM, or a DVD-ROM, or via a communication medium such as the Internet. . In addition, the charging / discharging control method of this invention can be implemented using the charging / discharging control apparatus 190 or the charging / discharging control apparatus 590. FIG.

  Various embodiments and modifications of the present invention are possible without departing from the broad spirit and scope of the present invention. Further, the above-described embodiment is for explaining the present invention, and does not limit the scope of the present invention. That is, the scope of the present invention is shown not by the embodiments but by the claims. Various modifications within the scope of the claims and within the scope of the equivalent invention are considered to be within the scope of the present invention.

H Housing L1, L2a, L2b, L2c, L3 Power line R Electric vehicle 1 Charging / discharging system 10 Communication network 110 Solar power generation module 120 Power conditioner 130 Distribution board 140 Electric equipment 150 Electric equipment 190 Charging / discharging control device 190a CPU
190b ROM
190c RAM
190d hard disk 190f first communication circuit 190g second communication circuit 190i LCD
190j Operation buttons 191 Information storage unit 192 Information acquisition unit 193 Power failure occurrence prediction unit 194 Emergency degree calculation unit 195 Control unit 210 Charge / discharge device 220 Storage battery 300 Server 590 Charge / discharge control device 591 Information storage unit 592 Information acquisition unit 593 Power failure occurrence prediction unit 594 Urgency calculation unit 595 Control unit 596 Schedule management unit 597 Information display unit

Claims (13)

Charging control for charging the storage battery with power generated using natural energy or power supplied from the power system , and discharge permission control for permitting discharge of the storage battery to supply power to an electrical device or electrical facility ; A charge / discharge control device for performing
Information acquisition means for acquiring information indicating a sign of a power outage and information indicating a storage amount of the storage battery ;
Predicting means for predicting the occurrence time of the power outage based on the sign represented by the acquired information;
Based on the sign represented by the acquired information, the degree of urgency indicating how urgently the power to be supplied to the storage battery needs to be charged during the power failure to the electrical equipment or the electrical facility is indicated. A calculation means for calculating;
E Bei and control means for performing relative to the storage battery of any one or more of the charge control and the discharge enable control in accordance with the calculated degree of urgency,
The calculation means includes a grace time until the predicted occurrence of power outage with respect to a charging time required to increase the storage amount of the storage battery from the storage amount represented by the acquired information to a predetermined target storage amount. The smaller the ratio, the higher the degree of urgency,
When the calculated urgency level is low, the control means performs the discharge permission control over a longer period than when the calculated urgency level is high.
The charge / discharge control apparatus characterized by the above-mentioned. The predicting means identifies the possibility of the power outage based on a sign represented by the acquired information,
The calculation means calculates the urgency level lower as the predicted possibility is lower.
The charge / discharge control apparatus according to claim 1 . Charging control for charging the storage battery with power generated using natural energy or power supplied from the power system , and discharge permission control for permitting discharge of the storage battery to supply power to an electrical device or electrical facility ; A charge / discharge control device for performing
An information acquisition means for acquiring information indicating a sign of a power outage;
Based on the sign represented by the acquired information, it is an index showing how urgently it is necessary to charge the storage battery with the power supplied to the electrical equipment or the electrical equipment during a power failure A calculation means for calculating the degree of urgency;
Control means for performing any one or more of the charge control and the discharge permission control on the storage battery according to the calculated degree of urgency,
The charge / discharge control apparatus characterized by the above-mentioned. When the calculated urgency level is low, the control means performs the discharge permission control over a longer period than when the calculated urgency level is high.
The charge / discharge control apparatus according to claim 3 . Predicting means for predicting the occurrence time of the power outage based on the sign represented by the acquired information,
The information acquisition means further acquires information indicating the storage amount of the storage battery,
The calculation means includes a grace time until the predicted occurrence of the power outage with respect to a charging time required to increase the storage amount of the storage battery from the storage amount represented by the acquired information to a predetermined target storage amount. As the ratio of is smaller, the urgency is calculated higher.
The charge / discharge control apparatus according to claim 4 . The predicting means identifies the possibility of the power outage based on a sign represented by the acquired information,
It said calculation means calculates lower the urgency the lower the expected potential,
The charge / discharge control apparatus according to claim 5 . The control means determines whether or not the storage amount of the storage battery can be increased to the target storage amount by the occurrence time of the power failure based on the storage amount represented by the acquired information, Performing the discharge permission control in a period in which it is determined that the storage amount of the storage battery can be increased to the target storage amount,
The charge / discharge control apparatus according to any one of claims 1, 2, 5, and 6 . The storage battery is mounted on an electric vehicle,
A management means for managing a schedule for using the electric vehicle is further provided,
The control means calculates the amount of decrease in the storage amount of the storage battery due to the use of the electric vehicle based on the schedule up to the predicted time of occurrence of the power outage among the schedule managed by the management means, A period when it is determined that the storage amount of the storage battery can be increased to the target storage amount by the occurrence of the power failure based on the storage amount represented by the acquired information and the calculated decrease amount The discharge permission control is performed in
The charge / discharge control apparatus according to claim 7 . Further comprising information display means for displaying information to a user of the electric vehicle;
The control means may increase the storage amount of the storage battery to the target storage amount by the occurrence of the power failure based on the storage amount represented by the acquired information and the calculated decrease amount. Controlling the information display means to perform a display prompting to refrain from using the electric vehicle when it is determined that the electric vehicle cannot be used;
The charge / discharge control apparatus according to claim 8 . Charging control for charging the storage battery with power generated using natural energy or power supplied from the power system , and discharge permission control for permitting discharge of the storage battery to supply power to an electrical device or electrical facility ; The computer of the charge / discharge control device
Information acquisition means for acquiring information indicating a sign of a power outage and information indicating a storage amount of the storage battery ;
Prediction means for predicting the occurrence time of the power outage based on the sign represented by the acquired information,
Based on the sign represented by the acquired information, the degree of urgency indicating how urgently the power to be supplied to the storage battery needs to be charged during the power failure to the electrical equipment or the electrical facility is indicated. Calculation means for calculating,
According to the calculated degree of urgency, function as a control unit that performs any one or more of the charge control and the discharge permission control on the storage battery ,
The calculation means includes a grace time until the predicted occurrence of power outage with respect to a charging time required to increase the storage amount of the storage battery from the storage amount represented by the acquired information to a predetermined target storage amount. The smaller the ratio, the higher the degree of urgency,
When the calculated urgency level is low, the control means performs the discharge permission control over a longer period than when the calculated urgency level is high.
A charge / discharge control program. Charging control for charging the storage battery with power generated using natural energy or power supplied from the power system , and discharge permission control for permitting discharge of the storage battery to supply power to an electrical device or electrical facility ; The computer of the charge / discharge control device
Information acquisition means for acquiring information indicating a sign of a power outage;
Based on the sign represented by the acquired information, it is an index showing how urgently it is necessary to charge the storage battery with the power supplied to the electrical equipment or the electrical equipment during a power failure A calculation means for calculating the degree of urgency;
Causing the storage battery to function as one or more of the charge control and the discharge permission control according to the calculated degree of urgency,
A charge / discharge control program. Charging control for charging the storage battery with power generated using natural energy or power supplied from the power system , and discharge permission control for permitting discharge of the storage battery to supply power to an electrical device or electrical facility ; A charge / discharge control method for performing
An information acquisition step of acquiring information indicating a sign of a power failure and information indicating a storage amount of the storage battery ;
A prediction step of predicting the occurrence time of the power outage based on the sign represented by the acquired information;
Based on the sign represented by the acquired information, the degree of urgency indicating how urgently the power to be supplied to the storage battery needs to be charged during the power failure to the electrical equipment or the electrical facility is indicated. A calculation step to calculate,
Have a, a control step performed on the battery of any one or more of the charge control and the discharge enable control in accordance with the calculated degree of urgency,
In the calculation step, a grace time until the predicted time of occurrence of the power outage with respect to a charging time required for increasing the amount of electricity stored in the storage battery from the amount of electricity represented by the acquired information to a predetermined target amount of electricity stored The smaller the ratio, the higher the degree of urgency,
In the control step, when the calculated urgency level is low, the discharge permission control is performed over a longer period than when the calculated urgency level is high.
The charge / discharge control method characterized by the above-mentioned. Charging control for charging the storage battery with power generated using natural energy or power supplied from the power system , and discharge permission control for permitting discharge of the storage battery to supply power to an electrical device or electrical facility ; A charge / discharge control method for performing
An information acquisition step for acquiring information indicating a sign of a power outage;
Based on the sign represented by the acquired information, it is an index showing how urgently it is necessary to charge the storage battery with the power supplied to the electrical equipment or the electrical equipment during a power failure A calculation step for calculating the degree of urgency;
A control step of performing any one or more of the charge control and the discharge permission control on the storage battery according to the calculated urgency level,
The charge / discharge control method characterized by the above-mentioned.

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