JP6282212B2 - Storage battery charge / discharge management device and storage battery charge / discharge management system - Google Patents

Description

  The present invention relates to a storage battery charge / discharge management device and a storage battery charge / discharge management system for managing charge / discharge of storage batteries of trains and ground storage equipment.

  Conventionally, a storage battery is installed on one or both of the train and ground facilities to discharge the storage battery when powering the train to reduce the voltage drop, and charging the storage battery when regenerating the train while suppressing regenerative invalidation A system to make use of it is being studied.

  In the regenerative operation of the train, the driving force generated in the train is converted into electrical energy, the electrical energy is supplied to the overhead line, and the electrical energy supplied to the overhead line is used for driving other trains or storage batteries. Is charged. Regeneration invalidity refers to a state in which such a train regeneration operation is not possible.

  For example, Patent Document 1 has an object of “providing an electric vehicle drive system that can stabilize the voltage of feeders and overhead lines and reduce loss, and can also reduce equipment costs”. The motor drive converter 3 converts the DC power supplied from the motor and drives the motor 4 to drive the electric vehicle. On the other hand, the electric power is run in parallel with the motor drive converter 3 with respect to the overhead line 1. The electric power when the electric vehicle I is powered is supplied mainly from the large-capacity power storage device 5 while the regenerative power during regenerative braking is stored in the large-current power storage device 5 to the electric vehicle I. An electric vehicle drive system that reduces the amount of power supplied from the overhead line 1 and the amount of power regenerated by the electric vehicle I on the overhead line 1 is disclosed. Patent Document 1 discloses that a large-capacity power storage device is mounted on a vehicle and a charge / discharge pattern is controlled according to a train schedule, speed, and position.

  Further, for example, Patent Document 2 states that “the energy state of each micro train in the entire railway system, the state of energy transfer with other trains, and the power supply state of the substation can be seen in total. In simulation analysis, the challenge is to provide a simulation device that is expected to improve the depth of analysis and improve efficiency, and simulates a train control system, a vehicle system, and an energy storage device related to train operation. An energy consumption calculation device that calculates a train operation / electric power supply from time to time by a desired arithmetic expression using an operation diagram as an input, and calculates at least a characteristic value of energy consumption of the energy storage device, and a notification device that notifies the calculation result A simulation apparatus having the above is disclosed. In Patent Document 2, storage batteries are installed both on the vehicle and on the ground, electric power is exchanged between the vehicle and the ground via an overhead line, and electric power is simulated based on the running state of the train. The driver adjusts the departure timing according to the simulation result.

JP 2003-18702 A JP 2006-254536 A

  However, in Patent Document 1 and Patent Document 2 which are the conventional techniques described above, the charging / discharging timing of the storage battery is not considered. For this reason, there is a problem that it is difficult to suppress regeneration and to reduce energy consumption according to the charging / discharging timing of the storage battery.

  The present invention has been made in view of the above, and it is an object of the present invention to obtain a storage battery charge / discharge management device and a storage battery charge / discharge management system that can suppress regenerative expiration and reduce the amount of energy consumption than in the past. And

  In order to solve the above-described problems and achieve the object, the present invention relates to a storage battery charge / discharge management device that manages the charge / discharge timing of a storage battery mounted on at least one of a train and a ground power storage facility. A database storing route alignments and operation schedules, a prediction unit for predicting travel of the train based on the route alignments and the operation diagrams of the train, the train and the ground power storage facility equipped with the storage battery A charging / discharging plan including charging / discharging timing of the storage battery based on at least one information among the information of the train and the ground storage facility received by the communication unit and the travel prediction And a controller that creates a plurality of charge / discharge patterns corresponding to the number of times regenerative invalidation occurs and the number of times to charge. And, from the plurality of charging and discharging pattern, the charge planning in the train, and determines based on the power consumption.

  The line alignment refers to a three-dimensional shape of a track on which a train runs. The line alignment includes information on a plane alignment indicating a planar shape of the route and a vertical alignment called a vertical gradient.

  According to the present invention, there is an effect that it is possible to obtain a storage battery charge / discharge management device and a storage battery charge / discharge management system capable of suppressing regenerative expiration and reducing energy consumption as compared with the prior art.

FIG. 1 is a diagram illustrating a configuration of a storage battery charge / discharge management system according to an embodiment. FIG. 2 is a diagram illustrating travel prediction performed by a storage battery charge / discharge management prediction unit of the storage battery charge / discharge management system according to the embodiment. FIG. 3 is a diagram showing a speed curve with respect to a train position and a remaining battery level in a travel prediction curve of a storage battery charge / discharge management system as a comparative example. FIG. 4 is a diagram illustrating a speed curve and a storage battery remaining amount with respect to a train position in a travel prediction curve of the storage battery charge / discharge management system according to the embodiment. FIG. 5 is a diagram for explaining a charging timing changing method in the storage battery charge / discharge management system according to the embodiment. FIG. 6 is a diagram for explaining a charging timing changing method in the storage battery charge / discharge management system according to the embodiment. FIG. 7: is a flowchart which shows the procedure which sets the charging / discharging plan in the storage battery charging / discharging management system concerning Embodiment. FIG. 8: is a flowchart which shows the procedure which changes the charging / discharging plan in the storage battery charging / discharging management system concerning Embodiment.

  EMBODIMENT OF THE INVENTION Below, embodiment of the storage battery charge / discharge management apparatus and storage battery charge / discharge management system concerning this invention is described in detail based on drawing. Note that the present invention is not limited to the embodiments.

Embodiment.
FIG. 1 is a diagram showing a configuration of an embodiment of a storage battery charge / discharge management system according to the present invention. The storage battery charge / discharge management system shown in FIG. 1 includes a train 10, a ground storage device 20, and a storage battery charge / discharge management device 30, and the train 10 and the ground storage facility 20 are electrically connected by an overhead line 40.

  The train 10 includes a storage battery 11, an on-vehicle control device 12, a communication unit 13, and a main motor 14. The storage battery 11 is a storage battery that is charged and discharged by the on-board controller 12 via the overhead line 40 in accordance with the traveling state of the train 10. The on-board controller 12 controls the main motor 14 and manages charge / discharge of the storage battery 11. The communication unit 13 exchanges information with the communication unit 32 of the storage battery charge / discharge management device 30. Specifically, the position, speed, weight, power consumption, remaining amount of the storage battery 11, and voltage of the overhead line 40, which are train information, are transmitted from the communication unit 13. The main motor 14 is controlled by the on-board controller 12 and causes the train 10 to travel.

  The ground power storage facility 20 includes a storage battery 21, a ground power storage facility control device 22, and a communication unit 23. The storage battery 21 is a storage battery that is charged and discharged by the ground power storage facility control device 22 via the overhead line 40. The ground power storage facility control device 22 also manages charge / discharge of the storage battery 21. The communication unit 23 exchanges information with the communication unit 32 of the storage battery charge / discharge management device 30. Specifically, the communication unit 23 transmits the remaining amount of the storage battery 21 and the voltage of the overhead line 40 that are ground storage facility information. In the present embodiment, the case where the storage battery is mounted on both the train 10 and the ground storage facility 20 will be described. However, the present invention is not limited to this, and the storage battery is at least one of the train 10 and the ground storage facility 20. It only has to be mounted on either one.

  The storage battery charge / discharge management device 30 includes a database 31, a communication unit 32, a control unit 33, and a prediction unit 34. The database 31 stores route alignment and train schedules. The communication unit 32 transmits a storage battery charge / discharge command to the communication unit 13 of the train 10 and the communication unit 23 of the ground power storage facility 20, and receives train information and ground power storage facility information. The control unit 33 receives the train information and the ground storage facility information from the communication unit 32, and transmits the train information, the ground storage facility information, and the current storage battery charge / discharge plan to the prediction unit 34. The prediction unit 34 performs the travel prediction of the train 10 based on the line alignment in the database 31 and the train schedule, and transmits the prediction result to the control unit 33. The control unit 33 that has received the prediction result changes the storage battery charge / discharge plan based on the prediction result, and transmits the changed storage battery charge / discharge plan to the communication unit 32.

  In addition, the control part 33 has memorize | stored at least the newest storage battery charging / discharging plan and the driving | running | working prediction at the time of creating the newest storage battery charging / discharging plan. The control unit 33 compares the travel prediction when the latest storage battery charge / discharge plan is created with the train information acquired via the communication unit 32, and predicts if a deviation exceeding an allowable range occurs. The part 34 is made to perform the traveling prediction of the train 10 again. The control unit 33 changes the storage battery charge / discharge plan based on the changed travel prediction, and transmits the changed storage battery charge / discharge plan to the communication unit 32.

  In the storage battery charging / discharging plan, when regenerative invalidation occurs in the train 10, the discharge of the ground storage facility 20 or other train that can exchange power with the train 10 is suppressed, and the ground storage facility 20 or other train is suppressed. It is preferable to manage charge / discharge of the storage battery so as to charge the battery.

  FIG. 2 is a diagram illustrating the travel prediction of the prediction unit 34. In FIG. 2, time is plotted on the horizontal axis and position is plotted on the vertical axis, and travel prediction curves 50, 51, 52 are shown. Here, the travel prediction curve 50 indicates the travel prediction of the preceding train, the travel prediction curve 51 indicates the travel prediction of the first subsequent train, and the travel prediction curve 52 indicates the travel prediction of the second subsequent train. Moreover, in the driving | running | working prediction curves 50, 51, and 52 of FIG. 2, a thick line shows the state in which the storage battery 11 is fully charged, and a dotted line shows the state in which the storage battery 11 is empty. As shown in FIG. 2, in the travel prediction curves 50 and 52, regeneration expires after a fully charged state continues for a while.

  FIG. 3 is a diagram showing a speed curve 60 and a charge / discharge curve 61 representing the remaining battery level with respect to the position of the train 10 that draws the travel prediction curve 52 of FIG. In FIG. 3, the train 10 that departs from the station A with the storage battery 11 fully charged accelerates while discharging the storage battery 11 in the section A, and then switches to the constant speed operation in which charging / discharging is not performed in the section B. Then, in the section C, the storage battery 11 is charged with the generated regenerative power while decelerating after the constant speed operation, and thereafter, the operation is switched to the constant speed operation in the section E through a short discharge period in the section D. In the section F after performing constant speed operation for a while, the storage battery 11 is charged when decelerating to stop at the station B, and in the section G, regenerative invalidation occurs after the maximum capacity of the storage battery 11 is charged. When the regeneration invalidation occurs in this way, the regenerative brake becomes ineffective, and another brake, for example, a pneumatic brake, must be used. However, if the pneumatic brake is used, the energy of the train 10 is consumed by heat, which increases the energy consumption.

  Therefore, in the present embodiment, the charge / discharge timing is controlled so that regenerative revocation does not occur. FIG. 4 is a diagram showing a speed curve 70 and a charge / discharge curve 71 representing the remaining amount of storage battery when the present invention is applied to the train that draws the travel prediction curve 52 of FIG. The speed curve 60 in FIG. 3 and the speed curve 70 in FIG. 4 have the same shape, and the traveling pattern is the same. In FIG. 4, as in FIG. 3, the train 10 that departs from the station A with the storage battery 11 fully charged accelerates while discharging the storage battery 11 in the section a, and does not charge or discharge in the section b thereafter. Switch to constant speed operation. Then, similarly to FIG. 3, in the section c after the constant speed operation, the storage battery 11 is charged with the generated regenerative power while decelerating, and thereafter, in the section d, the operation is switched to the constant speed operation through a short discharge period. In section e, the vehicle is decelerated to stop at station B after a constant speed operation for a while after that. However, charging does not start at the storage battery 11 at the start of deceleration, but enters section f just before arrival at station B. To start. In this way, when the charging timing is delayed, regeneration revocation can be suppressed.

  Here, the setting method of the charging / discharging timing in this invention is demonstrated. In the present invention, in order to suppress regenerative invalidation as much as possible, if it has been found that regenerative power will be generated in the near future, it is better to keep the remaining amount of the storage battery as small as possible so that the regenerative power can be accepted. Therefore, it is preferable. Therefore, when it is known that regenerative power is generated, the storage battery is set to be discharged as much as possible. Specifically, the storage battery 11 that is an on-vehicle storage battery is set to discharge when there is a remaining amount of the storage battery 11 when the train 10 is powered, and the storage battery 21 that is a ground storage battery is a connection portion with the ground storage facility 20. When the voltage of the overhead line 40 is lower than a predetermined threshold value, it is set to discharge if there is a remaining amount of the storage battery 21. As the threshold value, a voltage value corresponding to the overhead line voltage when the train is in powering can be set. On the other hand, in order to prevent regenerative revocation, in a scene where regenerative revocation occurs unless the storage battery is charged, the charging timing for charging as long as the storage battery has free capacity is set as an initial setting.

  FIG. 5 is a diagram for explaining how to divide a problem when changing the timing of charging. When the charge / discharge curve 80 shown in FIG. 5 is obtained by the initial setting of the charge / discharge timing, the interval from the point where the remaining battery level becomes 0 to the next point where the remaining battery level becomes 0 is divided as one section. . At this time, according to the policy of initial setting of the charge / discharge timing, if there is free capacity of the storage battery in the scene where regeneration expires unless it is charged, it is discharged as much as possible in the scene where discharge is possible, on the other hand, Even if the charging timing in a certain section is arbitrarily changed, the point at which the remaining battery level becomes zero does not change and does not affect the preceding and following sections. That is, if the charging timing is adjusted for each section and the charge / discharge curve is corrected so that regenerative revocation does not occur as much as possible in the section, regenerative revocation can be reduced as a whole.

  FIG. 6 is a diagram for explaining a method for changing the charging timing, with the position on the horizontal axis and the remaining battery level on the vertical axis. The charge / discharge curve 90 shown in FIG. 6 is the original charge / discharge curve before the change. In the charge / discharge curve 90, regenerative power is supplied even after the storage battery is fully charged, and regenerative revocation occurs. Therefore, the shape of the charge / discharge curve is adjusted so that charging is performed at a point where regenerative revocation occurs. In FIG. 6, since regenerative revocation occurs at two locations, a charge / discharge curve 91 that is charged at the first regenerative expiration point and a charge / discharge curve 92 that is charged at the second regenerative expiration point. Create In order to allow charging at such a location, it is necessary to determine where to stop charging instead in order to create free storage battery capacity. Therefore, the charging / discharging curves 91 and 92 are changed so as not to charge the charging portion that was before the new charging location. Here, assuming that the number of times regenerative invalidation occurs in the charging curve 90 is m and the number of times charging is n, the regenerative invalidation place is changed to charging, and the charging place is changed to no charging. Create a street charging plan. Energy consumption can be automatically reduced by selecting the least m × n charge / discharge curves corresponding to the number of regenerative invalidations and the number of times of charging on the train. it can. That is, a charging / discharging plan is determined from a plurality of charging / discharging patterns based on the power consumption of the train. If regenerative revocation is still occurring in the selected charge / discharge curve, the same procedure may be used again to repeat the search until no charge / discharge curve that further improves power consumption is found. In order to reduce the number of searches, a restriction may be provided.

  In this way, the control unit 33 creates a plurality of charge / discharge patterns corresponding to the number of times regenerative invalidation occurs and the number of times of charging, that is, a charge / discharge curve. Is generated based on a charge / discharge pattern in which power consumption is smaller than that in the case where the regenerative invalidation is not generated as much as possible and the charge / discharge timing is not adjusted. It is also possible to create a charge / discharge plan by selecting a charge / discharge pattern corresponding to the number of times regenerative invalidation occurs in a train and having the smallest number of regenerative invalidations.

  As described above, the charge / discharge curve can be arbitrarily set, regenerative expiration can be suppressed, and power consumption can be reduced.

  Next, a procedure for setting a charge / discharge plan in the present embodiment will be described. FIG. 7 is a flowchart showing a procedure for setting a charge / discharge plan. First, the process is started (S11), and the prediction unit 34 performs the operation simulation and power simulation of all the trains while referring to the route alignment and the train schedule in the database 31 (S12). And from the result of the said operation simulation and the said electric power simulation, the control part 33 produces a charging / discharging plan based on an initial setting policy (S13). Here, as an initial setting policy, in order to avoid regenerative expiration as much as possible, it is charged only when regenerative expiration expires if it is not charged, so that it is discharged whenever discharge is possible. To do. Thereafter, the prediction unit 34 determines whether or not the charge / discharge plan has regenerative invalidation (S14). When regeneration invalidation has occurred, that is, when branching to Yes in the determination of S14, it is determined whether the power consumption can be further reduced (S15). If the power consumption can be further reduced, that is, if the determination in S15 branches to Yes, the charge / discharge plan is changed (S16), and the process returns to S14. If regenerative revocation has not occurred, i.e., branching to No in the determination of S14, or if the power consumption cannot be further reduced, i.e., branching to No in the determination of S15, the latest charge / discharge plan is set. It transmits to the train 10 and the ground power storage facility 20 via the communication unit 32 (S17), and the process is terminated (S18).

  FIG. 8 is a flowchart showing a procedure for changing the charge / discharge plan. First, a process is started (S21), the location where regeneration invalidation occurs is extracted (S22), and it is determined whether there exists regeneration invalidation (S23). If regenerative revocation does not occur (when branching to No in S23), it is not necessary to change the charge / discharge plan, and the process ends (S28). When regenerative expiration occurs (when branching to Yes in S23), the charging location is extracted (S24), and charge / discharge calculation is performed (S25). Here, the charge / discharge calculation is performed by changing the charging timing to the place where regenerative invalidation occurs for each place where regenerative invalidation occurs and for each charging place, and for all combinations of places where regenerative invalidation occurs and all charging places Do. Thereafter, the combination with the minimum power consumption is selected from the charge / discharge calculation results for all the combinations where the regenerative invalidation occurs and all the combinations of the charging points (S26). It is determined whether or not the discharge plan should be changed (S27). When the charging / discharging plan should not be changed, that is, when the original plan may be left as it is (when branching to No in S27), the process ends (S28). When the charging / discharging plan should be changed (when branching to Yes in S27), the process returns to the extraction (S22) of the portion where the regenerative invalidation occurs in the combination with the selected power consumption being minimum, and the process is performed again. repeat.

  As described above, it is possible to obtain a storage battery charge / discharge management device capable of suppressing regeneration and revocation and reducing energy consumption more than before. According to the present invention, regeneration expiration can be suppressed, so that power consumption can be reduced and train travel can be made efficient.

  In addition, this invention is not limited to the storage battery charging / discharging management apparatus demonstrated above, The storage battery charging / discharging management system to which the said storage battery charging / discharging management apparatus is applied is also contained in this invention. That is, a train on which a storage battery is mounted, a ground storage facility on which the storage battery is installed, and a storage battery charge / discharge management device that manages charge / discharge timing of the storage battery mounted on at least one of the train or the ground storage facility, In the storage battery charge / discharge management system communicatively connected to each other, the train discharges the storage battery mounted on the train during powering of the train, and the ground storage facility is installed in the ground storage facility. The storage battery is discharged when the voltage of the overhead line connected to the ground power storage facility is lower than a predetermined value, and the storage battery charge / discharge management device is a database in which the train line travels and the operation schedule is stored. A prediction unit that predicts travel of the train based on the route alignment of the train and the operation schedule, the train equipped with the storage battery, and the train Including a communication unit communicating with at least one of the upper power storage facilities, and at least one of the information of the train and the ground power storage facility received by the communication unit and the charge / discharge timing of the storage battery based on the travel prediction A control unit for creating a charge / discharge plan, and the control unit creates a plurality of charge / discharge patterns corresponding to the number of times regenerative invalidation occurs and the number of times of charging, and from among the plurality of charge / discharge patterns, A storage battery charge / discharge management system that determines a charge / discharge plan in the train based on power consumption is also included in the present invention.

  Moreover, in the storage battery charge / discharge management device and the storage battery charge / discharge management system, the control unit stores the latest storage battery charge / discharge plan and the travel prediction when the latest storage battery charge / discharge plan is created. In addition, when the latest storage battery charging / discharging plan is created, a prediction exceeding the allowable range is generated by comparing the travel prediction and the remaining amount of the storage battery with the train position information and the remaining amount of the storage battery. The present invention also includes a storage battery charge / discharge management device and a storage battery charge / discharge management system characterized in that the driving prediction is performed again by the unit. In addition, in the charge / discharge plan of the storage battery charge / discharge management device and the storage battery charge / discharge management system, when regeneration invalidation occurs in the train, the ground power storage facility or other train that can exchange power with the train The present invention also includes a storage battery charge / discharge management device and a storage battery charge / discharge management system that suppress the discharge of the battery or charge the ground power storage facility or another train. In addition, the charge / discharge plan of the storage battery charge / discharge management device and the storage battery charge / discharge management system is such that the prediction unit refers to the route alignment and the schedule of the database, and the operation simulation and power simulation of all trains on the route. The control unit is created based on the preset initial setting policy from the results of the operation simulation and the power simulation, and until the regeneration invalidation does not occur or until the power consumption cannot be further reduced When it is changed and no regeneration expires or the power consumption cannot be further reduced, the latest charge / discharge plan is transmitted to at least one of the train on which the storage battery is mounted and the ground storage facility. Storage battery charge / discharge management device and storage battery charge / discharge management The stem is also included in the present invention.

  As described above, the storage battery charge / discharge management device and the storage battery charge / discharge management system according to the present invention are useful for routes in which regeneration and revocation may occur, and in particular, there are a large number of trains and ground storage facilities equipped with storage batteries. Suitable for you.

  DESCRIPTION OF SYMBOLS 10 Train, 11 Storage battery, 12 Vehicle control device, 13 Communication part, 14 Main motor, 20 Ground storage equipment, 21 Storage battery, 22 Ground storage equipment control apparatus, 23 Communication part, 30 Storage battery charge / discharge management apparatus, 31 Database, 32 Communication unit, 33 control unit, 34 prediction unit, 40 overhead line, 50, 51, 52 travel prediction curve, 60, 70 speed curve, 61, 71, 80, 90, 91, 92 charge / discharge curve.

Claims (8)

In the storage battery charge / discharge management device that manages the charge / discharge timing of the storage battery mounted on at least one of the train and the ground storage facility,
A database storing route alignments and schedules on which the train runs;
A prediction unit that predicts travel of the train based on the route alignment of the train and the operation schedule;
A communication unit that communicates with at least one of the train and the ground storage facility equipped with the storage battery,
A controller that creates a charge / discharge plan including the charge / discharge timing of the storage battery based on at least one of the information on the train and the ground storage facility received by the communication unit and the travel prediction, and
The control unit creates a plurality of charge / discharge patterns corresponding to the number of times regenerative invalidation occurs and the number of times to charge,
A storage battery charge / discharge management apparatus that determines a charge / discharge plan for the train based on power consumption from the plurality of charge / discharge patterns. In claim 1,
The control unit stores the latest storage battery charge / discharge plan and the travel prediction when the latest storage battery charge / discharge plan is created, and the travel prediction and storage battery when the latest storage battery charge / discharge plan is created. The battery charge / discharge management is characterized in that when the difference between the remaining amount of the train, the position information of the train, and the remaining amount of the storage battery exceeds a permissible range, the prediction unit performs the driving prediction again. apparatus. In claim 1,
In the charging / discharging plan, when regeneration invalidation occurs in the train, it is possible to suppress discharge of the ground power storage facility or other train that can exchange power with the train, or to the ground power storage facility or other train. A storage battery charge / discharge management device characterized by charging. In claim 1,
The charging / discharging plan refers to the route alignment of the database and the operation schedule of the database, the operation simulation and power simulation of all trains on the route,
From the results of the operation simulation and the power simulation, the control unit is created based on a preset initial setting policy, and is changed until no regeneration expires or the power consumption cannot be further reduced.
When regenerative expiry does not occur or the power consumption cannot be further reduced, the latest charge / discharge plan is transmitted to at least one of the train on which the storage battery is mounted and the ground storage facility. A storage battery charge / discharge management device. A train on which a storage battery is mounted, a ground storage device on which the storage battery is installed, and a storage battery charge / discharge management device that manages charge / discharge timing of the storage battery mounted on at least one of the train or the ground storage facility communicate with each other. In the storage battery charge / discharge management system that can be connected,
The train discharges a storage battery mounted on the train when the train is powered,
The ground power storage facility discharges the storage battery installed in the ground power storage facility when the voltage of the overhead line connected to the ground power storage facility is lower than a predetermined value,
The storage battery charge / discharge management device comprises:
A database storing route alignments and schedules on which the train runs;
A prediction unit that predicts travel of the train based on the route alignment of the train and the operation schedule;
A communication unit that communicates with at least one of the train and the ground storage facility equipped with the storage battery,
A controller that creates a charge / discharge plan including the charge / discharge timing of the storage battery based on at least one of the information on the train and the ground storage facility received by the communication unit and the travel prediction, and
The control unit creates a plurality of charge / discharge patterns corresponding to the number of times regenerative invalidation occurs and the number of times to charge,
A storage battery charge / discharge management system, wherein a charge / discharge plan for the train is determined based on power consumption from the plurality of charge / discharge patterns. In claim 5,
The control unit stores the latest storage battery charge / discharge plan and the travel prediction when the latest storage battery charge / discharge plan is created, and the travel prediction and storage battery when the latest storage battery charge / discharge plan is created. The battery charge / discharge management is characterized in that when the difference between the remaining amount of the train, the position information of the train, and the remaining amount of the storage battery exceeds a permissible range, the prediction unit performs the driving prediction again. system. In claim 5,
In the charging / discharging plan, when regeneration invalidation occurs in the train, it is possible to suppress discharge of the ground storage facility or other train that can exchange power with the train, or to the ground storage facility or other train. A storage battery charge / discharge management system characterized by charging. In claim 5,
The charging / discharging plan refers to the route alignment of the database and the operation schedule of the database, the operation simulation and power simulation of all trains on the route,
From the results of the operation simulation and the power simulation, the control unit is created based on a preset initial setting policy, and is changed until no regeneration expires or the power consumption cannot be further reduced.
When regenerative expiry does not occur or the power consumption cannot be further reduced, the latest charge / discharge plan is transmitted to at least one of the train on which the storage battery is mounted and the ground storage facility. A storage battery charge / discharge management system.

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