Independent power supply system

Abstract

To provide an independent power supply device power supply system capable of allocating a plurality of electric vehicles to each independent power source with good balance in an emergency such as a large scale power failure.SOLUTION: An independent power supply device power supply system includes: a plurality of independent power supply devices 2 including a storage battery 22 and private power generation facilities 21; a management server 4 for managing the independent power supply device 2 via a communication network N; and a plurality of electric vehicles 3. The independent power supply device 2 includes a communication unit 30 for communicating with the management server 4 and an independent power supply device CPU 29 for performing transition control to an emergency mode by an instruction from outside via the communication part 30 and requesting power supply to the management server 4 by the electric vehicle 3 when a prescribed condition is satisfied in an emergency mode state. The management server 4 has a vehicle information storage unit 41 in which the individual electric vehicle 3 and its manager are registered. When receiving a power supply request by the electric vehicle 3 from the independent power supply device 2, the management server selects the electric vehicle 3 from the vehicle information storage unit 41 to issue a request for allocation of the vehicle to the manager of the selected electric vehicle 3.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an independent power supply device that charges a storage battery with electricity generated by utilizing natural energy such as solar power or wind power, and supplies the charged stored electricity to a load, and in particular to an independent power supply power supply system that can charge the storage battery of the independent power supply device not only with natural energy, but also with electricity from an electric vehicle. [Background technology]

[0002] Conventionally, there have been independent power supply devices that are not connected to a commercial power supply (for example, see Patent Document 1). Most of the independent power supply devices generate electricity using natural energy such as solar power or wind power, store the generated electricity in a storage battery, and use the stored electricity as the power source for various displays, campsites, etc. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2006-25481 A Summary of the Invention [Problem to be solved by the invention]

[0004] The above-mentioned conventional independent power supply units were effective because they could supply power to electrical equipment even in mountainous areas such as campsites where commercial electricity was not available, and could also supply power to charge mobile phones and for lighting in the event of a power outage during a disaster.

[0005] However, when the stored power runs out, the only option is to wait for charging from solar power generation, etc., making it difficult to use in a stable state. In particular, when a large-scale power outage occurs due to a disaster, the demand for these independent power supply devices increases, but once the stored power is used up, it takes time to fully charge the storage battery with natural energy, and it is conceivable that many independent power supply devices will become unusable at the same time. Therefore, in preparation for such an event, there is a demand for a method of rapid charging in emergencies that does not rely on natural energy generation.

[0006] As a form of charging in an emergency, it is thought that if electric vehicles such as electric cars are connected to independent power supply units and the independent power supply units are charged from the electric vehicles, charging can be achieved quickly. However, if the storage batteries of many independent power supply units run out at the same time, vehicle allocation may become chaotic and electric vehicles may concentrate on specific independent power supply units, making efficient vehicle allocation impossible. Therefore, it is necessary to prepare a balanced vehicle allocation system for electric vehicles.

[0007] In view of these problems, the present invention aims to provide an independent power supply unit power supply system that can distribute multiple electric vehicles to each independent power supply unit in a balanced manner, even in an emergency such as a large-scale power outage. [Means for solving the problem]

[0008] In order to solve the above problem, the invention of claim 1 provides an independent power supply system including a plurality of independent power supply devices each having a storage battery and a power generation device for charging the storage battery, a management server for managing the independent power supply devices via a communication network, and a plurality of electric vehicles capable of charging the independent power supply devices, wherein the independent power supply devices each include a charging connector for supplying power from the electric vehicles, a communication unit for communicating with the management server, and a request determination unit for requesting the management server to supply power from the electric vehicles when a first predetermined condition including a remaining charge condition of the storage battery is satisfied; an operation control unit that transitions to an emergency mode in which power consumption is reduced and the device operates in such a manner that communication functions are maintained by the external control; The management server has a vehicle information storage unit in which each electric vehicle and its manager is registered, and when a power supply request from an electric vehicle is received from the independent power supply device, the management server selects an electric vehicle from the vehicle information storage unit and requests the manager of the selected electric vehicle to dispatch the vehicle for power supply. According to this configuration, when certain conditions, including the remaining battery charge, are met, a power supply from the electric vehicle is requested. For example, by requesting power supply from an external power source when the battery charge falls below 10% of full charge, power can be supplied without delay and the independent power supply device can be used continuously. Furthermore, by enabling power supply from electric vehicles, it is possible to prevent a situation in which the independent power supply device becomes unusable when a power source is needed due to a large-scale power outage or the like. Meanwhile, the management server that receives a power supply request from an electric vehicle issues a vehicle allocation request to the manager of the selected electric vehicle, so that even if multiple vehicle allocation requests occur simultaneously, vehicles can be allocated according to the request source. In addition, since the device can be operated externally to switch to emergency mode, which reduces power consumption, it can quickly switch to emergency mode in the event of a large-scale disaster, etc., thereby maintaining communication functions.

[0009] The invention of claim 2 is characterized in that, in the configuration described in claim 1, the first condition is that the remaining charge of the storage battery is less than a predetermined percentage of full charge and an external load is connected and supplying power. According to this configuration, even if the remaining charge of the storage battery is low, if the storage battery is not supplying power to an external load, the storage battery does not request power supply from the electric vehicle and waits for charging by its own power generation device, thereby minimizing power supply requests from the electric vehicle.

[0010] The invention of claim 3 is the same as that of claim 1 or 2. , key The request determination unit is characterized in that, in the emergency mode state, when a predetermined second condition is satisfied that is the same as the first condition or that the remaining charge condition of the storage battery is greater than the remaining charge condition of the storage battery of the first condition, requests the management server to supply power from the electric vehicle. According to this configuration , non By switching to constant mode, the system will request power from electric vehicles even when the remaining battery charge is relatively high, preventing a situation in which the independent power supply device becomes unusable in an emergency when power is needed due to a large-scale power outage or other such event.

[0011] The invention of claim 4 is an independent power supply system comprising a plurality of independent power supply devices each having a storage battery and a power generation device for charging the storage battery, a management server that manages the independent power supply devices via a communication network, and a plurality of electric vehicles capable of charging the independent power supply devices, wherein the independent power supply devices have a charging connector for supplying power from the electric vehicles, a communication unit that communicates with the management server, an operation control unit that receives instructions from the outside and controls transition to an emergency mode in which power consumption is reduced to maintain communication function, and a request determination unit that requests the management server to supply power from an electric vehicle when predetermined conditions including a remaining battery charge condition are satisfied in the emergency mode, and the management server has a vehicle information storage unit in which individual electric vehicles and their managers are registered, and when a request for power supply from an independent power supply device is received from the independent power supply device, the management server selects an electric vehicle from the vehicle information storage unit and requests the manager of the selected electric vehicle to dispatch a vehicle for power supply. With this configuration, the independent power supply device can be operated externally to switch to emergency mode, which reduces power consumption, so that it can quickly switch to emergency mode in the event of a large-scale disaster or the like, thereby maintaining communication functions. In addition, when certain conditions, including the remaining battery charge, are met, a request can be made to the management server to supply power from an electric vehicle. Even if multiple independent power supply devices simultaneously request power supply from an electric vehicle, power can be supplied from an external power source before the stored power is used up, enabling power to be supplied without delay.

[0012] The invention of claim 5 is characterized in that, in the configuration described in any one of claims 1 to 4, the management server has a map information storage unit in which independent power supply units and registered electric vehicles are registered using position information on a map, and when selecting an electric vehicle to head toward the independent power supply unit, the management server has a matching processing unit that performs a matching process to calculate a distance by referring to the map information storage unit and determine a vehicle to be dispatched from the calculated distance information, and issues a dispatch request to the manager of the electric vehicle selected by the matching processing unit. According to this configuration, a matching process is performed to allocate electric vehicles while taking into account the travel distance, making it possible to appropriately allocate vehicles so as to avoid driving unnecessary distances. Also, the time from when a power supply request is made until the arrival of an electric vehicle can be shortened. Effect of the Invention

[0013] According to the present invention, when conditions including the remaining battery charge satisfy a predetermined first condition, a request for power supply from the electric vehicle is made. Therefore, for example, when the battery charge falls to 20% or less of a full charge, a power supply from an external power source can be requested, enabling power to be supplied without delay and continuous use of the independent power supply device. Furthermore, by enabling power supply from electric vehicles, it is possible to prevent situations in which the independent power supply device becomes unusable in emergency situations when a power source is needed, such as in the case of a large-scale power outage. On the other hand, the management server that receives a power supply request from an electric vehicle issues a vehicle dispatch request to the manager of the selected electric vehicle, making it possible to dispatch vehicles in a balanced manner even if multiple dispatch requests occur simultaneously. [Brief description of the drawings]

[0014] [Figure 1] 1 is a configuration diagram showing an example of an independent power supply system according to the present invention; [Diagram 2] 4 is a flowchart showing a flow of charging by an electric vehicle with an independent power supply device. [Diagram 3] FIG. 4 is a sequence diagram showing the flow of operations of the independent power supply power supply system. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Fig. 1 is a configuration diagram showing an example of an independent power supply system according to the present invention. The independent power supply system 1 is composed of an independent power supply 2, an electric vehicle 3, a management server 4, a disaster prevention base 6, etc. The management server 4 is connected to the independent power supply device 2 and the disaster prevention base 6 via a communication network N.

[0016] The independent power supply 2 comprises a private power generation facility (power generation facility) 21 such as a solar power generation facility 21a and a wind power generation facility 21b, a storage battery 22, a charge / discharge control unit 23, a charging connector 24 for extracting power from the electric vehicle 3, a switching unit 25 for switching power sources, a DC / AC inverter 26 for outputting AC power of 100V or the like, an internal load 27 such as a security camera or lighting (not shown), an outlet 28 to which the external load 5 is connected, an independent power supply CPU 29 for controlling each part of the independent power supply 2, and a communication unit 30 for communicating with the outside, and multiple such components are installed within the system. The independent power supply CPU 29 performs control to request the management server 4 to supply power from the electric vehicle 3. Two types of judgment conditions (a first condition and a second condition) are set for this purpose, and the judgment condition is changed and controlled depending on whether the system is in an emergency mode state, which will be described later.

[0017] The independent power supply 2 operates in two operation modes: a normal mode and an emergency mode, and transitions to the emergency mode are made by external control. In the normal mode, the storage battery 22 is charged with power generated by the private power generation facility 21, and this stored power is supplied to the internal load 27 and the external load 5. When a predetermined condition (a first condition) is satisfied, a request is made to the management server 4 for charging the storage battery 22 by the electric vehicle 3. In the emergency mode state, the power supplied to the internal load 27 and the external load 5 is reduced in order to maintain the communication function. In addition, when a predetermined condition (second condition) is satisfied, a request is made to the management server 4 for power supply by the electric vehicle 3, and the storage battery 22 is charged by the dispatched electric vehicle 3.

[0018] The electric vehicle 3 is a vehicle capable of supplying electricity to the outside, such as an EV (Electric Vehicle) or a PHV (Plug-in Hybrid Vehicle). This system includes multiple electric vehicles 3, and is made up of a group of privately owned vehicles, a group of vehicles owned by cooperating companies, a group of official vehicles, etc.

[0019] The management server 4 is placed at a disaster prevention base 6 or on the communication network N, and is equipped with a vehicle information memory unit 41 that accumulates vehicle information and administrator information of registered electric vehicles 3, a map information memory unit 42 that stores the locations of the independent power supply unit 2 and the electric vehicles 3 together with map information, a management server CPU 43 that controls the management server 4, and a server communication unit 44 that communicates via the communication network N. The management server CPU43 performs matching processing based on map information (distance information) between the independent power supply device 2 and the electric vehicle 3, and when it receives a request from the independent power supply device 2 for power supply by the electric vehicle 3, it selects the electric vehicle 3 to be sent, taking into account the calculated distance.

[0020] The disaster prevention base 6 is a base installed in a city hall or the like to supervise recovery measures in the event of a disaster, and is equipped with communication means (not shown) for communicating with the management server 4. Regardless of whether a disaster has occurred or not, information on each independent power supply device 2 is obtained from the management server 4 by a person in charge and managed.

[0021] The operation of the independent power supply system 1 configured as described above will be described below. However, the operation when the system is switched to the emergency mode will be mainly described here. The explanation will be given on the assumption that the electric vehicle 3 used for power supply is a vehicle owned by an individual or a company. FIG. 2 shows the flow of operations of the independent power supply 2 when it receives an instruction to switch to the emergency mode. First, the operations of the independent power supply 2 will be described based on this flow. When the independent power supply 2 operating in the normal mode (S1) receives an instruction to switch to the emergency mode operation from the management server 4 (YES in S2), it switches from the normal mode operation to the emergency mode operation (S3).

[0022] still, emergency An instruction to switch to the emergency mode is issued from the disaster prevention base 6 to each independent power supply 2 when a large-scale power outage occurs due to a disaster or the like. This instruction is notified to each independent power supply 2 via the management server 4. The emergency mode state continues until a release instruction is issued from the disaster prevention base 6.

[0023] In response to this transition instruction, power consumption other than that of the communication unit 30 is suppressed (S4) under the control of the independent power supply CPU 29. Then, the charge state of the storage battery 22 and the state of the external load 5 are monitored, and if the charge amount (storage amount) of the storage battery 22 becomes equal to or less than a specified amount (second specified amount) of full charge (e.g., 30% or less) (Yes in S5) and power is being supplied to the external load 5 (Yes in S6), a request for dispatching an electric vehicle is made to the management server 4 (S7). In other words, if the condition (second condition) that the storage amount is equal to or less than a certain amount of full charge and power is being supplied to the external load 5 is satisfied, a request for charging the storage battery 22 by the electric vehicle 3 is transmitted to the management server 4, and a reply is awaited.

[0024] Thereafter, when a notification that matching has been established is received from the management server 4 (S8), the arrival of the electric vehicle 3 is awaited. When the dispatched electric vehicle 3 arrives, the driver or other user operates the charging connector 24 to connect to the electric vehicle 3 (Yes in S9), and communication is initiated with the electric vehicle 3 (S10). Once communication is established (Yes in S11), the charging power source for the storage battery 22 is switched from the private power generation facility 21 to the electric vehicle 3, and the extraction of electricity begins (S12).

[0025] In this way, the independent power supply device 2 switches to an emergency mode in which power consumption is reduced by external operation, and by switching to the emergency mode in the event of a large-scale disaster or the like, power consumption can be reduced and communication functions can be maintained. By switching to the emergency mode, power supply from the electric vehicle 3 is requested when a predetermined condition (second condition) including a condition of the remaining capacity of the storage battery 22 is satisfied, and therefore it is possible to prevent a situation in which the independent power supply device 2 cannot be used in an emergency in which power is required due to a large-scale power outage or the like. Furthermore, even if multiple independent power supplies 2 simultaneously request power supply from the electric vehicle 3, power is supplied from the vehicle, so power can be supplied before the stored power is used up, and power can be supplied without delay.

[0026] 3 is a sequence diagram showing the flow of operation of the independent power supply system 1, and shows the flow of dispatching the electric vehicles 3 in emergency mode. The operation of the system will be described with reference to this diagram. When the disaster prevention base 6 performs an operation to switch each independent power supply 2 to emergency mode (S21), a notification is sent to the management server 4, and the management server 4 issues a request to each independent power supply 2 to switch to emergency mode (S22).

[0027] The independent power supply 2 that receives this transition request transitions to the emergency mode (S23) and sends a reply to the management server 4 notifying it that it has transitioned to the emergency mode (S24). At that time, or thereafter, if a predetermined condition (second condition) is satisfied, i.e., as described above, the remaining charge of the storage battery 22 is equal to or less than the second specified amount and the storage battery 22 is supplying power to the connected external load 5, an electric vehicle dispatch request is executed (S25), and a dispatch request (S26) is sent to the management server 4. The management server 4 that receives the dispatch request reads the registered administrator 3a of the electric vehicle 3 from the vehicle information storage unit 41, and notifies the administrator, for example by mobile phone, by email or the like that a dispatch request for the electric vehicle 3 has occurred (S27).

[0028] Thereafter, the management server 4 requests the manager 3a for the narrowed area to respond as to whether rescue is possible (S28). The manager 3a of the electric vehicle 3 who receives this rescue request responds as to whether it is possible to send the electric vehicle 3 for power supply at the current stage (S29). The management server 4, which has received this reply, performs a matching process to select the most suitable manager 3a from among the managers 3a who have responded that rescue is possible, and when a match is established (S29), notifies the independent power supply unit 2 and the selected manager 3a of the matching establishment information (S31, S32). This matching process is performed for all independent power supply units 2 that have made vehicle dispatch requests. In this way, the manager of the electric vehicle 3 who has been notified of the successful matching has the electric vehicle 3 head to the instructed independent power supply 2, and the independent power supply 2 waits for its arrival (S33). Upon arrival, the electric vehicle 3 starts supplying power to the independent power supply 2.

[0029] In this way, the independent power supply 2 can be switched to emergency mode, which reduces power consumption, by external operation. Therefore, in the event of a widespread power outage due to a large-scale disaster or the like, at least communication functions can be maintained by quickly switching to emergency mode. In addition, when the conditions including the remaining charge of the storage battery 22 satisfy predetermined conditions, a request is made to the management server 4 for power supply by the electric vehicle 3. Even if multiple independent power supply devices 2 simultaneously request power supply by the electric vehicle 3, it is possible to supply power from an external power source before the stored power is used up, making it possible to supply power without delay. Furthermore, a matching process is performed to allocate electric vehicles 3 taking into account travel distance, making it possible to appropriately allocate vehicles to avoid driving unnecessary distances, shortening the time from when a power supply request is made until the electric vehicle 3 arrives, and leaving a large amount of charge. Furthermore, the management server 4 that receives a power supply request from an electric vehicle 3 issues a vehicle allocation request to the manager of the selected electric vehicle 3, so that even if multiple vehicle allocation requests occur simultaneously, vehicles can be allocated according to the request source. In addition, by enabling power supply from the electric vehicle 3, it is possible to prevent a situation in which the independent power supply device 2 becomes unusable when a power source is needed due to the occurrence of a large-scale power outage or the like.

[0030] Next, a flow in which the independent power supply unit 2 requests power supply from the electric vehicle 3 in the normal mode in which the emergency mode is not entered will be described. However, in the above-mentioned emergency mode state, a dispatch request is executed when the stored power amount is 30% or less of a full charge and an external load is connected and being used, but since cases where the vehicle does not switch to emergency mode are often not emergencies, the required condition (first condition) is set to a value stricter than the above-mentioned second condition.

[0031] For example, when a condition (first condition) is satisfied that the amount of stored power in the storage battery 22 is equal to or less than a specified amount (first specified amount) of full charge (for example, 10% or less) and power is being supplied to the external load 5, a dispatch request for an electric vehicle 3 is executed. The operation of the management server 4 that receives the dispatch request is the same as that described above, and a matching process is performed to direct the selected electric vehicle 3 to the request source.

[0032] In this way, even if the system does not switch to emergency mode, when the conditions including the remaining charge of the storage battery 22 satisfy a predetermined condition (first condition), a power supply from the electric vehicle 3 is requested, so that power can be supplied without delay and the independent power supply device can be used continuously. Since the vehicle dispatch requirements are stricter than in the emergency mode, it is possible to minimize power supply requests from the electric vehicles 3. Conversely, in the emergency mode, power supply requests from the electric vehicles 3 are made when the remaining amount of stored electricity is relatively large, so it is possible to prevent a situation in which the independent power supply device 2 becomes unavailable even if multiple power supply requests from the electric vehicles 3 occur simultaneously. The criteria for determining whether or not to make a power supply request by the electric vehicle 3 in the normal mode may be the same as the conditions in the emergency mode.

[0033] In addition, the above embodiment is described under the assumption that the electric vehicle 3 dispatched for power supply is a vehicle managed by an individual or company. However, if the electric vehicle 3 to be dispatched is a vehicle managed by a disaster prevention center 6, the manager of the vehicle is the disaster prevention officer, so there is no need to request the manager whether or not rescue can be performed using the electric vehicle 3, and the management server 4 only performs matching processing. In addition, regardless of whether or not there is a transition to the emergency mode, when the independent power supply device 2 satisfies specified conditions, a power supply request is made by the electric vehicle 3. However, the configuration may be such that the power supply request is made by the electric vehicle 3 only when the independent power supply device 2 has transitioned to the emergency mode and specified conditions are satisfied. [Explanation of symbols]

[0034] 1·· Independent power supply device power supply system, 2·· Independent power supply device, 3·· Electric vehicle, 4·· Management server, 5·· External load, 6·· Disaster prevention base, 21·· Private power generation equipment (power generation equipment), 22·· Storage battery, 29·· Independent power supply device CPU (request determination unit, operation control unit), 30·· Communication unit, 41·· Vehicle information storage unit, 42·· Map information storage unit, 43·· Management server CPU (matching processing unit).

Claims

1. An independent power supply system including a plurality of independent power supply devices each having a storage battery and a power generation device for charging the storage battery, a management server that manages the independent power supply devices via a communication network, and a plurality of electric vehicles capable of charging the independent power supply devices, The independent power supply device has a charging connector for supplying power from the electric vehicle; A communication unit that communicates with the management server; a request determination unit that requests the management server to supply power from the electric vehicle when a predetermined first condition including a remaining charge condition of the storage battery is satisfied; An operation control unit that transitions to an emergency mode in which power consumption is reduced and the device operates under external control in order to maintain communication functions, The independent power supply unit power supply system is characterized in that the management server has a vehicle information storage unit in which each of the electric vehicles and its manager is registered, and when a power supply request is received from the independent power supply unit by the electric vehicle, the management server selects an electric vehicle from the vehicle information storage unit and requests the manager of the selected electric vehicle to dispatch the vehicle for power supply.

2. 2. The independent power supply system according to claim 1, wherein the first condition is that the remaining charge of the storage battery is equal to or less than a predetermined percentage of full charge and the storage battery is supplying power to a connected external load.

3. The independent power supply system of claim 1 or 2, characterized in that, in the emergency mode state, the request judgment unit requests the management server to supply power from an electric vehicle when a predetermined second condition is satisfied that is the same as the first condition or when the remaining charge condition of the storage battery is set to be greater than the first condition.

4. An independent power supply system including a plurality of independent power supply devices each having a storage battery and a power generation device for charging the storage battery, a management server that manages the independent power supply devices via a communication network, and a plurality of electric vehicles capable of charging the independent power supply devices, The independent power supply device has a charging connector for supplying power from the electric vehicle; A communication unit that communicates with the management server; an operation control unit that receives an external instruction and controls transition to an emergency mode in which power consumption is reduced in order to maintain communication functions; a request determination unit that requests the management server to supply power from an electric vehicle when a predetermined condition including a remaining charge condition of the storage battery is satisfied in the emergency mode; the management server has a vehicle information storage unit in which each of the electric vehicles and its manager is registered; An independent power supply system characterized in that, when a power supply request from an electric vehicle is received from the independent power supply, the system selects an electric vehicle from the vehicle information storage unit, and requests the manager of the selected electric vehicle to dispatch the vehicle for power supply.

5. the management server has a map information storage unit that registers the independent power supply device and the registered electric vehicle by position information on a map; a matching processing unit that performs a matching process to calculate a distance by referring to the map information storage unit when selecting the electric vehicle to be directed to the independent power supply device and to determine a dispatched vehicle from the calculated distance information; 5. The independent power supply system according to claim 1, wherein the matching processing unit issues the vehicle dispatch request to a manager of the electric vehicle selected by the matching processing unit.

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