Power supply network system using portable distributed power sources and control method thereof

Abstract

During disasters, widespread power outages can occur, leading to delays and shortages in electricity supply. Furthermore, conventional power supply methods rely on fixed infrastructure, making it difficult to flexibly respond to fluctuations in electricity demand. [Solution] The present invention provides a power supply system that deploys or guides mobile distributed power sources to power demand locations based on power demand information relating to power demand locations. The system comprises distributed power sources, a control device, a communication network, and power demand points. The control device determines the placement or guidance of the distributed power sources based on the location information and power output of the distributed power sources and the power output required by the power demand points.

Description

Technical Field

[0001] The present invention relates to a power supply technology using a movable distributed power source, and particularly to a power supply network system that arranges or guides distributed power sources based on power demand information for a plurality of power demand points.

Background Art

[0002] Conventionally, power supply during disasters has relied on generators and fixed battery facilities, making rapid power supply difficult. Also, although there is a technology that uses the battery of an electric vehicle as a power source, it has remained at individual use, and the networking for efficiently operating multiple power sources has not been sufficient.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Patent Document 3

Patent Document 4

[0004] [Non-Patent Document 1] Vehicle-to-Grid (V2G) Technology: Electric Vehicles as Distributed Energy Storage (Summary) This research concerns technology that utilizes electric vehicle batteries as a distributed power source and connects them to the power grid for power supply or energy storage. [Overview of the Initiative] [Problems that the invention aims to solve]

[0005] It is difficult to supply electricity quickly and efficiently to multiple power demand points. [Means for solving the problem]

[0006] Based on electricity demand information, mobile distributed power sources will be deployed or guided to the system. [Effects of the Invention]

[0007] According to the present invention, by arranging or guiding mobile distributed power sources based on power demand information regarding power demand points, it is possible to realize demand-following power supply, which could not be achieved with conventional fixed power supply configurations.

[0008] Specifically, the present invention enables efficient power distribution while reducing power supply delays by arranging or guiding distributed power sources according to the required amount of power, required time, and priority of each demand point when supplying power to multiple power demand points.

[0009] Furthermore, since the present invention employs a configuration that controls the power supply based on the power demand side rather than the power supply side, it can provide flexible power supply according to the situation, even in environments where demand changes dynamically, such as during a disaster.

[0010] Furthermore, the present invention can realize dynamic control including the movement of distributed power sources by not only arranging distributed power sources but also performing guidance including start-up instructions, determination of movement routes, start-up requests or approval requests.

[0011] Thereby, compared with a configuration in which only a power source is installed, the time until the start of power supply can be shortened, and limited power resources can be effectively utilized.

[0012] In addition, since the present invention has a configuration for managing a plurality of distributed power sources as a network and distributing power supply to a plurality of power demand points, improvement of supply capacity and ensuring of redundancy can be achieved compared with supply by a single power source.

[0013] Furthermore, the present invention can supply power to a single power demand point by combining a plurality of distributed power sources and can also cope with large-scale power demands.

[0014] In addition, since the present invention has a configuration including participating power sources, existing resources such as owners of electric vehicles and corporate vehicles can be utilized, and the construction cost of a new power infrastructure can be reduced.

[0015] Thereby, the present invention can realize rapid power supply in case of disasters and can also be used as a new power supply infrastructure that effectively utilizes distributed power sources even in normal times.

[0016] As described above, different from the conventional power source arrangement type technology, the present invention has a remarkable effect in realizing a demand-following type power supply that dynamically controls power sources according to power demands.

Brief Description of the Drawings

[0017] [Figure 1]FIG. 1 is an overall configuration diagram showing the relationship among distributed power sources, a control device, a communication network, and power demand sites in the power supply system of the present invention. [Figure 2] FIG. 2 is a diagram showing an example of arranging or guiding distributed power sources to a plurality of power demand sites during a disaster in the power supply system of the present invention. [Figure 3] FIG. 3 is a diagram showing the network configuration between a power demand site and a distributed power source in the power supply system of the present invention. [Figure 4] FIG. 4 is a flowchart showing the flow of control processing in the power supply system of the present invention. [Figure 5] FIG. 5 is a diagram showing an optimization process for determining the arrangement or guidance of distributed power sources in the power supply system of the present invention. [Figure 6] FIG. 6 is a diagram showing the configuration of participating power sources in the power supply system of the present invention. [Figure 7] FIG. 7 is a diagram showing a configuration in which a plurality of distributed power sources in the power supply system of the present invention are aggregated to perform power supply. [Figure 8] FIG. 8 is a diagram showing operation switching during normal times, disasters, and restoration in the power supply system of the present invention.

Embodiments for Carrying Out the Invention

[0018] Brief Explanation of the Drawings FIG. 1: Overall System Configuration Diagram FIG. 2: Diagram for Use during Disasters FIG. 3: Network Configuration Diagram FIG. 4: Control Flow Diagram FIG. 5: Optimization Process Diagram FIG. 6: Participating Power Source Configuration Diagram FIG. 7: Power Aggregation Diagram FIG. 8: Operation Switching Diagram

[0019] <^ FIG. 1: Overall Configuration As shown in FIG. 1, the power supply system of the present invention includes a distributed power source (1), a control device (2), a communication network (3), and a power demand site (4).

[0020] The control device (2) is connected to distributed power sources (1) and power demand points (4) via a communication network (3).

[0021] The control device (2) acquires power demand information regarding power demand points (4) and status information of distributed power sources (1), and determines the arrangement or induction of the distributed power sources (1).

[0022] Figure 2: Use cases during disasters As shown in Figure 2, the power supply system of the present invention directs distributed power sources (1) to power demand points (4) such as evacuation centers, hospitals, and communication base stations during a disaster in which a power outage occurs.

[0023] This makes it possible to quickly provide power during disasters, which would otherwise be difficult to do with conventional fixed power sources.

[0024] Figure 3: Network Configuration As shown in Figure 3, the power supply system of the present invention manages multiple power demand points (4) and multiple distributed power sources (1) as a network.

[0025] The control device (2) achieves an overall efficient power supply by allocating an appropriate distributed power source (1) to each power demand point (4).

[0026] Figure 4: Control Flow As shown in Figure 4, the power supply system of the present invention sequentially executes the following processes: demand generation (40), information acquisition (41), candidate extraction (42), optimization (43), placement or guidance (44), and power supply (45).

[0027] This enables appropriate control of distributed power sources (1) in accordance with electricity demand.

[0028] Figure 5: Optimization process As shown in Figure 5, the control device (2) determines the placement or induction of the distributed power sources (1) based on distance (50), remaining power (51), required power (52), arrival time (53), and priority (54).

[0029] This makes it possible to efficiently utilize the limited distributed power sources (1).

[0030] Figure 6: Participating power sources As shown in Figure 6, the power supply system of the present invention includes a participating power source database (15) for registering participating power sources such as EV owners, corporate vehicles, rental cars, and portable power sources.

[0031] Distributed power sources (1) are registered in the participating power source database (15) and participate in power supply based on the approval of the owner.

[0032] Figure 7: Power Consolidation As shown in Figure 7, multiple distributed power sources (1) are integrated by an aggregation device (71) to supply power to a single power demand point (4).

[0033] This will make it possible to respond flexibly to large-scale electricity demands.

[0034] Figure 8: Operational Switching As shown in Figure 8, the power supply system of the present invention has operating states for normal times (80), during disasters (81), and during recovery (82).

[0035] In the event of a disaster, the deployment or induction of distributed power sources (1) will be carried out based on the priority of electricity demand. [Examples]

[0036] The following describes embodiments of the present invention.

[0037] In an area where a power outage has occurred due to a disaster, multiple power demand points (4) are assumed to exist, including evacuation centers, hospitals, and communication base stations.

[0038] The control device (2) acquires information regarding the required amount of power and priority at each power demand point (4).

[0039] Additionally, multiple electric vehicles exist as distributed power sources (1), and their location information and remaining power are acquired.

[0040] The control device (2) determines the placement or induction of distributed power sources (1) to each power demand point (4) based on distance (50), remaining power (51), required power (52), arrival time (53), and priority (54).

[0041] For example, high-priority hospitals are allocated multiple distributed power sources (1), and evacuation centers are provided with distributed power sources (1) according to their power needs.

[0042] The distributed power source (1) moves based on a dispatch order from the control device (2) and begins supplying power at the power demand point (4).

[0043] This allows for power to be supplied in a short time after a power outage occurs. [Industrial applicability]

[0044] This invention relates to a power supply technology using mobile distributed power sources and can be used in the fields of local government, disaster prevention, power, communications, and transportation.

[0045] In particular, the present invention can be used as infrastructure to rapidly supply power to power demand points such as evacuation centers, medical facilities, and communication equipment in response to power outages during disasters.

[0046] Furthermore, since the present invention has a configuration that manages multiple distributed power sources as a network and dynamically supplies power according to power demand, it can be used as a means of effectively utilizing distributed energy even during normal times.

[0047] Furthermore, the present invention can utilize existing resources such as electric vehicles, plug-in hybrid vehicles, and portable storage batteries, and can be widely used in new business fields such as power supply services, supply and demand adjustment services, and disaster relief services. [Explanation of symbols]

[0048] 1 Distributed power supply 2 Control device 3. Communication Network 4 Electricity demand point 15. Participating Power Source Database 40 Demand arises 41 Information acquisition 42 Candidate Selection 43 Optimization 44. Deployment or Guidance 45 Power supply 50 distance 51 Remaining power amount 52 Required power amount 53 Arrival time 54 Priority 55 Allocation Results 60 EV Owners 61 Company Vehicles 62 Rental Car 63 Portable power supply 71 Aggregation device 80 peacetime 81. During a disaster 82 During recovery

Claims

1. A power supply system that supplies power to multiple power demand points, An acquisition means for acquiring power demand information including location information, required power amount, required time, and priority for the aforementioned multiple power demand points, Multiple portable distributed power sources, A participating power database in which at least some of the aforementioned multiple mobile distributed power sources are registered as participating power sources that can participate in power supply based on the approval of the owner, Control means and Equipped with, The control means is The system acquires status information including location information, remaining power, travel distance, and reachable time for the aforementioned multiple mobile distributed power sources. Based on the aforementioned power demand information, status information, and information about the participating power sources registered in the participating power source database, candidate distributed power sources are extracted. An optimization process based on the distance between the power demand point and the distributed power source, the remaining power, the required power, the arrival time, and the priority is used to generate the allocation result of the distributed power source to each power demand point. Based on the allocation results, a dispatch request or approval request is made to the holder of the participating power source, and based on the holder's approval of the dispatch request or approval request, the arrangement or guidance of the distributed power source is determined. A power supply system characterized by the following features.

2. The power supply system according to claim 1, characterized in that the mobile distributed power source is an electric vehicle, a plug-in hybrid vehicle, a portable battery, a vehicle equipped with a generator, or a combination thereof.

3. The power supply system according to claim 1, characterized in that the control means manages the plurality of power demand points and the plurality of mobile distributed power sources as a network and distributes the distributed power sources to each power demand point.

4. The power supply system according to Claim 1, characterized in that the arrangement or guidance includes determining the movement path of distributed power sources, issuing dispatch instructions, presenting recommended routes, requesting dispatch, or requesting approval.

5. The power supply system according to Claim 1, characterized in that the participating power sources registered in the participating power source database include at least one of power sources owned by electric vehicle owners, corporate vehicles, rental cars, and portable power sources.

6. The power supply system according to claim 1, characterized in that the control means performs power aggregation control to supply power to a single power demand point by combining a plurality of distributed power sources.

7. The power supply system according to Claim 1, characterized in that the control means determines the destination of power supply based on the priority in the event of a disaster or a power supply shortage.

8. The power supply system according to claim 1, characterized in that the control means transmits and receives information with the distributed power source and the power demand point via a communication network.

9. The power supply system according to Claim 1, wherein the power supply system has operating states for normal times, during disasters, and during recovery, and in the event of a disaster, it performs the arrangement or guidance of the distributed power sources based on the priority.

10. A power supply method for supplying power to multiple power demand points, A step of acquiring power demand information including location information, required power amount, required time, and priority for the aforementioned multiple power demand points, The process of obtaining information about a participating power source from a participating power source database in which at least some of multiple mobile distributed power sources are registered as participating power sources that can participate in power supply based on the approval of the owner, A step of acquiring status information including location information, remaining power, travel distance and reachable time for the plurality of mobile distributed power sources, A step of extracting candidate distributed power sources based on the aforementioned power demand information, status information, and information regarding participating power sources, A step of generating the allocation result of the distributed power sources to each power demand point by performing an optimization process based on the distance between the power demand point and the distributed power source, the remaining power amount, the required power amount, the arrival time, and the priority, Based on the allocation results, the process involves making a dispatch request or requesting approval from the owner of the participating power source, A step of determining the arrangement or guidance of the distributed power sources based on the approval of the owner to the aforementioned dispatch request or approval request, A power supply method characterized by including the following.

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