Power Energy Scheduling Method, Device, Control Equipment and Power Energy Network

Abstract

The present invention relates to the technical field of power energy scheduling, and particularly relates to a power energy scheduling method, device, control device, and power energy network. The method includes obtaining an energy transmission request of an electricity-consuming power router in the power energy network. In the power energy network, all target power routers that meet the energy transmission request and have an idle transmission path state with the electricity-consuming power router are determined. Among all the target power routers, the power router with the shortest transmission path is determined as the power-supplying power router. The energy storage device corresponding to the power-supplying power router is controlled to supply power to the energy storage device corresponding to the electricity-consuming power router according to the shortest transmission path, so that the power routers between the energy storage devices can select the best transmission path for rapid power energy scheduling, and the power loss during the transmission process is minimized.

Description

Technical Field

[0001] The present invention relates to the technical field of power energy scheduling, and particularly relates to a power energy scheduling method, device, control equipment and power energy network. Background Art

[0002] The energy Internet is a new type of information-energy integrated wide area network constructed with the concept of the Internet. It takes the large power grid as the backbone network, the microgrid as the local area network, and an open and peer-to-peer information-energy integration as the architecture, realizing two-way on-demand transmission and dynamic balanced use of energy, and can adapt to the access of new energy to the greatest extent. However, in a complex power energy network, it is difficult to make all energy storage devices directly adjacent. Therefore, when transmitting electric energy between energy storage devices, it is necessary to pass through the power routers of other energy storage devices. If the transmission path is too long and too many power routers are passed through, the energy loss during transmission will increase.

[0003] Therefore, how to reduce the energy loss during transmission during power energy scheduling is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a power energy scheduling method, device, control equipment and power energy network to overcome the problem of excessive energy loss during power energy transmission in the current power energy network.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] On the one hand, the present invention provides a power energy scheduling method, including:

[0007] Obtain the energy transmission request of the power router consuming electric energy in the power energy network;

[0008] In the power energy network, determine all target power routers that meet the energy transmission request and the transmission path state between them and the power router consuming electric energy is idle;

[0009] Determine the power router with the shortest transmission path among all the target power routers as the power supply power router;

[0010] Control the energy storage device corresponding to the power supply power router to supply power to the energy storage device corresponding to the power router consuming electric energy according to the shortest transmission path.

[0011] Further, for the above power energy scheduling method, before determining all target power routers that meet the energy transmission request and the transmission path state between them and the power router consuming electric energy is idle in the power energy network, it further includes:

[0012] Obtain the transmission path status of all adjacent power routers in the power grid, so as to determine, according to the transmission path status of the adjacent power routers, the power routers whose transmission path status with the power-consuming power router is idle.

[0013] Further, for the power scheduling method described above, if power is being transmitted between adjacent power routers, it means that the transmission path status of the adjacent power routers is occupied;

[0014] If power is not being transmitted between adjacent power routers, it means that the transmission path status of the adjacent power routers is idle.

[0015] Further, for the power scheduling method described above, before determining all target power routers that meet the energy transmission request and whose transmission path status with the power-consuming power router is idle in the power grid, it further includes:

[0016] Obtain the energy storage information of each power router in the power grid, so as to determine, according to the energy storage information of each power router, the power routers that meet the energy transmission request.

[0017] Further, for the power scheduling method described above, the energy transmission request includes power demand;

[0018] Correspondingly, the energy storage information of each power router includes the power information of each power router.

[0019] Further, for the power scheduling method described above, determining the power router with the shortest transmission path among all the target power routers as the power-supplying power router includes:

[0020] Determine the power router with the shortest transmission path among all the target power routers;

[0021] If the number of power routers with the shortest transmission path among the target power routers is one, then use the power router with the shortest transmission path as the power-supplying power router;

[0022] If the number of power routers with the shortest transmission path among the target power routers is at least two, then determine the power router with the highest available loanable power among the power routers with the shortest transmission path as the power-supplying power router.

[0023] Further, for the power scheduling method described above, controlling the energy storage device corresponding to the power-supplying power router to supply power to the energy storage device corresponding to the power-consuming power router according to the shortest transmission path includes:

[0024] Send the shortest transmission path to the power supply power router and the power consumption power router, so that the power supply power router and the power consumption power router handshake according to the shortest transmission path, and perform power transmission after successful handshake.

[0025] On the other hand, the present invention also provides a power scheduling device, including:

[0026] An acquisition module, configured to acquire an energy transmission request of a power consumption power router in the power network;

[0027] A determination module, configured to determine, in the power network, all target power routers that meet the energy transmission request and whose transmission path status with the power consumption power router is idle; and determine the power router with the shortest transmission path among all the target power routers as the power supply power router;

[0028] A control module, configured to control the energy storage device corresponding to the power supply power router to supply power to the energy storage device corresponding to the power consumption power router according to the shortest transmission path.

[0029] On the other hand, the present invention also provides a power scheduling control device, including a processor and a memory, the processor is connected to the memory:

[0030] Wherein, the processor is configured to call and execute a program stored in the memory;

[0031] The memory is configured to store the program, and the program is at least used to execute the power scheduling method described in any one of the above.

[0032] On the other hand, the present invention also provides a power network, including multiple groups of energy storage systems, and the above-mentioned power scheduling control device;

[0033] Each group of energy storage systems includes a power router and an energy storage device connected to each other;

[0034] The power scheduling control device is connected to the power router.

[0035] Further, for the above-mentioned power network, the power network includes a power local area network.

[0036] The power scheduling method, device, control equipment and power network of the present invention, wherein the method includes obtaining the energy transmission requests of the power routers in the power network, determining all target power routers in the power network that meet the energy transmission requests and whose transmission path status with the power routers of the power consumption is idle, determining the power router with the shortest transmission path among all the target power routers as the power supply power router, and controlling the energy storage device corresponding to the power supply power router to supply power to the energy storage device corresponding to the power router of the power consumption according to the shortest transmission path, so that the power routers between the energy storage devices can select the best transmission path for fast power scheduling, and maximizing the reduction of power loss during the transmission process. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0038] Figure 1 It is a flowchart provided by an embodiment of the power scheduling method of the present invention;

[0039] Figure 2 It is a transmission path diagram provided by an embodiment of the power scheduling method of the present invention;

[0040] Figure 3 It is a schematic structural diagram provided by an embodiment of the power scheduling device of the present invention;

[0041] Figure 4 It is a schematic structural diagram provided by an embodiment of the power scheduling control equipment of the present invention;

[0042] Figure 5 It is a schematic structural diagram provided by an embodiment of the power network of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0043] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present invention.

[0044] Figure 1 It is a flowchart provided by an embodiment of the power scheduling method of the present invention. As Figure 1 shown, this embodiment may include the following steps:

[0045] S11. Obtain the energy transfer request of the power router for power consumption in the power network.

[0046] A power router refers to a device that can achieve multi-directional energy flow and active control of power flow, and is used as an intelligent interface for distributed power sources, reactive power compensation devices, energy storage devices, loads, etc. in the distribution network.

[0047] In this embodiment, when the energy storage device corresponding to a certain power router needs to be powered by other energy storage devices, this power router will send an energy transfer request as a power router for power consumption. In this embodiment, the energy transfer request of this power router for power consumption can be obtained.

[0048] In an alternative embodiment, the energy transfer request may include a power demand. For example, if an energy storage device needs to be powered by other energy storage devices and requires a power support of 7 kW, this energy transfer request can be sent.

[0049] S12. In the power network, determine all target power routers that meet the energy transfer request and whose transmission path status with the power router for power consumption is idle.

[0050] In this embodiment, target power routers are determined in the power network. Among them, the conditions that the target power routers need to meet include: meeting the energy transfer request of the power router for power consumption, and the transmission path status between the target power router and the power router for power consumption is idle.

[0051] In an alternative embodiment, before this step, the transmission path status of all adjacent power routers in the power network can also be obtained, so as to determine the power routers whose transmission path status with the power router for power consumption is idle according to the transmission path status of the adjacent power routers.

[0052] Specifically, after determining the transmission path status of the adjacent power routers, the transmission path status between all power routers in the entire power network can be determined, and then the power routers whose transmission path status with the power router for power consumption is idle can be determined in the power network.

[0053] In an alternative embodiment, the transmission path status of the adjacent power routers can be determined in the following way: if the adjacent power router is performing power transmission, it means that the transmission path status of the adjacent power router is occupied; if the adjacent power router is not performing power transmission, it means that the transmission path status of the adjacent power router is idle.

[0054] Specifically, it can be determined whether power transmission occurs between adjacent power routers. If power transmission occurs between adjacent power routers, it indicates that the transmission path state of the adjacent power routers is occupied. If no power transmission occurs between adjacent power routers, it means that the transmission path state of the adjacent power routers is idle.

[0055] In an alternative embodiment, before this step, the energy storage information of each power router in the power network can also be obtained to determine the power routers that meet the energy transmission request based on the energy storage information of each power router.

[0056] Specifically, in this embodiment, the energy storage information of each power router in the power network can be obtained in advance. The energy storage information of each power router includes the power information of each power router, so as to determine the power routers that meet the energy transmission request based on the energy storage information of each power router. For example, if a certain energy storage device needs to be powered by other energy storage devices and requires a power support of 7 kW, the power routers with power information greater than or equal to 7 kW all meet the energy transmission request.

[0057] S13. Determine the power router with the shortest transmission path among all target power routers as the power supply power router.

[0058] In this embodiment, the power router with the shortest transmission path can be determined from all target power routers, and the power router with the shortest transmission path is used as the power supply power router.

[0059] In an alternative embodiment, determine the power router with the shortest transmission path among all target power routers; if the number of power routers with the shortest transmission path among the target power routers is one, then use the power router with the shortest transmission path as the power supply power router. If the number of power routers with the shortest transmission path among the target power routers is at least two, then determine the power router with the highest available borrowed power among the power routers with the shortest transmission path as the power supply power router.

[0060] Specifically, in this embodiment, the power router with the shortest transmission path will be selected as the power supply power router. However, in some cases, the number of power routers with the shortest transmission path among the target power routers is not unique. Then, the total power reserves of the energy storage devices corresponding to each power router can be further compared, and the power router corresponding to the energy storage device with the highest available borrowed power is used as the power supply power router, that is, the power router with the highest available borrowed power is used to supply power to the energy storage device corresponding to the power-consuming power router.

[0061] S14. Control the energy storage device corresponding to the power supply power router to supply power to the energy storage device corresponding to the power consumption power router according to the shortest transmission path.

[0062] After determining the power supply power router and the power consumption power router, the shortest transmission path can be sent to the power supply power router and the power consumption power router, so that the power supply power router and the power consumption power router shake hands according to the shortest transmission path, and power transmission is carried out after the handshake is successful. It should be noted that when the power supply power router and the power consumption power router shake hands, they follow a preset communication protocol.

[0063] The power energy scheduling method of the present invention obtains the energy transmission request of the power consumption power router in the power energy network. In the power energy network, all target power routers that meet the energy transmission request and whose transmission path status with the power consumption power router is idle are determined. The power router with the shortest transmission path is determined as the power supply power router among all the target power routers, and the energy storage device corresponding to the power supply power router is controlled to supply power to the energy storage device corresponding to the power consumption power router according to the shortest transmission path, so that the power routers between the energy storage devices can select the best transmission path for fast power energy scheduling, and the power loss during the transmission process is minimized.

[0064] Figure 2 It is a transmission path diagram provided by an embodiment of the power energy scheduling method of the present invention. As Figure 2 shown, in a specific embodiment, it includes a total of 10 power routers from the first power router R1 to the tenth power router R10. Specifically, a path L1_10 is set between the first power router R1 and the tenth power router R10, a path L1_3 is set between the first power router R1 and the third power router R3, a path L10_9 is set between the tenth power router R10 and the ninth power router R9, a path L9_8 is set between the ninth power router R9 and the eighth power router R8, and so on, with a total of 12 transmission paths. As Figure 2 shown, the direction indicated by the arrow is the power transmission direction.

[0065] Figure 2 In, if the energy storage device corresponding to the seventh power router R7 needs to be supplied by other energy storage devices, and the power supply power is 7 kW, an energy transmission request can be output. As Figure 2 shown, the following paths can be obtained:

[0066] (1) The first power router R1 → the third power router R3 → the seventh power router R7;

[0067] (2) The second power router R2 → the third power router R3 → the seventh power router R7;

[0068] (3) The ninth power router R9 → the eighth power router R8 → the seventh power router R7;

[0069] (4) The sixth power router R6 → the seventh power router R7;

[0070] (5) The ninth power router R9 → the eighth power router R8 → the sixth power router R6 → the seventh power router R7;

[0071] (6) The fifth power router R5 → the sixth power router R6 → the seventh power router R7;

[0072] (7) The second power router R2 → the third power router R3.

[0073] Among them, if the energy storage information of the third power router R3 is less than 7 kW, then path (7) does not meet the requirements; if the path of the second power router R2 → the third power router R3 is in an occupied state, then (2) does not meet the requirements. By comparing the path lengths of the remaining 5 non-occupied paths, it is obtained that the length L6_7 of path (4) is the smallest, so the path of the sixth power router R6 → the seventh power router R7 is selected for power transmission.

[0074] Based on a general inventive concept, this embodiment also provides a power scheduling device for implementing the above method embodiment. Figure 3 It is a schematic structural diagram provided by an embodiment of the power scheduling device of the present invention. As Figure 3 shown, the device of this embodiment includes:

[0075] An acquisition module 21, configured to acquire an energy transmission request of a power router consuming electricity in a power network;

[0076] A determination module 22, configured to determine, in the power network, all target power routers that meet the energy transmission request and whose transmission path status with the power router consuming electricity is idle; and determine the power router with the shortest transmission path among all target power routers as the power supply power router;

[0077] A control module 23, configured to control the energy storage device corresponding to the power supply power router to supply power to the energy storage device corresponding to the power router consuming electricity according to the shortest transmission path.

[0078] In an optional embodiment, the acquisition module 21 is further configured to acquire the transmission path status of all adjacent power routers in the power network, so as to determine the power routers whose transmission path status with the power router consuming electricity is idle according to the transmission path status of the adjacent power routers.

[0079] In an alternative embodiment, if adjacent power routers perform power transmission, it indicates that the transmission path status of the adjacent power routers is occupied; if adjacent power routers do not perform power transmission, it indicates that the transmission path status of the adjacent power routers is idle.

[0080] In an alternative embodiment, the obtaining module 21 is further configured to obtain the energy storage information of each power router in the power network, so as to determine the power routers that meet the energy transmission request according to the energy storage information of each power router.

[0081] In an alternative embodiment, the energy transmission request includes a power demand; correspondingly, the energy storage information of each power router includes the power information of each power router.

[0082] In an alternative embodiment, the determining module 22 is specifically configured to determine the power router with the shortest transmission path among all target power routers; if the number of power routers with the shortest transmission path among the target power routers is one, the power router with the shortest transmission path is used as the power supply power router; if the number of power routers with the shortest transmission path among the target power routers is at least two, the power router with the highest available power for lending among the power routers with the shortest transmission path is determined as the power supply power router.

[0083] In an alternative embodiment, the control module 23 is specifically configured to send the shortest transmission path to the power supply power router and the power consumption power router, so that the power supply power router and the power consumption power router shake hands according to the shortest transmission path, and perform power transmission after the handshake is successful.

[0084] Regarding the device in the above embodiments, the specific manners in which each module performs operations have been described in detail in the embodiments related to the method, and will not be elaborated here.

[0085] Based on a general inventive concept, this embodiment also provides a power scheduling device for implementing the above method embodiment. Figure 4 is a schematic structural diagram provided by an embodiment of the power scheduling control device of the present invention. As Figure 4 shown, the power scheduling control device of this embodiment includes a processor 31 and a memory 32, and the processor 31 is connected to the memory 32. Among them, the processor 31 is configured to call and execute the program stored in the memory 32; the memory 32 is configured to store the program, and the program is at least used to execute the power scheduling method in the above embodiments.

[0086] Based on a general inventive concept, this embodiment also provides a power network for implementing the above method embodiment. Figure 5 is a schematic structural diagram provided by an embodiment of the power network of the present invention. AsFigure 5 As shown, the power network of this embodiment includes multiple groups of energy storage systems 41 and the power dispatching control device 42 of the above embodiment. Each group of energy storage systems 41 includes an interconnected power router 411 and an energy storage device 412; the power dispatching control device 42 is connected to the power router 411.

[0087] In an alternative embodiment, the power network includes a power local area network.

[0088] In an alternative embodiment, when the energy storage device 412 is charging or charging other devices, it is a DC / DC conversion.

[0089] It can be understood that the same or similar parts in the above embodiments can be referred to each other, and the content not detailed in some embodiments can be seen in the same or similar content in other embodiments.

[0090] It should be noted that in the description of the present invention, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "a plurality" refers to at least two.

[0091] Any process or method description shown in the flowchart or described in other ways herein can be understood as representing a module, segment, or part of code including one or more executable instructions for implementing a specific logical function or process. And the scope of the preferred embodiments of the present invention includes additional implementations, where the functions can be executed in a substantially simultaneous manner or in the reverse order according to the functions involved, rather than in the order shown or discussed, which should be understood by those skilled in the technical field to which the embodiments of the present invention belong.

[0092] It should be understood that each part of the present invention can be implemented by hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, any one or a combination of the following well-known technologies in the art can be used: discrete logic circuits with logic gate circuits for implementing logical functions on data signals, application-specific integrated circuits with appropriate combinational logic gate circuits, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0093] Those of ordinary skill in the art of this technology can understand that all or part of the steps carried by the methods of the above embodiments can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiments.

[0094] In addition, each functional unit in various embodiments of the present invention may be integrated into a processing module, or each unit may exist physically alone, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. When the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0095] The above-mentioned storage medium may be a read-only memory, a magnetic disk, an optical disc, etc.

[0096] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0097] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. An electric energy scheduling method, characterized in that, it includes: Obtain the energy transmission requests of the power routers in the electric energy network; In the electric energy network, determine all target power routers that meet the energy transmission requests and whose transmission path status with the power routers of the power consumption is idle; Determine the power router with the shortest transmission path among all the target power routers as the power supply power router; Control the energy storage device corresponding to the power supply power router to supply power to the energy storage device corresponding to the power consumption power router according to the shortest transmission path; Before determining all the target power routers that meet the energy transmission requests and whose transmission path status with the power routers of the power consumption is idle in the electric energy network, it further includes: obtaining the energy storage information of each power router in the electric energy network, so as to determine the power routers that meet the energy transmission requests according to the energy storage information of each power router; Determining the power router with the shortest transmission path among all the target power routers as the power supply power router includes: determining the power router with the shortest transmission path among all the target power routers; if the number of power routers with the shortest transmission path among the target power routers is one, then use the power router with the shortest transmission path as the power supply power router; if the number of power routers with the shortest transmission path among the target power routers is at least two, then determine the power router with the highest available power for lending among the power routers with the shortest transmission path as the power supply power router.

2. The electric energy scheduling method according to claim 1, characterized in that, before determining all the target power routers that meet the energy transmission requests and whose transmission path status with the power routers of the power consumption is idle in the electric energy network, it further includes: Obtain the transmission path status of all adjacent power routers in the electric energy network, so as to determine the power routers whose transmission path status with the power routers of the power consumption is idle according to the transmission path status of the adjacent power routers.

3. The electric energy scheduling method according to claim 2, characterized in that, If the adjacent power routers perform electric energy transmission, it means that the transmission path status of the adjacent power routers is occupied; If the adjacent power routers do not perform electric energy transmission, it means that the transmission path status of the adjacent power routers is idle.

4. The electric energy scheduling method according to claim 1, characterized in that, The energy transmission request includes power demand; Correspondingly, the energy storage information of each power router includes the power information of each power router.

5. The electric energy scheduling method according to claim 1, characterized in that, Controlling the energy storage device corresponding to the power supply power router to supply power to the energy storage device corresponding to the power consumption power router according to the shortest transmission path includes: Send the shortest transmission path to the power supply power router and the power consumption power router, so that the power supply power router and the power consumption power router handshake according to the shortest transmission path, and perform power transmission after successful handshake.

6. An electric energy scheduling device, characterized in that it includes: an acquisition module, configured to acquire an energy transmission request of a power consumption power router in an electric energy network; a determination module, configured to determine all target power routers in the electric energy network that meet the energy transmission request and whose transmission path status with the power consumption power router is idle; determine the power router with the shortest transmission path among all the target power routers as the power supply power router; a control module, configured to control the energy storage device corresponding to the power supply power router to supply power to the energy storage device corresponding to the power consumption power router according to the shortest transmission path; the acquisition module is further configured to acquire the transmission path status of all adjacent power routers in the electric energy network, so as to determine the power routers whose transmission path status with the power consumption power router is idle according to the transmission path status of the adjacent power routers; the determination module is specifically configured to determine the power router with the shortest transmission path among all target power routers; if the number of power routers with the shortest transmission path among the target power routers is one, use the power router with the shortest transmission path as the power supply power router; if the number of power routers with the shortest transmission path among the target power routers is at least two, determine the power router with the highest available lent power among the power routers with the shortest transmission path as the power supply power router.

7. An electric energy scheduling control device, characterized in that it includes a processor and a memory, and the processor is connected to the memory: wherein, the processor is configured to call and execute a program stored in the memory; the memory is configured to store the program, and the program is at least used to execute the electric energy scheduling method according to any one of claims 1-5.

8. An electric energy network, characterized in that it includes multiple groups of energy storage systems, and the electric energy scheduling control device according to claim 7; each group of energy storage systems includes a power router and an energy storage device connected to each other; the electric energy scheduling control device is connected to the power router.

9. According to the electric energy network described in claim 8, characterized in that the electric energy network includes an electric energy local area network.

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