Multi-node photovoltaic energy storage direct-flexible system and its energy storage scheduling method

Abstract

The present invention provides a multi-node photovoltaic, storage, direct and flexible system and its energy storage scheduling method, including multiple photovoltaic, storage, direct and flexible nodes, each node including a node data acquisition module for acquiring the power generation of the current photovoltaic, storage, direct and flexible node within a preset sampling interval; a regional data acquisition module for acquiring the power consumption data of the first power supply area of ​​the current photovoltaic, storage, direct and flexible node within a preset sampling interval; an energy storage module and an energy conversion module are also arranged between two adjacent nodes; the energy storage module is configured as a photovoltaic, storage, direct and flexible node, and transmits the power generation of the current photovoltaic, storage, direct and flexible node to the energy storage module at a preset ratio within a preset time according to the power consumption data obtained by the regional data acquisition module; the energy conversion module has a first configuration and a second configuration, the first configuration converts energy from an energy storage node to the energy storage module connected to it and supplies it to another photovoltaic, storage, direct and flexible system until its energy storage volume ratio reaches a preset value; the second configuration converts energy from the first power supply area of ​​the current photovoltaic, storage, direct and flexible node to the second power supply area.

Description

Technical Field

[0001] The present invention belongs to the technical field of energy storage and scheduling, and specifically relates to a multi-node photovoltaic storage direct-flexible system and an energy storage scheduling method thereof. Background Art

[0002] PEDF is the abbreviation of the four technologies of solar photovoltaic (Photovoltaic), energy storage (Energy storage), direct current (Direct current) and flexibility (Flexibility) in the field of construction. It combines photovoltaic with modular buildings under the integrated carbon emission supervision of "flexible control algorithm and platform" to achieve photovoltaic power generation, and uses modular "photovoltaic storage direct current and flexible" energy storage boxes to ensure energy self-sufficiency. At the same time, it adopts flexible control strategies to ensure safe and intelligent electricity use and realize intelligent operation of temporary buildings. In view of this, a multi-node photovoltaic storage direct current and flexible system and its energy storage scheduling method are provided. Summary of the invention

[0003] To this end, the present invention provides a multi-node photovoltaic energy storage direct-flexible system and an energy storage scheduling method thereof.

[0004] A first aspect of the present invention provides a multi-node PV-storage direct-flexible system, comprising a plurality of PV-storage direct-flexible nodes, wherein each node comprises:

[0005] A node data acquisition module is configured to obtain the power generation of the current photovoltaic storage direct flexible node within a preset sampling interval, and is configured to obtain the average illuminance of the current photovoltaic storage direct flexible node and the illuminance of all the sampling intervals;

[0006] A regional data acquisition module is configured to obtain power consumption data of a first power supply area of ​​the current photovoltaic storage direct flexible node within a preset sampling interval, determine the power consumption data and peaks and troughs, and is also configured to obtain a second power supply area that can provide energy for the current photovoltaic storage direct flexible node within a maximum threshold of its energy storage volume ratio;

[0007] An energy storage module and an energy conversion module are also provided between two adjacent optical storage direct flexible nodes;

[0008] The energy storage module is configured as a photovoltaic storage direct flexible node, which transmits the current power generation of the photovoltaic storage direct flexible node to the energy storage module at a preset ratio within a preset time according to the power consumption data obtained by the regional data acquisition module;

[0009] The energy conversion module has a first configuration and a second configuration, wherein the first configuration is to convert energy from the energy storage module connected to one energy storage node to supply it to another solar-storage-direct-flexible system according to the obtained energy storage volumetric rate until the energy storage volumetric rate reaches a preset value;

[0010] The second configuration is to convert the energy from the first power supply area of ​​the current solar-storage direct-flexible node to the second power supply area according to the obtained energy storage volume ratio;

[0011] It also includes a server, which obtains data from the node data acquisition module and the regional data acquisition module for executing the scheduling of the energy storage module and the energy conversion module.

[0012] Furthermore, the server is also configured to perform advance scheduling, and after obtaining the periodic statistical data of the node data acquisition module and the regional data acquisition module, obtain the peak power consumption occurrence rate of the current photovoltaic storage direct and flexible node within a preset time period and the volumetric efficiency trough occurrence rate of a preset time interval, and respond to the energy storage module and the energy conversion module in advance according to the occurrence rate to perform scheduling.

[0013] Furthermore, it also includes a log generation module that stores and generates data logs.

[0014] Furthermore, it also includes a verification module, which is used to verify the consistency of the volume ratio and log of the current optical storage direct flexible node. If the error is above a preset value, a request is sent to the server to perform verification.

[0015] Furthermore, it also includes a configuration module, which sets the sampling interval and sampling time of the node data acquisition module.

[0016] A second aspect of the present invention provides an energy storage scheduling method for a multi-node photovoltaic storage direct-flexible system, comprising the following steps:

[0017] When the energy storage volume ratio ratio in any monitoring node is higher than the preset value, a corresponding node is dispatched from other monitoring nodes;

[0018] The energy storage volume ratio is calculated by the following formula:

[0019] k = nT / N;

[0020] Among them, K is the energy storage volume ratio, n is the time power generation of interval sampling, T is the variance of multiple interval sampling, and N is the maximum energy storage capacity of the node. After calculating the volume ratio of the node, the difference between the capacity demand and the actual capacity of the corresponding node in the node can be inferred based on its volume ratio;

[0021] When scheduling is performed, it is implemented through the following steps:

[0022] Calculate the first node volume ratio of the monitoring node. If the volume ratio is higher than a preset value, dispatch a node from other monitoring nodes whose second node volume ratio is greater than or equal to the difference between the first node volume ratio and the preset volume ratio, but the second node volume ratio is not greater than 2 times the first node volume ratio;

[0023] If the floor area ratio is lower than the preset value, and the sum of the floor area ratios of other nodes of this node is less than the preset floor area ratio, and after eliminating any of the floor area ratios, the sum of the floor area ratios is still less than the sum of the preset floor area ratios, then the node is marked as a schedulable node.

[0024] A third aspect of the present invention provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the method according to the second aspect of the present invention is implemented.

[0025] A fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method of the second aspect of the present invention.

[0026] The above technical solution of the present invention has the following advantages compared with the prior art:

[0027] The present invention sets up a photovoltaic, energy-storage, direct-flexible system at each node, and the server is also configured to perform advance scheduling. After acquiring periodic statistical data from the node data acquisition module and the regional data acquisition module, the peak power consumption occurrence rate of the current photovoltaic, energy-storage, direct-flexible node within a preset time period and the trough occurrence rate of the volume ratio at a preset time interval are obtained. According to the occurrence rates, the energy storage module and the energy conversion module are responded to in advance to perform scheduling, and the server executes the scheduling of power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of module connection of the system provided in Embodiment 1 of the present invention.

[0029] Figure 2 It is a schematic diagram of an electronic device provided in Embodiment 2 of the present invention.

[0030] Among them, 30, processor; 31, memory; 32, communication interface; 33, bus. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment 1

[0033] A first aspect of the present invention provides a multi-node PV-storage direct-flexible system, comprising a plurality of PV-storage direct-flexible nodes, wherein each node comprises:

[0034] A node data acquisition module is configured to obtain the power generation of the current photovoltaic storage direct flexible node within a preset sampling interval, and is configured to obtain the average illuminance of the current photovoltaic storage direct flexible node and the illuminance of all the sampling intervals;

[0035] A regional data acquisition module is configured to obtain power consumption data of a first power supply area of ​​the current photovoltaic storage direct flexible node within a preset sampling interval, determine the power consumption data and peaks and troughs, and is also configured to obtain a second power supply area that can provide energy for the current photovoltaic storage direct flexible node within a maximum threshold of its energy storage volume ratio;

[0036] An energy storage module and an energy conversion module are also provided between two adjacent optical storage direct flexible nodes;

[0037] The energy storage module is configured as a photovoltaic storage direct flexible node, which transmits the current power generation of the photovoltaic storage direct flexible node to the energy storage module at a preset ratio within a preset time according to the power consumption data obtained by the regional data acquisition module;

[0038] The energy conversion module has a first configuration and a second configuration, wherein the first configuration is to convert energy from the energy storage module connected to one of the solar-storage direct-flexible nodes to supply it to another solar-storage direct-flexible node according to the obtained energy storage volumetric rate until the energy storage volumetric rate reaches a preset value;

[0039] The second configuration is to convert the energy from the first power supply area of ​​the current solar-storage direct-flexible node to the second power supply area according to the obtained energy storage volume ratio;

[0040] It also includes a server, which obtains data from the node data acquisition module and the regional data acquisition module for executing the scheduling of the energy storage module and the energy conversion module.

[0041] Furthermore, the server is also configured to perform advance scheduling, and after obtaining the periodic statistical data of the node data acquisition module and the regional data acquisition module, obtain the peak power consumption occurrence rate of the current photovoltaic storage direct and flexible node within a preset time period and the volumetric efficiency trough occurrence rate of a preset time interval, and respond to the energy storage module and the energy conversion module in advance according to the occurrence rate to perform scheduling.

[0042] Furthermore, it also includes a log generation module that stores and generates data logs.

[0043] Furthermore, it also includes a verification module, which is used to verify the consistency of the volume ratio and log of the current optical storage direct flexible node. If the error is above a preset value, a request is sent to the server to perform verification.

[0044] Furthermore, it also includes a configuration module, which sets the sampling interval and sampling time of the node data acquisition module.

[0045] A second aspect of the present invention provides an energy storage scheduling method for a multi-node photovoltaic storage direct-flexible system, characterized in that it comprises the following steps:

[0046] The steps include:

[0047] When the energy storage volume ratio ratio in any monitoring node is higher than a preset value, a corresponding node is dispatched from other monitoring nodes;

[0048] The energy storage volume ratio is calculated by the following formula:

[0049] k = nT / N;

[0050] Among them, K is the energy storage volume ratio, n is the time power generation of interval sampling, T is the variance of multiple interval sampling, and N is the maximum energy storage capacity of the node. After calculating the volume ratio of the node, the difference between the capacity demand and the actual capacity of the corresponding node in the node can be inferred based on its volume ratio;

[0051] When scheduling is performed, it is implemented through the following steps:

[0052] Calculate the first node volume ratio of the monitoring node. If the volume ratio is higher than a preset value, dispatch a node from other monitoring nodes whose second node volume ratio is greater than or equal to the difference between the first node volume ratio and the preset volume ratio, but the second node volume ratio is not greater than 2 times the first node volume ratio;

[0053] If the floor area ratio is lower than the preset value, and the sum of the floor area ratios of other nodes of this node is less than the preset floor area ratio, and after eliminating any of the floor area ratios, the sum of the floor area ratios is still less than the sum of the preset floor area ratios, then the node is marked as a schedulable node.

[0054] The present invention realizes the dynamic adjustment and balancing process among multiple nodes.

[0055] Embodiment 2

[0056] Combination Figure 2 As shown, an embodiment of the present disclosure provides an electronic device, including a processor 30 and a memory 31. Optionally, the electronic device may also include a communication interface 32 and a bus 33. The processor 30, the communication interface 32, and the memory 31 may communicate with each other through the bus 33. The communication interface 32 may be used for information transmission. The processor 30 may call the logic instructions in the memory 31 to execute the method of the above-mentioned embodiment 1.

[0057] An embodiment of the present disclosure provides a storage medium storing computer executable instructions, wherein the computer executable instructions are configured to execute the method as described in the first embodiment.

[0058] The above-mentioned storage medium may be a transient computer-readable storage medium or a non-transient computer-readable storage medium. Non-transient storage media include: USB flash drives, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks or optical disks, and other media that can store program codes, which may also be transient storage media.

[0059] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible changes. Unless explicitly required, separate components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of one or more associated listings. In addition, when used in this application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the presence of other identical elements in the process, method or device including the elements. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can refer to the description of the method part.

[0060] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these effects are performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods for each specific application to implement the described effects, but such implementations should not be considered to exceed the scope of the embodiments of the present disclosure. The technicians may clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described devices, devices and units may refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0061] The flowchart and block diagram in the accompanying drawings show the possible architecture, role and operation of the device, method and computer program product according to the embodiment of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical role. In some alternative implementations, the role marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed in parallel, and they can sometimes be executed in the opposite order, which can depend on the role involved. In the description corresponding to the flowchart and the block diagram in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in a different order from the order disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed in parallel, and they can sometimes be executed in the opposite order, which can depend on the role involved. Each block in the block diagram and / or flowchart, and combinations of blocks in the block diagram and / or flowchart, may be implemented by a dedicated hardware-based device that performs the specified role or action, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A multi-node PV-storage direct-flexible system, characterized in that: It includes multiple optical storage direct flexible nodes, each of which includes: A node data acquisition module is configured to obtain the power generation of the current photovoltaic storage direct flexible node within a preset sampling interval, and is configured to obtain the average illuminance of the current photovoltaic storage direct flexible node and the illuminance of all the sampling intervals; A regional data acquisition module is configured to obtain power consumption data of a first power supply area of ​​the current photovoltaic storage direct flexible node within a preset sampling interval, determine the power consumption data and peaks and troughs, and is also configured to obtain a second power supply area where the current photovoltaic storage direct flexible node provides energy within a maximum threshold of its energy storage volume ratio; An energy storage module and an energy conversion module are also provided between two adjacent optical storage direct flexible nodes; The energy storage module is configured as a photovoltaic storage direct flexible node, which transmits the current power generation of the photovoltaic storage direct flexible node to the energy storage module at a preset ratio within a preset time according to the power consumption data obtained by the regional data acquisition module; The energy conversion module has a first configuration and a second configuration, wherein the first configuration is to convert energy from the energy storage module connected to one of the photovoltaic storage direct-flexible nodes to supply it to another photovoltaic storage direct-flexible node according to the obtained energy storage volumetric ratio until the energy storage volumetric ratio reaches a preset value; The second configuration is to convert the energy from the first power supply area of ​​the current solar-storage direct-flexible node to the second power supply area according to the obtained energy storage volume ratio; It also includes a server, which obtains data from the node data acquisition module and the regional data acquisition module for executing the scheduling of the energy storage module and the energy conversion module.

2. The multi-node PV-storage direct-flexible system according to claim 1 is characterized in that: The server is also configured to perform advance scheduling, and after acquiring periodic statistical data from the node data acquisition module and the regional data acquisition module, obtain the peak power consumption occurrence rate of the current photovoltaic storage direct and flexible node within a preset time period and the volume ratio trough occurrence rate in a preset time period, and respond to the energy storage module and the energy conversion module in advance according to the occurrence rate to perform scheduling.

3. The multi-node PV-storage direct-flexible system according to claim 1, characterized in that: It also includes a log generation module that stores and generates data logs.

4. The multi-node PV-storage direct-flexible system according to claim 1, characterized in that: It also includes a verification module, which is used to verify the consistency of the volume ratio and log of the current optical storage direct flexible node. If the error is above a preset value, a request is sent to the server to perform verification.

5. The multi-node PV-storage direct-flexible system according to claim 1, characterized in that: It also includes a configuration module, which sets the sampling interval and sampling time of the node data acquisition module.

6. A method for energy storage scheduling of a multi-node photovoltaic storage direct-flexible system, applied to the system described in any one of claims 1 to 5, characterized in that: The steps include: When the energy storage volume ratio ratio in any monitoring node is higher than the preset value, a corresponding node is dispatched from other monitoring nodes; The energy storage volume ratio is calculated by the following formula: k = nT / N; Among them, K is the energy storage volume ratio, n is the time power generation of interval sampling, T is the variance of multiple interval sampling, and N is the maximum energy storage capacity of the node. After calculating the volume ratio of the node, the difference between the capacity demand and the actual capacity of the corresponding node in the node is inferred according to its volume ratio; When scheduling is performed, it is implemented through the following steps: Calculate the first node volume ratio of the monitoring node. If the volume ratio is higher than a preset value, dispatch a node from other monitoring nodes whose second node volume ratio is greater than or equal to the difference between the first node volume ratio and the preset volume ratio, but the second node volume ratio is not greater than 2 times the first node volume ratio; If the floor area ratio is lower than the preset value, and the sum of the floor area ratios of other nodes of this node is less than the preset floor area ratio, and after eliminating any of the floor area ratios, the sum of the floor area ratios is still less than the sum of the preset floor area ratios, then the node is marked as a schedulable node.

7. An electronic device, characterized in that: The invention comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the method as claimed in claim 6 is implemented.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method as claimed in claim 6 is implemented.

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