Virtual power plant distributed resource group control group regulation system

Abstract

The application discloses a kind of virtual power plant distributed resource group control group regulation systems of virtual power plant technical field, comprising: virtual power plant regulation platform, deployment is in power company dispatching center, for according to the operation of power grid, issue plan adjustment demand and real-time adjustment command;Aggregator, for the total adjustable capacity and real-time total power of distributed resource reported by distributed resource group control group regulation terminal according to the overall adjustment of distributed resource, and according to the integrated distributed resource, plan adjustment demand and real-time adjustment command are decomposed, obtain the resource regulation requirement of each described distributed resource group control group regulation terminal, and issue to corresponding distributed resource group control group regulation terminal;Distributed resource group control group regulation terminal, for real-time calculation the total adjustable capacity and real-time total power of distributed resource in current jurisdiction range and report it to aggregator, and according to resource regulation requirement, select suitable distributed resource to carry out regulation.

Description

Technical Field

[0001] This invention relates to the field of virtual power plant technology, and in particular to a distributed resource group control and dispatch system for virtual power plants. Background Technology

[0002] With the continuous development of smart grid technology, traditional power systems face new challenges and opportunities. Against the backdrop of global energy shortages and climate change, increasing clean energy coverage, improving electricity efficiency, further promoting the application of distributed generation and increasing the utilization of flexible load resources in distribution networks, and enhancing bidirectional interaction between the user side and the grid side in demand response will have a positive impact on alleviating power supply shortages and protecting the environment. In this context, virtual power plant technology has emerged. It combines the traditional physical architecture of the power grid with modern internet and communication technologies. Through the optimized aggregation and coordinated control of different types of distributed energy sources, it achieves multi-source complementarity on the power supply side and flexible interaction on the load side, constructing a virtual, controllable aggregate to participate in grid dispatch and operation. Ultimately, it can achieve optimal resource allocation and improve power supply reliability.

[0003] Virtual power plant aggregators gather resource information from distributed power sources and loads through group control and dispatch terminal equipment, enabling rapid frequency regulation control on the power source side and demand response on the load side. As the aggregation center for regional loads and power sources, the group control and dispatch terminal communicates with various distributed resources, including residential users, industrial and commercial users, distributed energy systems, and vehicle-to-grid coordination systems, both downstream and upstream with the virtual power plant aggregator, making it a crucial link in the virtual power plant system. Currently, the group control and dispatch terminal mainly implements communication and data acquisition functions, lacking the means to aggregate and regulate massive distributed resources across different spaces and times, thus failing to meet the urgent need for hierarchical and tiered aggregated control in virtual power plants. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a virtual power plant distributed resource group control and dispatch system, which can realize the aggregated control of group control and dispatch terminals, aggregate the distributed resources within the jurisdiction into a whole adjustable resource, realize the hierarchical and graded control of resources, and reduce the control pressure of aggregators.

[0005] To solve the above-mentioned technical problems, the present invention is implemented using the following technical solution:

[0006] This invention provides a virtual power plant distributed resource group control and dispatch system, including a virtual power plant control platform, an aggregator, and multiple distributed resource group control and dispatch terminals;

[0007] The virtual power plant control platform is deployed in the power company's dispatch center and is used to issue planned control requirements and real-time control commands based on the operation of the power grid.

[0008] The aggregator is used to effectively integrate distributed resources of different types and locations scattered across different spaces based on the overall adjustable capacity and real-time total power of the distributed resources reported by the distributed resource group control and dispatch terminals. Furthermore, based on the integrated distributed resources, the aggregator decomposes the planned adjustment requirements and real-time adjustment commands to obtain the resource control requirements for each distributed resource group control and dispatch terminal, and then sends these requirements to the corresponding terminals. The resource control requirements include planned curve data and real-time adjustment instructions.

[0009] The distributed resource group control and dispatch terminal is used to calculate the overall adjustable capacity and real-time total power of the distributed resources within its current jurisdiction in real time, and to report the calculated overall adjustable capacity and real-time total power to the aggregator, as well as to select appropriate distributed resources for regulation according to the resource regulation requirements.

[0010] Optionally, it also includes an edge gateway; the edge gateway is deployed between the aggregator system and the power company's virtual power plant control platform to isolate the aggregator's intranet from the power company's dispatch center intranet.

[0011] Optionally, the distributed resource group control and dispatch terminal includes an upward communication module, a planning curve module, a group control and dispatch module, a data center module, and multiple downward communication modules;

[0012] The uplink communication module is used to receive resource regulation requests issued by the aggregator, forward the real-time adjustment instructions in the resource regulation requests to the group control and adjustment module, forward the planned curve data in the resource regulation requests to the planned curve module, and report the total adjustable capacity and real-time total power calculated in real time by the group control and adjustment module to the aggregator.

[0013] The planning curve module is used to parse the received planning curve data, obtain the planning adjustment instruction, and send the planning adjustment instruction to the group control and group adjustment module at a specified time point;

[0014] The group control and adjustment module is used to perform logical analysis and judgment based on the received resource data and adjustment instructions of the distributed resources, obtain the power control command for each distributed resource and send it to the data center module, and calculate the overall adjustable capacity and real-time total power of the distributed resources within its current jurisdiction in real time, and forward it to the upper communication module; the adjustment instruction is a planned adjustment instruction or a real-time adjustment instruction.

[0015] The data center module is used to determine the downstream communication module of each distributed resource based on the power control command received for each distributed resource, and to send power control instructions to the corresponding downstream communication module one by one, as well as to forward the resource data of the received distributed resources to the group control and adjustment module.

[0016] The downstream communication module is used to send corresponding communication messages to the corresponding distributed resources according to the received power control command and the corresponding communication protocol, and to collect resource data of the distributed resources and send it to the data center.

[0017] Optionally, the group control and dispatch module includes a resource virtualization module, a resource aggregation module, a resource status monitoring module, an execution evaluation module, and an instruction decomposition module;

[0018] The resource virtual module is used to abstract the received distributed resource data into standardized virtual resource data according to the resource characteristics;

[0019] The resource aggregation module is used to monitor the current power of all distributed resources within its jurisdiction in real time based on the virtual resource data, and to virtualize these distributed resources as a whole adjustable resource, and calculate the overall adjustable capacity and real-time total power.

[0020] The resource status monitoring module is used to obtain the running status and communication status of all distributed resources in real time based on the virtual resource data.

[0021] The execution evaluation module is used to calculate the adjustment difference based on the virtual resource data and adjustment instructions;

[0022] The instruction decomposition module is used to perform logical analysis and judgment based on the current power, operating status, communication status, adjustment difference, and adjustment instructions of all distributed resources, and to obtain the power control command for each distributed resource.

[0023] Optionally, the adjustment difference can be calculated based on the virtual resource data and adjustment instructions using the following formula:

[0024] Diff=|ΣP_actual - P_target|

[0025] Where Diff represents the adjustment difference, ΣP_actual represents the set of actual adjustment amounts of distributed resources in the virtual resource data, and P_target represents the adjustment instruction.

[0026] Optionally, the step of using a weighted allocation algorithm based on resource response priority for logical analysis and judgment to obtain a power control command for each distributed resource includes:

[0027] Based on the operating and communication status of each distributed resource, distributed resources with abnormal communication and operating status are removed, and the remaining distributed resources are used for the following operations.

[0028] Based on the current power and adjustment command of the remaining distributed resources, the adjustment amount of the remaining distributed resources is calculated to obtain the power control command of the remaining distributed resources with timestamps.

[0029] Within Δt after the power control command is issued, the adjustment difference is calculated, and when the adjustment difference is greater than the threshold δ, the difference redistribution mechanism is triggered.

[0030] Where Δt = T × 1.2, and T represents the response period.

[0031] Optionally, the adjustment amount for calculating the remaining distributed resources is achieved using the following formula:

[0032] ΔP_i = (P_target - P_current) × (C_avail_i / ΣC_avail)

[0033] Where ΔP_i represents the adjustment amount of distributed resource i, P_target represents the adjustment command, P_current represents the current power of distributed resource i, C_avail_i represents the weight of distributed resource i, and ΣC_avail represents the weight set of distributed resources.

[0034] Optionally, the weight of the distributed resource i is obtained by the following formula:

[0035] C_avail_i = α×v + β×+ρ+γ×t_left

[0036] Where α, β, and γ are preset weighting factors, v represents the response rate, ρ represents the adjustment precision, t_left represents the remaining adjustable time, t_left = Δt - t_use, and t_use represents the time already used.

[0037] Optionally, the difference redistribution mechanism includes:

[0038] If there are existing energy storage resources and the energy storage resources are greater than or equal to the adjustment difference, the energy storage resources will be used to compensate for the adjustment difference.

[0039] If there are no energy storage resources or the energy storage resources are less than the regulation difference, repeat the step of calculating the regulation amount of the remaining distributed resources based on the current power and regulation instructions of the remaining distributed resources, and obtaining the power control command of the remaining distributed resources with timestamps.

[0040] Compared with existing technologies, the beneficial effects achieved by this invention are as follows:

[0041] 1. At the aggregation and control level, the group control and control terminal has been able to aggregate distributed resources within its jurisdiction, integrate them into a whole adjustable resource, and provide it to the aggregator for use, realizing hierarchical and graded resource control, and effectively reducing the control pressure on the aggregator.

[0042] 2. In terms of control precision and response speed, the distributed resource data is standardized and abstracted through the resource virtual module. Combined with the resource aggregation module and the instruction decomposition module, the power control command is quickly and accurately calculated and issued using a weighted allocation algorithm based on resource response priority.

[0043] 3. The differential redistribution mechanism fully leverages the bidirectional regulation characteristics and rapid response advantages of energy storage resources. When regulation deviations occur, energy storage resources can respond quickly and accurately compensate for the difference. Its bidirectional regulation function can flexibly cope with power increase and decrease demands, and its rapid response performance ensures that charging and discharging actions can be completed in a short time. This significantly improves the overall system regulation response speed and regulation accuracy, reduces regulation errors caused by distributed resource fluctuations, and achieves efficient and accurate matching of grid regulation demands.

[0044] 4. In terms of resource optimization and utilization, the differential redistribution mechanism effectively integrates various resources such as energy storage, avoids resource waste, fully taps the potential of distributed resources, and improves the efficiency of comprehensive resource utilization. In terms of system compatibility and scalability, the standardized virtual resource data processing method and modular design enable the system to easily access distributed resources of different types and protocols, with strong compatibility. Moreover, as the number of distributed resources increases and the needs of power grid development grow, it is easy to expand and upgrade functions, adapting to the future development trend of smart grids. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the structure of a virtual power plant distributed resource group control and dispatch system provided in an embodiment of the present invention;

[0046] Figure 2 This is a schematic diagram of the distributed resource group control and dispatch terminal structure provided in an embodiment of the present invention;

[0047] Figure 3 This is a schematic diagram of the group control and group adjustment module structure provided in an embodiment of the present invention. Detailed Implementation

[0048] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present invention and the specific features in the embodiments are detailed descriptions of the technical solution of the present invention, rather than limitations thereof. In the absence of conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other.

[0049] It should be noted that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0050] Example 1:

[0051] This invention discloses a distributed resource group control and dispatch system for virtual power plants, with reference to... Figure 1 As shown, it includes a virtual power plant control platform, aggregators, and multiple distributed resource group control and dispatch terminals.

[0052] The virtual power plant control platform is deployed in the power company's dispatch center and is responsible for issuing planned control demands or real-time control commands based on the power grid's operating conditions.

[0053] The aggregator is used to effectively integrate distributed resources of different types and locations scattered across different spaces based on the overall adjustable capacity and real-time total power of the distributed resources reported by the distributed resource group control and dispatch terminals. The integrated resources are then used as a whole to participate in market competition. Furthermore, the aggregator decomposes the planned adjustment requirements and real-time adjustment commands based on the integrated distributed resources to obtain the resource control requirements of each distributed resource group control and dispatch terminal, and sends them to the corresponding distributed resource group control and dispatch terminals. The resource control requirements include planned curve data and real-time adjustment instructions.

[0054] In this embodiment, the distributed resource group control and dispatch terminal is used to calculate in real time the overall adjustable capacity and total power of the distributed resources within its current jurisdiction, and to report the calculated overall adjustable capacity and total power to the aggregator, as well as to select appropriate distributed resources for regulation based on the resource regulation requirements; (Reference) Figure 2 As shown, the distributed resource group control and adjustment terminal includes an upward communication module, a planning curve module, a group control and adjustment module, a data center module, and multiple downward communication modules.

[0055] The northbound communication module communicates with the virtual power plant aggregator to receive resource regulation requests from the aggregator and to report the total adjustable capacity and real-time total power calculated in real time by the group control and dispatch module to the aggregator. The southbound communication module forwards the real-time adjustment instructions in the resource regulation requests to the group control and dispatch module and forwards the planned curve data in the resource regulation requests to the planned curve module.

[0056] The planning curve module is used to receive planning curve data forwarded from the upper communication module, parse the received planning curve data to obtain planning adjustment instructions, and issue the planning adjustment instructions to the group control and adjustment module when the planning curve data reaches its specified time point.

[0057] The data center module is used to determine the downstream communication module of each distributed resource based on the power control command of each distributed resource issued by the group control and adjustment module, and to issue power control instructions to the corresponding downstream communication module one by one, as well as to forward the resource data of the received distributed resources to the group control and adjustment module.

[0058] The downstream communication module has a built-in multi-protocol conversion engine, which is used to automatically match the Modbus / IEC 104 protocol according to the received power control command and the communication message of the target device, dynamically encapsulate the power control command message and send it to the distributed resources, and at the same time collect the resource data of each distributed resource and send it to the data center.

[0059] The group control and adjustment module is used to perform logical analysis and judgment based on the received resource data and adjustment instructions (real-time adjustment instructions or planned adjustment instructions) of the distributed resources, obtain the power control command for each distributed resource and send it to the downstream communication module, and calculate the overall adjustable capacity and real-time total power of the distributed resources within its current jurisdiction in real time, and forward it to the upstream communication module; (Reference) Figure 3 As shown in this embodiment, the group control and dispatch module includes a resource virtualization module, a resource aggregation module, a resource status monitoring module, an execution evaluation module, and an instruction decomposition module.

[0060] The resource virtual module is used to abstract the received distributed resource data into standardized virtual resource data according to the resource characteristics.

[0061] The resource aggregation module is used to monitor the current power, adjustable power upper and lower limits, and other data of all distributed resources within its jurisdiction in real time based on the virtual resource data, and to virtualize these distributed resources as a whole adjustable resource, and calculate the overall adjustable capacity and real-time total power.

[0062] The resource status monitoring module is used to obtain the running status and communication status of each distributed resource in real time through logical calculation based on the virtual resource data.

[0063] The execution evaluation module is used to calculate the adjustment difference based on the virtual resource data and adjustment instructions, and to evaluate the effect of the adjustment execution.

[0064] Diff=|ΣP_actual - P_target|

[0065] Where Diff represents the adjustment difference, P_actual represents the set of actual adjustment amounts of distributed resources in the virtual resource data, and P_target represents the adjustment instruction.

[0066] The instruction decomposition module is used to perform logical analysis and judgment based on the current power, operating status, communication status, adjustment difference, and adjustment instructions of all distributed resources, using a weighted allocation algorithm based on resource response priority, to obtain the power control command for each distributed resource, including:

[0067] (i) Based on the operating status and communication status of each distributed resource, remove distributed resources with abnormal communication status and abnormal operating status;

[0068] (ii) Based on the current power and adjustment command of the remaining distributed resources, calculate the adjustment amount of the remaining distributed resources to obtain the power control command of the remaining distributed resources with timestamps:

[0069] ΔP_i = (P_target - P_current) × (C_avail_i / ΣC_avail)

[0070] Where ΔP_i represents the adjustment amount of distributed resource i, P_target represents the adjustment command, P_current represents the current power of distributed resource i, C_avail_i represents the weight of distributed resource i, C_avail_i = α×v + β×+ρ+γ×t_left, where α, β, and γ are preset weight factors, v represents the response rate, ρ represents the adjustment precision, t_left represents the remaining adjustable time, t_left=Δt- t_use, where t_use represents the used time; ΣC_avail represents the weight set of distributed resources;

[0071] (iii) Within Δt after the power control command is issued, calculate the adjustment difference. When the adjustment difference is greater than the threshold δ, trigger the difference redistribution mechanism:

[0072] If there are existing energy storage resources and the energy storage resources are greater than or equal to the adjustment difference, the energy storage resources will be used to compensate for the adjustment difference.

[0073] If there are no energy storage resources or the energy storage resources are less than the adjustment difference, repeat the above steps (i) to (iii).

[0074] Where Δt = T × 1.2, T represents the response period, and the threshold δ = 5%.

[0075] Example 2:

[0076] Based on the same inventive concept as Embodiment 1, this embodiment of the invention discloses a virtual power plant distributed resource group control and dispatch system, including a virtual power plant control platform, an edge gateway, an aggregator, and multiple distributed resource group control and dispatch terminals.

[0077] The virtual power plant control platform is deployed in the power company's dispatch center and is responsible for issuing planned control demands or real-time control commands based on the power grid's operation. An edge gateway is deployed between the aggregator and the virtual power plant control platform, responsible for isolating the aggregator's internal network from the power company's dispatch network, and transmitting aggregator data and dispatch instructions. The aggregator is used to effectively integrate distributed resources scattered across different spaces and of different types based on the overall adjustable capacity and real-time total power reported by the distributed resource group control and dispatch terminals. The integrated resources are then used as a whole to compete in the market. Furthermore, based on the integrated distributed resources, the aggregator decomposes the planned control demands and real-time control commands to obtain the resource control demands for each distributed resource group control and dispatch terminal, and sends these demands to the corresponding terminals. The resource control demands include planned curve data and real-time control commands. The distributed resource group control and dispatch terminals are used to calculate the overall adjustable capacity and real-time total power of the distributed resources within their current jurisdiction in real time, report the calculated overall adjustable capacity and real-time total power to the aggregator, and select appropriate distributed resources for control based on the resource control demands.

[0078] The specific functions of each module described above are explained in the relevant content of the system in Embodiment 1, and will not be repeated here.

[0079] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0080] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0081] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0082] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0083] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A virtual power plant distributed resource group control and dispatch system, characterized in that, This includes a virtual power plant control platform, aggregators, and multiple distributed resource group control and dispatch terminals; The virtual power plant control platform is deployed in the power company's dispatch center and is used to issue planned control requirements and real-time control commands based on the operation of the power grid. The aggregator is used to effectively integrate distributed resources of different types and locations scattered in different spaces based on the overall adjustable capacity and real-time total power of the distributed resources reported by the distributed resource group control and dispatch terminals. Based on the integrated distributed resources, the aggregator decomposes the planned adjustment requirements and real-time adjustment commands to obtain the resource control requirements of each distributed resource group control and dispatch terminal, and sends them to the corresponding distributed resource group control and dispatch terminals. The resource regulation requirements include planned curve data and real-time adjustment instructions; The distributed resource group control and dispatch terminal is used to calculate the overall adjustable capacity and real-time total power of the distributed resources within its current jurisdiction in real time, and to report the calculated overall adjustable capacity and real-time total power to the aggregator, as well as to select appropriate distributed resources for regulation according to the resource regulation requirements. The distributed resource group control and dispatch terminal includes an upward communication module, a planning curve module, a group control and dispatch module, a data center module, and multiple downward communication modules; The uplink communication module is used to receive resource regulation requests issued by the aggregator, forward the real-time adjustment instructions in the resource regulation requests to the group control and adjustment module, forward the planned curve data in the resource regulation requests to the planned curve module, and report the total adjustable capacity and real-time total power calculated in real time by the group control and adjustment module to the aggregator. The planning curve module is used to parse the received planning curve data, obtain the planning adjustment instruction, and send the planning adjustment instruction to the group control and group adjustment module at a specified time point; The group control and adjustment module is used to perform logical analysis and judgment based on the received resource data and adjustment instructions of the distributed resources, obtain the power control command for each distributed resource and send it to the data center module, and calculate the overall adjustable capacity and real-time total power of the distributed resources within its current jurisdiction in real time, and forward it to the upper communication module; the adjustment instruction is a planned adjustment instruction or a real-time adjustment instruction. The data center module is used to determine the downstream communication module of each distributed resource based on the power control command received for each distributed resource, and to send power control instructions to the corresponding downstream communication module one by one, as well as to forward the resource data of the received distributed resources to the group control and adjustment module. The downlink communication module is used to send corresponding communication messages to the corresponding distributed resources according to the received power control command and the corresponding communication protocol, and to collect resource data of the distributed resources and send it to the data center. The group control and dispatch module includes a resource virtualization module, a resource aggregation module, a resource status monitoring module, an execution evaluation module, and an instruction decomposition module; The resource virtual module is used to abstract the received distributed resource data into standardized virtual resource data according to the resource characteristics; The resource aggregation module is used to monitor the current power of all distributed resources within its jurisdiction in real time based on the virtual resource data, and to virtualize these distributed resources as a whole adjustable resource, and calculate the overall adjustable capacity and real-time total power. The resource status monitoring module is used to obtain the running status and communication status of all distributed resources in real time based on the virtual resource data. The execution evaluation module is used to calculate the adjustment difference based on the virtual resource data and adjustment instructions; The instruction decomposition module is used to perform logical analysis and judgment based on the current power, operating status, communication status, adjustment difference and adjustment instructions of all distributed resources, and to obtain the power control command for each distributed resource. The process employs a weighted allocation algorithm based on resource response priority for logical analysis and judgment to obtain power control commands for each distributed resource, including: Based on the operating and communication status of each distributed resource, distributed resources with abnormal communication and operating status are removed, and the remaining distributed resources are used for the following operations. Based on the current power and adjustment command of the remaining distributed resources, the adjustment amount of the remaining distributed resources is calculated to obtain the power control command of the remaining distributed resources with timestamps. Within Δt after the power control command is issued, the adjustment difference is calculated, and when the adjustment difference is greater than the threshold δ, the difference redistribution mechanism is triggered. Where Δt = T × 1.2, and T represents the response period; The adjustment amount for calculating the remaining distributed resources is achieved through the following formula: ΔP_i = (P_target - P_current) × (C_avail_i / ΣC_avail) Where ΔP_i represents the adjustment amount of distributed resource i, P_target represents the adjustment command, P_current represents the current power of distributed resource i, C_avail_i represents the weight of distributed resource i, and ΣC_avail represents the weight set of distributed resources. The weight of the distributed resource i is obtained by the following formula: C_avail_i = α×v + β×ρ+γ×t_left Where α, β, and γ are preset weighting factors, v represents the response rate, ρ represents the adjustment precision, t_left represents the remaining adjustable time, t_left = Δt - t_use, and t_use represents the time already used.

2. The virtual power plant distributed resource group control and dispatch system according to claim 1, characterized in that, It also includes an edge gateway; the edge gateway is deployed between the aggregator system and the power company's virtual power plant control platform to isolate the aggregator's intranet from the power company's dispatch center intranet.

3. The virtual power plant distributed resource group control and dispatch system according to claim 1, characterized in that, The adjustment difference is calculated based on the virtual resource data and adjustment instructions using the following formula: Diff=|ΣP_actual - P_target| Where Diff represents the adjustment difference, ΣP_actual represents the set of actual adjustment amounts of distributed resources in the virtual resource data, and P_target represents the adjustment instruction.

4. The virtual power plant distributed resource group control and dispatch system according to claim 1, characterized in that, The difference redistribution mechanism includes: If there are existing energy storage resources and the energy storage resources are greater than or equal to the adjustment difference, the energy storage resources will be used to compensate for the adjustment difference. If there are no energy storage resources or the energy storage resources are less than the regulation difference, repeat the step of calculating the regulation amount of the remaining distributed resources based on the current power and regulation instructions of the remaining distributed resources, and obtaining the power control command of the remaining distributed resources with timestamps.

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