Balanced regulation and control management method and system for multi-source power grid

Abstract

The invention relates to the technical field of balance regulation and control management of a multi-source power grid, and particularly provides a balance regulation and control management method and system of the multi-source power grid. The method comprises the following steps: acquiring power generation and power consumption data of a multi-source power grid; obtaining energy storage data; substituting the multi-source power grid power generation and utilization data and the energy storage data into a balance regulation and control unit, and selectively generating a regulation and control scheme; executing the adjustment control scheme; and after a preset adjustment duration, the power generation and utilization data and the energy storage data of the multi-source power grid are obtained again, the obtained power generation and utilization data and the energy storage data of the multi-source power grid are substituted into the balance regulation and control unit again, and the adjustment control scheme or the balance regulation and control unit is selectively adjusted. Therefore, the energy dynamic balance of the micro-grid system is realized. The power output and input of different new energy distributed power supplies in the micro-grid system are balanced and optimized through the balance regulation and control unit, so that the stability, reliability and high efficiency of the micro-grid system are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of balancing control management of a multi-source power grid, and specifically provides a balancing control management method and system for a multi-source power grid. Background Art

[0002] "Micro-Grid" (MG, Micro-Grid & Mini-Grid) refers to a small power supply system consisting of distributed generators, energy conversion devices, related loads, distribution monitoring and protection devices. It is a distributed power supply system that can achieve self-regulation control, protection and autonomous management.

[0003] In recent years, microgrids have received great attention because they can effectively utilize distributed renewable energy to improve the reliability of distribution networks.

[0004] However, with the widespread use of various renewable energy power systems, renewable energy such as wind / light with volatility and uncertainty as the main energy supplier, microgrids connected to various new energy distributed power sources are prone to unstable operation when operating in isolated islands, resulting in waste of renewable resources, ineffective energy conversion, and even too low energy utilization.

[0005] Accordingly, the art needs a new balancing regulation and management solution for multi-source power grids to solve the above problems. Summary of the invention

[0006] In order to overcome the above-mentioned defects, the present invention is proposed to provide a balancing control management method and system for a multi-source power grid to solve or at least partially solve the technical problem in the prior art that a microgrid connected to a variety of renewable energy distributed power sources is very likely to fail to operate stably when operating in an isolated island, resulting in waste of renewable resources, inability to effectively convert energy, and even excessively low energy utilization.

[0007] In a first aspect, the present invention provides a method for balancing control and management of a multi-source power grid, the method being applied to a balancing control and management system, the balancing control and management system being connected to a microgrid system, the microgrid system being connected to a plurality of new energy distributed power sources, the method comprising the following steps: Acquire multi-source power grid data, wherein the multi-source power grid data at least includes power generation and power consumption data of different power generation sources; Acquiring energy storage data, wherein the energy storage data at least includes battery energy storage data and redundant energy storage data; Substituting the multi-source power grid data and the energy storage data into the balancing control unit, and selectively generating a regulation control scheme, wherein the regulation control scheme includes a preset regulation duration and a regulation control sub-scheme of at least one power generation source; executing the regulation control scheme; After a preset adjustment period, the multi-source grid data and energy storage data are re-acquired and re-substituted into the balancing control unit, and the adjustment control scheme or the balancing control unit is selectively adjusted to achieve energy balance of the microgrid system.

[0008] In a technical solution of the above-mentioned balancing control management method of the multi-source power grid, the step of substituting the multi-source power grid data and the energy storage data into the balancing control unit and selectively generating the regulation control scheme includes: Preprocessing the multi-source power grid data and energy storage data to obtain screened multi-source power grid data and energy storage data; Performing energy analysis on the filtered multi-source power grid data to obtain energy analysis results, wherein the energy analysis results include combined characteristics of the power of the energy load and the power consumption; Performing energy storage analysis on the screened energy storage data to obtain energy storage analysis results, wherein the energy storage analysis results include combined characteristics of power supply and power output; Based on the energy consumption analysis results and the energy storage analysis results, the supply and demand difference is obtained; Based on the supply-demand gap, determine whether balancing regulation is needed: If the judgment is yes, then a regulation control plan is generated based on the energy consumption analysis results and the energy storage analysis results; If the judgment is no, the analysis result that does not require balance control is output.

[0009] In a technical solution of the above-mentioned method for balancing control and management of a multi-source power grid, the preprocessing of the multi-source power grid data and the energy storage data to obtain the screened multi-source power grid data and the energy storage data includes: Performing data cleaning on the multi-source power grid data and the energy storage data to obtain cleaned multi-source power grid data and the energy storage data; Performing data error correction on the cleaned multi-source power grid data and energy storage data to obtain error-corrected multi-source power grid data and energy storage data; The multi-source power grid data and energy storage data after error removal are standardized to obtain the screened multi-source power grid data and energy storage data with consistent data formats.

[0010] In a technical solution of the above-mentioned method for balancing control and management of a multi-source power grid, the energy analysis of the screened multi-source power grid data to obtain the energy analysis result includes: Based on the power data of each power generation source in the screened multi-source power grid data, a combined power consumption feature corresponding to each power generation source is obtained, wherein the combined power consumption feature at least includes a power consumption feature value and an incoming power feature value in each time period; Based on the power data of each power generation source in the screened multi-source power grid data and the combined characteristics of the power consumption corresponding to each power generation source, the power of the energy load corresponding to each power generation source in each time period is obtained; Based on the combined characteristics of the power of the energy load corresponding to each power generation source and the power consumption corresponding to each power generation source in each time period, the energy consumption analysis result is obtained.

[0011] In a technical solution of the above-mentioned balancing control management method of the multi-source power grid, the energy storage analysis is performed on the screened energy storage data to obtain the energy storage analysis result, which includes: Based on the filtered energy storage data, a combination feature of the power supply of the energy storage device corresponding to each power generation source is obtained, wherein the combination feature of the power supply at least includes a characteristic value of the power supply in each time period and a redundant characteristic value of the power supply; Based on the battery energy storage data in the filtered energy storage data, the power output of the power supply in each time period is obtained; The energy storage analysis result is obtained based on the combined characteristics of the power output of each time period and the power supply amount of the energy storage device corresponding to each power generation source.

[0012] In a technical solution of the above-mentioned balancing control management method of the multi-source power grid, the supply-demand difference is obtained based on the energy consumption analysis result and the energy storage analysis result, including: Based on the combined characteristics of the power consumption corresponding to each power generation source in the energy consumption analysis result and the combined characteristics of the power supply of the energy storage device corresponding to each power generation source in the energy storage analysis result, the difference between the supply and demand power corresponding to each power generation source is obtained; Based on the power of the energy load corresponding to each power generation source in each time period in the energy analysis result and the power of the power supply output in each time period in the energy storage analysis result, the difference between the supply and demand power of the load corresponding to each power generation source is obtained; The supply-demand difference is obtained based on the difference between the supply and demand power of the load corresponding to each power generation source and the difference between the supply and demand power corresponding to each power generation source.

[0013] In a technical solution of the above-mentioned balancing control management method of the multi-source power grid, a preset power generation source database is stored in the balancing control unit, wherein the preset power generation source database stores power generation source information of each power generation source, wherein the power generation source information at least includes the total energy storage amount of the power generation source, the power generation type, and the power generation efficiency under the environmental data corresponding to the power generation type, and the generating control scheme based on the energy consumption analysis result and the energy storage analysis result includes: Obtain environmental data corresponding to each power generation source that needs to be balanced and regulated; Based on a preset power generation source database and environmental data corresponding to each power generation source that needs to be balanced and regulated, determine the power generation efficiency and power generation type of each power generation source that needs to be balanced and regulated; Generate a regulation control sub-scheme corresponding to each power generation source that needs to be balanced and regulated based on the power generation efficiency and power generation type, energy consumption analysis results, and energy storage analysis results of each power generation source that needs to be balanced and regulated; Simulate the regulation and control sub-scheme corresponding to each power generation source that needs to be balanced and regulated to obtain simulation data corresponding to each power generation source that needs to be balanced and regulated; Based on the simulation data corresponding to each power generation source that needs to be balanced and regulated, determine the adjustment time corresponding to each power generation source that needs to be balanced and regulated; Determine a preset adjustment duration based on the adjustment duration corresponding to each power generation source that needs to be balanced and regulated; Based on the preset adjustment time and the regulation control sub-scheme corresponding to each power generation source that needs to be balanced and regulated, a regulation control scheme is obtained.

[0014] In a technical solution of the above-mentioned balancing control management method of the multi-source power grid, the determining of the power generation efficiency and power generation type of each power generation source that needs to be balanced and controlled based on a preset power generation source database and environmental data corresponding to each power generation source that needs to be balanced and controlled includes: Based on a preset power generation source database, the type of balancing control required for each power generation source that needs to be balanced and controlled is obtained; Determine the adjustment direction corresponding to each power generation source that needs to be balanced and regulated based on the type of balanced regulation corresponding to each power generation source that needs to be balanced and regulated; Based on the adjustment direction corresponding to each power generation source that needs to be balanced and regulated, select the energy consumption analysis result and / or energy storage analysis result corresponding to each power generation source; Obtain the environmental data corresponding to each power generation source that needs to be balanced and regulated and the preset power generation source database, and determine the power generation efficiency and power generation type of each power generation source that needs to be balanced and regulated.

[0015] In a technical solution of the above-mentioned balancing control management method of the multi-source power grid, the re-substituting the re-acquired multi-source power grid data and energy storage data into the balancing control unit and selectively adjusting the regulation control scheme or the balancing control unit includes: Based on the re-acquired multi-source power grid data and energy storage data, determining whether each power generation source in the regulation and control scheme has achieved supply and demand balance; Based on the judgment result, obtaining the adjustment success rate and adjustment degree of the regulation control scheme; If the adjustment success rate of the regulation control scheme is lower than the preset adjustment success rate threshold, and the adjustment degree is higher than the preset adjustment degree threshold, or the adjustment success rate of the regulation control scheme is higher than the preset adjustment success rate threshold, and the adjustment degree is lower than the preset adjustment degree threshold, then based on the re-acquired multi-source power grid data and energy storage data, the regulation control scheme is re-acquired to adjust the regulation control scheme; If the adjustment success rate of the adjustment control scheme is lower than a preset adjustment success rate threshold, and the adjustment degree is lower than a preset adjustment degree threshold, the balancing control unit is adjusted, and based on the re-acquired multi-source power grid data, energy storage data and the adjusted balancing control unit, the adjustment control scheme is re-acquired to adjust the balancing control unit; If the adjustment success rate of the adjustment control scheme is higher than the preset adjustment success rate threshold, and the adjustment degree is higher than the preset adjustment degree threshold, the adjustment of the adjustment control scheme or the balancing control unit is not performed.

[0016] In a second aspect, the present invention provides a balancing regulation and management system, which is connected to a microgrid system, and the microgrid system is connected to a plurality of new energy distributed power sources, each of which includes a plurality of power generation equipment, a plurality of energy storage equipment, and a plurality of conversion equipment for connecting the power generation equipment and the energy storage equipment. The balancing regulation and management system includes a communication unit, a balancing regulation unit, and a control device. The communication unit is used to realize the communication connection between the balancing regulation and management system and the microgrid system, so as to realize the information interaction between the balancing regulation and management system and the microgrid system. A preset power generation source database is stored in the balancing regulation unit. The control device includes a processor and a memory, and the memory is suitable for storing a plurality of program codes, and the program codes are suitable for being loaded and run by the processor to execute the balancing regulation and management method of the multi-source power grid described in any one of the technical solutions of the balancing regulation and management method of the multi-source power grid.

[0017] The above one or more technical solutions of the present invention have at least one or more of the following beneficial effects: By substituting the acquired multi-source power grid data and energy storage data into a balancing control unit, a regulation control scheme is selectively generated, and then the regulation control scheme is executed. After a preset regulation time, the multi-source power grid data and energy storage data are re-acquired, and the re-acquired data is substituted into the balancing control unit, and the regulation control scheme or the balancing control unit is selectively adjusted to achieve energy balance of the microgrid system. The balancing control unit is used to balance and optimize the power output and input of different new energy distributed power sources in the microgrid system, thereby ensuring the stability, reliability and efficiency of the microgrid system, and avoiding the technical problems in the prior art that when a microgrid connected to multiple new energy distributed power sources is operated in an isolated island, the microgrid cannot easily operate stably, resulting in waste of renewable resources, ineffective energy conversion, and even too low energy utilization.

[0018] In the technical solution of the present invention, multi-source power grid data and energy storage data are preprocessed to obtain screened multi-source power grid data and energy storage data, thereby realizing preprocessing of the two data to facilitate subsequent data analysis. Then, the two data are analyzed to obtain energy consumption analysis results and energy storage analysis results, and based on the two results, the supply and demand difference is obtained to determine whether balancing regulation is needed. When balancing regulation is needed, a regulation control plan is generated based on the two results, thereby realizing intelligent balancing regulation of the multi-source power grid and its energy storage equipment, greatly improving the stability and economy of the power system, and reducing the complexity and cost of balancing regulation of the traditional power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The disclosure of the present invention will become more easily understood with reference to the accompanying drawings. It is easy for those skilled in the art to understand that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In addition, similar numbers in the figures are used to represent similar components, among which: Figure 1 This is a schematic flow chart of main steps of a method for balancing, regulating and managing a multi-source power grid according to an embodiment of the present invention; Figure 2 It is a schematic diagram of the main structural block diagram of a balance control management system according to an embodiment of the present invention.

[0020] List of reference numerals: 200: balancing control management system; 201: control device; 2011: processor; 2012: memory; 2013: program code; 202: communication unit; 203: balancing control unit; 2031: power generation source database. DETAILED DESCRIPTION

[0021] Some embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0022] In the description of the present invention, "module" and "processor" may include hardware, software or a combination of the two. A module may include hardware circuits, various suitable sensors, communication ports, and memories, and may also include software parts, such as program codes, or a combination of software and hardware. The processor may be a central processing unit, a microprocessor, an image processor, a digital signal processor, or any other suitable processor. The processor has data and / or signal processing functions. The processor may be implemented in software, hardware, or a combination of the two. Non-temporary computer-readable storage media include any suitable medium that can store program codes, such as a magnetic disk, a hard disk, an optical disk, a flash memory, a read-only memory, a random access memory, and the like. The term "A and / or B" means all possible combinations of A and B, such as only A, only B, or A and B. The term "at least one A or B" or "at least one of A and B" has a similar meaning to "A and / or B", and may include only A, only B, or A and B. The singular terms "one" and "the" may also include plural forms.

[0023] See attached Figure 1 , Figure 1 FIG. 1 is a flow chart showing the main steps of a method for balancing, regulating and managing a multi-source power grid according to an embodiment of the present invention. Figure 1 As shown, the balancing control management method of a multi-source power grid in an embodiment of the present invention is applied to a balancing control management system, and the balancing control management system is connected to a microgrid system, and the microgrid system is connected to a variety of new energy distributed power sources. The method mainly includes the following steps S101-step S105.

[0024] Step S101: Acquire multi-source power grid data, wherein the multi-source power grid data at least includes power generation and power consumption data of different power generation sources; Specifically, in some embodiments, the multiple new energy distributed power sources include at least a photovoltaic power generation system, a wind power generation system, a biomass power generation system, and a diesel engine power generation system.

[0025] Step S102: Acquire energy storage data, wherein the energy storage data at least includes battery energy storage data and redundant energy storage data; Step S103: Substituting the multi-source power grid data and the energy storage data into the balancing control unit, and selectively generating a regulation control scheme, wherein the regulation control scheme includes a preset regulation duration and a regulation control sub-scheme of at least one power generation source; Specifically, in some embodiments, substituting the multi-source grid data and the energy storage data into the balancing control unit to selectively generate a regulation control scheme includes: Preprocessing the multi-source power grid data and energy storage data to obtain screened multi-source power grid data and energy storage data; Performing energy analysis on the filtered multi-source power grid data to obtain energy analysis results, wherein the energy analysis results include combined characteristics of the power of the energy load and the power consumption; Performing energy storage analysis on the screened energy storage data to obtain energy storage analysis results, wherein the energy storage analysis results include combined characteristics of power supply and power output; Based on the energy consumption analysis results and the energy storage analysis results, the supply and demand difference is obtained; Based on the supply-demand gap, determine whether balancing regulation is needed: If the judgment is yes, then a regulation control plan is generated based on the energy consumption analysis results and the energy storage analysis results; If the judgment is no, the analysis result that does not require balance control is output.

[0026] In the above embodiment, by preprocessing the multi-source power grid data and the energy storage data, the filtered multi-source power grid data and the energy storage data are obtained, and the preprocessing of the two data is realized to facilitate the subsequent analysis of the data. Then, by analyzing the two data, the energy consumption analysis results and the energy storage analysis results are obtained, and based on the two results, the supply and demand difference is obtained, and then it is determined whether balancing regulation is needed. When balancing regulation is needed, an adjustment control plan is generated based on the two results, thereby realizing intelligent balancing regulation of the multi-source power grid and its energy storage equipment, greatly improving the stability and economy of the power system, and reducing the complexity and cost of balancing regulation of the traditional power system.

[0027] Specifically, in some embodiments, the preprocessing of the multi-source power grid data and the energy storage data to obtain the filtered multi-source power grid data and the energy storage data includes: Performing data cleaning on the multi-source power grid data and the energy storage data to obtain cleaned multi-source power grid data and the energy storage data; Performing data error correction on the cleaned multi-source power grid data and energy storage data to obtain error-corrected multi-source power grid data and energy storage data; The multi-source power grid data and energy storage data after error removal are standardized to obtain the screened multi-source power grid data and energy storage data with consistent data formats.

[0028] In the above embodiment, the multi-source power grid data and energy storage data are cleaned, duplicate, erroneous or inconsistent data are removed, and standardized to ensure data quality and consistency, so as to facilitate subsequent analysis and processing of the screened multi-source power grid data and energy storage data.

[0029] Specifically, in some embodiments, performing energy analysis on the filtered multi-source power grid data to obtain energy analysis results includes: Based on the power data of each power generation source in the screened multi-source power grid data, a combined power consumption feature corresponding to each power generation source is obtained, wherein the combined power consumption feature at least includes a power consumption feature value and an incoming power feature value in each time period; Based on the power data of each power generation source in the screened multi-source power grid data and the combined characteristics of the power consumption corresponding to each power generation source, the power of the energy load corresponding to each power generation source in each time period is obtained; Based on the combined characteristics of the power of the energy load corresponding to each power generation source and the power consumption corresponding to each power generation source in each time period, the energy consumption analysis result is obtained.

[0030] Specifically, in some embodiments, performing energy storage analysis on the screened energy storage data to obtain energy storage analysis results includes: Based on the filtered energy storage data, a combination feature of the power supply of the energy storage device corresponding to each power generation source is obtained, wherein the combination feature of the power supply at least includes a characteristic value of the power supply in each time period and a redundant characteristic value of the power supply; Based on the battery energy storage data in the filtered energy storage data, the power output of the power supply in each time period is obtained; The energy storage analysis result is obtained based on the combined characteristics of the power output of each time period and the power supply amount of the energy storage device corresponding to each power generation source.

[0031] Specifically, in some embodiments, obtaining the supply-demand difference based on the energy consumption analysis result and the energy storage analysis result includes: Based on the combined characteristics of the power consumption corresponding to each power generation source in the energy consumption analysis result and the combined characteristics of the power supply of the energy storage device corresponding to each power generation source in the energy storage analysis result, the difference between the supply and demand power corresponding to each power generation source is obtained; Based on the power of the energy load corresponding to each power generation source in each time period in the energy analysis result and the power of the power supply output in each time period in the energy storage analysis result, the difference between the supply and demand power of the load corresponding to each power generation source is obtained; The supply-demand difference is obtained based on the difference between the supply and demand power of the load corresponding to each power generation source and the difference between the supply and demand power corresponding to each power generation source.

[0032] Specifically, in some embodiments, based on the supply-demand difference, determining whether balancing regulation is required includes: If the difference between the power supply and demand of the load corresponding to the power generation source exceeds a preset power difference threshold, and / or the difference between the power supply and demand corresponding to the power generation source exceeds a preset power difference threshold, it is determined that the power generation source needs to be balanced and regulated, and the type of balanced regulation required by the power generation source includes the load and / or the power supply and demand; Otherwise, it is determined that the power generation source does not need to be balanced and regulated.

[0033] Specifically, in some embodiments, the preset power difference threshold may be 20KW or 30KW. The selection of the preset power difference threshold here is only an exemplary description. In actual testing, those skilled in the art may make a selection according to actual needs, which will not be elaborated here.

[0034] Specifically, in some embodiments, the preset power difference threshold may be 5% of the total energy storage amount corresponding to the power generation source, or 10% of the total energy storage amount corresponding to the power generation source. The selection of the preset power difference threshold here is only an exemplary description. In actual testing, those skilled in the art may make a selection according to actual needs, which will not be elaborated here.

[0035] Specifically, in some embodiments, a preset power generation source database is stored in the balancing control unit, wherein the preset power generation source database stores power generation source information of each power generation source, wherein the power generation source information at least includes the total energy storage amount of the power generation source, the power generation type, and the power generation efficiency under the environmental data corresponding to the power generation type, and the generating control scheme based on the energy consumption analysis result and the energy storage analysis result includes: Obtain environmental data corresponding to each power generation source that needs to be balanced and regulated; Based on a preset power generation source database and environmental data corresponding to each power generation source that needs to be balanced and regulated, determine the power generation efficiency and power generation type of each power generation source that needs to be balanced and regulated; Generate a regulation control sub-scheme corresponding to each power generation source that needs to be balanced and regulated based on the power generation efficiency and power generation type, energy consumption analysis results, and energy storage analysis results of each power generation source that needs to be balanced and regulated; Simulate the regulation and control sub-scheme corresponding to each power generation source that needs to be balanced and regulated to obtain simulation data corresponding to each power generation source that needs to be balanced and regulated; Based on the simulation data corresponding to each power generation source that needs to be balanced and regulated, determine the adjustment time corresponding to each power generation source that needs to be balanced and regulated; Determine a preset adjustment duration based on the adjustment duration corresponding to each power generation source that needs to be balanced and regulated; Based on the preset adjustment time and the regulation control sub-scheme corresponding to each power generation source that needs to be balanced and regulated, a regulation control scheme is obtained.

[0036] Specifically, in some embodiments, determining the power generation efficiency and power generation type of each power generation source that needs to be balanced and regulated based on a preset power generation source database and environmental data corresponding to each power generation source that needs to be balanced and regulated includes: Based on a preset power generation source database, the type of balancing control required for each power generation source that needs to be balanced and controlled is obtained; Determine the adjustment direction corresponding to each power generation source that needs to be balanced and regulated based on the type of balanced regulation corresponding to each power generation source that needs to be balanced and regulated; Based on the adjustment direction corresponding to each power generation source that needs to be balanced and regulated, select the energy consumption analysis result and / or energy storage analysis result corresponding to each power generation source; Obtain the environmental data corresponding to each power generation source that needs to be balanced and regulated and the preset power generation source database, and determine the power generation efficiency and power generation type of each power generation source that needs to be balanced and regulated.

[0037] Specifically, in some embodiments, generating a regulation control sub-scheme corresponding to each power generation source that needs to be balanced and regulated based on the power generation efficiency and power generation type, energy consumption analysis results, and energy storage analysis results of each power generation source that needs to be balanced and regulated includes: Based on the adjustment direction corresponding to each power generation source that needs to be balanced and regulated, the energy consumption analysis results and / or energy storage analysis results corresponding to each selected power generation source, and the power generation efficiency and power generation type of each power generation source that needs to be balanced and regulated, a regulation control sub-scheme corresponding to each power generation source that needs to be balanced and regulated is generated.

[0038] Specifically, the regulation control sub-scheme includes at least adjustment data of the operating status of at least one power generation device corresponding to the power generation source, adjustment data of at least one energy storage device corresponding to the power generation source, and adjustment data of at least one conversion device corresponding to the power generation source, and the adjustment data includes at least an adjustment type and its corresponding adjustment value, or an adjustment ratio.

[0039] Specifically, in some embodiments, the method for generating the regulating control scheme may adopt a trained neural network model or a trained machine learning model. The selection of the method for generating the regulating control scheme here is only an exemplary description. In actual tests, those skilled in the art may make a selection according to actual needs. As long as the regulating control scheme can be generated according to the regulating direction corresponding to each power generation source that needs to be balanced and regulated, the energy consumption analysis results and / or energy storage analysis results corresponding to each selected power generation source, and the power generation efficiency and power generation type of each power generation source that needs to be balanced and regulated, it will not be repeated here.

[0040] Specifically, in some embodiments, the simulation technology for simulating the regulation and control sub-scheme corresponding to each power generation source that needs to be balanced and regulated can adopt the simulation technology in the prior art. The selection of simulation technology here is only an exemplary explanation. In actual testing, technical personnel in this field can make a selection according to actual needs. As long as the regulation and control sub-scheme corresponding to each power generation source that needs to be balanced and regulated can be simulated to obtain the simulation data corresponding to each power generation source that needs to be balanced and regulated, it will not be repeated here.

[0041] Specifically, in some embodiments, before determining the adjustment duration corresponding to each power generation source that needs to be balanced and regulated based on the simulation data corresponding to each power generation source that needs to be balanced and regulated, the method further includes: Based on the simulation data corresponding to each power generation source that needs to be balanced and regulated, determine whether the power generation source in each regulation and control sub-scheme has achieved supply and demand balance; Based on the judgment result, obtaining the simulated adjustment degree of each regulation control sub-scheme; If the simulated adjustment degree of the regulating control sub-scheme is higher than the preset simulated adjustment degree threshold, it is determined that the regulating control sub-scheme meets the requirements, and the adjustment of the regulating control sub-scheme is not performed; Otherwise, it is determined that the regulation control sub-scheme does not meet the requirements, and the regulation control sub-scheme is adjusted.

[0042] Specifically, the preset simulation adjustment degree threshold may be 80% or 70%. The selection of the preset simulation adjustment degree threshold here is only an exemplary description. In actual testing, those skilled in the art may make a selection according to actual needs, which will not be elaborated here.

[0043] Step S104: executing the regulation control scheme; Step S105: After a preset adjustment time, the multi-source grid data and energy storage data are re-acquired, and the re-acquired multi-source grid data and energy storage data are re-substituted into the balancing control unit, and the adjustment control scheme or the balancing control unit is selectively adjusted to achieve energy balance of the microgrid system.

[0044] Specifically, in some embodiments, the re-substituting the re-acquired multi-source power grid data and energy storage data into the balancing control unit and selectively adjusting the regulation control scheme or the balancing control unit includes: Based on the re-acquired multi-source power grid data and energy storage data, determining whether each power generation source in the regulation and control scheme has achieved supply and demand balance; Based on the judgment result, obtaining the adjustment success rate and adjustment degree of the regulation control scheme; If the adjustment success rate of the regulation control scheme is lower than the preset adjustment success rate threshold, and the adjustment degree is higher than the preset adjustment degree threshold, or the adjustment success rate of the regulation control scheme is higher than the preset adjustment success rate threshold, and the adjustment degree is lower than the preset adjustment degree threshold, then based on the re-acquired multi-source power grid data and energy storage data, the regulation control scheme is re-acquired to adjust the regulation control scheme; If the adjustment success rate of the adjustment control scheme is lower than a preset adjustment success rate threshold, and the adjustment degree is lower than a preset adjustment degree threshold, the balancing control unit is adjusted, and based on the re-acquired multi-source power grid data, energy storage data and the adjusted balancing control unit, the adjustment control scheme is re-acquired to adjust the balancing control unit; If the adjustment success rate of the adjustment control scheme is higher than the preset adjustment success rate threshold, and the adjustment degree is higher than the preset adjustment degree threshold, the adjustment of the adjustment control scheme or the balancing control unit is not performed.

[0045] Specifically, the preset adjustment success rate threshold can be 90% or 85%, and the preset adjustment degree threshold can be 85% or 80%. The selection of the preset adjustment success rate threshold and the preset adjustment degree threshold here is only an exemplary description. In actual testing, those skilled in the art can make a selection according to actual needs, which will not be repeated here.

[0046] Specifically, the adjustment method for adjusting the regulation control scheme and the balancing control unit can adopt a trained neural network model or a trained machine learning model. The choice of adjustment method here is only an exemplary explanation. In actual testing, technical personnel in this field can choose according to actual needs. As long as the adjustment of the regulation control scheme and the balancing control unit can be achieved, and the adjusted regulation control scheme and balancing control unit are guaranteed to be better than the adjusted regulation control scheme and balancing control unit before the adjustment, it will not be repeated here.

[0047] Based on the above steps S101 to S105, by substituting the acquired multi-source power grid data and energy storage data into the balancing control unit, a regulation control scheme is selectively generated, and then the regulation control scheme is executed. After a preset regulation period, the multi-source power grid data and energy storage data are re-acquired, and the re-acquired data is substituted into the balancing control unit, and the regulation control scheme or the balancing control unit is selectively adjusted to achieve energy balance of the microgrid system, and the power output and input of different new energy distributed power sources in the microgrid system are balanced and optimized through the balancing control unit, thereby ensuring the stability, reliability and efficiency of the microgrid system, and avoiding the technical problems in the prior art that when a microgrid connected to multiple new energy distributed power sources is operated in an isolated island, the microgrid cannot easily operate stably, resulting in waste of renewable resources, ineffective energy conversion, and even too low energy utilization.

[0048] It should be pointed out that although the various steps in the above embodiments are described in a specific order, those skilled in the art can understand that in order to achieve the effects of the present invention, different steps do not have to be performed in such an order, and they can be performed simultaneously (in parallel) or in other orders. These changes are within the scope of protection of the present invention.

[0049] Furthermore, the present invention also provides a balance regulation and management system.

[0050] See attached Figure 2 , Figure 2 FIG. 1 is a main structural block diagram of a balance control management system according to an embodiment of the present invention. Figure 2As shown, the balancing control management system 200 in the embodiment of the present invention is connected to a microgrid system, and the microgrid system is connected to a plurality of new energy distributed power sources, each of which includes a plurality of power generation equipment, a plurality of energy storage equipment, and a plurality of conversion equipment for connecting the power generation equipment and the energy storage equipment. The balancing control management system 200 mainly includes a communication unit 202, a balancing control unit 203, and a control device 201. The communication unit 202 is used to realize the communication connection between the balancing control management system 200 and the microgrid system, so as to realize the information interaction between the balancing control management system 200 and the microgrid system. The balancing control unit 203 stores a preset power source database 2031. The control device 201 includes a processor 2011 and a memory 2012. The memory 2012 can be configured to store a program code 2013 for executing the balancing control management method of the multi-source power grid of the above method embodiment. The processor 2011 can be configured to execute the program code 2013 in the memory 2012, and the program code 2013 includes but is not limited to the program code 2013 for executing the balancing control management method of the multi-source power grid of the above method embodiment. For the convenience of explanation, only the parts related to the embodiment of the present invention are shown. For the specific technical details not disclosed, please refer to the method part of the embodiment of the present invention. The control device 201 can be a control device 201 device formed by various electronic devices.

[0051] Specifically, in some embodiments, the communication unit 202 of the balancing control and management system 200 is used to obtain multi-source power grid data and energy storage data.

[0052] Specifically, in some embodiments, the preset power generation source database 2031 stores power generation source information of each power generation source, wherein the power generation source information includes at least the total energy storage amount of the power generation source, the power generation type, and the power generation efficiency under the environmental data corresponding to the power generation type.

[0053] Specifically, in some embodiments, the specific communication connection method between the communication unit 202 balancing control management system 200 and the microgrid system is not restrictive, and technicians can set it according to actual usage requirements, as long as the communication connection can be achieved. For example, it can be connected via WiFi or Bluetooth, etc., and technicians can set it according to actual usage requirements.

[0054] Specifically, in some embodiments, the communication unit 202 can be a wireless communication device in the prior art, or it can be a wired communication device. The selection of the communication unit 202 here is only an exemplary description. In actual testing, technical personnel in this field can make a selection according to actual needs. As long as the communication connection between the balancing control management system 200 and the microgrid system can be achieved through the communication unit 202, it will not be repeated here.

[0055] In one implementation, the description of the specific implementation functions may refer to steps S101 to S105.

[0056] The above-mentioned balance control management system 200 is used to execute Figure 1 The embodiment of the balancing control management method for a multi-source power grid shown in the figure has similar technical principles, technical problems solved and technical effects produced. Technical personnel in this technical field can clearly understand that for the convenience and conciseness of description, the specific working process and related instructions of the balancing control management system 200 can refer to the contents described in the embodiment of the balancing control management method for a multi-source power grid, which will not be repeated here.

[0057] It is understood by those skilled in the art that the present invention implements all or part of the processes in the method of the above embodiment, and can also be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium, and when the computer program is executed by the processor 2011, the steps of each of the above method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable storage medium may include: any entity or device, medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory, random access memory, electric carrier signal, telecommunication signal and software distribution medium that can carry the computer program code. It should be noted that the content contained in the computer-readable storage medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable storage medium does not include electric carrier signal and telecommunication signal.

[0058] Further, the balancing regulation and management system 200 of the present invention also includes a computer-readable storage medium. In a computer-readable storage medium embodiment according to the present invention, the computer-readable storage medium can be configured to store a program code 2013 for executing the balancing regulation and management method of a multi-source power grid of the above-mentioned method embodiment, and the program code 2013 can be loaded and run by the processor 2011 to implement the above-mentioned balancing regulation and management method of a multi-source power grid. For ease of explanation, only the parts related to the embodiment of the present invention are shown. For specific technical details not disclosed, please refer to the method part of the embodiment of the present invention. The computer-readable storage medium can be a memory 2012 device formed by various electronic devices. Optionally, the computer-readable storage medium in the embodiment of the present invention is a non-temporary computer-readable storage medium.

[0059] Further, it should be understood that since the setting of each module is only for illustrating the functional units of the device of the present invention, the physical devices corresponding to these modules may be the processor 2011 itself, or a part of the software, a part of the hardware, or a part of the combination of software and hardware in the processor 2011. Therefore, the number of each module in the figure is only schematic.

[0060] Those skilled in the art will appreciate that the modules in the device can be adaptively split or merged. Such splitting or merging of specific modules will not cause the technical solution to deviate from the principle of the present invention, and therefore, the technical solutions after splitting or merging will fall within the protection scope of the present invention.

[0061] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A method for balancing, regulating and managing a multi-source power grid, characterized in that: The method is applied to a balancing control and management system, the balancing control and management system is connected to a microgrid system, the microgrid system is connected to a variety of new energy distributed power sources, and the method comprises the following steps: Acquire multi-source power grid data, wherein the multi-source power grid data at least includes power generation and power consumption data of different power generation sources; Acquiring energy storage data, wherein the energy storage data at least includes battery energy storage data and redundant energy storage data; Substituting the multi-source power grid data and the energy storage data into the balancing control unit, and selectively generating a regulation control scheme, wherein the regulation control scheme includes a preset regulation duration and a regulation control sub-scheme of at least one power generation source; executing the regulation control scheme; After a preset adjustment period, the multi-source grid data and energy storage data are re-acquired and re-substituted into the balancing control unit, and the adjustment control scheme or the balancing control unit is selectively adjusted to achieve energy balance of the microgrid system.

2. The method for balancing, regulating and managing a multi-source power grid according to claim 1, characterized in that: Substituting the multi-source grid data and the energy storage data into the balancing control unit to selectively generate a regulation control scheme includes: Preprocessing the multi-source power grid data and energy storage data to obtain screened multi-source power grid data and energy storage data; Performing energy analysis on the filtered multi-source power grid data to obtain energy analysis results, wherein the energy analysis results include combined characteristics of the power of the energy load and the power consumption; Performing energy storage analysis on the screened energy storage data to obtain energy storage analysis results, wherein the energy storage analysis results include combined characteristics of power supply and power output; Based on the energy consumption analysis results and the energy storage analysis results, the supply and demand difference is obtained; Based on the supply-demand gap, determine whether balancing regulation is needed: If the judgment is yes, then a regulation control plan is generated based on the energy consumption analysis results and the energy storage analysis results; If the judgment is no, the analysis result that does not require balance control is output.

3. The method for balancing, regulating and managing a multi-source power grid according to claim 2, characterized in that: The preprocessing of the multi-source power grid data and the energy storage data to obtain the filtered multi-source power grid data and the energy storage data includes: Performing data cleaning on the multi-source power grid data and the energy storage data to obtain cleaned multi-source power grid data and the energy storage data; Performing data error correction on the cleaned multi-source power grid data and energy storage data to obtain error-corrected multi-source power grid data and energy storage data; The multi-source power grid data and energy storage data after error removal are standardized to obtain the screened multi-source power grid data and energy storage data with consistent data formats.

4. The method for balancing, regulating and managing a multi-source power grid according to claim 3, characterized in that: The energy analysis of the filtered multi-source power grid data is performed to obtain the energy analysis results including: Based on the power data of each power generation source in the screened multi-source power grid data, a combined power consumption feature corresponding to each power generation source is obtained, wherein the combined power consumption feature at least includes a power consumption feature value and an incoming power feature value in each time period; Based on the power data of each power generation source in the screened multi-source power grid data and the combined characteristics of the power consumption corresponding to each power generation source, the power of the energy load corresponding to each power generation source in each time period is obtained; Based on the combined characteristics of the power of the energy load corresponding to each power generation source and the power consumption corresponding to each power generation source in each time period, the energy consumption analysis result is obtained.

5. The method for balancing, regulating and managing a multi-source power grid according to claim 4, characterized in that: The energy storage analysis is performed on the screened energy storage data to obtain the energy storage analysis results, including: Based on the filtered energy storage data, a combination feature of the power supply of the energy storage device corresponding to each power generation source is obtained, wherein the combination feature of the power supply at least includes a characteristic value of the power supply in each time period and a redundant characteristic value of the power supply; Based on the battery energy storage data in the filtered energy storage data, the power output of the power supply in each time period is obtained; The energy storage analysis result is obtained based on the combined characteristics of the power output of each time period and the power supply amount of the energy storage device corresponding to each power generation source.

6. The method for balancing, regulating and managing a multi-source power grid according to claim 5, characterized in that: The supply-demand difference obtained based on the energy consumption analysis results and the energy storage analysis results includes: Based on the combined characteristics of the power consumption corresponding to each power generation source in the energy consumption analysis result and the combined characteristics of the power supply of the energy storage device corresponding to each power generation source in the energy storage analysis result, the difference between the supply and demand power corresponding to each power generation source is obtained; Based on the power of the energy load corresponding to each power generation source in each time period in the energy analysis result and the power of the power supply output in each time period in the energy storage analysis result, the difference between the supply and demand power of the load corresponding to each power generation source is obtained; The supply-demand difference is obtained based on the difference between the supply and demand power of the load corresponding to each power generation source and the difference between the supply and demand power corresponding to each power generation source.

7. The method for balancing, regulating and managing a multi-source power grid according to claim 6, characterized in that: The balancing control unit stores a preset power source database, wherein the preset power source database stores power source information of each power source, wherein the power source information at least includes the total energy storage amount of the power source, the power generation type, and the power generation efficiency under the environmental data corresponding to the power generation type, and the generating control scheme based on the energy analysis result and the energy storage analysis result includes: Obtain environmental data corresponding to each power generation source that needs to be balanced and regulated; Based on a preset power generation source database and environmental data corresponding to each power generation source that needs to be balanced and regulated, determine the power generation efficiency and power generation type of each power generation source that needs to be balanced and regulated; Generate a regulation control sub-scheme corresponding to each power generation source that needs to be balanced and regulated based on the power generation efficiency and power generation type, energy consumption analysis results, and energy storage analysis results of each power generation source that needs to be balanced and regulated; Simulate the regulation control sub-scheme corresponding to each power generation source that needs to be balanced and regulated to obtain simulation data corresponding to each power generation source that needs to be balanced and regulated; Determine the adjustment time corresponding to each power generation source that needs to be balanced and regulated based on the simulation data corresponding to each power generation source that needs to be balanced and regulated; Determine a preset adjustment time based on the adjustment time corresponding to each power generation source that needs to be balanced and regulated; Based on the preset adjustment time and the regulation control sub-scheme corresponding to each power generation source that needs to be balanced and regulated, a regulation control scheme is obtained.

8. The method for balancing, regulating and managing a multi-source power grid according to claim 7, characterized in that: The determining of the power generation efficiency and power generation type of each power generation source that needs to be balanced and regulated based on a preset power generation source database and environmental data corresponding to each power generation source that needs to be balanced and regulated includes: Based on a preset power generation source database, the type of balancing control required for each power generation source that needs to be balanced and controlled is obtained; Determine the adjustment direction corresponding to each power generation source that needs to be balanced and regulated based on the type of balanced regulation corresponding to each power generation source that needs to be balanced and regulated; Based on the adjustment direction corresponding to each power generation source that needs to be balanced and regulated, select the energy consumption analysis result and / or energy storage analysis result corresponding to each power generation source; Obtain the environmental data corresponding to each power generation source that needs to be balanced and regulated and the preset power generation source database, and determine the power generation efficiency and power generation type of each power generation source that needs to be balanced and regulated.

9. The method for balancing, regulating and managing a multi-source power grid according to claim 8, characterized in that: Substituting the re-acquired multi-source grid data and energy storage data into the balancing control unit again, and selectively adjusting the regulation control scheme or the balancing control unit includes: Based on the re-acquired multi-source power grid data and energy storage data, determining whether each power generation source in the regulation and control scheme has achieved supply and demand balance; Based on the judgment result, obtaining the adjustment success rate and adjustment degree of the regulation control scheme; If the adjustment success rate of the regulation control scheme is lower than the preset adjustment success rate threshold, and the adjustment degree is higher than the preset adjustment degree threshold, or the adjustment success rate of the regulation control scheme is higher than the preset adjustment success rate threshold, and the adjustment degree is lower than the preset adjustment degree threshold, then based on the re-acquired multi-source power grid data and energy storage data, the regulation control scheme is re-acquired to adjust the regulation control scheme; If the adjustment success rate of the adjustment control scheme is lower than a preset adjustment success rate threshold, and the adjustment degree is lower than a preset adjustment degree threshold, the balancing control unit is adjusted, and based on the re-acquired multi-source power grid data, energy storage data and the adjusted balancing control unit, the adjustment control scheme is re-acquired to adjust the balancing control unit; If the adjustment success rate of the adjustment control scheme is higher than the preset adjustment success rate threshold, and the adjustment degree is higher than the preset adjustment degree threshold, the adjustment of the adjustment control scheme or the balancing control unit is not performed.

10. A balance control management system, characterized in that: The balancing control and management system is connected to a microgrid system, and the microgrid system is connected to a plurality of new energy distributed power sources, each of which includes a plurality of power generation equipment, a plurality of energy storage equipment, and a plurality of conversion equipment for connecting the power generation equipment and the energy storage equipment. The balancing control and management system includes a communication unit, a balancing control unit, and a control device. The communication unit is used to realize the communication connection between the balancing control and management system and the microgrid system, so as to realize the information interaction between the balancing control and management system and the microgrid system. A preset power generation source database is stored in the balancing control unit. The control device includes a processor and a memory. The memory is suitable for storing a plurality of program codes, and the program codes are suitable for being loaded and run by the processor to execute the balancing control and management method of a multi-source power grid described in any one of claims 1 to 9.

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