A hierarchical coordination control system for connecting new energy to a power grid

Abstract

The application discloses a new energy access power grid hierarchical coordination control system and belongs to the technical field of power grid regulation and control. The system comprises a power grid data acquisition module, a power grid data processing module, a power grid data analysis module, a hierarchical coordination control module and a power grid data storage module. The application solves the problem that the existing new energy access power grid cannot effectively perform hierarchical coordination control on the new energy accessing the power grid, leading to poor use effect of the new energy accessing the power grid. The application collects and processes power grid load data, determines power grid load representation data, analyzes and evaluates the power grid load representation data based on power grid energy storage standard data, determines power grid load analysis results, formulates a hierarchical coordination control method based on the power grid load analysis results, and performs hierarchical coordination control on the new energy accessing the power grid based on the hierarchical coordination control method, so that the new energy accessing the power grid can be effectively subjected to hierarchical coordination control, and the use effect of the new energy accessing the power grid can be improved.

Description

Technical Field

[0001] This invention relates to the field of power grid control technology, specifically to a hierarchical coordinated control system for new energy grid access. Background Technology

[0002] New energy, also known as unconventional energy, refers to various forms of energy other than traditional energy sources; it refers to energy sources that are just beginning to be developed and utilized or are under active research and are yet to be promoted, such as solar energy, geothermal energy, wind energy, ocean energy, biomass energy, and nuclear fusion energy. Connecting new energy sources to the power grid can effectively alleviate the problem of extremely tight power resources.

[0003] The existing system for connecting new energy sources to the power grid cannot effectively coordinate and control these new energy sources in a hierarchical manner, resulting in poor performance of new energy sources connected to the power grid. Summary of the Invention

[0004] The purpose of this invention is to provide a hierarchical coordination and control system for new energy grid access, which can effectively coordinate and control new energy connected to the grid, improve the utilization effect of new energy grid access, and solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A hierarchical coordination and control system for new energy grid access includes:

[0007] The power grid data acquisition module is used to collect power grid load data in various regions under operating conditions.

[0008] The power grid data processing module is used to process the collected power grid load data and determine the power grid load characterization data based on the load of each region.

[0009] The power grid data analysis module is used to analyze and evaluate power grid load characterization data and determine the power grid load analysis results based on the load of each region.

[0010] The hierarchical coordination control module is used to perform hierarchical coordination control on the access of new energy to the power grid. Based on the power grid load analysis results, it formulates corresponding hierarchical coordination control methods and performs hierarchical coordination control on the access of new energy to the power grid based on the hierarchical coordination control methods.

[0011] The power grid data storage module is used to store collected power grid load data and power grid energy storage standard data used for analyzing and evaluating power grid load characterization data.

[0012] Preferably, the power grid data acquisition module includes:

[0013] Current sensors are used to collect node currents of loads in various regions during operation.

[0014] Voltage sensors are used to collect node voltages of loads in various regions during operation.

[0015] Power sensors are used to collect node power of loads in various regions during operation.

[0016] Based on the collected node current, node voltage, and node power, the power grid load data of each region under operating conditions is determined.

[0017] Preferably, the power grid data processing module includes:

[0018] The data extraction unit is used to extract power grid load data;

[0019] Based on the hierarchical coordination and control requirements for new energy grid access, grid load data is extracted from the grid data acquisition module and transmitted to the data retrieval unit.

[0020] The data retrieval unit is used to retrieve power grid load data;

[0021] Based on the sequential retrieval method, the power grid load data is retrieved one by one;

[0022] Filter out the portion of grid load data that is not valuable for the hierarchical coordination and control of new energy grid access;

[0023] We identified grid load data that is valuable for the hierarchical coordinated control of new energy grid access.

[0024] Preferably, the power grid data processing module further includes:

[0025] The data sorting unit is used to sort the power grid load data;

[0026] To acquire grid load data that is valuable for hierarchical coordination and control of new energy grid access, and to effectively sort the grid load data based on an internal sorting method, thereby determining the grid load data with a certain order;

[0027] The data calculation unit is used to calculate the power grid load data;

[0028] The system acquires grid load data in a certain order and calculates the grid load data to determine the grid load characterization data based on the load of each region.

[0029] Preferably, the power grid load data extracted by the data extraction unit contains duplicate, missing, and redundant power grid load data, which are then filtered out by the data retrieval unit.

[0030] Preferably, the power grid data analysis module includes:

[0031] The data indexing unit is used to index pre-defined grid energy storage standard data;

[0032] Obtain grid load characterization data, and based on the grid load characterization data, index out the pre-set grid energy storage standard data used for analyzing and evaluating the grid load characterization data from the grid data storage module;

[0033] The data retrieval unit is used to retrieve pre-set grid energy storage standard data;

[0034] Retrieve the pre-defined grid energy storage standard data that is indexed and used for analyzing and evaluating grid load characterization data, and retrieve the grid energy storage standard data.

[0035] The analysis and evaluation unit is used to analyze and evaluate the power grid load characterization data;

[0036] Obtain grid load characterization data and grid energy storage standard data. Based on the grid energy storage standard data, analyze and evaluate the grid load characterization data to determine the grid load analysis results based on the load of each region.

[0037] Preferably, the analysis and evaluation unit analyzes and evaluates the power grid load characterization data and performs the following operations:

[0038] Acquire grid load characterization data and grid energy storage standard data;

[0039] Based on grid energy storage standard data, the grid load characterization data are analyzed and evaluated;

[0040] If the grid load characterization data is within the range of the grid energy storage standard data, the grid load analysis result based on the load of each region is determined to be that the grid power is in a surplus state, and there is no need to carry out hierarchical coordination control for the access of new energy to the grid.

[0041] If the grid load characterization data is not within the range of grid energy storage standard data, the grid load analysis result based on the load of each region indicates that the grid power supply is in a state of deficit, and it is necessary to carry out hierarchical coordinated control of the access of new energy to the grid.

[0042] Preferably, the hierarchical coordination control module includes:

[0043] The coordination analysis unit is used to coordinate and analyze the results of power grid load analysis.

[0044] Obtain the power grid load analysis results based on the load of each region, and conduct in-depth analysis of the power grid load analysis results based on data mining technology to identify the problems existing in the power grid under the operating state. In response to the problems existing in the power grid under the operating state, determine the corresponding hierarchical coordination control methods.

[0045] The coordination and control unit is used to perform hierarchical coordination and control of new energy grid access;

[0046] A hierarchical coordination control method is obtained, and hierarchical coordination control is performed on the grid connection of new energy sources based on the hierarchical coordination control method.

[0047] Preferably, the coordination and control unit performs hierarchical coordination and control of the grid connection of new energy sources, and performs the following operations:

[0048] If the grid load analysis results indicate that the grid power is in a surplus state and there is no need for hierarchical coordination control of new energy access to the grid, then the corresponding hierarchical coordination control method is to continuously monitor the grid status and respond to the grid status in a timely manner.

[0049] If the power grid load analysis results indicate that the power grid is in a state of power shortage and that hierarchical coordination control is required for the access of new energy sources to the power grid, the determined hierarchical coordination control method will transmit power supply instructions to the power grid terminal in a timely and intelligent manner. The power grid terminal will then intelligently access the new energy sources to the power grid based on the power grid load analysis results to provide power support for the loads in each region.

[0050] Preferably, the power grid data storage module includes:

[0051] The data storage unit is used to store the collected power grid load data, providing a supporting foundation for viewing the power grid load data;

[0052] The standard storage unit is used to store standard data on grid energy storage, providing a reference basis for the analysis and evaluation of grid load characterization data.

[0053] Compared with the prior art, the beneficial effects of the present invention are:

[0054] This invention collects real-time grid load data of various regions under operating conditions, processes the collected grid load data, determines grid load characterization data based on the load of each region, analyzes and evaluates the grid load characterization data based on pre-set grid energy storage standard data, determines the grid load analysis results based on the load of each region, and formulates corresponding hierarchical coordination control methods based on the grid load analysis results. Based on the hierarchical coordination control methods, hierarchical coordination control is carried out on the grid access of new energy sources, which can effectively coordinate and control the grid access of new energy sources and improve the utilization effect of new energy grid access. Attached Figure Description

[0055] Figure 1 This is a block diagram of the hierarchical coordination and control system for new energy grid access of the present invention;

[0056] Figure 2 This is a flowchart of the algorithm for the hierarchical coordinated control system for new energy grid access of the present invention. Detailed Implementation

[0057] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0058] To address the issue of poor performance of existing renewable energy grid integration due to its inability to effectively coordinate and control renewable energy sources within a tiered manner, please refer to [link to relevant documentation]. Figures 1-2 This embodiment provides the following technical solution:

[0059] A hierarchical coordination and control system for new energy grid access includes:

[0060] The power grid data acquisition module is used to collect power grid load data in various regions under operating conditions.

[0061] In this embodiment, as a preferred technical solution of the present invention, the power grid data acquisition module includes:

[0062] Current sensors are used to collect node currents of loads in various regions during operation.

[0063] Voltage sensors are used to collect node voltages of loads in various regions during operation.

[0064] Power sensors are used to collect node power of loads in various regions during operation.

[0065] By adopting the above technical solution, based on the collected node current, node voltage and node power, the grid load data of each region under the operating state can be determined, which facilitates the hierarchical coordinated control of new energy access to the grid.

[0066] The power grid data processing module is used to process the collected power grid load data and determine the power grid load characterization data based on the load of each region.

[0067] In this embodiment, as a preferred technical solution of the present invention, the power grid data processing module includes:

[0068] The data extraction unit is used to extract power grid load data;

[0069] Based on the hierarchical coordination and control requirements for new energy grid access, grid load data is extracted from the grid data acquisition module and transmitted to the data retrieval unit.

[0070] The data retrieval unit is used to retrieve power grid load data;

[0071] Based on the sequential retrieval method, the power grid load data is retrieved one by one;

[0072] Filter out the portion of grid load data that is not valuable for the hierarchical coordination and control of new energy grid access;

[0073] Identify grid load data that is valuable for hierarchical coordinated control of new energy grid access;

[0074] The data sorting unit is used to sort the power grid load data;

[0075] To acquire grid load data that is valuable for hierarchical coordination and control of new energy grid access, and to effectively sort the grid load data based on an internal sorting method, thereby determining the grid load data with a certain order;

[0076] The data calculation unit is used to calculate the power grid load data;

[0077] The system acquires grid load data in a certain order and calculates the grid load data to determine the grid load characterization data based on the load of each region.

[0078] Using the above technical solution, the power grid load data is extracted from the power grid data acquisition module by the data extraction unit, and the extracted power grid load data is transmitted to the data retrieval unit; the data retrieval unit retrieves the power grid load data to determine the power grid load data that is valuable for the hierarchical coordination and control of new energy access to the power grid; the data sorting unit sorts the power grid load data to determine the power grid load data with a certain order; and the data calculation unit calculates the power grid load data to determine the power grid load characterization data based on the load of each region.

[0079] In this embodiment, as a preferred technical solution of the present invention, the power grid load data extracted by the data extraction unit contains duplicate, missing and redundant power grid load data, and the duplicate, missing and redundant power grid load data contained in the power grid load data is filtered out by the data retrieval unit.

[0080] By adopting the above technical solution, the data retrieval unit can filter out duplicate, missing, and redundant power grid load data, thereby reducing the amount of data processing and improving data processing efficiency.

[0081] The power grid data analysis module is used to analyze and evaluate power grid load characterization data and determine the power grid load analysis results based on the load of each region.

[0082] In this embodiment, as a preferred technical solution of the present invention, the power grid data analysis module includes:

[0083] The data indexing unit is used to index pre-defined grid energy storage standard data;

[0084] Obtain grid load characterization data, and based on the grid load characterization data, index out the pre-set grid energy storage standard data used for analyzing and evaluating the grid load characterization data from the grid data storage module;

[0085] The data retrieval unit is used to retrieve pre-set grid energy storage standard data;

[0086] Retrieve the pre-defined grid energy storage standard data that is indexed and used for analyzing and evaluating grid load characterization data, and retrieve the grid energy storage standard data.

[0087] The analysis and evaluation unit is used to analyze and evaluate the power grid load characterization data;

[0088] Obtain grid load characterization data and grid energy storage standard data. Based on the grid energy storage standard data, analyze and evaluate the grid load characterization data to determine the grid load analysis results based on the load of each region.

[0089] Using the above technical solution, the data indexing unit indexes the pre-set grid energy storage standard data used for analyzing and evaluating grid load characterization data from the grid data storage module; the data retrieval unit retrieves the indexed grid energy storage standard data; and the analysis and evaluation unit analyzes and evaluates the grid load characterization data to determine the grid load analysis results based on the load of each region.

[0090] In this embodiment, as a preferred technical solution of the present invention, the analysis and evaluation unit analyzes and evaluates the power grid load characterization data and performs the following operations:

[0091] Acquire grid load characterization data and grid energy storage standard data;

[0092] Based on grid energy storage standard data, the grid load characterization data are analyzed and evaluated;

[0093] If the grid load characterization data is within the range of the grid energy storage standard data, the grid load analysis result based on the load of each region is determined to be that the grid power is in a surplus state, and there is no need to carry out hierarchical coordination control for the access of new energy to the grid.

[0094] If the grid load characterization data is not within the range of grid energy storage standard data, the grid load analysis result based on the load of each region indicates that the grid power supply is in a state of deficit, and it is necessary to carry out hierarchical coordinated control of the access of new energy to the grid.

[0095] The hierarchical coordination control module is used to perform hierarchical coordination control on the access of new energy to the power grid. Based on the power grid load analysis results, it formulates corresponding hierarchical coordination control methods and performs hierarchical coordination control on the access of new energy to the power grid based on the hierarchical coordination control methods.

[0096] In this embodiment, as a preferred technical solution of the present invention, the hierarchical coordination control module includes:

[0097] The coordination analysis unit is used to coordinate and analyze the results of power grid load analysis.

[0098] Obtain the power grid load analysis results based on the load of each region, and conduct in-depth analysis of the power grid load analysis results based on data mining technology to identify the problems existing in the power grid under the operating state. In response to the problems existing in the power grid under the operating state, determine the corresponding hierarchical coordination control methods.

[0099] The coordination and control unit is used to perform hierarchical coordination and control of new energy grid access;

[0100] A hierarchical coordination control method is obtained, and hierarchical coordination control is performed on the grid connection of new energy sources based on the hierarchical coordination control method.

[0101] By adopting the above technical solution, the load analysis results of the power grid are deeply mined and analyzed through the coordination analysis unit to identify the problems existing in the power grid under the operating state. For the problems existing in the power grid under the operating state, the corresponding hierarchical coordination control method is determined. The hierarchical coordination control of the access of new energy to the power grid is carried out through the coordination control unit.

[0102] In this embodiment, as a preferred technical solution of the present invention, the coordination control unit performs hierarchical coordination control on the grid connection of new energy sources and performs the following operations:

[0103] If the grid load analysis results indicate that the grid power is in a surplus state and there is no need for hierarchical coordination control of new energy access to the grid, then the corresponding hierarchical coordination control method is to continuously monitor the grid status and respond to the grid status in a timely manner.

[0104] If the power grid load analysis results indicate that the power grid is in a state of power shortage and that hierarchical coordination control is required for the access of new energy sources to the power grid, the determined hierarchical coordination control method will transmit power supply instructions to the power grid terminal in a timely and intelligent manner. The power grid terminal will then intelligently access the new energy sources to the power grid based on the power grid load analysis results to provide power support for the loads in each region.

[0105] The power grid data storage module is used to store collected power grid load data and power grid energy storage standard data used for analyzing and evaluating power grid load characterization data.

[0106] In this embodiment, as a preferred technical solution of the present invention, the power grid data storage module includes:

[0107] The data storage unit is used to store the collected power grid load data, providing a supporting foundation for viewing the power grid load data;

[0108] The standard storage unit is used to store standard data on grid energy storage, providing a reference basis for the analysis and evaluation of grid load characterization data.

[0109] Specifically, a hierarchical coordination and control system for new energy grid access is adopted to perform hierarchical coordination and control of new energy grid access. The hierarchical coordination and control situation of new energy grid access is shown in Table 1:

[0110] Table 1: Hierarchical Coordination Control of New Energy Grid Connection

[0111]

[0112]

[0113] Therefore, by collecting real-time grid load data of each region under operating conditions and processing the collected grid load data, the grid load characterization data based on the load of each region can be determined. Based on the pre-set grid energy storage standard data, the grid load characterization data can be analyzed and evaluated to determine the grid load analysis results based on the load of each region. Based on the grid load analysis results, a corresponding hierarchical coordination control method can be formulated. Based on the hierarchical coordination control method, hierarchical coordination control can be carried out on the grid access of new energy sources, which can effectively coordinate and control the grid access of new energy sources and improve the utilization effect of new energy grid access.

[0114] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0115] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hierarchical coordinated control system for new energy grid access, characterized in that, include: The power grid data acquisition module is used to collect power grid load data in various regions under operating conditions. The power grid data processing module is used to process the collected power grid load data and determine the power grid load characterization data based on the load of each region. The power grid data analysis module is used to analyze and evaluate power grid load characterization data and determine the power grid load analysis results based on the load of each region. The hierarchical coordination control module is used to perform hierarchical coordination control on the access of new energy to the power grid. Based on the power grid load analysis results, it formulates corresponding hierarchical coordination control methods and performs hierarchical coordination control on the access of new energy to the power grid based on the hierarchical coordination control methods. The power grid data storage module is used to store the collected power grid load data and the power grid energy storage standard data used for the analysis and evaluation of power grid load characterization data. The power grid data analysis module includes: The data indexing unit is used to index pre-defined grid energy storage standard data; Obtain grid load characterization data, and based on the grid load characterization data, index out the pre-set grid energy storage standard data used for analyzing and evaluating the grid load characterization data from the grid data storage module; The data retrieval unit is used to retrieve pre-set grid energy storage standard data; Retrieve the pre-defined grid energy storage standard data that is indexed and used for analyzing and evaluating grid load characterization data, and retrieve the grid energy storage standard data. The analysis and evaluation unit is used to analyze and evaluate the power grid load characterization data; Obtain grid load characterization data and grid energy storage standard data. Based on the grid energy storage standard data, analyze and evaluate the grid load characterization data to determine the grid load analysis results based on the load of each region. The analysis and evaluation unit analyzes and evaluates the power grid load characterization data and performs the following operations: Acquire grid load characterization data and grid energy storage standard data; Based on grid energy storage standard data, the grid load characterization data are analyzed and evaluated; If the grid load characterization data is within the range of the grid energy storage standard data, the grid load analysis result based on the load of each region is determined to be that the grid power is in a surplus state, and there is no need to carry out hierarchical coordination control for the access of new energy to the grid. If the grid load characterization data is not within the range of grid energy storage standard data, the grid load analysis result based on the load of each region indicates that the grid power supply is in a state of deficit, and it is necessary to carry out hierarchical coordinated control of the access of new energy to the grid.

2. The hierarchical coordination and control system for new energy grid access according to claim 1, characterized in that, The power grid data acquisition module includes: Current sensors are used to collect node currents of loads in various regions during operation. Voltage sensors are used to collect node voltages of loads in various regions during operation. Power sensors are used to collect node power of loads in various regions during operation. Based on the collected node current, node voltage, and node power, the power grid load data of each region under operating conditions is determined.

3. The hierarchical coordination and control system for new energy grid access according to claim 2, characterized in that, The power grid data processing module includes: The data extraction unit is used to extract power grid load data; Based on the hierarchical coordination and control requirements for new energy grid access, grid load data is extracted from the grid data acquisition module and transmitted to the data retrieval unit. The data retrieval unit is used to retrieve power grid load data; Based on the sequential retrieval method, the power grid load data is retrieved one by one; Filter out the portion of grid load data that is not valuable for the hierarchical coordination and control of new energy grid access; We identified grid load data that is valuable for the hierarchical coordinated control of new energy grid access.

4. A hierarchical coordinated control system for new energy grid access according to claim 3, characterized in that, The power grid data processing module also includes: The data sorting unit is used to sort the power grid load data; To acquire grid load data that is valuable for hierarchical coordination and control of new energy grid access, and to effectively sort the grid load data based on an internal sorting method, thereby determining the grid load data with a certain order; The data calculation unit is used to calculate the power grid load data; The system acquires grid load data in a certain order and calculates the grid load data to determine the grid load characterization data based on the load of each region.

5. A hierarchical coordinated control system for new energy grid access according to claim 4, characterized in that, The power grid load data extracted by the data extraction unit contains duplicate, missing, and redundant power grid load data. The data retrieval unit filters out the duplicate, missing, and redundant power grid load data contained in the power grid load data.

6. A hierarchical coordinated control system for new energy grid access according to claim 5, characterized in that, The hierarchical coordination control module includes: The coordination analysis unit is used to coordinate and analyze the results of power grid load analysis. Obtain the power grid load analysis results based on the load of each region, and conduct in-depth analysis of the power grid load analysis results based on data mining technology to identify the problems existing in the power grid under the operating state. In response to the problems existing in the power grid under the operating state, determine the corresponding hierarchical coordination control methods. The coordination and control unit is used to perform hierarchical coordination and control of new energy grid access; A hierarchical coordination control method is obtained, and hierarchical coordination control is performed on the grid connection of new energy sources based on the hierarchical coordination control method.

7. A hierarchical coordinated control system for new energy grid access according to claim 6, characterized in that, The coordination and control unit performs hierarchical coordination and control of new energy grid access, and performs the following operations: If the grid load analysis results indicate that the grid power is in a surplus state and there is no need for hierarchical coordination control of new energy access to the grid, then the corresponding hierarchical coordination control method is to continuously monitor the grid status and respond to the grid status in a timely manner. If the power grid load analysis results indicate that the power grid is in a state of power shortage and that hierarchical coordination control is required for the access of new energy sources to the power grid, the determined hierarchical coordination control method will transmit power supply instructions to the power grid terminal in a timely and intelligent manner. The power grid terminal will then intelligently access the new energy sources to the power grid based on the power grid load analysis results to provide power support for the loads in each region.

8. A hierarchical coordinated control system for new energy grid access according to claim 7, characterized in that, The power grid data storage module includes: The data storage unit is used to store the collected power grid load data, providing a supporting foundation for viewing the power grid load data; The standard storage unit is used to store standard data on grid energy storage, providing a reference basis for the analysis and evaluation of grid load characterization data.

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