Method and system for adjusting interaction of source, network, load and storage resources

Abstract

The application relates to the field of source network load storage resource regulation, in particular to a source network load storage resource regulation interaction method and system, which comprises the following steps: correcting the operation abnormal data of the power grid equipment in real time, and if the correction fails, the next step is performed; the operation abnormal data comprises temperature abnormality, current abnormality and voltage abnormality; comparing the power grid equipment operation time, the power grid load and the power grid equipment operation temperature corresponding to the operation abnormal data with corresponding safety thresholds, if one of the power grid equipment operation time, the power grid load and the power grid equipment operation temperature is less than or equal to the safety threshold, risk assessment is performed, energy storage or cross-regional scheduling is performed based on the risk assessment result, and if all of the power grid load and the power grid equipment operation temperature are greater than the corresponding safety thresholds, the power grid load and the power grid equipment operation temperature are adjusted to the safety thresholds, and then energy storage or cross-regional scheduling is performed; the application considers the influence of operation data and load on the scheduling strategy, considers the scheduling safety, and avoids excessive adjustment.

Description

Technical Field

[0001] This invention relates to the field of source-grid-load-storage resource regulation, and specifically to a method and system for regulating and interacting source-grid-load-storage resources. Background Technology

[0002] The Energy Internet achieves coordinated interaction among power sources, grids, loads, and energy storage at the source level, and guarantees personalized, comprehensive, and intelligent service needs at the service level, promoting the formation of an energy ecosystem and the development of new business models and formats. As the core and link of the Energy Internet, the interactive operation mode of the power system, encompassing power generation, grid, load, and energy storage, can be more widely applied throughout the energy industry and is crucial for driving the optimal allocation of resources across the entire energy system. The interactive operation of the power system, oriented towards power generation, grid, load, and energy storage, refers to the various interactive forms among power sources, grids, loads, and energy storage, such as source-source complementarity, source-grid coordination, grid-load interaction, grid-storage interaction, and source-load interaction, to more economically, efficiently, and safely improve the dynamic power balance capability of the power system. Essentially, it is an operation mode and technology that maximizes the utilization of energy resources.

[0003] Chinese patent CN202010045879.7 discloses a source-load-storage coordinated control method, device, and system for power grids. This includes calculating relevant parameters based on the current regional power grid operating status, real-time active power plan, and load forecast; obtaining relevant information; acquiring an optimization model, where the optimization model aims to maximize the operational efficiency of the regional power grid, and is constrained by active power regulation constraints of controllable equipment, total active power constraints of external interconnection branches of the regional power grid, active power balance constraints of the regional power grid, overload constraints of output equipment within the regional power grid, and active power limit constraints of transmission channels. Based on the relevant parameters and information, the optimization model is solved to obtain active power control command values ​​for the participating control equipment, and these commands are sent to the corresponding equipment. This scheme aims to maximize the operational efficiency of the regional power grid, taking into account the user's control intentions and costs, and achieving flexible interactive control of source, grid, load, and storage. However, the above scheme does not consider the impact of load, equipment operating conditions, and operational risks on control during the control process. Summary of the Invention

[0004] To address the impact of load, equipment operating conditions, and operational risks on power grid control in existing technologies, this invention proposes a method for regulating and interacting source-grid-load-storage resources, comprising:

[0005] The abnormal operation data of the power grid equipment is corrected in real time. If it cannot be corrected, the next step is performed. The abnormal operation data includes abnormal temperature, abnormal current and abnormal voltage.

[0006] The operating time, load, and temperature of the power grid equipment corresponding to the abnormal operation data are compared with the corresponding safety thresholds. If any one of the operating time, load, or temperature is less than or equal to the safety threshold, a risk assessment is conducted. Energy storage or cross-regional dispatch is then carried out based on the risk assessment results. If all of them are greater than the corresponding safety thresholds, the power grid load and operating temperature are adjusted to the safety thresholds before energy storage or cross-regional dispatch is carried out.

[0007] Preferably, if any one of the power grid equipment operating time, power grid load, and power grid equipment operating temperature is less than or equal to a safety threshold, a risk assessment is performed, and energy storage or cross-regional dispatch is performed based on the risk assessment results. The steps include:

[0008] Risk levels are classified based on the operating time and temperature of power grid equipment.

[0009] Based on the aforementioned risk level, power grid data is used for energy storage or cross-regional dispatch.

[0010] Preferably, the step of performing energy storage or cross-regional dispatch of power grid data based on the risk level specifically involves:

[0011] Power grid data with a risk level lower than the preset level will be stored for energy purposes, while power grid data with a risk level higher than the preset level will be dispatched across regions.

[0012] Preferably, the security threshold is obtained through the following steps:

[0013] Collect historical normal operation data of the power grid, and analyze the historical normal operation data to obtain safety thresholds.

[0014] Preferably, the step of obtaining the safety threshold based on historical normal operation data analysis is as follows:

[0015] The historical normal operation data is cleaned, and a safety threshold range is obtained based on the cleaned data.

[0016] The second aspect of this application provides a regulation and interaction system for source-grid-load-storage resources, including:

[0017] The correction module is used to correct abnormal operating data of power grid equipment in real time. If it cannot be corrected, it proceeds to the next step. The abnormal operating data includes abnormal temperature, abnormal current and abnormal voltage.

[0018] The adjustment module is used to compare the operating time, grid load, and grid equipment operating temperature corresponding to abnormal operating data with the corresponding safety thresholds. If any of the operating time, grid load, and grid equipment operating temperature is less than or equal to the safety threshold, a risk assessment is performed. Based on the risk assessment results, energy storage or cross-regional dispatch is performed. If all of them are greater than the corresponding safety thresholds, the grid load and grid equipment operating temperature are adjusted to the safety thresholds before energy storage or cross-regional dispatch is performed.

[0019] Preferably, if any one of the following parameters—grid equipment operating time, grid load, and grid equipment operating temperature—is less than or equal to a safety threshold, the regulation module performs a risk assessment and, based on the risk assessment results, performs energy storage or cross-regional dispatch. The steps include:

[0020] Risk levels are classified based on the operating time and temperature of power grid equipment.

[0021] Based on the aforementioned risk level, power grid data is used for energy storage or cross-regional dispatch.

[0022] Preferably, the adjustment module performs energy storage or cross-regional dispatching of power grid data based on the risk level as follows:

[0023] Power grid data with a risk level lower than the preset level will be stored for energy purposes, while power grid data with a risk level higher than the preset level will be dispatched across regions.

[0024] Preferably, the security threshold is obtained through the following steps:

[0025] Collect historical normal operation data of the power grid, and analyze the historical normal operation data to obtain safety thresholds.

[0026] Preferably, the step of obtaining the safety threshold based on historical normal operation data analysis is as follows:

[0027] The historical normal operation data is cleaned, and a safety threshold range is obtained based on the cleaned data.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0029] This invention provides a method and system for regulating and interacting with power grid, load, and storage resources, comprising: real-time correction of abnormal operation data of power grid equipment; if correction is not possible, proceeding to the next step; the abnormal operation data includes temperature anomalies, current anomalies, and voltage anomalies; comparing the operating time, load, and temperature of the power grid equipment corresponding to the abnormal operation data with corresponding safety thresholds; if any one of the operating time, load, or temperature is less than or equal to the safety threshold, a risk assessment is performed; energy storage or cross-regional dispatch is performed based on the risk assessment results; if all are greater than the corresponding safety thresholds, the load and temperature of the power grid equipment are adjusted to the safety thresholds before energy storage or cross-regional dispatch is performed. This application first performs preliminary correction based on the anomalies in temperature, current, and voltage of the power grid equipment during operation, without disconnecting the grid; if correction is not possible, a risk assessment is performed based on the operating status of the voltage equipment and the load of the power grid, and different dispatch strategies are formulated for different risk assessment results, which considers both dispatch safety and avoids over-regulation. Attached Figure Description

[0030] Figure 1 This is a flowchart of the source-grid-load-storage resource regulation and interaction method proposed in this invention;

[0031] Figure 2 This is a schematic diagram of the data anomaly detection process proposed in this invention;

[0032] Figure 3 This is a schematic diagram illustrating the generation process of the adjustment scheme proposed in this invention;

[0033] Figure 4 This is a schematic diagram illustrating the process of adjusting based on risk level as proposed in this invention.

[0034] Figure 5 This is a schematic diagram of the overall process of the source-grid-load-storage resource regulation and interaction method proposed in this invention;

[0035] Figure 6 This is a schematic diagram of the structure of the source-grid-load-storage resource regulation and interaction system proposed in this invention. Detailed Implementation

[0036] This invention proposes a method for regulating and interacting source-grid-load-storage resources. It first performs preliminary correction based on the abnormalities in temperature, current, and voltage of grid equipment during operation, without disconnecting the grid. If correction is not possible, it conducts a risk assessment based on the operating status of voltage equipment and grid load, and formulates different scheduling strategies for different risk levels, which takes into account both safety and avoids over-regulation.

[0037] Example 1:

[0038] A method for regulating and interacting source-grid-load-storage resources, such as Figure 1As shown, it includes the following steps S1 and S2:

[0039] S1: Perform real-time correction of abnormal operating data of power grid equipment; if correction is not possible, proceed to the next step; the abnormal operating data includes abnormal temperature, abnormal current, and abnormal voltage.

[0040] like Figure 2 As shown, temperature sensors, current sensors, and voltage sensors can be used to monitor the operation of equipment in the power grid, as well as the load in the power grid. Real-time collection of load data and the real-time operating status of related equipment ensures data timeliness and accuracy, guarantees safety during dispatching, and reduces safety hazards. Combining the results of anomaly diagnosis and analysis with corrective measures can improve the accuracy of maintenance and repair, thereby increasing actual work efficiency.

[0041] Compare the equipment operation data with the normal values ​​to obtain abnormal operation data, perform preliminary adjustment and correction on the abnormal operation data, and if the correction cannot be performed, proceed to step S2.

[0042] This step also includes real-time load monitoring to track equipment load and generate forecast reports, providing insights into the real-time load during the scheduling process and further ensuring security.

[0043] S2: Compare the operating time, load, and temperature of the power grid equipment corresponding to the abnormal operation data with the corresponding safety thresholds. If any one of the operating time, load, or temperature is less than or equal to the safety threshold, a risk assessment is performed. Based on the risk assessment results, energy storage or cross-regional dispatch is carried out. If all of them are greater than the corresponding safety thresholds, the power grid load and temperature are adjusted to the safety thresholds before energy storage or cross-regional dispatch is carried out.

[0044] like Figure 3 As shown, in step S2, a safety database is established based on the historical normal operation data of the power grid. The data in the safety database is cleaned to remove abnormal data. Then, the data is analyzed to obtain safety thresholds, such as operating time thresholds, operating load thresholds, and operating temperature thresholds.

[0045] If any one of the following parameters—grid equipment operating time, grid load, and grid equipment operating temperature—is less than or equal to a safety threshold, a risk assessment is conducted. Based on the risk assessment results, energy storage or inter-regional dispatch is implemented, and the risk assessment includes, for example: Figure 4 As shown, the steps include the following steps S21 and S22:

[0046] S21: Risk levels are classified based on the operating time and temperature of power grid equipment.

[0047] For example, risk assessment levels include Level 1, Level 2, and Level 3 risks. Level 1 risk is based on continuous operation for more than 30 days at an operating temperature exceeding 40 degrees Celsius; Level 2 risk is based on continuous operation for more than 80 days at an operating temperature exceeding 60 degrees Celsius; and Level 3 risk is based on continuous operation for more than 100 days at an operating temperature exceeding 75 degrees Celsius. Establishing a three-tiered risk assessment system helps staff develop corresponding solutions and improves work efficiency.

[0048] S22: Perform energy storage or cross-regional dispatch of power grid data based on the risk level.

[0049] For example, power grid data with a risk level lower than the preset level can be directly stored for energy, while power grid data with a risk level higher than the preset level can be dispatched across regions.

[0050] In summary, as Figure 5 As shown, the main steps of this application include first collecting data and building a security database, then conducting a risk assessment on the collected data, building a regulation strategy based on the risk assessment results, and finally generating a regulation scheme.

[0051] Example 2:

[0052] Based on the same inventive concept, this invention also provides a system for regulating and interacting source-grid-load-storage resources, such as... Figure 6 As shown, it includes:

[0053] The correction module is used to correct abnormal operating data of power grid equipment in real time. If it cannot be corrected, it proceeds to the next step. The abnormal operating data includes abnormal temperature, abnormal current and abnormal voltage.

[0054] The adjustment module is used to compare the operating time, grid load, and grid equipment operating temperature corresponding to abnormal operating data with the corresponding safety thresholds. If any of the operating time, grid load, and grid equipment operating temperature is less than or equal to the safety threshold, a risk assessment is performed. Based on the risk assessment results, energy storage or cross-regional dispatch is performed. If all of them are greater than the corresponding safety thresholds, the grid load and grid equipment operating temperature are adjusted to the safety thresholds before energy storage or cross-regional dispatch is performed.

[0055] In a further preferred embodiment, if any one of the following parameters—grid equipment operating time, grid load, and grid equipment operating temperature—is less than or equal to a safety threshold, the regulating module performs a risk assessment. Based on the risk assessment results, energy storage or cross-regional dispatch is performed, including the following steps:

[0056] Risk levels are classified based on the operating time and temperature of power grid equipment.

[0057] Based on the aforementioned risk level, power grid data is used for energy storage or cross-regional dispatch.

[0058] In a further preferred embodiment, the adjustment module performs energy storage or cross-regional dispatch of power grid data based on the risk level as follows:

[0059] Power grid data with a risk level lower than the preset level will be stored for energy purposes, while power grid data with a risk level higher than the preset level will be dispatched across regions.

[0060] In a further preferred embodiment, the security threshold is obtained through the following steps:

[0061] Collect historical normal operation data of the power grid, and analyze the historical normal operation data to obtain safety thresholds.

[0062] In a further preferred embodiment, the step of obtaining the safety threshold based on historical normal operation data is as follows:

[0063] The historical normal operation data is cleaned, and a safety threshold range is obtained based on the cleaned data.

[0064] This application's system also includes an input module, a data transmission module, a human-computer interaction interface, and a data storage module, wherein:

[0065] The input module is used to input power grid monitoring data;

[0066] The data transmission module is used to transmit the power grid monitoring data.

[0067] Human-computer interaction interface, used for human interaction;

[0068] The data storage module is used to store data and scheduling schemes.

[0069] The above are merely embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention are included within the scope of the claims of the present invention pending approval.

Claims

1. A method for regulating and interacting source-grid-load-storage resources, characterized in that, include: The abnormal operation data of the power grid equipment is corrected in real time. If it cannot be corrected, the next step is performed. The abnormal operation data includes abnormal temperature, abnormal current and abnormal voltage. The operating time, load, and temperature of the power grid equipment corresponding to the abnormal operation data are compared with the corresponding safety thresholds. If any one of the operating time, load, or temperature is less than or equal to the safety threshold, a risk assessment is conducted. Energy storage or cross-regional dispatch is then carried out based on the risk assessment results. If all of them are greater than the corresponding safety thresholds, the power grid load and operating temperature are adjusted to the safety thresholds before energy storage or cross-regional dispatch is carried out.

2. The method for regulating and interacting source-grid-load-storage resources according to claim 1, characterized in that, If any one of the power grid equipment operating time, power grid load, and power grid equipment operating temperature is less than or equal to a safety threshold, a risk assessment is conducted. Based on the risk assessment results, energy storage or cross-regional dispatch is performed. The steps include: Risk levels are classified based on the operating time and temperature of power grid equipment. Based on the aforementioned risk level, power grid data is used for energy storage or cross-regional dispatch.

3. The method for regulating and interacting source-grid-load-storage resources according to claim 2, characterized in that, The specific steps for energy storage or cross-regional dispatching of power grid data based on the risk level are as follows: Power grid data with a risk level lower than the preset level will be stored for energy purposes, while power grid data with a risk level higher than the preset level will be dispatched across regions.

4. The method for regulating and interacting source-grid-load-storage resources according to claim 1, characterized in that, The security threshold is obtained through the following steps: Collect historical normal operation data of the power grid, and analyze the historical normal operation data to obtain safety thresholds.

5. The method for regulating and interacting source-grid-load-storage resources according to claim 4, characterized in that, The steps for obtaining the safety threshold based on historical normal operation data are as follows: The historical normal operation data is cleaned, and a safety threshold range is obtained based on the cleaned data.

6. A system for regulating and interacting source-grid-load-storage resources, characterized in that, include: The correction module is used to correct abnormal operating data of power grid equipment in real time. If it cannot be corrected, it proceeds to the next step. The abnormal operating data includes abnormal temperature, abnormal current and abnormal voltage. The adjustment module is used to compare the operating time, grid load, and grid equipment operating temperature corresponding to abnormal operating data with the corresponding safety thresholds. If any of the operating time, grid load, and grid equipment operating temperature is less than or equal to the safety threshold, a risk assessment is performed. Based on the risk assessment results, energy storage or cross-regional dispatch is performed. If all of them are greater than the corresponding safety thresholds, the grid load and grid equipment operating temperature are adjusted to the safety thresholds before energy storage or cross-regional dispatch is performed.

7. The source-grid-load-storage resource regulation and interaction system according to claim 6, characterized in that, If any one of the power grid equipment operating time, power grid load, and power grid equipment operating temperature is less than or equal to a safety threshold, the regulation module performs a risk assessment and, based on the risk assessment results, performs energy storage or cross-regional dispatch. The steps include: Risk levels are classified based on the operating time and temperature of power grid equipment. Based on the aforementioned risk level, power grid data is used for energy storage or cross-regional dispatch.

8. The source-grid-load-storage resource regulation and interaction system according to claim 7, characterized in that, The regulation module performs energy storage or cross-regional dispatch of power grid data based on the risk level as follows: Power grid data with a risk level lower than the preset level will be stored for energy purposes, while power grid data with a risk level higher than the preset level will be dispatched across regions.

9. The source-grid-load-storage resource regulation and interaction system according to claim 6, characterized in that, The security threshold is obtained through the following steps: Collect historical normal operation data of the power grid, and analyze the historical normal operation data to obtain safety thresholds.

10. The source-grid-load-storage resource regulation and interaction system according to claim 9, characterized in that, The steps for obtaining the safety threshold based on historical normal operation data are as follows: The historical normal operation data is cleaned, and a safety threshold range is obtained based on the cleaned data.

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