CN-122000896-A - Substation total stop simulation analysis method, system, equipment and medium

CN122000896ACN 122000896 ACN122000896 ACN 122000896ACN-122000896-A

Abstract

The application relates to the technical field of substation management, in particular to a substation complete stop simulation analysis method, a system, equipment and a medium, which comprise the steps of accessing multi-source data of a power grid dispatching system, analyzing the physical connection relation of primary equipment and generating a power grid topology model; the method comprises the steps of setting operation mode parameters through a human-computer interaction interface based on a model, generating an operation mode configuration file, loading an operation state of a power grid in a power grid topology model according to the configuration file, receiving a selection instruction of a target transformer substation, performing topology traversal and electrical influence analysis, outputting a total stop influence analysis result comprising an affected equipment list and load change, calculating a power grid event grade according to the result, automatically filling information into a preset report Wen Moban, and generating a structured total stop analysis decision message. The application realizes the full-flow automation and structuring from data integration, simulation deduction to report generation of the substation total stop analysis, and remarkably improves the analysis efficiency and decision accuracy.

Inventors

CHEN JUN
HE CHENG
Kui Shouchen
YU SHAOLONG
YANG MENGNING
ZHANG HONGYAN
LIU TAO
MENG XUAN

Assignees

山东鲁软数字科技有限公司

Dates

Publication Date: 20260508
Application Date: 20260115

Claims (10)

1. The substation total stop simulation analysis method is characterized by comprising the following steps of: S1, accessing multi-source data of a power grid dispatching system, analyzing the physical connection relation of primary equipment in a transformer substation, and generating a power grid topology model; s2, setting operation mode parameters and generating a structured operation mode configuration file based on a power grid topology model through a man-machine interaction interface, wherein the operation mode configuration file comprises a device connection relation and a power supply configuration scheme; s3, loading a power grid operation state in a power grid topology model according to the operation mode configuration file; receiving a selection instruction of a user for a target power failure substation, performing topology traversal and electrical influence analysis based on a power grid topology model, and outputting a total stop influence analysis result containing an affected equipment list and load change; and S4, calculating the power grid event grade according to the total stop influence analysis result, and automatically filling information in the total stop influence analysis result into a preset message template to generate a structured total stop analysis decision message.
2. The substation total stop simulation analysis method according to claim 1, wherein in step S1, the multi-source data of the power grid dispatching system includes: the remote signaling data provided by the SCADA system comprises a unique identifier of primary equipment, a breaker state signal and an isolating switch state signal; The equipment account data comprises unique identification codes, standard names, nameplate parameters and electrical properties of primary equipment; GIS geographic information system data comprising geographic coordinate information and space topology identification of primary equipment; the real-time database data of the D5000 system or the EMS energy management system comprises the operation parameters and connection attributes of the primary equipment.
3. The substation total stop simulation analysis method according to claim 2, wherein in step S1, analyzing the physical connection relation of the primary devices in the substation to generate the power grid topology model includes: Aligning and matching a primary equipment unique identifier in SCADA remote signaling data, a primary equipment standard name in equipment ledger data and a primary equipment space topology identifier in GIS geographic information system data based on a predefined equipment naming rule to form a unified equipment identifier mapping relation; Based on a predefined voltage class mapping rule and an electrical wiring logic rule, judging the connection state of the equipment voltage class and the bus according to the SCADA remote signaling state; Traversing primary equipment nodes by using a spanning tree algorithm, deducing a physical connection path between primary equipment based on electrical connectivity, identifying and eliminating isolated nodes and false connection by checking consistency of connection relations, and outputting an initial topological structure; Docking a real-time database of a D5000 system or an EMS energy management system to obtain operation parameters and connection attributes of primary equipment; accurately mapping the acquired equipment operation parameters and the connection attributes to corresponding primary equipment nodes in an initial topological structure by utilizing a unified equipment identifier mapping relation; Based on an initial topological structure attached with complete equipment parameters and connection attributes, a power grid topological model is built by taking a CIM public information model as a standard, and a SVG scalable vector graphics technology is integrated in the power grid topological model to realize the functions of dynamic rendering and man-machine interaction of a topological graph.
4. The substation total stop simulation analysis method according to claim 1, wherein in step S2, setting the operation mode parameters through the man-machine interaction interface includes: building a graphical man-machine interaction interface based on a power grid topology model; setting connection relations of a main transformer, a line and a bus in a power grid topology model in a man-machine interaction interface; in a man-machine interaction interface, a main power supply and a standby power supply of a transformer substation are designated for the transformer substation in the power grid topology model; in the man-machine interaction interface, the user special line attribute of the line in the power grid topology model is identified, and corresponding user information is associated.
5. The substation total stop simulation analysis method according to claim 1, wherein in step S3, performing topology traversal based on the power grid topology model includes: providing a visual selection interface, and receiving a selection instruction of a user for a target power failure substation; Taking a target power failure transformer substation as a starting point, and performing topology traversal along an electrical connection path in a power grid topology model by adopting a breadth-first search algorithm; and analyzing the affected associated substations and lines after the complete stop of the target substation based on the electrical connectivity decision logic.
6. The substation total stop simulation analysis method according to claim 1, wherein in step S4, calculating the grid event level according to the total stop influence analysis result includes: based on the total stop influence analysis result, acquiring the duty ratio of the load loss, the number of affected substations and the number of affected important users; determining corresponding load loss duty ratio weight according to the load loss duty ratio, the number of affected substations and the threshold interval where the number of affected important users is located Number weight of transformer substation Important user impact weight ; Calculating event rank scores The formula is: Wherein, the 、、 Respectively is a preset fixed coefficient, and =1; Mapping rules and event class scores according to predefined score intervals and event classes And determining the power grid event grade in the score interval.
7. The substation total stop simulation analysis method according to claim 1, wherein in step S4, automatically filling information in the total stop influence analysis result into a preset message template comprises: Establishing a mapping relation between data fields in the full stop influence analysis result and placeholders in a message template; automatically extracting structured data in the analysis result of the full stop influence by a document object model analyzer; and filling the extracted data into the corresponding position of the message template according to the mapping relation.
8. A substation all-stop simulation analysis system, configured to implement the substation all-stop simulation analysis method according to any one of claims 1 to 7, comprising: the power grid topology model generation module is used for accessing multi-source data of the power grid dispatching system, analyzing the physical connection relation of primary equipment in the transformer substation and generating a power grid topology model; the configuration file generation module is used for setting operation mode parameters through a human-computer interaction interface based on the power grid topology model and generating a structured operation mode configuration file, wherein the operation mode configuration file comprises a device connection relation and a power supply configuration scheme; The analysis result generation module is used for loading the running state of the power grid in the power grid topological model according to the running mode configuration file, receiving a selection instruction of a user for a target power failure transformer substation, performing topology traversal and electrical influence analysis based on the power grid topological model, and outputting a total stop influence analysis result containing an affected equipment list and load change; and the decision message generation module is used for calculating the power grid event grade according to the total stop influence analysis result, automatically filling information in the total stop influence analysis result into a preset message template, and generating a structured total stop analysis decision message.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor is adapted to implement the steps of the substation all-stop simulation analysis method according to any of the claims 1-7 when the computer program is executed.
10. A storage medium having stored thereon a computer program, which when executed by a processor performs the steps of the substation all-stop simulation analysis method according to any of claims 1-7.

Description

Substation total stop simulation analysis method, system, equipment and medium Technical Field The application relates to the technical field of substation management, in particular to a substation total stop simulation analysis method, a system, equipment and a medium. Background As the power grid scale continues to expand and the structure is increasingly complex, the transformer substation is used as a key node for power transmission and distribution, and the safe and stable operation of the transformer substation is crucial to the reliability of the whole power grid. The substation total stop simulation analysis is developed, the power failure risk can be effectively estimated, the fault influence can be deduced, and the recovery strategy can be optimized, so that the method is an important support technology for power grid dispatching operation and emergency management. Currently, for substation total outage analysis, it is common to rely on existing energy management systems or dispatch automation systems (e.g., D5000 systems). The analyst needs to manually derive relevant operation data, equipment parameters and wiring information from the systems, the data acquisition and monitoring system and the equipment management system, and carry out carding of the power grid topology, assumption of the operation mode and preliminary evaluation of power failure influence in an offline environment through manual interpretation and empirical analysis to finally form an analysis report. However, the substation total stop analysis method has obvious limitations that the analysis process is highly dependent on manual extraction and integration of data from a multi-source heterogeneous system, time and effort are consumed, consistency and accuracy of the constructed power grid model for analysis and the topology and parameters of a real-time system are difficult to ensure, the operation mode is set and modified in a lack of direct and structural interaction with a visual power grid model, so that the construction of an analysis scene is not flexible and visual, the analysis of the power failure influence is mainly carried out by logical deduction depending on the experience of a dispatcher, the automatic traversal and quantitative calculation based on a standard topology model and a systematic algorithm is lack, the comprehensiveness and objectivity of an analysis result are to be improved, the presentation of an analysis conclusion and the judgment of an event level are mostly manual writing and judgment, the report generation efficiency is low, and the standardization and the structural degree are insufficient. Disclosure of Invention Aiming at the technical problems of low efficiency, poor consistency, insufficient objectivity and low standardization degree of the conventional substation total stop analysis method which is highly dependent on manual multi-source data integration, offline experience analysis and report programming, the application provides the substation total stop simulation analysis method, system, equipment and medium, which realize the full flow automation and structuring from data access, model construction, mode setting, intelligent analysis to report generation and remarkably improve the efficiency, accuracy, objectivity and standardization level of the substation total stop analysis. In a first aspect, the application provides a substation total stop simulation analysis method, which comprises the following steps: S1, accessing multi-source data of a power grid dispatching system, analyzing the physical connection relation of primary equipment in a transformer substation, and generating a power grid topology model; s2, setting operation mode parameters and generating a structured operation mode configuration file based on a power grid topology model through a man-machine interaction interface, wherein the operation mode configuration file comprises a device connection relation and a power supply configuration scheme; s3, loading a power grid operation state in a power grid topology model according to the operation mode configuration file; receiving a selection instruction of a user for a target power failure substation, performing topology traversal and electrical influence analysis based on a power grid topology model, and outputting a total stop influence analysis result containing an affected equipment list and load change; and S4, calculating the power grid event grade according to the total stop influence analysis result, and automatically filling information in the total stop influence analysis result into a preset message template to generate a structured total stop analysis decision message. It should be further noted that, in step S1, the multi-source data of the power grid dispatching system includes: the remote signaling data provided by the SCADA system comprises a unique identifier of primary equipment, a breaker state signal and an isolating switch state signal; The equipment