Method for generating typical interval template of transformer substation
By making common judgments on the core characteristics and loop characteristics of the interval in the substation design scheme, a typical interval template is constructed, which solves the problems of traditional long design cycle, high cost, poor compatibility and low operation and maintenance efficiency, and achieves a fast, safe and reliable design.
Patent Information
- Application Number
- CN202510016831.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2025-05-06
AI Technical Summary
Traditional substation designs have problems such as long design cycle, high cost, poor equipment compatibility and low operation and maintenance efficiency, resulting in design errors and potential safety risks.
By collecting design schemes for different types of intervals, extracting core features and loop features, making common judgments, and building typical interval templates to reduce design time and cost, and improving design reliability and security.
The design work of a new project has been quickly launched, ensuring design quality and consistency, reducing design time and cost, and improving design reliability and safety.
Smart Images
Figure CN119940330A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of intelligent substations, and in particular to a method for generating a typical interval template of a substation. Background Art
[0002] In terms of substation design, although the traditional customized design method can meet the needs of specific projects, it often has problems such as long design cycle, high cost, and poor equipment compatibility. The design differences between different projects are large, resulting in a large amount of manpower, material and financial resources in the construction and operation and maintenance process. In addition, customized design is also prone to design errors and omissions, bringing potential risks to the safe and stable operation of the power system. The main manifestations are: 1) Design diversification: The current substation design is often customized according to the specific project requirements, lacking unified standards and specifications, resulting in a long design cycle and high cost. 2) Equipment compatibility: The equipment provided by different equipment manufacturers has differences in interfaces, communication protocols, etc., which increases the complexity of design, debugging and operation and maintenance. 3) Low operation and maintenance efficiency: Due to the lack of standardized design templates, operation and maintenance personnel need to spend a lot of time to familiarize themselves with equipment layout, wiring methods, etc. when facing different substations, which reduces the operation and maintenance efficiency. Summary of the invention
[0003] In view of the above-mentioned prior art, the present invention provides a method for generating a typical interval template of a substation, mainly to solve the technical problems existing in the above-mentioned background technology.
[0004] To achieve the above object, the technical solution of the embodiment of the present invention is implemented as follows:
[0005] A method for generating a typical interval template of a substation, the method comprising the following steps;
[0006] Collect design proposals for different types of intervals;
[0007] Extracting features of corresponding type intervals from the design scheme, the extracted features including core features and loop features;
[0008] The core features and loop features of different types of intervals are judged for commonality, and the core common features and loop common features are separated;
[0009] A typical interval template is constructed based on the common features of the core and the common features of the loop.
[0010] Optionally, the design schemes for the different types of intervals include a line interval design scheme, a main transformer interval design scheme, and a busbar interval design scheme.
[0011] Optionally, the core features include equipment configuration, wiring method, protection configuration, panel layout, and terminal strip design. The specific steps of extracting the core features include: extracting rule statements from the substation equipment layout specification text, and using the deep learning model BERT of transfer learning technology to semantically annotate the design statements in the design schemes of different types of intervals to obtain multiple feature semantic labels of corresponding types, performing K-Means clustering on the multiple feature semantic labels, and summarizing the semantic labels with the same meaning into a feature node, generating a feature tree between the multiple feature nodes, each feature tree corresponding to all the core features of a type of interval, and the feature tree having multiple feature nodes, each of which is associated with a design statement.
[0012] Optionally, the loop characteristics include a current transformer loop, a voltage transformer loop, and a protection loop, and the specific steps of extracting the loop characteristics include:
[0013] Extract I ED configuration information, topological relationships and communication interfaces from the SCD files of the design schemes of different types of bays;
[0014] Parse the Inputs node in the SCD file, extract the GOOSE and SV signal connection relationship between I ED devices, and generate edges based on the aforementioned connection relationship;
[0015] Select the starting node of any loop, execute the recognition algorithm from the starting node, traverse all adjacent nodes along the direction of signal flow until the end device is encountered. The set of nodes traversed constitutes the access path, and the edge weights are assigned to the access path. Taking the starting node as the starting point, the edge with the largest weight is selected to form the loop feature.
[0016] Optionally, the core features of different types of intervals are judged for commonality, specifically including: performing FP-Growth mining algorithm on the feature trees generated for different types of intervals, extracting subtree structures that frequently appear in multiple feature trees, and the core features corresponding to the subtree structures are the core common features.
[0017] Optionally, the loop features of different types of intervals are judged for commonality, specifically including: using a PrefixSpan mining algorithm on the feature trees generated for different types of intervals to identify devices that appear multiple times in the loop features as core loop commonality features.
[0018] Optionally, a deep learning model BERT using transfer learning technology extracts rule features from "General Equipment for State Grid Corporation's Transmission and Transformation Projects - 110(66)~750kV Smart Substation Secondary Equipment", "Standardized Design Specifications for Line Protection and Auxiliary Devices", "Standardized Design Specifications for Transformers, High-Voltage Shunt Reactors and Busbar Protection and Auxiliary Devices", and "Typical Designs for State Grid Corporation's Transmission and Transformation Projects", and generates a typical interval template based on the rule features, wherein the template contains interval content entries.
[0019] Optionally, the core loop common features and core common features are imported into interval content entries to obtain a complete typical interval template.
[0020] The beneficial effect of the present invention is that by summarizing and generalizing typical designs and typical circuits, the commonalities and differences of different types of intervals can be extracted. Based on these commonalities, a standard typical interval template is first generated. By adding different differences to each generated interval template, a corresponding specific typical interval model can be obtained, which allows designers to quickly start the design work of a new project while ensuring the quality and consistency of the design. By applying the typical interval model, the design time and cost can be reduced while improving the reliability and safety of the design. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a flow chart of a method for generating a typical interval template of a substation in an embodiment of the present application. DETAILED DESCRIPTION
[0022] The technical solution of the present invention is further elaborated in detail below in conjunction with the drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. In the following description, the expression "some embodiments" is related to a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.
[0023] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present invention. However, it is apparent to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.
[0024] It should be understood that the present invention can be implemented in different forms and should not be interpreted as being limited to the embodiments proposed herein. On the contrary, providing these embodiments will make the disclosure thorough and complete, and the scope of the present invention will be fully conveyed to those skilled in the art. And the purpose of the terms used herein is only to describe specific embodiments and is not intended to be a limitation of the present invention. When used herein, the singular forms of "one", "one" and "said / the" are also intended to include plural forms, unless the context clearly indicates another way. It should also be understood that the terms "compose" and / or "include" when used in this specification determine the presence of the features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or groups. When used herein, the term "and / or" includes any and all combinations of the relevant listed items.
[0025] It should also be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "inside", "outside", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.
[0026] In order to fully understand the present invention, a detailed structure will be proposed in the following description to illustrate the technical solution proposed by the present invention. The optional embodiments of the present invention are described in detail as follows, but in addition to these detailed descriptions, the present invention may also have other implementations.
[0027] Example 1
[0028] Please refer to the attached Figure 1 ,This application provides a method for generating a typical interval template of a substation, the method comprising the following steps;
[0029] S1. Collect design solutions for different types of intervals;
[0030] S2. extracting features of the corresponding type interval from the design scheme, the extracted features including core features and loop features;
[0031] S3, judging the commonality of the core features and loop features of different types of intervals, and separating the core common features and loop common features;
[0032] S4. Construct a typical interval template based on the core common features and loop common features.
[0033] Specifically, before implementing this method, it is necessary to systematically sort out various design specifications, clarify the relationships and differences between the specifications, ensure the consistency and accuracy of subsequent designs, and extract the main features of typical intervals through detailed analysis of the design specifications, such as equipment configuration, wiring method, protection configuration, etc.
[0034] Typical design and typical circuit are the core contents of substation design. By summarizing and generalizing typical design and typical circuit, the commonalities and differences of different types of bays can be extracted. Based on these commonalities, standard typical bay templates are first generated. By adding different differences to each generated bay template, the corresponding specific typical bay model can be obtained. Specifically, the typical bay model provides a general design framework, and the specific bays (such as main transformer bays, line bays, and busbar bays) are customized based on this framework according to specific technical requirements and operating conditions. This relationship allows designers to quickly start the design work of new projects while ensuring the quality and consistency of the design. By applying the typical bay model, design time and cost can be reduced while improving the reliability and safety of the design.
[0035] In an optional implementation, the design schemes for the different types of bays include a line bay design scheme, a main transformer bay design scheme, and a bus bay design scheme.
[0036] In an optional embodiment, the core features include equipment configuration, wiring method, protection configuration, panel layout, and terminal strip design. The specific steps of extracting the core features include: extracting rule statements from the substation equipment layout specification text, using the deep learning model BERT of transfer learning technology to semantically annotate the design statements in the design schemes of different types of intervals, and obtaining multiple feature semantic labels of corresponding types, performing K-Means clustering on the multiple feature semantic labels, and summarizing the semantic labels with the same meaning into a feature node, generating a feature tree between the multiple feature nodes, each feature tree corresponding to all the core features of a type of interval, and the feature tree having multiple feature nodes, each of which is associated with a design statement.
[0037] In an optional implementation, the loop features include a current transformer loop, a voltage transformer loop, and a protection loop, and the specific steps of extracting the loop features include:
[0038] Extract I ED configuration information, topological relationships and communication interfaces from the SCD files of the design schemes of different types of bays;
[0039] Parse the Inputs node in the SCD file, extract the GOOSE and SV signal connection relationship between I ED devices, and generate edges based on the aforementioned connection relationship;
[0040] Select the starting node of any loop, execute the recognition algorithm from the starting node, traverse all adjacent nodes along the direction of signal flow until the end device is encountered. The set of nodes traversed constitutes the access path, and the edge weights are assigned to the access path. Taking the starting node as the starting point, the edge with the largest weight is selected to form the loop feature.
[0041] Specifically, the extraction of loop features is based on the signal connection relationships between intelligent electronic devices (IEDs). These connections include GOOSE (Generic Object Oriented Substation Event) and SV (Sampled Value) communication protocols, which are part of the IEC 61850 standard and are used to support interoperability between IEDs produced by different manufacturers.
[0042] First, obtain the configuration information, topology, and communication interface of the I ED from the SCD (Substation Configuration Description) file. The SCD file is a configuration document for the entire substation automation system. It contains the instantiation configuration of all I EDs, that is, how the I ED devices installed on site are configured to perform their functions. This configuration information is crucial to understanding the functions of each I ED and its role in the network. In addition, the topological relationship reveals how I EDs interact with each other through physical or logical connections, while the communication interface defines the data exchange method between I ED and the outside world or other I EDs.
[0043] Next, the Inputs node in the SCD file is parsed to extract the specific GOOSE and SV signal connection relationships between I ED devices. The Inputs node records the data input from other I EDs, which is very important for building the signal flow graph between I EDs. By analyzing these connection relationships, edges representing the communication paths between I EDs can be created. Each edge represents a specific signal transmission line, such as a trip command sent by a protection device to a circuit breaker, or a measurement value provided by a current transformer to a monitoring system.
[0044] Then, a starting node of a loop is selected as the starting point to start the identification algorithm. The algorithm will traverse all adjacent nodes connected to the starting node along the direction of signal flow, and this process continues until the end device is encountered. In this process, the set of nodes passed through constitutes the access path, which is actually a complete signal transmission path, such as starting from the current transformer, passing through multiple I EDs, and finally reaching the monitoring system. Edge weights are assigned to each edge on the access path, and the weights may reflect factors such as the importance and frequency of signal transmission. Depending on the weights, those edges with higher weights can be selected as the key parts of the loop characteristics, which helps to determine which signal paths are most critical to the normal operation of the substation.
[0045] Finally, the loop characteristics formed through the above steps can not only reflect the complex communication network between I EDs in the actual substation, but also help designers better understand and optimize the design of the substation. By judging the commonality of loop characteristics of different types of bays, we can find out the common characteristics of the core loops that are generally applicable, and then provide strong support for the construction of standardized typical bay templates. This method ensures that even different types of substation bays can maintain a certain degree of design consistency while meeting specific technical requirements, thereby improving design efficiency and reducing maintenance costs.
[0046] In an optional embodiment, the core features of different types of intervals are judged for commonality, specifically including: performing FP-Growth mining algorithm on the feature trees generated for different types of intervals, extracting subtree structures that frequently appear in multiple feature trees, and the core features corresponding to the subtree structures are the core common features.
[0047] First, for each type of bay, its core features are extracted using the method described above, and these features are organized into a feature tree. Each node in the feature tree represents a specific design feature, such as device configuration, wiring method, protection configuration, etc., and the connections between nodes represent the logical relationship or dependency between these features. Different bay types may produce different feature trees because their specific designs and requirements vary.
[0048] Then, the FP-Growth algorithm is applied to analyze these feature trees. The core idea of FP-Growth is to build a FP tree (Frequent Pattern Tree), which is a compressed data structure used to efficiently store and process frequent item sets. In this process, the algorithm traverses all input feature trees and counts the frequency of each feature and its combination. When building the FP tree, only those features and feature combinations whose frequency exceeds a predefined threshold will be taken into consideration, which helps to filter out unimportant or accidental design elements.
[0049] Next, the FP-Growth algorithm performs a pattern growth operation on the FP tree. It starts from the root node and explores downward along the path to find those frequently occurring subtree structures. The so-called "subtree structure" refers to a local pattern composed of multiple feature nodes, which are repeated in different feature trees. For example, in the design schemes of multiple line bays and main transformer bays, similar protection configurations and wiring methods may be included, which are potential core common features.
[0050] Once the frequently occurring subtree structures are found, the corresponding core features can be extracted from them. These features are considered "common" because they not only appear in a single interval type, but also span multiple types of intervals, showing a certain degree of universality and importance. In this way, it can be ensured that the typical interval template finally generated can cover the widest range of application scenarios while maintaining consistency and standardization of the design.
[0051] In an optional implementation, the loop features of different types of intervals are judged for commonality, specifically including: using a PrefixSpan mining algorithm on the feature trees generated for different types of intervals to identify devices that appear multiple times in the loop features as core loop commonality features.
[0052] In an optional embodiment, a deep learning model BERT using transfer learning technology is used to extract rule features from "General Equipment for Power Transmission and Transformation Projects of State Grid Corporation of China - Secondary Equipment of 110(66)~750kV Intelligent Substations", "Standardized Design Specifications for Line Protection and Auxiliary Devices", "Standardized Design Specifications for Transformers, High-voltage Shunt Reactors and Busbar Protection and Auxiliary Devices", and "Typical Designs for Power Transmission and Transformation Projects of State Grid Corporation of China", and a typical interval template is generated based on the rule features, wherein the template contains interval content entries.
[0053] Finally, the core loop common features and core common features are imported into the interval content entry to obtain a complete typical interval template.
[0054] Specifically, the BERT model reads and analyzes text content from documents such as "General Equipment for Power Transmission and Transformation Projects of State Grid Corporation of China - Secondary Equipment of 110(66)~750kV Intelligent Substations", "Standardized Design Specifications for Line Protection and Auxiliary Devices", "Standardized Design Specifications for Transformers, High-Voltage Shunt Reactors and Busbar Protection and Auxiliary Devices", and "Typical Design of Power Transmission and Transformation Projects of State Grid Corporation of China". These documents contain regulations and standards on equipment configuration, wiring methods, protection configuration, cabinet layout, terminal block design, etc. Through transfer learning, the pre-trained BERT model can quickly adapt to the specific terms and expressions in the field of power engineering, thereby accurately identifying and annotating relevant rule statements. Finally, the extracted core features and core loop common features are integrated together and imported into the interval content entries. These entries form the basic framework of typical interval templates, covering all necessary design elements. In this way, designers can directly use these templates in new projects and only need to add or adjust individual parts according to specific needs. This approach not only improves design efficiency, but also ensures design consistency and standardization, reducing the possibility of human errors.
[0055] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. The protection scope of the present invention should be based on the protection scope of the claims.
Claims
1. A method for generating a typical interval template of a substation, characterized in that: The method comprises the following steps: Collect design proposals for different types of intervals; Extracting features of corresponding type intervals from the design scheme, the extracted features including core features and loop features; The core features and loop features of different types of intervals are judged for commonality, and the core common features and loop common features are separated; A typical interval template is constructed based on the common features of the core and the common features of the loop.
2. A method for generating a typical interval template of a substation according to claim 1, characterized in that: The design schemes for different types of bays include a line bay design scheme, a main transformer bay design scheme, and a bus bay design scheme.
3. A method for generating a typical interval template of a substation according to claim 2, characterized in that: The core features include equipment configuration, wiring method, protection configuration, panel cabinet layout, and terminal strip design. The specific steps of extracting the core features include: extracting rule statements from the substation equipment layout specification text, using the deep learning model BERT of transfer learning technology to semantically annotate the design statements in the design schemes of different types of intervals, and obtaining multiple feature semantic labels of corresponding types, performing K-Means clustering on the multiple feature semantic labels, and summarizing the semantic labels with the same meaning into a feature node, generating a feature tree between the multiple feature nodes, each feature tree corresponding to all the core features of a type of interval, and the feature tree having multiple feature nodes, each of which is associated with a design statement.
4. A method for generating a typical interval template of a substation according to claim 3, characterized in that: The loop features include a current transformer loop, a voltage transformer loop, and a protection loop. The specific steps of extracting the loop features include: Extract IED configuration information, topology relationship and communication interface from SCD files of design schemes of different types of bays; Parse the Inputs node in the SCD file, extract the GOOSE and SV signal connection relationship between IED devices, and generate edges based on the aforementioned connection relationship; Select the starting node of any loop, execute the recognition algorithm from the starting node, traverse all adjacent nodes along the direction of signal flow until the end device is encountered. The set of nodes traversed constitutes the access path, and the edge weights are assigned to the access path. Taking the starting node as the starting point, the edge with the largest weight is selected to form the loop feature.
5. A method for generating a typical interval template of a substation according to claim 4, characterized in that: The core features of different types of intervals are judged for commonality, specifically including: performing FP-Growth mining algorithm on the feature trees generated by different types of intervals, extracting subtree structures that frequently appear in multiple feature trees, and the core features corresponding to the subtree structures are the core common features.
6. A method for generating a typical interval template of a substation according to claim 5, characterized in that: The commonality of loop features of different types of intervals is judged, specifically including: using the PrefixSpan mining algorithm of the feature tree generated by different types of intervals, identifying the devices that appear multiple times in the loop features as the core loop commonality features.
7. A method for generating a typical interval template of a substation according to claim 6, characterized in that: The deep learning model BERT using transfer learning technology extracts rule features from "General Equipment for Power Transmission and Transformation Projects of State Grid Corporation of China - Secondary Equipment of 110(66)~750kV Intelligent Substation", "Standardized Design Specifications for Line Protection and Auxiliary Devices", "Standardized Design Specifications for Transformers, High-voltage Shunt Reactors and Busbar Protection and Auxiliary Devices", and "Typical Designs of Power Transmission and Transformation Projects of State Grid Corporation of China", and generates typical interval templates based on the rule features, which contain interval content entries.
8. A method for generating a typical interval template of a substation according to claim 7, characterized in that: The core loop common features and core common features are introduced into the interval content entry to obtain a complete typical interval template.