A real-time research and judgment method and system for an automatic switching-on and switching-off strategy of a distribution network line reclosing

Abstract

This application provides a real-time analysis method and system for automatic reclosing activation / deactivation strategies of distribution network lines. This application acquires multi-dimensional analysis data on the reclosing of the target line in real time. The analysis data includes at least one or more of the following: live-line work schedule, hot-swap schedule, and current weather data. Based on the analysis data of different dimensions, different reclosing activation / deactivation strategies are generated and sent to automatic execution equipment or personnel to perform the reclosing activation / deactivation operations. This assists dispatchers in completing some operations, greatly improving dispatching efficiency and freeing up human resources. Furthermore, it can quickly generate reclosing activation / deactivation strategies for special weather conditions to adapt to reclosing in special circumstances. By considering multi-dimensional analysis data, it can also prevent problems such as missed activation, delayed activation, or premature activation, greatly improving safety.

Description

Technical Field

[0001] This application relates to the field of reclosing technology, and in particular to a real-time analysis method and system for automatic reclosing strategy of distribution network lines. Background Technology

[0002] Currently, reclosing operations are required during distribution network maintenance or emergency repairs. With the continuous improvement of distribution network live-line working technology and processes, the proportion of live-line work in distribution network maintenance and emergency repairs has increased unprecedentedly. Distribution network maintenance work is now primarily live-line based, with power outages as a secondary measure, and live-line work is completed whenever possible. In addition, the comprehensive coverage of remote reclosing operations has led to even more frequent daily reclosing operations.

[0003] In existing technologies, reclosing operations are generally performed manually. The standardized process involves the controller issuing a command to the operator, who then performs the operation. Another controller is required as a supervisor. It takes about 3 minutes and 3 people to operate just one reclosing operation.

[0004] Under the current high demand for operations, dispatchers face a significant workload, with reclosing operations requiring substantial manpower and time. Furthermore, in practice, there are instances where multiple lines with the same reclosing requirements exhibit the same issue, making it easy for personnel negligence to lead to premature reclosing and create safety hazards. In addition, during extreme weather events such as thunderstorms and typhoons, a series of reclosing operations are necessary to ensure the safe operation of the power grid. However, the unpredictable nature of these special circumstances means that traditional methods of manually monitoring relevant information, making predictions, and formulating activation / deactivation plans are no longer adequate to meet the needs of power grid development.

[0005] Therefore, a real-time assessment strategy for enabling and disabling reclosing on distribution network lines is needed to adapt to various working environments, generate opinions on enabling and disabling reclosing, and assist dispatchers in completing some reclosing operations. Summary of the Invention

[0006] The purpose of this application is to provide a real-time analysis method and system for the automatic reclosing strategy of distribution network lines, in order to solve the problems of low reclosing efficiency, easy oversight leading to safety issues, and inability to adapt to special circumstances. The specific technical solution is as follows: In the first aspect, a real-time analysis method for automatic reclosing strategy of distribution network lines is provided. The method includes: real-time acquisition of multi-dimensional analysis data of reclosing of the target line, wherein the analysis data includes at least one or more of the following: live-line work plan, hot-swap plan and current meteorological data. Based on the live-line work plan table, determine whether there is a live-line work plan for the target line. If there is, generate a live-line work reclosing activation / deactivation strategy. Based on the hot-swap plan table, determine whether the target line has a hot-swap plan. If it does, generate a hot-swap reclosing activation / deactivation strategy. Based on the current meteorological data, it is determined whether extreme weather exists on the target line. If so, a special weather reclosing activation / deactivation strategy is generated. The extreme weather includes typhoons and rainstorms. The generated reclosing activation and deactivation strategies of different dimensions are sent to automated execution equipment or personnel to perform reclosing activation and deactivation operations.

[0007] Optionally, the real-time acquisition of multi-dimensional reclosing analysis data of the target line includes: Send the target line and its reclosing activation / deactivation commands to the robotic arm; After the robotic arm responds to the reclosing command of the target line, it controls the mouse to click on the display screen of the internal and external network and the Open3000 system to find the multi-dimensional display screen of the reclosing of the target line. Multi-dimensional display images of reclosing are obtained through high-precision cameras or direct acquisition of image data. The reclosing multi-dimensional display screen is processed to obtain reclosing multi-dimensional analysis data.

[0008] Optionally, the method for generating the live-line working reclosing activation / deactivation strategy includes the following steps: Determine whether the target line has the conditions for remote control; If available, a remote control reclosing activation / deactivation strategy will be generated based on the maintenance requirements of the target line. If not, a field reclosing activation / deactivation strategy will be generated based on the maintenance requirements of the target line for on-site operation by maintenance personnel.

[0009] Optionally, the hot-swap reclosing activation / deactivation strategy generation method includes the following steps: Real-time acquisition of the current after the two lines requiring thermal switching are looped together; The current after the loop is closed is compared with a preset current limit. If the preset current limit is exceeded, a reclosing strategy to disconnect the two lines is generated. If the current does not exceed the preset current limit, a hot-swap reclosing activation / deactivation strategy will be generated based on the maintenance requirements and hot-swap requirements of the target line.

[0010] Optionally, the method for generating the special weather reclosing activation / deactivation strategy includes the following steps: A temporary reclosing activation / deactivation strategy is generated based on the severity of weather conditions, and a reclosing deactivation strategy is generated once the weather returns to normal.

[0011] Optionally, sending the generated reclosing activation / deactivation strategies of different dimensions to automated execution equipment or personnel to perform reclosing activation / deactivation operations includes: Determine whether the reclosing activation / deactivation strategy meets the remote control conditions; If the conditions are met, the signal is sent to the automatic execution device to perform the reclosing operation. If it does not meet the requirements, it will be sent to the staff to perform the reclosing operation.

[0012] Optionally, the automated execution device may be a robotic arm.

[0013] Optionally, the method further includes: Set operating permissions for the robotic arm.

[0014] Secondly, this application provides a real-time analysis system for the automatic reclosing and declosing strategy of distribution network lines, the system comprising: The acquisition unit is used to acquire multi-dimensional reclosing analysis data of the target line in real time. The analysis data includes at least one or more of the following: live-line work plan, hot-closing plan, and current meteorological data. The first judgment unit is used to determine whether there is a live-line operation plan for the target line according to the live-line operation plan table. If there is, it generates a live-line operation reclosing activation / deactivation strategy. The second judgment unit is used to determine whether there is a hot-swap plan for the target line according to the hot-swap plan table. If there is, a hot-swap reclosing activation / deactivation strategy is generated. The third judgment unit is used to determine whether there is extreme weather on the target line based on the current meteorological data. If there is, it generates a special weather reclosing activation / deactivation strategy. The extreme weather includes typhoons and rainstorms. The sending unit is used to send the generated reclosing activation and deactivation strategies of different dimensions to the automatic execution equipment or personnel to perform the reclosing activation and deactivation operations.

[0015] Beneficial effects of the embodiments in this application: This application provides a real-time analysis method and system for automatic reclosing activation / deactivation strategies of distribution network lines. This application acquires multi-dimensional analysis data of the target line's reclosing in real time. The analysis data includes at least one or more of the following: a live-line work plan, a hot-swap plan, and current weather data. Based on the live-line work plan, it determines whether a live-line work plan exists for the target line; if so, a live-line work reclosing activation / deactivation strategy is generated. Based on the hot-swap plan, it determines whether a hot-swap plan exists for the target line; if so, a hot-swap reclosing activation / deactivation strategy is generated. Based on the current weather data, it determines whether extreme weather occurs for the target line; if so, a special weather reclosing activation / deactivation strategy is generated. Extreme weather includes typhoons and heavy rain. The generated reclosing activation / deactivation strategies of different dimensions are sent to automatic execution equipment or personnel to perform the reclosing activation / deactivation operations. It enables dispatchers to complete some operations, greatly improving dispatching efficiency and freeing up human resources. It can also quickly generate reclosing activation and deactivation strategies for special weather conditions to adapt to reclosing in special situations. Through multi-dimensional data analysis, it can also prevent problems such as missed activation, delayed activation, or premature activation, greatly improving safety.

[0016] Of course, implementing any product or method of this application does not necessarily require achieving all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A flowchart illustrating a real-time analysis method for an automatic reclosing strategy of a distribution network line provided in this application embodiment; Figure 2 This is a schematic diagram of the structure of a real-time analysis system for automatic reclosing strategy of distribution network lines provided in an embodiment of this application. Detailed Implementation

[0019] 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.

[0020] This application provides a real-time analysis method for the automatic reclosing and deregulation strategy of distribution network lines. The following detailed description, in conjunction with specific implementation methods, will illustrate this real-time analysis method for the automatic reclosing and deregulation strategy of distribution network lines. Figure 1 As shown, the specific steps are as follows: Step S101: Real-time acquisition of multi-dimensional reclosing analysis data for the target line. This analysis data includes at least one or more of the following: live-line work plan, hot-swap plan, and current weather data. A basic database is formed by collecting live-line work plans, hot-swap plans, and the day's weather conditions, which can be retrieved at any time for later analysis.

[0021] Optionally, the real-time acquisition of multi-dimensional reclosing analysis data of the target line includes: Send the target line and its reclosing activation / deactivation commands to the robotic arm.

[0022] In this step, the target line that needs to be reclosed is first determined. Based on the maintenance or emergency repair needs of the target line, a reclosing command is generated. The target line and its reclosing command are then sent to the robot arm so that the robot arm can perform the following operations.

[0023] After the robotic arm responds to the reclosing command of the target line, it controls the mouse to click on the display screen of the internal and external networks and the Open3000 system to find the multi-dimensional display screen of the reclosing of the target line.

[0024] A distributed processor controls a robotic arm, which in turn controls a mouse to switch between internal and external networks and the Open3000 system to find different multi-dimensional reclosing displays, such as live-line work schedules, hot-swap schedules, and current weather data. These multi-dimensional reclosing displays are acquired via high-precision cameras or direct image data acquisition.

[0025] The reclosing multi-dimensional display screen is processed to obtain reclosing multi-dimensional analysis data.

[0026] In this step, image processing can use image recognition technology to identify data in the displayed image to obtain multi-dimensional textual analysis data.

[0027] The above method can automatically extract relevant data for reclosing activation / deactivation analysis. This replaces the previous method where dispatchers had to manually consult multiple sources of information, such as remote reclosing activation / deactivation tables, live-line work plans, any related hot work, and current weather conditions. It quickly completes the extraction of multi-dimensional analysis data.

[0028] To address the reclosing operation requirements under different operating conditions, corresponding judgments are made, and responses are given to different results to ensure the safe operation of the power grid under various conditions. Specifically: Step S102: Determine whether there is a live-line work plan for the target line according to the live-line work plan table. If there is, generate a live-line work reclosing activation / deactivation strategy.

[0029] Optionally, the method for generating the live-line working reclosing activation / deactivation strategy includes the following steps: Determine whether the target line has the conditions for remote control; If available, a remote control reclosing activation / deactivation strategy will be generated based on the maintenance requirements of the target line. If not, a field reclosing activation / deactivation strategy will be generated based on the maintenance requirements of the target line for on-site operation by maintenance personnel.

[0030] Step S103: Determine whether the target line has a hot-swap plan based on the hot-swap plan table. If it does, generate a hot-swap reclosing activation / deactivation strategy.

[0031] Optionally, the hot-swap reclosing activation / deactivation strategy generation method includes the following steps: Real-time acquisition of the current after the two lines requiring thermal switching are looped together; The current after the loop is closed is compared with a preset current limit. If the preset current limit is exceeded, a reclosing strategy to disconnect the two lines is generated. If the current does not exceed the preset current limit, a hot-swap reclosing activation / deactivation strategy is generated based on the maintenance requirements and hot-swap requirements of the target line. This hot-swap reclosing activation / deactivation strategy can be remotely controlled.

[0032] Step S104: Determine whether there is extreme weather on the target line based on the current meteorological data. If so, generate a special weather reclosing activation / deactivation strategy. The extreme weather includes typhoons, rainstorms, etc.

[0033] Optionally, the method for generating the special weather reclosing activation / deactivation strategy includes the following steps: A temporary reclosing activation / deactivation strategy is generated based on the severity of weather conditions, and a reclosing deactivation strategy is generated once the weather returns to normal.

[0034] By comprehensively analyzing reclosing data from multiple dimensions, reclosing activation and deactivation strategies are derived for different dimensions, providing dispatchers with references for reclosing activation and deactivation. This can significantly reduce the workload of dispatchers and alleviate the burden on frontline staff.

[0035] Step S105: Send the generated reclosing activation / deactivation strategies of different dimensions to the automatic execution equipment or personnel to perform the reclosing activation / deactivation operation.

[0036] Optionally, sending the generated reclosing activation / deactivation strategies of different dimensions to automated execution equipment or personnel to perform reclosing activation / deactivation operations includes: Determine whether the reclosing activation / deactivation strategy meets the remote control conditions; If the conditions are met, the signal is sent to the automatic execution device to perform the reclosing operation. If it does not meet the requirements, it will be sent to the staff to perform the reclosing operation.

[0037] For example, the remote control reclosing activation / deactivation strategy generated based on the energized plan can be sent to the automatic execution equipment, and the on-site reclosing activation / deactivation strategy generated based on the energized plan can be sent to the staff to perform on-site reclosing operations.

[0038] By implementing the above steps, a strategy for automatic reclosing and declosing of distribution network lines can be realized, which is specifically designed for power grid dispatchers. This strategy can assist dispatchers in completing some operations, greatly improve dispatching efficiency, and free up human resources.

[0039] In this embodiment of the application, the execution subject of steps S101-S105 can be a distributed processor, which is composed of high-performance computers. If necessary, more computers can be added to run in parallel to improve computing power.

[0040] Optionally, the automated execution device may be a robotic arm.

[0041] Optionally, the method further includes: Set operating permissions for the robotic arm to ensure that its operations within internal and external networks, as well as systems such as Open3000, do not exceed their limits.

[0042] Secondly, this application provides a real-time analysis system for the automatic reclosing and declosing strategy of distribution network lines, such as... Figure 2 As shown, the system includes: The acquisition unit 201 is used to acquire multi-dimensional reclosing analysis data of the target line in real time. The analysis data includes at least one or more of the following: live-line work plan, hot-closing plan, and current meteorological data. The first judgment unit 202 is used to determine whether there is a live-line operation plan for the target line according to the live-line operation plan table. If there is, a live-line operation reclosing activation / deactivation strategy is generated. The second judgment unit 203 is used to determine whether there is a hot-swap plan for the target line according to the hot-swap plan table. If there is, a hot-swap reclosing activation / deactivation strategy is generated. The third judgment unit 204 is used to determine whether there is extreme weather on the target line based on the current meteorological data. If there is, it generates a special weather reclosing activation / deactivation strategy. The extreme weather includes typhoons and rainstorms. The sending unit 205 is used to send the generated reclosing activation and deactivation strategies of different dimensions to the automatic execution equipment or personnel to perform the reclosing activation and deactivation operations.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A real-time analysis method for automatic reclosing and declosing strategies in distribution network lines, characterized in that, The method includes: Real-time acquisition of multi-dimensional reclosing analysis data for the target line, wherein the analysis data includes at least one or more of the following: live-line work plan, hot-swap plan, and current meteorological data; Based on the live-line work plan table, determine whether there is a live-line work plan for the target line. If there is, generate a live-line work reclosing activation / deactivation strategy. Based on the hot-swap plan table, determine whether the target line has a hot-swap plan. If it does, generate a hot-swap reclosing activation / deactivation strategy. Based on the current meteorological data, it is determined whether extreme weather exists on the target line. If so, a special weather reclosing activation / deactivation strategy is generated. The extreme weather includes typhoons and rainstorms. The generated reclosing activation and deactivation strategies of different dimensions are sent to automated execution equipment or personnel to perform reclosing activation and deactivation operations; The method for generating the live-line working reclosing activation / deactivation strategy includes the following steps: Determine whether the target line has the conditions for remote control; If available, a remote control reclosing activation / deactivation strategy will be generated based on the maintenance requirements of the target line. If not, a field reclosing activation / deactivation strategy will be generated based on the maintenance requirements of the target line for on-site operation by maintenance personnel. The hot-switch reclosing activation / deactivation strategy generation method includes the following steps: Real-time acquisition of the current after the two lines requiring thermal switching are looped together; The current after the loop is closed is compared with a preset current limit. If the preset current limit is exceeded, a reclosing strategy to disconnect the two lines is generated. If the current does not exceed the preset current limit, a hot-swap reclosing activation / deactivation strategy is generated based on the maintenance requirements and hot-swap requirements of the target line. The method for generating special weather-specific reclosing activation / deactivation strategies includes the following steps: A temporary reclosing activation / deactivation strategy is generated based on the severity of weather conditions, and a reclosing deactivation strategy is generated once the weather returns to normal.

2. The method according to claim 1, characterized in that, The real-time acquisition of multi-dimensional reclosing analysis data for the target line includes: Send the target line and its reclosing activation / deactivation commands to the robotic arm; After the robotic arm responds to the reclosing command of the target line, it controls the mouse to click on the display screen of the internal and external network and the Open3000 system to find the multi-dimensional display screen of the reclosing of the target line. Multi-dimensional display images of reclosing are obtained through high-precision cameras or direct acquisition of image data. The reclosing multi-dimensional display screen is processed to obtain reclosing multi-dimensional analysis data.

3. The method according to claim 1, characterized in that, The step of sending the generated reclosing activation / deactivation strategies of different dimensions to automated execution equipment or personnel to perform reclosing activation / deactivation operations includes: Determine whether the reclosing activation / deactivation strategy meets the remote control conditions; If the conditions are met, the signal is sent to the automatic execution device to perform the reclosing operation. If it does not meet the requirements, it will be sent to the staff to perform the reclosing operation.

4. The method according to claim 3, characterized in that, The automated execution device is a robotic arm.

5. The method according to claim 2 or 4, characterized in that, The method further includes: Set operating permissions for the robotic arm.

6. A real-time analysis system for automatic reclosing and declosing strategies of distribution network lines, applicable to the method described in any one of claims 1 to 5, characterized in that, The system includes: The acquisition unit is used to acquire multi-dimensional reclosing analysis data of the target line in real time. The analysis data includes at least one or more of the following: live-line work plan, hot-closing plan, and current meteorological data. The first judgment unit is used to determine whether there is a live-line operation plan for the target line according to the live-line operation plan table. If there is, it generates a live-line operation reclosing activation / deactivation strategy. The second judgment unit is used to determine whether there is a hot-swap plan for the target line according to the hot-swap plan table. If there is, a hot-swap reclosing activation / deactivation strategy is generated. The third judgment unit is used to determine whether there is extreme weather on the target line based on the current meteorological data. If there is, it generates a special weather reclosing activation / deactivation strategy. The extreme weather includes typhoons and rainstorms. The sending unit is used to send the generated reclosing activation and deactivation strategies of different dimensions to the automatic execution equipment or personnel to perform the reclosing activation and deactivation operations.

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