Operation mode list automatic generation method based on real-time operation condition of power grid

Abstract

The invention discloses an operation mode list automatic generation method based on power grid real-time operation conditions, relates to the technical field of power grid real-time information processing, and solves the problems that in the prior art, information of recorded power grid operation modes is lagged and inaccurate, a large amount of time needs to be spent for re-checking, and the working efficiency is high. And the method is extremely unfavorable for dispatching and processing faults. The method comprises the following steps: firstly, creating a database for storing line information and the like, and establishing SVG, XML and equipment center classes; updating a corresponding database table based on information such as line open loop points; and finally, based on the latest database, automatically matching the operation mode of the distribution network according to the distribution network line information, and generating a whole network distribution network operation mode Excel file. Through the above steps, the digital transformation of the power grid operation mode from manual maintenance to deep data mining and data analysis and integration is realized, a lot of time for manual re-checking is not needed any more, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of real-time information processing of power grids, and in particular to a method for automatically generating an operation mode list based on the real-time operation status of a power grid. Background Art

[0002] The grid dispatcher on duty needs to master the real-time operation mode of the grid. When a grid equipment fault occurs and trips, he should be able to accurately grasp the basic information such as the fault impact range, power outage area, and accident event level according to the operation mode, and quickly give the handling principles and response strategies based on the information, and report the information in time. However, with the increasing complexity of the grid architecture, combined with the access of new energy sources on the power supply side and the growing demand for electricity consumption on the load side, the operation mode of the grid needs to be changed frequently to ensure the safe and stable operation of the grid.

[0003] At present, the operation mode before and after the power grid is changed is manually updated in fixed records by the on-duty dispatcher or the operation mode specialist. Therefore, the power grid operation mode in the record is lagging and inaccurate, and it often takes a lot of time to recheck, which is extremely unfavorable for dispatching and handling faults, and is prone to misjudgment and misoperation of accidents, affecting the safety of people and power grid equipment. According to the current situation, the project research of "Automatically Generate Operation Mode Sheet Based on Real-time Power Grid Operation Situation" is proposed, using the Southern Power Grid GIS (geographic information map) system and the OCS system (dispatching operation control system) to interact with the model information, based on the construction characteristics of the distribution network line "ring network construction, open-loop operation", the power supply path and open-loop point of the distribution network line are identified in real time, assisting the on-duty dispatcher and the mode specialist to implement the power grid decision, and grasp the changing power grid operation mode in real time.

[0004] In view of this, the present invention provides a method for automatically generating an operation mode list based on the real-time operation status of a power grid. Summary of the invention

[0005] In view of the problem that the power grid operation mode recorded in the prior art has information lag and inaccuracy, and often requires a lot of time to recheck, which is extremely unfavorable for dispatching and handling faults, the present invention provides a method for automatically generating an operation mode list based on the real-time operation of the power grid, which can use the Southern Power Grid GIS (geographic information map) system and the OCS system (dispatching operation control system) to interact with the model information, and based on the construction characteristics of the distribution network line "ring network construction, open-loop operation", it can identify the power supply path and open-loop point of the distribution network line in real time, assist the on-duty dispatcher and the mode specialist to execute the power grid decision, and grasp the changing power grid operation mode in real time. The specific technical scheme is as follows:

[0006] A method for automatically generating an operation mode list based on the real-time operation status of a power grid comprises the following steps:

[0007] Create a database to store information about each component in each line of the distribution network, the latest operating mode, open-loop information, etc.;

[0008] Create an SVG class and an XML class to find component information, including component connection information, component location information, component endpoint information, etc.;

[0009] Create a device center class, log in to the device center, back up old SVG and XML files, download the SVG and XML files of the lines that need to be updated and save them to the specified directory.

[0010] Each time the dispatching and operation control system (OCS) runs, it downloads the list of open-loop points in the distribution network in the network area, obtains the latest open-loop information of the power grid, compares the downloaded open-loop information with the open-loop information in the database, and determines whether there is an update. If there is an update, it uses the device center class to download the SVG file and XML file and update the corresponding database table;

[0011] Based on the latest database, using SVG and XML classes, the operation mode of each line in the distribution network is obtained according to the open-loop point information, and finally an Excel file of the operation mode of the entire distribution network is generated.

[0012] Preferably, when logging into the device center, the SVG and XML files to be downloaded are selected and downloaded to a designated directory, and the old SVG and XML files of the corresponding feeder are backed up.

[0013] Preferably, the database is used to store information of each component in the line xml, and tables are created according to the classification of the xml components, with the attributes of the components as the domain, and the attributes include plant name, feeder name, ID number, coordinates, and endpoints.

[0014] Preferably, when logging into the device center for the first time to read the XML and SVG files of all feeders in the network area, the XML and SVG files of all feeders in the network area are manually read, and the XML and SVG files of the existing distribution network lines are parsed and the data is stored in the database.

[0015] Preferably, when downloading the list of open-loop points of the network distribution network in the dispatching and operation control system for the first time, after the download is completed, the open-loop information is stored in a database.

[0016] Preferably, the established SVG class can search for component information according to the file name and return the coordinate information of all power supplies of the feeder.

[0017] Preferably, the established XML class can search for component information based on the file name, store the components in the component table corresponding to the database, traverse the entire XML based on the connection relationship of the components, return the end components of all open-loop points based on the information of the open-loop points, and return the connecting wires, switches, knife switches, and links that can be connected to the power supply based on actual conditions.

[0018] Preferably, the following steps are also included: based on the summarized open-loop point information, for the first run, all files of the open-loop points are processed one by one, and for non-first run, only updated files are processed, the SVG file is read using the SVG class to obtain all power supply coordinate information, and then the terminal components of all open-loop points are found using the XML class: if there is only one open-loop point, all power supplies belong to the power supply of this open-loop point; for multiple open-loop points, it is determined whether the corresponding terminal component coordinates are close to the power supply coordinates, and if they are close, they are the connecting lines of the open-loop point.

[0019] A computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the method for automatically generating an operation mode list based on the real-time operation status of a power grid as described above.

[0020] A processor is used to run a program, wherein when the program is run, the method for automatically generating an operation mode list based on the real-time operation status of a power grid as described above is executed.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention first creates a database for storing line information, open-loop information, power supply information, etc., establishes an SVG class and an XML class for searching for component information, and establishes a device center class for downloading SVG and XML files that need to be updated; then, each time the WEB of the dispatching operation control system (OCS) is run, a list of open-loop points of the network area distribution network is downloaded to obtain the latest open-loop information of the power grid, the downloaded open-loop information is compared with the open-loop information in the database, and it is determined whether there is an update. If there is an update, the device center class is used to download the SVG file and the XML file to update the corresponding database table; based on the latest database, the SVG class and the XML class are used to obtain the operation mode of each line of the distribution network according to the open-loop point information, and finally an Excel file of the operation mode of the entire network distribution network is generated. Through the above steps, the present invention realizes the digital transformation of the power grid operation mode from manual maintenance to deep data mining and data analysis and integration, completely changes the traditional mode of on-duty dispatchers and mode specialists manually recording the operation mode, conforms to the development trend of the data era, and solves the problem of lagging and inaccurate power grid operation mode after the change. It no longer needs to spend a lot of time on manual rechecking, and improves the work efficiency of intensive personnel under the optimized situation of human resource allocation after the intensive operation of the Southern Power Grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0024] Figure 1 is a flow chart of the method of the present invention;

[0025] Figure 2 This is a schematic diagram of the open-loop point report of the OCS system (dispatching operation control system) Zone III web version;

[0026] Figure 3 This is a diagram showing the final results of the present invention. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0029] It should also be understood that the terms used in the present specification are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the present specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0030] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0031] Combine the following Figure 1-Figure 3 , further illustrating the implementation mode of the present invention.

[0032] In one embodiment of the present invention, a method for automatically generating an operation mode list based on the real-time operation status of a power grid is provided, comprising the following steps:

[0033] Step 1: Create a database to store line information, open-loop information, power supply information, etc.

[0034] Step 2: Create an SVG class and an XML class to find component information, including component connection information, component location information, component endpoint information, etc.

[0035] Step 3: Create a device center class, log in to the device center, back up the old SVG and XML files, download the SVG and XML files of the lines that need to be updated and save them to the specified directory;

[0036] Step 4: Each time the dispatching operation control system (OCS) is run, the list of open-loop points in the distribution network in the network area is downloaded from the WEB to obtain the latest open-loop information of the power grid, and the downloaded open-loop information is compared with the open-loop information in the database to determine whether there is an update. If there is an update, the device center class is used to download the SVG file and XML file to update the corresponding database table;

[0037] Step 5: Based on the latest database, use the SVG class and XML class to obtain the operation mode of each line in the distribution network according to the open-loop point information, and finally generate an Excel file of the operation mode of the entire distribution network.

[0038] The above five steps can be broken down into the following points:

[0039] 1. Create a database to store the information of each component in the line XML. Create tables according to the classification of XML components, with component attributes such as plant station name, feeder name, ID number, coordinates, endpoints, etc. as fields.

[0040] 2. Manually read the XML and SVG files of all feeders in the network area for the first time and store them in the database.

[0041] 3. Each operation requires downloading the list of open-loop points in the network area distribution network from the web version of the OCS system (dispatching operation control system) Zone III. The first download will store the open-loop information in the database. Each operation will compare the downloaded open-loop information with the open-loop information in the database to determine whether there is an update.

[0042] 4. Each operation needs to check whether there are updated feeders.

[0043] 5. If there are new open loop points or updated feeders, download the SVG and XML files from the device center class and update the corresponding database tables.

[0044] 6. The device center class mainly completes the login of the device center, selects the SVG and XML files to be downloaded, downloads them to the specified directory, and backs up the old SVG and XML files of the corresponding feeder.

[0045] 7. According to the open-loop information table, check a certain open-loop point in the database and find the endpoints of the open-loop point. If both endpoints are in the XML of this feeder, then this open-loop point only belongs to this feeder. Otherwise, this open-loop information also belongs to the open-loop point of the feeder that contains another endpoint. All open-loop points are summarized to find the power supply method.

[0046] 8. Create an SVG class that can search for component information based on the file name and return the coordinate information of all power supplies in this feeder.

[0047] 9. Establish an XML class. According to the file name, the class can search for component information and store the components in the corresponding component table in the database. According to the connection relationship of the components, the entire XML can be traversed. According to the information of the open-loop points, the end components of all open-loop points can be returned. According to the actual situation, the connecting wires, switches, knife switches, linkers and other components that can be connected to the power supply can be returned.

[0048] 10. Based on the aggregated open-loop point information, for the first run, all files of the open-loop points are processed one by one, while for non-first run, only updated files are processed. The SVG file is read using the SVG class to obtain all power supply coordinate information, and then the XML class is used to find the terminal components of all open-loop points:

[0049] (1) If there is only one open-loop point, all power supplies belong to the power supply of this open-loop point.

[0050] (2) For multiple open-loop points, it is determined whether the corresponding end component coordinates are close to the power supply coordinates. If they are close, they are the connecting lines of the open-loop points.

[0051] 11. For all the contact lines of the open-loop points found for the first time, store them in the database power table, otherwise update the database.

[0052] 12. Read the database power table and generate an EXCEL file of the entire network distribution network operation mode.

[0053] In summary, the present invention first creates a database for storing line information, open-loop information, power supply information, etc., establishes an SVG class and an XML class for searching for component information, and establishes a device center class for downloading SVG and XML files that need to be updated; then, each time the WEB of the dispatching operation control system (OCS) is run, a list of open-loop points of the network distribution network in the network area is downloaded to obtain the latest open-loop information of the power grid, and the downloaded open-loop information is compared with the open-loop information in the database to determine whether there is an update. If there is an update, the device center class is used to download the SVG file and the XML file to update the corresponding database table; based on the latest database, the SVG class and the XML class are used to obtain the operation mode of each line of the distribution network according to the open-loop point information, and finally an Excel file of the operation mode of the entire network distribution network is generated. Through the above steps, the present invention realizes the digital transformation of the power grid operation mode from manual maintenance to deep data mining and data analysis and integration, completely changes the traditional mode of on-duty dispatchers and mode specialists manually recording the operation mode, conforms to the development trend of the data era, and solves the problem of lagging and inaccurate power grid operation mode after the change. It no longer needs to spend a lot of time on manual rechecking, and improves the work efficiency of intensive personnel under the optimized situation of human resource allocation after the intensive operation of the Southern Power Grid.

[0054] Those of ordinary skill in the art will appreciate that the units of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition of each example has been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0055] In the embodiments provided by the present invention, it should be understood that the division of units is only a logical function division, and there may be other division methods in actual implementation, for example, multiple units can be combined into one unit, one unit can be split into multiple units, or some features can be ignored, etc.

[0056] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0057] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-0nlyMemory), random access memory (RAM, RandomAccessMemory), mobile hard disk, magnetic disk or optical disk, etc., which can store program code.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A method for automatically generating an operation mode list based on the real-time operation status of a power grid, characterized in that: The following steps are involved: Create a database to store information about each component in each line of the distribution network, the latest operating mode, open-loop information, etc.; Create an SVG class and an XML class to find component information, including component connection information, component location information, component endpoint information, etc.; Create a device center class, log in to the device center, back up old SVG and XML files, download the SVG and XML files of the lines that need to be updated and save them to the specified directory; Each time the dispatching and operation control system (OCS) runs, it downloads the list of open-loop points in the distribution network in the network area, obtains the latest open-loop information of the power grid, compares the downloaded open-loop information with the open-loop information in the database, and determines whether there is an update. If there is an update, it uses the device center class to download the SVG file and XML file and update the corresponding database table; Based on the latest database, using SVG and XML classes, the operation mode of each line in the distribution network is obtained according to the open-loop point information, and finally an Excel file of the operation mode of the entire distribution network is generated.

2. The method for automatically generating an operation mode list based on the real-time operation status of a power grid according to claim 1, characterized in that: The device center class logs into the device center, selects the SVG and XML files to be downloaded and downloads them to the specified directory, and backs up the old SVG and XML files of the corresponding feeder.

3. The method for automatically generating an operation mode list based on the real-time operation status of a power grid according to claim 2, characterized in that: The database is used to store the information of each component in the line xml. Tables are created according to the classification of the xml components, with the attributes of the components as the domain. The attributes include plant station name, feeder name, ID number, coordinates, and endpoints.

4. The method for automatically generating an operation mode list based on the real-time operation status of a power grid according to claim 1, characterized in that: When you log in to the device center for the first time to read the XML and SVG files of all feeders in the network area, you will manually read the XML and SVG files of all feeders in the network area, parse the existing distribution network line XML and SVG files, and store the data in the database.

5. The method for automatically generating an operation mode list based on the real-time operation status of a power grid according to claim 1, characterized in that: When downloading the list of open-loop points of the network distribution network to the dispatching and operation control system for the first time, the open-loop information will be stored in the database after the download is completed.

6. The method for automatically generating an operation mode list based on the real-time operation status of a power grid according to claim 1, characterized in that: The established SVG class can search for component information based on the file name and return the coordinate information of all power supplies in this feeder.

7. The method for automatically generating an operation mode list based on the real-time operation status of a power grid according to claim 1, characterized in that: The established XML class can search for component information based on the file name, store the components in the corresponding component table in the database, and traverse the entire XML based on the connection relationship of the components. Based on the information of the open-loop points, it can return the end components of all open-loop points. Based on the actual situation, it can return the connecting wires, switches, knife switches, and links that can be connected to the power supply.

8. The method for automatically generating an operation mode list based on the real-time operation status of a power grid according to claim 1, characterized in that: The following steps are also included: According to the summarized open-loop point information, for the first run, all the files of the open-loop points are processed one by one, while for non-first run, only the updated files are processed, and the SVG file is read using the SVG class to obtain the coordinate information of all power supplies, and then the XML class is used to find the terminal components of all open-loop points: if there is only one open-loop point, all power supplies belong to the power supply of this open-loop point; for multiple open-loop points, it is determined whether the coordinates of the corresponding terminal components are close to the power supply coordinates, and if they are close, they are the connecting lines of the open-loop point.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein when the program is running, the device where the computer-readable storage medium is located is controlled to execute the method for automatically generating an operation mode list based on the real-time operation status of the power grid as described in any one of claims 1 to 8.

10. A processor, characterized in that: The processor is used to run a program, wherein when the program is run, the method for automatically generating an operation mode list based on the real-time operation status of the power grid as described in any one of claims 1 to 8 is executed.

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