CN114221312A - Topological relation-based power distribution network protection rapid setting and checking method - Google Patents
Topological relation-based power distribution network protection rapid setting and checking method Download PDFInfo
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- CN114221312A CN114221312A CN202111652521.1A CN202111652521A CN114221312A CN 114221312 A CN114221312 A CN 114221312A CN 202111652521 A CN202111652521 A CN 202111652521A CN 114221312 A CN114221312 A CN 114221312A
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- 238000004364 calculation method Methods 0.000 claims abstract description 22
- 238000010586 diagram Methods 0.000 claims abstract description 14
- 238000005516 engineering process Methods 0.000 claims abstract description 13
- 238000012986 modification Methods 0.000 claims abstract description 5
- 230000004048 modification Effects 0.000 claims abstract description 5
- 230000002159 abnormal effect Effects 0.000 claims abstract description 4
- 230000002452 interceptive effect Effects 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 3
- 238000007794 visualization technique Methods 0.000 claims description 3
- 238000013523 data management Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/50—Information retrieval; Database structures therefor; File system structures therefor of still image data
- G06F16/51—Indexing; Data structures therefor; Storage structures
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/021—Details concerning the disconnection itself, e.g. at a particular instant, particularly at zero value of current, disconnection in a predetermined order
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
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- Data Mining & Analysis (AREA)
- Databases & Information Systems (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Emergency Protection Circuit Devices (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention provides a method for quickly setting and checking power distribution network protection based on a topological relation, which is characterized by comprising the following steps of: acquiring a single line diagram of the GIS, identifying protection equipment, and generating a simplified diagram of protection configuration in real time; converting the image into characters, outputting structured data and storing the structured data in a database; generating a fixed value by using a topological relation key identified by the GIS graph; then, a device-level compilation constant value single template is carried out, and principle-level data are automatically read after the template compilation is finished; s4: the method comprises the steps of calculating and judging the fixed value position with the problems of improper fixed value matching, cross-class matching, out-of-limit matching and the like through an intelligent association drawing and a topology technology, intelligently finding the abnormal fixed value and pushing a message, realizing accident recurrence and giving modification suggestions. According to the invention, the calculation time for setting the single automatic switch protection is shortened to only 3.5 minutes from the original 17.5 minutes, the distribution network relay protection setting work efficiency is improved to be more than or equal to 400%, the distribution network relay protection setting calculation time is shortened to the limit, and the work efficiency is improved.
Description
Technical Field
The invention relates to the field of power distribution network checking, in particular to a method for quickly setting and checking power distribution network protection based on a topological relation.
Background
At present, 35/10kV distribution network lines are complex in structure and numerous in brand and model of protection equipment, constant value setting needs to be considered, a unified constant value setting standard is lacked, distribution network constant value setting calculation mainly depends on manual calculation, the workload is huge, the distribution network constant value setting calculation is comprehensively adjusted in a collecting and returning mode along with the distribution network setting calculation, the workload of the distribution network constant value setting calculation is increased greatly, the work has the situations of repeatability, errors in calculation results and the like, constant value setting parameter data management, expert rule library management, constant value data management, setting calculation, calculation book generation, constant value list generation, statistical analysis and the like are finished manually, the workload is huge and errors are prone to occurring, and a complete set of software system support is not available. In addition, with the comprehensive collection and local dispatching of distribution network setting calculation, the calculation workload of the ground distribution network setting will increase dramatically, and the requirement of actual work cannot be met in the aspect of improving the overall efficiency of relay protection work.
Disclosure of Invention
The invention aims to provide a method for quickly setting and checking power distribution network protection based on a topological relation, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for quickly setting and checking power distribution network protection based on topological relation is characterized by comprising the following steps:
s1: acquiring a single line diagram of the GIS, identifying protection equipment, and generating a simplified diagram of protection configuration in real time;
s2: the image is converted into the character by means of the image-text recognition technology, the structured data is output and automatically recorded to a background, so that labor can be greatly saved, the efficiency is improved, and the image-text recognition technology is stored in a database;
s3: calculating a structured data setting principle level to generate a fixed value, specifically generating the fixed value for a topological relation identified by a GIS graph by one key; then, a device-level compilation constant value single template is carried out, and principle-level data are automatically read after the template compilation is finished;
s4: the method comprises the steps of calculating and judging the fixed value position with the problems of improper fixed value matching, cross-class matching, out-of-limit matching and the like through an intelligent association drawing and a topology technology, intelligently finding the abnormal fixed value and pushing a message, realizing accident recurrence and giving modification suggestions.
In step S2, specifically, the graphics-text recognition technology is used to report the distribution network OCS, the data interface of the graph-model system, and the device parameters in various formats to obtain the device parameters, the distribution network single line diagram, and the real-time data, so as to provide basic data support for subsequent calculations.
In the step S3, a digitalized visualization method is used to build a standardized expert intelligent configuration rule base to realize the visual interactive configuration of the setting principle formula, so as to meet the requirements of various principle level calculations, and to make a standardized fixed value single template, thereby providing a basic template for the rapid establishment of fixed value single templates of various equipment models.
In step S4, the accident reconstruction is specifically implemented based on a network topology method and dynamic data, and the accident is intelligently analyzed to provide an auxiliary decision.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the calculation time for setting the single automatic switch protection is shortened to only 3.5 minutes from the original 17.5 minutes, the distribution network relay protection setting work efficiency is improved to be more than or equal to 400%, the distribution network relay protection setting calculation time is shortened to the limit, and the work efficiency is improved. Through distribution network intelligent protection setting calculation and fault analysis platform based on full information data flow, distribution network relay protection setting calculation time is effectively shortened, distribution network relay protection setting work efficiency is improved, and human error setting events caused by parameter data errors are further avoided.
Drawings
FIG. 1 is a schematic diagram of a flow framework structure of a power distribution network protection rapid setting and checking method based on a topological relation;
fig. 2 is a schematic diagram of a power distribution network protection rapid setting platform page based on a topological relation.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work based on the embodiments of the present invention belong to the scope of the present invention.
Examples
As shown in FIG. 1, a method for rapidly setting and checking power distribution network protection based on topological relation is characterized by comprising the following steps
S1: acquiring a single line diagram of the GIS, identifying protection equipment, and generating a simplified diagram of protection configuration in real time;
s2: the image is converted into the character by means of the image-text recognition technology, the structured data is output and automatically recorded to a background, so that labor can be greatly saved, the efficiency is improved, and the image-text recognition technology is stored in a database;
s3: calculating a structured data setting principle level to generate a fixed value, specifically generating the fixed value for a topological relation identified by a GIS graph by one key; then, a device-level compilation constant value single template is carried out, and principle-level data are automatically read after the template compilation is finished;
s4: the method comprises the steps of calculating and judging the fixed value position with the problems of improper fixed value matching, cross-class matching, out-of-limit matching and the like through an intelligent association drawing and a topology technology, intelligently finding the abnormal fixed value and pushing a message, realizing accident recurrence and giving modification suggestions.
In step S2, specifically, the graphics-text recognition technology is used to report the distribution network OCS, the data interface of the graph-model system, and the device parameters in various formats to obtain the device parameters, the distribution network single line diagram, and the real-time data, so as to provide basic data support for subsequent calculations.
In the step S3, a digitalized visualization method is used to build a standardized expert intelligent configuration rule base to realize the visual interactive configuration of the setting principle formula, so as to meet the requirements of various principle level calculations, and to make a standardized fixed value single template, thereby providing a basic template for the rapid establishment of fixed value single templates of various equipment models.
In step S4, the accident reconstruction is specifically implemented based on a network topology method and dynamic data, and the accident is intelligently analyzed to provide an auxiliary decision.
As shown in fig. 2, a schematic diagram of a power distribution network protection rapid setting platform page based on a topological relation in this embodiment is shown.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the preferred embodiments of the invention and described in the specification are only preferred embodiments of the invention and are not intended to limit the invention, and that various changes and modifications may be made without departing from the novel spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A method for quickly setting and checking power distribution network protection based on topological relation is characterized by comprising the following steps:
s1: acquiring a single line diagram of the GIS, identifying protection equipment, and generating a simplified diagram of protection configuration in real time;
s2: converting the image into characters by means of image-text recognition technology, outputting structured data and storing the structured data in a database;
s3: calculating a structured data setting principle level to generate a fixed value, specifically generating the fixed value for a topological relation identified by a GIS graph by one key; then, a device-level compilation constant value single template is carried out, and principle-level data are automatically read after the template compilation is finished;
s4: the method comprises the steps of calculating and judging the fixed value position with the problems of improper fixed value matching, cross-class matching, out-of-limit matching and the like through an intelligent association drawing and a topology technology, intelligently finding the abnormal fixed value and pushing a message, realizing accident recurrence and giving modification suggestions.
2. The topological relation-based power distribution network protection rapid setting and checking method according to claim 1, characterized in that: in step S2, specifically, the graphics-text recognition technology is used to report the distribution network OCS, the data interface of the graph-model system, and the device parameters in various formats to obtain the device parameters, the distribution network single line diagram, and the real-time data, so as to provide basic data support for subsequent calculations.
3. The topological relation-based power distribution network protection rapid setting and checking method according to claim 1, characterized in that: in the step S3, a digitalized visualization method is used to build a standardized expert intelligent configuration rule base to realize the visual interactive configuration of the setting principle formula, so as to meet the requirements of various principle level calculations, and to make a standardized fixed value single template, thereby providing a basic template for the rapid establishment of fixed value single templates of various equipment models.
4. The topological relation-based power distribution network protection rapid setting and checking method according to claim 1, characterized in that: in step S4, the accident reconstruction is specifically implemented based on a network topology method and dynamic data, and the accident is intelligently analyzed to provide an auxiliary decision.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114925621A (en) * | 2022-06-23 | 2022-08-19 | 海南电网有限责任公司海口供电局 | Intelligent fixed value checking method |
| CN114971938A (en) * | 2022-06-07 | 2022-08-30 | 上海山源电子科技股份有限公司 | Method and device for detecting override-proof network topology of coal mine power supply system and storage medium |
| CN115021199A (en) * | 2022-06-30 | 2022-09-06 | 海南电网有限责任公司海口供电局 | Fixed value checking and evaluating system for power distribution network |
| CN115207871A (en) * | 2022-08-09 | 2022-10-18 | 广西电网有限责任公司钦州供电局 | Regional power grid protection setting value setting method and system |
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| CN115207871A (en) * | 2022-08-09 | 2022-10-18 | 广西电网有限责任公司钦州供电局 | Regional power grid protection setting value setting method and system |
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