CN110417118B - Setting calculation method for automatically generating fixed value switch fixed value diagram of distribution network line - Google Patents
Setting calculation method for automatically generating fixed value switch fixed value diagram of distribution network line Download PDFInfo
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- CN110417118B CN110417118B CN201910499060.5A CN201910499060A CN110417118B CN 110417118 B CN110417118 B CN 110417118B CN 201910499060 A CN201910499060 A CN 201910499060A CN 110417118 B CN110417118 B CN 110417118B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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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
- H02H3/006—Calibration or setting of parameters
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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
- Y04S10/40—Display of information, e.g. of data or controls
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention relates to the technical field of power grids, in particular to a setting calculation method for automatically generating a distribution network line fixed value switch fixed value diagram; by generating an intuitive graph of the protection constant values, the detail of the protection constant values on the current distribution line can be clearly known, and related personnel can conveniently and quickly troubleshoot and position problems; the automatic mapping steps by the crotch inversion detection method are as follows: firstly, before automatic mapping, accurately dividing the current distribution line in a segmentation, layering and classification manner; the method has the advantages of improving the calculation efficiency of the protection constant value and improving the management level of the running state of the power grid, thereby ensuring the safe and stable running of the power system.
Description
Technical Field
The invention relates to the technical field of power grids, in particular to a setting calculation method for automatically generating a distribution network line fixed value switch fixed value diagram.
Background
At present, the problems of large workload, low calculation accuracy, low calculation efficiency, non-intuition and the like of manual intervention exist in the 10kV distribution network protection constant value setting work, if relay protection constant value adjustment occurs, related personnel need to return to an office place to calculate the protection constant value again, and the efficiency, the accuracy and the like cannot be completely guaranteed. According to the project, by carrying out deep investigation and research on distribution network intelligent protection constant value calculation and constant value management, a complete solution of an intelligent protection constant value direct view is realized, and disorder caused by relay protection setting errors is reduced.
Through the research of the patent of the invention, the setting calculation method for automatically generating the distribution network line fixed value switch fixed value diagram is provided, so that the calculation efficiency of the protection fixed value is improved, and the stable operation level of a power grid is improved.
Disclosure of Invention
The embodiment of the invention aims to provide a setting calculation method for automatically generating a distribution network line fixed value switch fixed value diagram, which can improve the calculation efficiency of protection fixed values and ensure the safe and stable operation of a power system.
In order to achieve the above object, an embodiment of the present invention provides a setting calculation method for automatically generating a distribution network line fixed value switch fixed value diagram, which can clearly understand the detail of the protection fixed value on the current distribution line by generating an intuitive diagram of the protection fixed value, and can facilitate related personnel to quickly and conveniently troubleshoot and position problems; the automatic mapping steps by the crotch inversion detection method are as follows: firstly, before automatic mapping, accurately dividing the current distribution line in a segmentation, layering and classification manner;
a step of segmentation division: determining the power supply range of the current line according to the difference of the power supply modes on the distribution line and the difference of the states of the interconnection switches;
a hierarchical division step: dividing a trunk line, a branch line and a trunk tower to which branches belong according to the topological connection relation and the belonging relation among the devices on the distribution line; each branch can be sequenced according to the number of the main pole tower to which the branch belongs;
classifying: acquiring the constant value condition of a distribution network line switch on an intelligent constant value diagram, and dividing the distribution network line switch into a voltage type switch and a current type switch according to the physical properties of the switches;
the crotch inversion detection drawing is to divide the paper space into tree structures of different levels, equally divide the space in a known range into a plurality of equal subspaces, and each subspace stores the labeling information of each tree node and node; the independent subspace structure is simple, and when the spatial data objects are distributed uniformly, the spatial data insertion and query efficiency is high, so that the subspace objects are stored on all tree nodes, and the tree nodes can be stored in a sequence of a main trunk before a branch;
when drawing a branch node, classifying each branch, sequentially distributing the branch on a main line for measurement and arranging rules, namely when a current node on the branch is drawn, determining the main line coordinate of the branch, and then performing collision check when the current node is drawn; when the number of the object units is too large, the cost for finding two possible colliding objects needs to be reduced by one method; therefore, the drawing is divided into spaces, each node only needs to carry out collision check on the current position, and if the node exists, the node can carry out 8-direction rotation detection collision around the current coordinate until the check is successful;
therefore, the branch reverse exploration surveying and mapping method can be used for dividing the distribution lines by combining the description, and the trunk drawing and the branch drawing of the distribution line can be realized when the lines are drawn.
Preferably, the method further comprises:
fixedly drawing the length of a pixel occupied by each switch and connecting lines on two sides of each switch;
setting a distribution line drawing direction and a margin distance;
starting to draw various switches on a trunk of the line, and sequencing and drawing the drawing sequence of the switches according to the numbers of towers to which the switches belong;
the main branches are sorted according to the numbers of the main towers to which the main branches belong;
and drawing each branch line according to the tower reverse description, wherein each time one branch switch is drawn, the collision check is carried out on the drawn branch switch.
The invention also provides computer equipment which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the setting calculation method for automatically generating the distribution network line fixed value switch fixed value graph is realized when the processor executes the program.
The invention also proposes a computer-readable storage medium on which a computer program is stored, which program, when executed by a processor, implements the above-mentioned setting calculation method for automatically generating a distribution network line fixed value switch fixed value map.
The method has the advantages that the setting calculation method for automatically generating the distribution network line fixed value switch fixed value graph can improve the calculation efficiency of the protection fixed value and the management level of the power grid running state, so that the safe and stable running of the power system is guaranteed.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic diagram of a rotation detection collision according to a setting calculation method for automatically generating a distribution network line fixed value switch fixed value diagram provided by the invention;
fig. 2 is a schematic diagram of the final effect of the setting calculation method for automatically generating the distribution network line fixed value switch fixed value diagram provided by the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a setting calculation method for automatically generating a distribution network line fixed value switch fixed value diagram, which can clearly know the detail of the protection fixed value on the current distribution line by generating an intuitive diagram of the protection fixed value, and can facilitate the quick and convenient troubleshooting and positioning of relevant personnel on the problem; the automatic mapping steps by the crotch inversion detection method are as follows: firstly, before automatic mapping, accurately dividing the current distribution line in a segmentation, layering and classification manner;
a step of segmentation division: determining the power supply range of the current line according to the difference of the power supply modes on the distribution line and the difference of the states of the interconnection switches;
a hierarchical division step: dividing a trunk line, a branch line and a trunk tower to which branches belong according to the topological connection relation and the belonging relation among the devices on the distribution line; each branch can be sequenced according to the number of the main pole tower to which the branch belongs;
classifying: acquiring the constant value condition of a distribution network line switch on an intelligent constant value diagram, and dividing the distribution network line switch into a voltage type switch and a current type switch according to the physical properties of the switches;
the crotch inversion detection drawing is to divide the paper space into tree structures of different levels, equally divide the space in a known range into a plurality of equal subspaces, and each subspace stores the labeling information of each tree node and node; the independent subspace structure is simple, and when the spatial data objects are distributed uniformly, the spatial data insertion and query efficiency is high, so that the subspace objects are stored on all tree nodes, and the tree nodes can be stored in a sequence of a main trunk before a branch;
when drawing a branch node, classifying each branch, sequentially distributing the branch on a main line for measurement and arranging rules, namely when a current node on the branch is drawn, determining the main line coordinate of the branch, and then performing collision check when the current node is drawn; when the number of the object units is too large, the cost for finding two possible colliding objects needs to be reduced by one method; therefore, the drawing is divided into spaces, each node only needs to carry out collision check on the current position, and if the node exists, the node can carry out 8-direction rotation detection collision around the current coordinate until the check is successful;
as shown in fig. 1, fig. 1 is a schematic diagram of a rotation detection collision for automatically generating a setting calculation method of a distribution network line fixed value switch fixed value diagram according to the present invention.
Therefore, the branch reverse exploration surveying and mapping method can be used for dividing the distribution lines by combining the description, and the trunk drawing and the branch drawing of the distribution line can be realized when the lines are drawn.
Preferably, the method further comprises:
fixedly drawing the length of a pixel occupied by each switch and connecting lines on two sides of each switch;
setting a distribution line drawing direction and a margin distance;
starting to draw various switches on a trunk of the line, and sequencing and drawing the drawing sequence of the switches according to the numbers of towers to which the switches belong;
the main branches are sorted according to the numbers of the main towers to which the main branches belong;
and drawing each branch line according to the tower reverse description, wherein each time one branch switch is drawn, the collision check is carried out on the drawn branch switch.
As shown in fig. 2, fig. 2 is a schematic diagram of the final effect of the setting calculation method for automatically generating the distribution network line fixed value switch fixed value diagram provided by the present invention.
The invention also provides computer equipment which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the setting calculation method for automatically generating the distribution network line fixed value switch fixed value graph is realized when the processor executes the program.
The invention also proposes a computer-readable storage medium on which a computer program is stored, which program, when executed by a processor, implements the above-mentioned setting calculation method for automatically generating a distribution network line fixed value switch fixed value map.
Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may also be an electric, mechanical or other form of connection.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention essentially or partially contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. The setting calculation method for automatically generating the fixed value switch fixed value diagram of the distribution network line is characterized by comprising the following steps of: by generating an intuitive graph of the protection constant values, the detail of the protection constant values on the current distribution line can be clearly known, and related personnel can conveniently and quickly troubleshoot and position problems; the automatic mapping steps by the crotch inversion detection method are as follows: firstly, before automatic mapping, accurately dividing the current distribution line in a segmentation, layering and classification manner;
a step of segmentation division: determining the power supply range of the current line according to the difference of the power supply modes on the distribution line and the difference of the states of the interconnection switches;
a hierarchical division step: dividing a trunk line, a branch line and a trunk tower to which branches belong according to the topological connection relation and the belonging relation among the devices on the distribution line; each branch can be sequenced according to the number of the main pole tower to which the branch belongs;
classifying: acquiring the constant value condition of a distribution network line switch on an intelligent constant value diagram, and dividing the distribution network line switch into a voltage type switch and a current type switch according to the physical properties of the switches;
the crotch inversion detection drawing is to divide the paper space into tree structures of different levels, equally divide the space in a known range into a plurality of equal subspaces, and each subspace stores the labeling information of each tree node and node; the independent subspaces have simple structures, and when the spatial data objects are uniformly distributed, the spatial data inserting and inquiring efficiency is high, so that the subspaces are stored on all tree nodes, and the tree nodes are stored according to the sequence of a trunk before branches when stored;
when drawing a branch node, classifying each branch, sequentially distributing the branch on a main line for measurement and arranging rules, namely when a current node on the branch is drawn, determining the main line coordinate of the branch, and then performing collision check when the current node is drawn; traversing judgment is needed to be carried out on the reverse-narrated branches during collision, when the number of the object units is large, the calculation pressure is high, and the cost for finding two possible collided objects is reduced by one method; therefore, the drawing is divided into spaces, each node only needs to carry out collision check on the current position, and if the node exists, the node can rotate around the current coordinate to detect collision in 8 directions until the check is successful;
therefore, the branch reverse exploration surveying and mapping method can be used for dividing the distribution lines by combining the description, and the trunk drawing and the branch drawing of the distribution line can be realized when the lines are drawn.
2. The setting calculation method for automatically generating the distribution network line fixed value switch fixed value graph according to claim 1, characterized in that the method further comprises:
fixedly drawing the length of a pixel occupied by each switch and connecting lines on two sides of each switch;
setting a distribution line drawing direction and a margin distance;
starting to draw various switches on a trunk of the line, and sequencing and drawing the drawing sequence of the switches according to the numbers of towers to which the switches belong;
the main branches are sorted according to the numbers of the main towers to which the main branches belong;
and drawing each branch line according to the tower reverse description, wherein each time one branch switch is drawn, the collision check is carried out on the drawn branch switch.
3. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the tuning calculation method for automatically generating a distribution network line setpoint switch setpoint map of one of claims 1-2 when executing the program.
4. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, is adapted to carry out a tuning calculation method for automatically generating a distribution network line setpoint switching setpoint map as set forth in one of claims 1-2.
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110994564B (en) * | 2019-11-27 | 2021-11-23 | 积成电子股份有限公司 | Automatic selection and fixed value setting method for protection input switch of power distribution network |
| CN111211538B (en) * | 2020-01-15 | 2022-04-19 | 广东电网有限责任公司 | Method for realizing protection constant value setting through power distribution network line diagram |
| CN111291148B (en) * | 2020-02-27 | 2023-05-26 | 广东电网有限责任公司 | Method and system for generating protection fixed value visualization configuration diagram based on GIS (geographic information System) |
| CN112653125B (en) * | 2020-11-17 | 2022-06-07 | 国网山东省电力公司青岛供电公司 | Method and system for automatically generating power distribution network switch visual constant value matching diagram |
| CN112653104A (en) * | 2020-11-30 | 2021-04-13 | 国网浙江省电力有限公司金华供电公司 | Distribution network rapid setting method based on tree model |
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| US7286905B2 (en) * | 2005-11-16 | 2007-10-23 | At&T Knowledge Ventures, L.P. | Method for calculating availability for line power systems |
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| CN104113048A (en) * | 2014-06-24 | 2014-10-22 | 中国石油化工股份有限公司 | Intelligent protection system of distribution network |
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| CN106887829A (en) * | 2017-03-28 | 2017-06-23 | 国网江西省电力公司电力科学研究院 | A kind of KV two class protection of single supply 10 is configured and fixed value adjusting method |
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