CN108494095B - Bus power supply range based automatic identification and display method - Google Patents
Bus power supply range based automatic identification and display method Download PDFInfo
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- CN108494095B CN108494095B CN201810375862.0A CN201810375862A CN108494095B CN 108494095 B CN108494095 B CN 108494095B CN 201810375862 A CN201810375862 A CN 201810375862A CN 108494095 B CN108494095 B CN 108494095B
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- 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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
Abstract
The invention discloses a method for automatically identifying and displaying a bus-based power supply range, which comprises the following steps: s200, analyzing the operation mode of the target bus according to remote signaling and remote measuring data by utilizing the power grid operation state acquired by the dispatching automation system in real time, and generating the lower-level plant station of a film area supplied by the target bus and the operation mode information of the bus in the plant station; and step S300, automatically generating and displaying a bus operation mode diagram for the analysis result information of the target bus operation mode through bus layout, circuit layout and switch layout. The method can dynamically generate the bus operation mode structure diagram, assist the regulation and control personnel to more intuitively control the real-time power supply range of the bus, and effectively improve the risk analysis and rapid handling capability of the bus fault.
Description
Technical Field
The invention relates to the technical field of power system dispatching automation, in particular to a method for automatically identifying and displaying a power supply range based on a bus.
Background
With the rapid development of urban economic construction and society in China, the power load is increasing day by day, and the control and management work of power grid operation becomes more complicated than that in any period in the past. Especially, a large-scale urban power grid has high load density and complex bus operation mode, large-scale power failure accidents are easy to happen under the condition of faults, and how to visually and dynamically monitor the real-time bus operation mode and timely make risk prevention work is very important.
The traditional power grid dispatching automation system only comprises a plant station diagram and a tidal current diagram, wherein the plant station diagram can only display local in-station equipment operation information and cannot monitor the operation state of a power grid from the perspective of the whole network, the tidal current diagram contains the whole-network plant station information but is only limited to information among plant stations and cannot reflect the operation condition of in-station equipment, the observability of the tidal current diagram is severely restricted by the scale of the power grid, and the diagram is too complex due to the fact that a plurality of plant stations exist. The existing dispatching automation system cannot provide a structure diagram based on a bus operation mode, and if a manual drawing mode is adopted, on one hand, the maintenance workload is large, on the other hand, the timeliness of the diagram is not high, and the change of the power grid operation mode cannot be adapted.
Therefore, it is necessary to combine the power grid model and the real-time operation mode to dynamically generate a bus operation mode structure diagram according to the characteristics of the bus operation mode, that is, power supply range information of the bus is visually reflected on a single diagram.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art at least to a certain extent, and provides a method for automatically identifying and displaying a bus power supply range, which can dynamically generate a bus operation mode structure diagram, help a regulation and control person to more intuitively master the real-time bus power supply range, and effectively improve the risk analysis and rapid handling capability of bus faults.
In order to achieve the purpose of the present invention, an embodiment of the present invention provides a method for automatically identifying and displaying a bus-based power supply range, which specifically adopts the following technical scheme:
the method comprises the following steps:
s100, acquiring target bus model information and a network topology result in a power grid dispatching automation system;
s200, analyzing the operation mode of a target bus according to remote signaling and remote measuring data by utilizing the power grid operation state acquired by a dispatching automation system in real time, and generating the operation mode information of a subordinate plant station of a film area supplied by the target bus and an in-station bus thereof;
s300, automatically generating and displaying a bus operation mode diagram for the analysis result information of the target bus operation mode through bus layout, circuit layout and switch layout.
Optionally, in step S100, the target bus model information and the network topology result include a bus name, a name of a station to which the bus belongs, a bus node number, and node information of the whole network device.
Optionally, the step S200 includes:
step S201, selecting a target bus, and starting searching from a bus node until a terminal device;
step S202, marking all buses, lines and switch equipment passing through in the searching process;
step S203, bus information connected with two ends of the line is searched until bus equipment is searched;
step S204, searching switch information connected with two ends of the line until the switch equipment is searched;
step S205, searching target bus connecting switch information, starting from a target bus node, searching for the disconnecting link equipment which is the same as the target bus node, and starting from the disconnecting link node, searching for the switch information connected with the disconnecting link node.
Optionally, the step S300 includes:
step S301, drawing a bus, drawing a target bus at the center of the graph, and uniformly distributing power supply range buses up and down along the target bus;
step S302, drawing lines one by one, positioning the lines through bus information at two ends of the lines, and uniformly distributing the lines in the middle areas of the buses at two ends of the lines in the drawing process under the condition of a plurality of lines;
step S303, obtaining the line end switch information, and drawing the switch equipment at the connection position of the bus and the line end.
And step S304, storing the bus operation mode diagram in a standard graphic format after the bus operation mode diagram is drawn.
Optionally, the displaying of the bus bar operation mode diagram is opened for displaying by using a scheduling automation system graphic tool.
Optionally, in step S201, the search process follows the following constraint:
1) forbidding to pass through a transformer of a station where the target bus is located;
2) searching the high-voltage side of the circuit to the low-voltage side, and forbidding reverse search;
3) searching the transformer from the high-voltage side to the low-voltage side, and forbidding reverse search;
4) the switch and the disconnecting link pass through the equipment in the closing state, and the state is that the passage is separately forbidden.
Optionally, in step S204, a local search method is specifically adopted to search the bus information connected to the two ends of the line, the search range is limited within the range of the voltage class device to which the line end belongs, and the switch and the disconnecting link are passed through in the search process until the bus device is searched.
Optionally, the step S205 includes: and limiting the search range in the range of the voltage class equipment to which the line end point belongs, and traversing the knife switch in the search process until the switch equipment is searched.
The embodiment of the invention has the following beneficial effects:
the embodiment of the invention realizes automatic identification and mapping display of the bus operation mode, can analyze the lower-level power supply range of the bus based on the real-time operation state of the power grid, and automatically generates the topological graph through the connection relation between the bus and the line, and the topological graph can simultaneously display the measurement of key equipment in the bus power supply range and combine the dynamic change of the real-time operation mode.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of a method for automatically identifying and displaying a bus-based power supply range according to an embodiment of the present invention;
FIG. 2 is a flow chart of a bus operation mode identification method according to an embodiment of the present invention;
fig. 3 is a flowchart of a bus topology drawing method according to an embodiment of the present invention.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In order to explain the technical solution of the present invention, the following description is made by referring to the specific embodiments and the accompanying drawings.
The embodiment of the invention provides a method for automatically identifying and displaying a power supply range based on a bus, which is applied to the field of power system dispatching automation, and as shown in figure 1, the method for automatically identifying and displaying the power supply range based on the bus comprises the following steps:
step S100, obtaining target bus model information and a network topology result in a power grid dispatching automation system;
step S200, analyzing the operation mode of a target bus according to remote signaling and remote measuring data by utilizing the power grid operation state acquired by a dispatching automation system in real time, and generating the operation mode information of a subordinate plant station of a film area supplied by the target bus and an in-station bus thereof;
and step S300, automatically generating and displaying a bus operation mode diagram for the analysis result information of the target bus operation mode through bus layout, circuit layout and switch layout.
The method provided by the embodiment of the invention is used for acquiring the real-time operation state of the power grid based on the power grid Energy Management System (EMS), automatically analyzing and identifying the bus operation mode and generating the graph, and achieving the purpose of monitoring the bus operation mode in real time, so that a regulation and control worker can visually know the bus operation mode, timely master the real-time power supply range of the bus, and effectively improve the risk analysis and rapid handling capacity of bus faults.
As an example of the present invention, in step S100, the target bus model information and the network topology result preferably include, but are not limited to, a bus name, a name of a station to which the bus belongs, a bus node number, and node information of a whole network device.
The method provided by the embodiment of the invention is realized based on a power grid Energy Management System (EMS), and mainly comprises two parts, wherein the first part is used for identifying and analyzing the operation mode of the bus, as shown in figure 2, and the second part is used for drawing a graph of the bus, as shown in figure 3.
As an example of the present invention, as shown in fig. 2, the step S200 includes:
step S201, setting a target bus, and starting searching from a bus node until a terminal device;
step S202, searching a bus power supply range, and marking all buses, lines and switch equipment which pass through in the searching process;
step S203, analyzing the information of the bus connected with the circuit, and searching the information of the bus connected with the two ends of the circuit until the bus equipment is searched;
step S204, analyzing the information of the line end connection switch, and searching the information of the switches connected with the two ends of the line until the switch equipment is searched;
step S205, analyzing the bus connection relation information, searching target bus connection switch information, starting from a target bus node, searching for the disconnecting link equipment same as the target bus node, and starting from the disconnecting link node, searching for the switch information connected with the disconnecting link node.
As an example of the present invention, as shown in fig. 3, the step S300 includes:
step S301, obtaining a bus operation mode analysis result, drawing a bus, and carrying out bus layout, namely drawing bus equipment on a topological graph, wherein a target bus is drawn at the center of the graph, and power supply range buses are uniformly distributed along the target bus up and down;
step S302, drawing lines one by one, carrying out line layout, positioning the lines through bus information at two ends of the lines, and uniformly distributing the lines in the middle areas of the buses at two ends of the lines in the drawing process under the condition of a plurality of lines;
step S303, obtaining the line end switch information, and drawing the switch equipment at the connection position of the bus and the line end.
In step S304, the bus bar operating mode map is saved in a standard graphic format, such as BMP format, JPEG format, PNG format, and the like, after the bus bar operating mode map is completely drawn, and the standard graphic format is not limited in this embodiment.
As an example of the present invention, the display of the bus operation mode diagram is opened by using a graphic tool, preferably but not limited to a power grid dispatching automation system, so as to assist a regulation and control person to more intuitively control the real-time power supply range of the bus, and effectively improve the risk analysis and rapid handling capability of the bus fault.
As an example of the present invention, in step S201, the search process follows the following constraint:
1) forbidding to pass through a transformer of a station where the target bus is located;
2) searching the high-voltage side of the circuit to the low-voltage side, and forbidding reverse search;
3) searching the transformer from the high-voltage side to the low-voltage side, and forbidding reverse search;
4) the switch and the disconnecting link pass through the equipment in the closing state, and the state is that the passage is separately forbidden.
In the present embodiment, the above conditions 1) -4) are satisfied, the search is continued in the search direction until the end condition is satisfied.
As an example of the present invention, in step S204, a local search method is specifically adopted to search the bus information connected to the two ends of the line, the search range is limited within the range of the voltage class device to which the line end belongs, and the switch and the disconnecting link are traversed during the search until the bus device is searched.
As an example of the present invention, the step S205 includes: and limiting the search range in the range of the voltage class equipment to which the line end point belongs, and traversing the knife switch in the search process until the switch equipment is searched.
As can be seen from the above description, implementing the embodiments of the present invention has the following beneficial effects:
the embodiment of the invention realizes automatic identification and mapping display of the bus operation mode, can analyze the lower-level power supply range of the bus based on the real-time operation state of the power grid, and automatically generates the topological graph through the connection relation between the bus and the line, and the topological graph can simultaneously display the measurement of key equipment in the bus power supply range and combine the dynamic change of the real-time operation mode.
The parts of the method in the embodiment of the present invention that are not developed can refer to the corresponding parts of the method in the above embodiment, and are not developed in detail here.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (7)
1. A method for automatically identifying and displaying a bus-based power supply range is characterized by comprising the following steps:
step S100, obtaining target bus model information and a network topology result in a power grid dispatching automation system;
step S200, analyzing the operation mode of a target bus according to remote signaling and remote measuring data by utilizing the power grid operation state acquired by a dispatching automation system in real time, and generating the operation mode information of a subordinate plant station of a film area supplied by the target bus and an in-station bus thereof;
wherein the step S200 includes:
step S201, selecting a target bus, and starting searching from a bus node until a terminal device;
step S202, marking all buses, lines and switch equipment passing through in the searching process;
step S203, bus information connected with two ends of the line is searched until bus equipment is searched;
step S204, searching switch information connected with two ends of the line until the switch equipment is searched;
step S205, searching target bus connection switch information, starting from a target bus node, searching for the disconnecting link equipment same as the target bus node, and starting from the disconnecting link node, searching for the switch information connected with the disconnecting link node;
and step S300, automatically generating and displaying a bus operation mode diagram for the analysis result information of the target bus operation mode through bus layout, circuit layout and switch layout.
2. The method according to claim 1, wherein in step S100, the target bus model information and the network topology result include a bus name, a name of a station to which the bus belongs, a bus node number, and node information of the whole network device.
3. The method for automatically identifying and displaying based on the bus power supply range according to claim 1, wherein the step S300 comprises:
step S301, drawing a bus, drawing a target bus at the center of the graph, and uniformly distributing power supply range buses up and down along the target bus;
step S302, drawing lines one by one, positioning the lines through bus information at two ends of the lines, and uniformly distributing the lines in the middle areas of the buses at two ends of the lines in the drawing process under the condition of a plurality of lines;
step S303, obtaining line endpoint switch information, and drawing switch equipment at the connection position of the bus and the line endpoint;
and step S304, storing the bus operation mode diagram in a standard graphic format after the bus operation mode diagram is drawn.
4. The method for automatically identifying and displaying based on the bus power supply range according to claim 3, wherein the display of the bus operation mode graph is opened for display by using a graphic tool of a dispatching automation system.
5. The method for automatically identifying and displaying the bus power supply range according to claim 1, wherein in the step S201, the searching process follows the following constraints:
1) forbidding to pass through a transformer of a station where the target bus is located;
2) searching the high-voltage side of the circuit to the low-voltage side, and forbidding reverse search;
3) searching the transformer from the high-voltage side to the low-voltage side, and forbidding reverse search;
4) the switch and the disconnecting link pass through the equipment in the closing state, and the state is that the passage is separately forbidden.
6. The method according to claim 1, wherein in step S204, a local search method is specifically used to search bus information connected to two ends of the line, the search range is limited within a range of voltage class devices to which line end points belong, and switches and disconnecting links are traversed during the search until bus devices are searched.
7. The method for automatically identifying and displaying based on the bus power supply range according to claim 1, wherein the step S205 comprises: and limiting the search range in the range of the voltage class equipment to which the line end point belongs, and traversing the knife switch in the search process until the switch equipment is searched.
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| CN111914376A (en) * | 2020-07-16 | 2020-11-10 | 深圳供电局有限公司 | Method and device for automatically constructing power grid bus mode diagram and storage medium |
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| CN103903103A (en) * | 2014-04-18 | 2014-07-02 | 国家电网公司 | Online model parameter collection method based on process cross-region power grid running method |
| CN104218672B (en) * | 2014-07-11 | 2016-09-07 | 国家电网公司 | A kind of power distribution network operation risk early warning system evaluated based on real-time running state |
| CN106410965A (en) * | 2016-10-26 | 2017-02-15 | 珠海许继芝电网自动化有限公司 | Intelligent low-voltage distribution electricity monitoring system based on wiring diagram |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903103A (en) * | 2014-04-18 | 2014-07-02 | 国家电网公司 | Online model parameter collection method based on process cross-region power grid running method |
| CN104218672B (en) * | 2014-07-11 | 2016-09-07 | 国家电网公司 | A kind of power distribution network operation risk early warning system evaluated based on real-time running state |
| CN106410965A (en) * | 2016-10-26 | 2017-02-15 | 珠海许继芝电网自动化有限公司 | Intelligent low-voltage distribution electricity monitoring system based on wiring diagram |
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