CN112366828A - Power supply reliability monitoring method and system for important users of power distribution network - Google Patents
Power supply reliability monitoring method and system for important users of power distribution network Download PDFInfo
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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]
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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
- H02J13/00002—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 monitoring
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- H—ELECTRICITY
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- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
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Abstract
The invention provides a method and a system for monitoring power supply reliability of important users of a power distribution network, wherein the method comprises the following steps of S1, acquiring transformer substation data and user data in an area to be monitored; step S2, according to the substation data, line outgoing switch data of a plurality of substations are called, and topological relation data of the plurality of substations are obtained; step S3, screening important users in the user data through a first preset rule, matching the important users with a plurality of substations, and acquiring corresponding relation data of the important users and the substations; and step S4, acquiring the power supply path of each distribution network transformer within the preset voltage level, and dividing the reliability and risk level of the power supply path wind of each distribution network transformer according to a second preset rule to generate corresponding reliability data. The invention improves the monitoring level of the power supply reliability of important users, provides observable main distribution integrated power supply path information, and has more intuitive automatic path mapping display means.
Description
Technical Field
The invention relates to the technical field of power system automation, in particular to a method and a system for monitoring power supply reliability of important users of a power distribution network.
Background
The power grid consists of five links of power generation, power transmission, power transformation, power distribution and power utilization, wherein the power distribution and the power utilization are the user terminals of the power grid, and 80% of electric energy is consumed by the user terminals. The user side mainly comprises three blocks of industrial and mining enterprises, building buildings and infrastructure.
The intelligent power monitoring system is a product produced in the digital and information era, and is widely applied to high/low voltage power transformation and distribution systems in various fields such as buildings at the side of power grid users, stadiums, scientific research facilities, airports, transportation, hospitals, power and petrochemical industries and the like. For example, with the development of information technology, intelligent buildings have become an important sign for city modernization and informatization. The composition of intelligent buildings typically has three elements, namely a Building Automation System (BAS), a Communications Automation System (CAS), and an Office Automation System (OAS). The BAS is a unified body for performing integrated control management on the entire system, and is based on a computer local area network as a communication basis and used for equipment operation management, data acquisition and process control. The intelligent power monitoring system is an important component in the BAS, can greatly improve the management level of the whole power transformation and distribution system, is conveniently networked with other BASs, and forms complete automatic management. Therefore, the intelligent power monitoring system is an indispensable component, and most of the existing intelligent power monitoring systems monitor the working states of a high-voltage switch cabinet, a low-voltage switch cabinet, an emergency generator set, a power transformer, an EPS/UPS/ATS and the like.
However, there is no effective and reasonable way for monitoring on the user side, and especially for important users, there are problems that the power supply path is difficult to identify quickly and the power supply reliability cannot be quantified, and these data have irreplaceable effects on optimizing the power handling procedures, reducing the power handling cost and improving the power supply capability.
Disclosure of Invention
The invention aims to provide a power supply reliability monitoring method and system for important users of a power distribution network, and solves the technical problems that power supply paths of the important users are difficult to identify quickly and power supply reliability cannot be quantized.
In one aspect of the present invention, a method for monitoring power supply reliability of an important user of a power distribution network is provided, which includes:
step S1, acquiring substation data and user data in the area to be monitored;
step S2, line outgoing switch data of a plurality of substations are called from the substation data, corresponding substations are spliced according to the line outgoing switch data, and topological relation data of the plurality of substations are obtained;
step S3, screening the user data according to a preset screening rule to obtain important users, matching the important users with a plurality of substations according to topological relation data of the plurality of substations, and obtaining corresponding relation data of the important users and the substations;
step S4, acquiring a power supply path of each distribution network transformer in a preset voltage level according to corresponding relation data of an important user and a transformer substation, dividing the reliability and risk level of power supply path wind of each distribution network transformer according to a preset dividing rule, and generating corresponding reliability data; and generating a power supply path diagram of each distribution network transformer, and displaying the reliability and the risk level of important users in the power supply path diagram.
Preferably, the step S4 includes: acquiring a transformer substation corresponding to the important user and a topological node related to the transformer substation according to the corresponding relation data of the important user and the transformer substation; obtaining the types of the related topological nodes, screening bus nodes in the topological nodes, taking the bus nodes as a ring main unit center, taking the topological nodes in a preset ring main unit range as node objects, statically topological out all the node objects, counting and generating a statistical result; the types of the topology nodes comprise bus nodes, edge nodes and common nodes.
Preferably, the step S4 further includes: and acquiring the logic coordinates of each node according to the statistical result and the sequence of the occupied range of each node from large to small to generate node coordinate data.
Preferably, the step S4 further includes: calculating the maximum lattice number occupied by each node according to the node coordinate data, and acquiring node size data of a graph corresponding to each node; and carrying out coordinate transformation again according to the node coordinate data and the node size data and a third preset rule to place each node object.
Preferably, the step S4 further includes: acquiring data of edges of the node objects, and judging the types and relative positions of the edges of the node objects according to the node objects at the two ends of each edge; distributing channels and sequencing tracks according to the types and relative positions of the edges of the node objects to generate power supply path data; the type of the edge of the node object comprises a left side node or a right side node; the relative positions include horizontal, vertical, upper right, and lower right.
Another aspect of the present invention further provides a system for monitoring power supply reliability of important users of a power distribution network, which is used to implement the method for monitoring power supply reliability of important users of a power distribution network, and the method includes:
the data acquisition module is used for acquiring transformer substation data and user data in an area to be monitored and carrying out format conversion on the transformer substation data and the user data according to a preset format;
the system comprises a relation analysis module, a data processing module and a data processing module, wherein the relation analysis module is used for calling outgoing line switch data of a plurality of substations from the substation data, splicing the corresponding substations according to the outgoing line switch data and acquiring topological relation data of the plurality of substations; screening the user data according to a preset screening rule to obtain important users, matching the important users with the plurality of substations according to topological relation data of the plurality of substations, and obtaining corresponding relation data of the important users and the substations;
the reliability analysis module is used for acquiring a power supply path of each distribution network transformer in a preset voltage level according to corresponding relation data of an important user and the transformer substation, dividing the reliability and risk level of power supply path wind of each distribution network transformer according to a preset division rule, and generating corresponding reliability data; and generating a power supply path diagram of each distribution network transformer, and displaying the reliability and the risk level of important users in the power supply path diagram.
Preferably, the reliability analysis module is configured to obtain a substation corresponding to the important user and a topology node related to the substation according to the data of the correspondence between the important user and the substation; obtaining the types of the related topological nodes, screening bus nodes in the topological nodes, taking the bus nodes as a ring main unit center, taking the topological nodes in a preset ring main unit range as node objects, statically topological out all the node objects, counting and generating a statistical result; the types of the topology nodes comprise bus nodes, edge nodes and common nodes.
Preferably, the reliability analysis module is further configured to obtain the logical coordinates of each node according to the statistical result and in a descending order of the occupied range of each node, and generate node coordinate data.
Preferably, the reliability analysis module is further configured to calculate a maximum square number occupied by each node according to the node coordinate data, and obtain node size data of a graph corresponding to each node; and carrying out coordinate transformation again according to the node coordinate data and the node size data and a third preset rule to place each node object.
Preferably, the reliability analysis module is further configured to obtain data of edges of the node object, and determine types and relative positions of the edges of the node object according to the node objects at two ends of each edge; distributing channels and sequencing tracks according to the types and relative positions of the edges of the node objects to generate power supply path data; the type of the edge of the node object comprises a left side node or a right side node; the relative positions include horizontal, vertical, upper right, and lower right.
In summary, the embodiment of the invention has the following beneficial effects:
according to the method and the system for monitoring the power supply reliability of the important users of the power distribution network, the topological relation of the power distribution station is determined through the main distribution network, the number of power supply points of the important users in each voltage class of 10kV to 110kV is identified, and the power supply reliability of the important users is displayed by combining a main distribution power supply path diagram and two chart modes. The problems that the power supply path of an important user is difficult to identify quickly and the power supply reliability cannot be quantized are solved; the monitoring level of the power supply reliability of important users is improved, observable main distribution integrated power supply path panoramic information is provided for related workers, and the path automatic mapping display means is more visual.
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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 introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is within the scope of the present invention for those skilled in the art to obtain other drawings based on the drawings without inventive exercise.
Fig. 1 is a main flow diagram of a method for monitoring power supply reliability of an important user of a power distribution network according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a power supply reliability monitoring system for important users of a power distribution network in an embodiment of the present invention.
Fig. 3 is an exemplary diagram of power supply reliability of an important user in the embodiment of the present invention.
Fig. 4 is an exemplary diagram of power supply reliability at each voltage level according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic diagram illustrating an embodiment of a method for monitoring power supply reliability of important users of a power distribution network according to the present invention. In this embodiment, the method comprises the steps of:
step S1, obtaining transformer substation data and user data in an area to be monitored, and performing format conversion on the transformer substation data and the user data according to a preset format; it can be understood that the acquisition of the distribution network model and the model construction are realized by interacting with a GIS (Geographic Information System) System. And realizing the model of the important user and forming the corresponding relation between the important user and the distribution transformation by interacting with the user management system or directly using the important user modeling function.
Step S2, line outgoing switch data of a plurality of substations are called from the substation data, corresponding substations are spliced according to the line outgoing switch data, and topological relation data of the plurality of substations are obtained; it can be understood that the automatic splicing of the main distribution network model is realized by using the name of the transformer substation and the name naming rule of the outgoing switch and taking the outgoing switch as a key point, so that a main distribution integrated model and a complete topological relation are constructed.
Step S3, as shown in fig. 3, screening the user data according to a preset screening rule to obtain an important user, and matching the important user with a plurality of substations according to the topological relation data of the plurality of substations to obtain corresponding relation data of the important user and the substations; it can be understood that the important users are modeled and the corresponding relation between the important users and the distribution transformer is formed.
Step S4, as shown in fig. 4, obtaining a power supply path of each distribution network transformer within a preset voltage class according to the data of the correspondence between the important user and the transformer substation, dividing the power supply path wind of each distribution network transformer by reliability and risk class according to a preset division rule, and generating corresponding reliability data; and generating a power supply path diagram of each distribution network transformer, and displaying the reliability and the risk level of important users in the power supply path diagram. It can be understood that according to the distribution network transformers corresponding to the important users, the power supply paths of each distribution network transformer from 10kV to 500kV in each voltage level are obtained through analysis, the power supply path diagrams of each distribution network transformer are automatically generated through a reasonable algorithm, and meanwhile, chart display is conducted according to the risk types and two dimensions of the important users.
In a specific embodiment, a transformer substation corresponding to an important user and a topological node related to the transformer substation are obtained according to corresponding relation data of the important user and the transformer substation; obtaining the types of the related topological nodes, screening bus nodes in the topological nodes, taking the bus nodes as a ring main unit center, taking the topological nodes in a preset ring main unit range as node objects, statically topological out all the node objects, counting and generating a statistical result; the types of the topology nodes comprise bus nodes, edge nodes and common nodes. It can be understood that the device object is constructed according to the device object and the topology node number thereof; and then, according to the node type, taking the bus as the center of the ring main unit, statically extending all node objects of the ring main unit, constructing the ring main unit object, and expressing the node objects in an abstract way.
Specifically, according to the statistical result, the logical coordinates of each node are obtained in the descending order of the occupied range of each node, node coordinate data are generated, and the preliminary layout work of the nodes is completed; calculating the maximum lattice number N x M occupied by each node according to the node coordinate data, namely the node size of the whole graph, and acquiring node size data of the graph corresponding to each node; and performing coordinate transformation again according to the node coordinate data and the node size data and a third preset rule to place each node object, namely, increasing horizontal and vertical channels to perform coordinate transformation again according to the node coordinate and the node position size to place each node object.
Then, specifically, data of the edges of the node objects are obtained, and the types and relative positions of the edges of the node objects are judged according to the node objects at the two ends of each edge; distributing channels and sequencing tracks according to the types and relative positions of the edges of the node objects to generate power supply path data; the type of the edge of the node object comprises a left side node or a right side node; the relative positions include horizontal, vertical, upper right, and lower right. It can be understood that, because the node layout adopts the hierarchical layout with the prior width, the left and right nodes can be specified, and the relative positions of the two nodes are ensured, specifically: horizontal, vertical, upper right and lower right.
Fig. 2 is a schematic diagram of an embodiment of a system for monitoring power supply reliability of important users of a power distribution network according to the present invention. In this embodiment, the method is used to implement a power supply reliability monitoring method for important users of a power distribution network, and includes:
the data acquisition module is used for acquiring transformer substation data and user data in an area to be monitored and carrying out format conversion on the transformer substation data and the user data according to a preset format.
The system comprises a relation analysis module, a data processing module and a data processing module, wherein the relation analysis module is used for calling outgoing line switch data of a plurality of substations from the substation data, splicing the corresponding substations according to the outgoing line switch data and acquiring topological relation data of the plurality of substations; and screening the user data according to a preset screening rule to obtain important users, matching the important users with the plurality of substations according to the topological relation data of the plurality of substations, and obtaining corresponding relation data of the important users and the substations.
The reliability analysis module is used for acquiring a power supply path of each distribution network transformer in a preset voltage level according to corresponding relation data of an important user and the transformer substation, dividing the reliability and risk level of power supply path wind of each distribution network transformer according to a preset division rule, and generating corresponding reliability data; and generating a power supply path diagram of each distribution network transformer, and displaying the reliability and the risk level of important users in the power supply path diagram. In a specific embodiment, the reliability analysis module is used for acquiring a transformer substation corresponding to an important user and a topological node related to the transformer substation according to corresponding relation data of the important user and the transformer substation; obtaining the types of the related topological nodes, screening bus nodes in the topological nodes, taking the bus nodes as a ring main unit center, taking the topological nodes in a preset ring main unit range as node objects, statically topological out all the node objects, counting and generating a statistical result; the types of the topology nodes comprise bus nodes, edge nodes and common nodes. And the reliability analysis module is further used for acquiring the logic coordinates of each node according to the statistical result and the sequence of the occupied range of each node from large to small, and generating node coordinate data. The reliability analysis module is further used for calculating the maximum lattice number occupied by each node according to the node coordinate data and acquiring node size data of the graph corresponding to each node; and carrying out coordinate transformation again according to the node coordinate data and the node size data and a third preset rule to place each node object. The reliability analysis module is further used for acquiring data of the edges of the node objects and judging the types and relative positions of the edges of the node objects according to the node objects at the two ends of each edge; distributing channels and sequencing tracks according to the types and relative positions of the edges of the node objects to generate power supply path data; the type of the edge of the node object comprises a left side node or a right side node; the relative positions include horizontal, vertical, upper right, and lower right.
In summary, the embodiment of the invention has the following beneficial effects:
according to the method and the system for monitoring the power supply reliability of the important users of the power distribution network, the power supply reliability of the important users is displayed by combining a main distribution integrated power supply path diagram and two diagram modes according to the number of power supply points of the important users in each voltage class of 10kV to 110kV by constructing a main distribution integrated electrical topological relation. The problems that the power supply path of an important user is difficult to identify quickly and the power supply reliability cannot be quantized are solved. The monitoring level of the power supply reliability of important users is improved, observable main distribution integrated power supply path panoramic information is provided for related workers, and the path automatic mapping display means is more visual.
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (10)
1. A method for monitoring power supply reliability of important users of a power distribution network is characterized by comprising the following steps:
step S1, acquiring substation data and user data in the area to be monitored;
step S2, line outgoing switch data of a plurality of substations are called from the substation data, corresponding substations are spliced according to the line outgoing switch data, and topological relation data of the plurality of substations are obtained;
step S3, screening the user data according to a preset screening rule to obtain important users, matching the important users with a plurality of substations according to topological relation data of the plurality of substations, and obtaining corresponding relation data of the important users and the substations;
step S4, acquiring a power supply path of each distribution network transformer in a preset voltage level according to corresponding relation data of an important user and a transformer substation, dividing the reliability and risk level of power supply path wind of each distribution network transformer according to a preset dividing rule, and generating corresponding reliability data; and generating a power supply path diagram of each distribution network transformer, and displaying the reliability and the risk level of important users in the power supply path diagram.
2. The method of claim 1, wherein the step S4 includes:
acquiring a transformer substation corresponding to the important user and a topological node related to the transformer substation according to the corresponding relation data of the important user and the transformer substation; obtaining the types of the related topological nodes, screening bus nodes in the topological nodes, taking the bus nodes as a ring main unit center, taking the topological nodes in a preset ring main unit range as node objects, statically topological out all the node objects, counting and generating a statistical result; the types of the topology nodes comprise bus nodes, edge nodes and common nodes.
3. The method of claim 2, wherein the step S4 further comprises:
and acquiring the logic coordinates of each node according to the statistical result and the sequence of the occupied range of each node from large to small to generate node coordinate data.
4. The method of claim 3, wherein the step S4 further comprises:
calculating the maximum lattice number occupied by each node according to the node coordinate data, and acquiring node size data of a graph corresponding to each node; and carrying out coordinate transformation again according to the node coordinate data and the node size data and a third preset rule to place each node object.
5. The method of claim 4, wherein the step S4 further comprises:
acquiring data of edges of the node objects, and judging the types and relative positions of the edges of the node objects according to the node objects at the two ends of each edge; distributing channels and sequencing tracks according to the types and relative positions of the edges of the node objects to generate power supply path data; the type of the edge of the node object comprises a left side node or a right side node; the relative positions include horizontal, vertical, upper right, and lower right.
6. A system for monitoring the reliability of power supply to a critical user of a power distribution network, for carrying out the method according to any one of claims 1 to 5, comprising:
the data acquisition module is used for acquiring transformer substation data and user data in an area to be monitored and carrying out format conversion on the transformer substation data and the user data according to a preset format;
the system comprises a relation analysis module, a data processing module and a data processing module, wherein the relation analysis module is used for calling outgoing line switch data of a plurality of substations from the substation data, splicing the corresponding substations according to the outgoing line switch data and acquiring topological relation data of the plurality of substations; screening the user data according to a preset screening rule to obtain important users, matching the important users with the plurality of substations according to topological relation data of the plurality of substations, and obtaining corresponding relation data of the important users and the substations;
the reliability analysis module is used for acquiring a power supply path of each distribution network transformer in a preset voltage level according to corresponding relation data of an important user and the transformer substation, dividing the reliability and risk level of power supply path wind of each distribution network transformer according to a preset division rule, and generating corresponding reliability data; and generating a power supply path diagram of each distribution network transformer, and displaying the reliability and the risk level of important users in the power supply path diagram.
7. The system of claim 6, wherein the reliability analysis module is configured to obtain a substation corresponding to the important user and a topology node related to the substation according to correspondence data between the important user and the substation; obtaining the types of the related topological nodes, screening bus nodes in the topological nodes, taking the bus nodes as a ring main unit center, taking the topological nodes in a preset ring main unit range as node objects, statically topological out all the node objects, counting and generating a statistical result; the types of the topology nodes comprise bus nodes, edge nodes and common nodes.
8. The system of claim 7, wherein the reliability analysis module is further configured to obtain the logical coordinates of each node in a descending order of the occupied range of each node according to the statistical result, and generate node coordinate data.
9. The system of claim 8, wherein the reliability analysis module is further configured to calculate a maximum number of squares occupied by each node according to the node coordinate data, and obtain node size data of a graph corresponding to each node; and carrying out coordinate transformation again according to the node coordinate data and the node size data and a third preset rule to place each node object.
10. The system of claim 9, wherein the reliability analysis module is further configured to obtain data of edges of the node objects, and determine types and relative positions of the edges of the node objects according to node objects at two ends of each edge; distributing channels and sequencing tracks according to the types and relative positions of the edges of the node objects to generate power supply path data; the type of the edge of the node object comprises a left side node or a right side node; the relative positions include horizontal, vertical, upper right, and lower right.
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