CN110071824B - Automatic construction and visualization method for power distribution network topology - Google Patents
Automatic construction and visualization method for power distribution network topology Download PDFInfo
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- CN110071824B CN110071824B CN201910242788.XA CN201910242788A CN110071824B CN 110071824 B CN110071824 B CN 110071824B CN 201910242788 A CN201910242788 A CN 201910242788A CN 110071824 B CN110071824 B CN 110071824B
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Abstract
The invention discloses a method for automatically constructing and visualizing a power distribution network topology. The invention constructs a complete topological network by using the local topological information of the intelligent power distribution terminal, and provides power distribution monitoring based on a network topological structure through a graphical component; the invention relates to an intelligent terminal module, a data acquisition module, a wireless transmission module, a topology construction module and a graphical module. Only the serial numbers of the upstream terminal equipment and the downstream terminal equipment of the intelligent terminal are required to be uniformly recorded into the intelligent terminal, and after the intelligent terminal is powered on, the local topology information of the intelligent terminal is automatically and remotely led into the platform server by the intelligent terminal. The platform server converts the local topology information provided by each intelligent terminal into complete distribution network topology information in a directed graph form, and finally converts the complete distribution network topology information into a visual topology network graph through a graphical component, so that a distribution management user can monitor the running state of a distribution system through the visual topology network graph.
Description
Technical Field
The invention relates to the field of network topology construction, in particular to a power distribution network topology automatic construction and visualization method.
Background
With the increasingly tight relationship between life, production and power in the modern society, various power consumers also put higher demands on the quality of power supply and distribution. Power distribution systems are an important component of modern power distribution systems as a direct link between the power system and the power consumer. At present, with the increase of the coverage area of the regional distribution network, the distribution network structure is more huge and complex, so that the construction and management of the distribution network topology become very difficult, and the frequently-changed distribution network structure is difficult to maintain manually.
The communication technology and signal control technology at present at home and abroad are mature, so that the operation stability and efficiency of the power distribution monitoring system are greatly improved, but the power distribution system still has key defects in the aspect of network topology management. In a complex and large power distribution network topology, it is difficult to describe and adjust the power distribution network topology by a manual method, and it is difficult to update and maintain the position and state change of any node in the network topology accurately in real time. Meanwhile, for the power distribution detection platform at the present stage, the network topology of the power distribution equipment and the running state detection of the power distribution equipment cannot be well displayed by using the traditional list interface.
Disclosure of Invention
The invention aims to provide a method for automatically constructing and visualizing the topology of a power distribution network, which constructs a complete topology network by using local topology information of a power distribution intelligent terminal and provides a power distribution monitoring and management method based on a network topology structure through a graphical component.
Aiming at the transmission terminal layer and the platform management layer of the existing intelligent power distribution system, the invention further develops and optimizes the existing power distribution topology management mode. For power distribution network deployment personnel, only the numbers of the upstream terminal equipment and the numbers of the downstream terminal equipment of the intelligent terminals are required to be uniformly recorded into the intelligent terminals, and after the intelligent terminals are electrified, the local topology information of the intelligent terminals is automatically and remotely led into the platform server by the intelligent terminals. The platform server converts local topological information provided by each intelligent terminal into complete distribution network topological information in a directed graph mode, and finally converts the complete distribution network topological information into a visual topological network graph through a graphical component, so that a distribution management user can monitor the running state of a distribution system through the visual network topological graph.
The technical solution for realizing the purpose of the invention is as follows:
a distribution network topology automatic construction and visualization method comprises an intelligent terminal module, a data acquisition module, a wireless transmission module, a topology construction module and a graphical module, wherein:
the intelligent terminal module adopts an STM32F103C8T6 microcontroller, the microcontroller acquires data of a bottom layer intelligent power distribution cabinet by means of a CAN bus (regional control bus), and the system is connected to a cloud server through an external GPRS module and an MQTT protocol;
the data acquisition module establishes data interaction between the terminal equipment and the power distribution cabinet by building a CAN field bus, so as to realize bidirectional data transmission of the power distribution cabinet;
the wireless transmission template is externally connected with a GPRS module through an STM32 serial port, and completes GPRS network registration, TCP connection establishment and MQTT client protocol by using an AT instruction;
the topology construction module searches the whole distribution network topology through local topology information of upstream and downstream equipment of each intelligent terminal until all the intelligent terminals are connected into the distribution network topology;
and the graphical module is responsible for converting the network topology data into a network map model and providing an application interface for remote data monitoring and remote equipment control in a real power distribution system.
Furthermore, when the intelligent terminal module is connected to or disconnected from the system, the local upstream and downstream topology information of the terminal is updated to the platform server, and then the topology information is sent to the topology construction module to carry out unified network topology construction.
Further, the topology construction module stores the power distribution topology network by adopting a directed graph, and converts local topology information into an edge set and a point set in the directed graph. And in the topology construction stage, dividing the intelligent terminals into all the digraphs according to the access sequence of the intelligent terminals, and finishing the topology construction stage after all the terminals are connected into the system. Similarly, after the intelligent terminal exits from the system, the intelligent terminal needs to delete the associated points and edges in the directed graph and refresh the whole power distribution topology network structure.
Furthermore, the system of the graphical module utilizes a Qunee graphical component to complete drawing of lines and nodes in the power distribution topology network. Each node and line in the network graph can be expanded and programmed, each node is a specific mapping of the intelligent terminal, and each line segment is a specific mapping of the distribution line. The system realizes the monitoring of the real-time power distribution state by binding the graph for the network topology nodes.
A power distribution network topology construction and visualization method comprises the following steps:
step 1, firstly, initializing an intelligent terminal module, a data acquisition module, a wireless transmission module, a topology construction module and a graphical module;
and 2, according to actual conditions, system personnel acquire upstream and downstream topology information of the intelligent terminal in the network topology and input the information into a disk file of the intelligent terminal. After the intelligent terminal is connected to the system, local topology information is uploaded to a topology construction module in the platform server;
and 3, the topology construction module divides the intelligent terminals into all digraphs for storing the topology of the power distribution network according to the access sequence of the intelligent terminals, and the topology construction phase is finished after all the terminals are connected into the system. Similarly, when the intelligent terminal exits from the system, the topology construction module needs to delete the associated point and side information in the directed graph and refresh the whole distribution topology network structure;
and 4, drawing lines and nodes in the power distribution topology network by the system by utilizing the Qunee graphic component. Each node and line in the network graph have the extensible function, and each node is a specific mapping of an intelligent terminal. The system realizes the monitoring of the real-time power distribution state by binding a chart for a network topology node;
and 5, in the normal operation process of the power distribution system, the data acquisition module acquires power distribution data information, wherein the power distribution data information comprises common electric appliance parameters such as voltage, current, active power, apparent power, power factors and the like. The information is transmitted to a platform server through an MQTT protocol, the platform server receives power distribution data information and then stores the power distribution data information in a database, and the power distribution data information is uploaded to a platform client through a Web Socket channel;
and 6, the platform client receives the equipment operation data uploaded by the server, and the equipment operation data is displayed on a platform interface by using a graphical module Qunee component and a chart component Echarts.
The invention has the beneficial effects that:
(1) The method for automatically constructing the power distribution network topology solves the difficult problem that the network topology is constructed and maintained through manpower under the scene of connection/disconnection of a large number of intelligent terminals in a power distribution system.
(2) The network topology visualization method is provided, and the problem that a management platform cannot directly check a complete network topology structure in a power distribution system is solved.
Drawings
FIG. 1 is a system architecture diagram of the present invention.
Fig. 2 is a diagram of a topology building graphical display sample.
FIG. 3 is a flow chart of node generation for visualization of the topology construction of the patent.
FIG. 4 is a flow diagram of a link generation process for topology construction visualization.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
A power distribution network topology construction and visualization method comprises an intelligent terminal module, a data acquisition module, a wireless transmission module, a topology construction module and a graphical module, wherein a configuration diagram 1 is a system architecture diagram of the invention.
As a specific example, the original information stored in the intelligent terminal is shown in the following table, wherein the parameters of the electrical quantity of the intelligent terminal, specifically, voltage, current, active power, apparent power, and device operation state are included, and the adjacent terminal information includes an upstream terminal number and a downstream terminal number. And uploading the original data of the intelligent terminal to the platform server after the intelligent terminal is connected to the system in a unified way.
TABLE 1
As a specific example, in which fig. 2 is used as a diagram for constructing a graphical display sample according to the topology of the patent, the main graphical capability is provided by a qne primitive component, the qne can introduce many different primitive types (such as nodes, line segments, node clusters, simple shapes, and buses), the primitives can configure different display effects through Javascript, even the primitives can be mounted with each other, and the arrangement of multiple application scenarios can be completed through different combinations and layouts.
In order to enable power consumers to directly complete power distribution data monitoring through a graphical interface, the system binds data generated by the power distribution system such as electric quantity, voltage, current, active power, power factor and equipment running state with each node or line, and presents the running data of the power distribution system by introducing an open source chart component Echarts.
As a specific example, fig. 3 is used as a node generation flow chart for building visualization according to the patent topology, and a detailed process of generating nodes by using a visualization component, namely, a quick node is introduced. Firstly, initializing a Qunee component, acquiring coordinates of a mouse in a current browser, generating a DIV tag by using DOM file operation, and then copying a target node to generate a node dragButton. And testing whether the dragButton node belongs to the Canvas label, if so, drawing an image of the dragButton on the Canvas, and finally putting the dragButton into the DIV label and presenting the DIV label in the Canvas.
As a specific example, in the connection line generation flowchart shown in fig. 4 as a visualization for constructing the topology of the patent, first, by obtaining node information when dragging starts, and determining whether a node belongs to a qune node, that is, whether the node belongs to a primitive node in a qune component, if not, the function is ended. Then, the link starting node is set as the starting variable of the link object, the arrow attribute in the variable is set as the arrow mode, the segment is added to the top canvas, and the link ID is automatically assigned. And finally, obtaining the current mouse position, and calling an invalid method to refresh the graph drawn in the interactive process.
Claims (1)
1. A distribution network topology automatic construction and visualization system is characterized in that the system utilizes local topology information of an intelligent terminal module to construct a complete topology network, and provides distribution monitoring based on a network topology structure through a graphical module; the system comprises an intelligent terminal module, a data acquisition module, a wireless transmission module, a topology construction module and a graphical module, wherein:
the intelligent terminal module adopts an STM32F103C8T6 microcontroller, the microcontroller acquires data of a bottom layer intelligent power distribution cabinet by means of a CAN bus, and the system is connected to a cloud server through an external GPRS module and an MQTT protocol;
the data acquisition module establishes data interaction between the intelligent terminal module and the intelligent power distribution cabinet by building a CAN field bus, so that bidirectional data transmission of the intelligent power distribution cabinet is realized;
the wireless transmission module is externally connected with a GPRS module through an STM32 serial port of an STM32F103C8T6 microcontroller, and finishes GPRS network registration, TCP connection establishment and MQTT client protocol by using an AT instruction;
the topology construction module searches the whole distribution network topology through the local topology information of upstream and downstream equipment of each intelligent terminal module until all the intelligent terminal modules are connected into the distribution network topology;
the graphical module is responsible for converting network topology data into a network map model and providing an application interface for remote data monitoring and remote equipment control in a real power distribution network;
when the intelligent terminal module is connected into and quitted from the system, the local topology information of the intelligent terminal module is updated to the cloud server, and the cloud server is handed to the topology construction module to carry out unified network topology construction;
the topology construction module is used for storing the power distribution network topology by adopting a directed graph and converting local topology information into edge sets and nodes in the directed graph; in the topology construction stage, dividing the intelligent terminal modules into all digraphs according to the access sequence of the intelligent terminal modules, and finishing the topology construction stage after all the intelligent terminal modules are connected into the system; similarly, after the intelligent terminal module exits from the system, the nodes and edges associated with the intelligent terminal module in the directed graph need to be deleted, and the whole distribution network topology structure needs to be refreshed;
the system of the graphical module utilizes a Qunee graphical component to complete drawing of lines and nodes in the power distribution network topology; each node and line in the directed graph can be expanded and programmed, each node is a specific mapping of the intelligent terminal module, and each line segment is a specific mapping of a distribution line; the system realizes the monitoring of the real-time state of the power distribution network by binding a graph for the network topology nodes;
the method for automatically constructing and visualizing the power distribution network topology comprises the following steps:
step 1, initializing an intelligent terminal module, a data acquisition module, a wireless transmission module, a topology construction module and a graphical module;
step 2, system personnel acquire upstream and downstream local topology information of the intelligent terminal module in the network topology and input the information into a disk file of the intelligent terminal module; after the intelligent terminal module is connected into the system, local topology information is uploaded to a topology construction module in the cloud server;
step 3, the topology construction module divides the intelligent terminal modules into all digraphs for storing the power distribution network topology according to the access sequence of the intelligent terminal modules, and the topology construction phase is finished after all the intelligent terminal modules are connected into the system; similarly, when the intelligent terminal module exits the system, the topology construction module needs to delete the associated node and side information in the directed graph and refresh the whole distribution network topology structure;
step 4, drawing lines and nodes in the power distribution network topology by the system through the Qunee graphic component; each node and line in the directed graph have the extensible function, and each node is a specific mapping of an intelligent terminal module; the system realizes the monitoring of the real-time power distribution state by binding a graph for the network topology nodes;
step 5, in the normal operation process of the power distribution network, a data acquisition module acquires power distribution data information, wherein the power distribution data information comprises electric appliance parameters of voltage, current, active power, apparent power and power factors; the power distribution data information is transmitted to a cloud server through an MQTT protocol, the cloud server receives the power distribution data information and then stores the power distribution data information into a database, and a Web Socket channel is used for uploading the power distribution data information to a platform client;
and 6, the platform client receives the power distribution data information uploaded by the cloud server, and the power distribution data information is displayed on a platform interface by using a graphical module Qunee component and a chart component Echarts.
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| CN111553129B (en) * | 2020-04-21 | 2023-02-24 | 广东电网有限责任公司 | SVG and echarts graph fusion method based on canvas |
| CN112116305A (en) * | 2020-06-17 | 2020-12-22 | 中国电力科学研究院有限公司 | Power grid probability visualization model construction method and system for machine learning |
| CN112202593B (en) * | 2020-09-03 | 2024-05-31 | 深圳前海微众银行股份有限公司 | Data acquisition method, device, network management system and computer storage medium |
| CN113381880B (en) * | 2021-05-24 | 2023-01-13 | 深圳市宏电技术股份有限公司 | Internet of things equipment management method, device and system |
| CN113541320B (en) * | 2021-09-17 | 2022-01-25 | 广东电网有限责任公司东莞供电局 | Power grid power failure and restoration visual monitoring method and system and storage medium |
| CN114124717B (en) * | 2021-09-28 | 2024-03-08 | 国网黑龙江省电力有限公司绥化供电公司 | Distribution network line topology visual monitoring method based on Internet of things technology |
| CN114757005A (en) * | 2022-04-15 | 2022-07-15 | 广东电网有限责任公司 | Digital power grid distributed processing method and system based on cloud platform |
| CN114936442B (en) * | 2022-07-22 | 2022-12-09 | 国网江西省电力有限公司电力科学研究院 | System and method for accurately positioning power distribution network equipment and forming topological graph |
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