Graphical display method of transparent LED display screen based on intelligent substation secondary circuit

Abstract

The invention relates to the field of design of intelligent substations and particularly relates to a graphical display method of a transparent LED display screen based on an intelligent substation secondary circuit. An LED transparent screen is installed on the upper portion in a screen cabinet of the intelligent substation. The SCD configuration file is loaded and analyzed through the intelligent switch; sV / GOOSE message configuration information of each IED is extracted; the industrial personal computer receives SV / GOOSE message configuration information from the intelligent switch; communication link message and physical connection and communication link and function loop matching are carried out on each IED; the matching result is transmitted to the network analysis equipment; the network analysis equipment is accessed to a real-time network of the intelligent substation to carry out online analysis and proofreading on SV / GOOSE message configuration information; an analysis resultis sent back to the industrial personal computer for graphical processing and then is transmitted to the LED transparent screen; the secondary circuit of the intelligent substation is displayed in agraphical display mode through the LED transparent screen, the LED transparent screen is used for replacing a traditional displayer to display the secondary circuit, and transformation and upgrading of a traditional station and popularization of a secondary circuit visualization scheme are facilitated.

Description

technical field [0001] The invention relates to the design field of intelligent substations, and specifically refers to a graphical display method of a transparent LED display screen based on a secondary circuit of an intelligent substation. Background technique [0002] The smart substation uses the IEC61850 standard as the basic communication network. Through this structure, the digital information can be effectively collected, the networked transmission of relevant data information can be realized, and the intelligent control of the operating system can be realized. The physical loop and the logical loop model together constitute the The complete secondary circuit model of the smart substation; in the traditional secondary system of the substation, the connection between the equipment is in the form of cables, and the detection of the entire substation is based on the design drawings and physical connections, which has the advantages of simple design and easy control With...

AI Technical Summary

Problems solved by technology

[0002] The smart substation uses the IEC61850 standard as the basic communication network. Through this structure, the digital information can be effectively collected, the networked transmission of relevant data information can be realized, and the intelligent control of the operating system can be realized. The physical loop and the logical loop model together constitute the The complete secondary circuit model of the smart substation; in the traditional secondary system of the substation, the connection between the equipment is in the form of cables, and the detection of the entire substation is based on the design drawings and physical connections, which has the advantages of simple design and easy control With the development of smart substations, smart substations adopt the IEC61850 standard system so that the devices are no longer connected by cables, but transmit SV / GOOSE signals through digital signals , and there may be data transmission and connection of multiple devices on one optical fiber. Therefore, the secondary circuit of the smart substation has changed from the previous visible and tangible cable connection to the network structure of digital signals. Multiple SV / GOOSE The signal may exist on an optical fiber, and a virtual circuit is constructed between multiple devices in the form of data flow. It is difficult to visually view the information transmission circuit in the secondary circuit of the smart substation. The information transmission of the system mostly relies on the transmission of Ethernet, and the communication between devices The connection is also realized through the virtual terminal, which is no longer intuitive and visible, which greatly increases the difficulty of the operation and maintenance personnel's work

[0003] In recent years, companies in various domestic network provinces have carried out pilot projects of digital substations (smart substations). At present, digital substations have developed rapidly, but the problem of operation and maintenance has always been a problem; the process layer network of digital substations lacks effective management and monitoring means However, in the operation of digital substation, the invisible, unknowable, and uncontrollable problems of the virtual secondary circuit at the process level still exist, especially the lack of means for local display of the secondary circuit. There is no convenient and intuitive detection method for the reliability of the secondary circuit; at present, the graphical display of the virtual secondary circuit in the smart substation mainly adopts the method of connecting an external notebook or using an industrial computer plus a display; The network causes problems such as unsafe factors. The latter method must use a monitor, and the monitor occupies a relatively large position in the screen cabinet, generally the height of the screen cabinet is 6U to 8U. It is inconvenient to use and not intuitive, which will greatly Reduce the use density of screen cabinets and other issues, especially in switch screen cabinets that require high density and no display, it will not be possible

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