Converter station cloud end intelligent auto-negotiation access method

Abstract

The invention relates to a converter station cloud end intelligent auto-negotiation access method, and belongs to the technical field of data access. And when the side end needs to access the common equipment, the side end sends a configuration request to the master station system located at the cloud end, and the master station system searches configuration parameters of the currently accessed common equipment by utilizing the constructed equipment template library according to the received configuration request and downloads the equipment information stored in the master station system to the side end. And when the side end needs to access the intelligent device, the side end sends a query request to the cloud end, the cloud end retrieves and identifies the intelligent device needing to access by using the constructed intelligent device template library, queries a corresponding device access specification, and downloads or upgrades a corresponding device access app from the cloud end according to the current app access condition of the side end. Compared with the prior art, the problem that the data access efficiency is not high due to the fact that manual parameter configuration is needed and equipment needs to be downloaded or upgraded is solved.

Description

Technical Field

[0001] The present invention relates to an intelligent self-negotiation access method for the cloud-edge-end of a converter station, belonging to the field of data access. Background Art

[0002] Traditional converter station management models are usually based on centralized control and monitoring systems. In this mode, the operation and monitoring of the converter station are both the responsibility of a central control room or control center. This control room collects data on various parts of the converter station, including current, voltage, and frequency, through monitoring devices and sensors. At the same time, operators control the operation of the converter station according to the system status and predetermined instructions. Traditional converter station management models also involve regular maintenance and inspection work. Operating personnel regularly check the status of each device and perform necessary maintenance and repairs. In addition, operating personnel also conduct some routine safety checks to ensure the safe and reliable operation of the converter station.

[0003] However, with the continuous development of technology, modern converter station management models are gradually replacing traditional models. Modern management models pay more attention to automation and intelligence, and real-time monitor and control the operation status of the converter station through advanced monitoring systems, network communication technologies, and data analysis tools, improving energy transmission efficiency and reliability. In addition, predictive and optimization algorithms are used to optimize the operation plan, reducing energy consumption and costs.

[0004] The traditional converter station management model based on centralized control and monitoring systems requires manual parameter configuration. The modern management model requires manual prior judgment on whether the device is gateway-accessed. The subsequent processing methods for gateway-accessed devices and non-gateway-accessed devices are different, and it is also necessary to manually download or upgrade the device according to the actual situation, which will lead to the problem of low data access efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide an intelligent self-negotiation access method for the cloud-edge-end of a converter station, which is used to solve the problems in the prior art that manual parameter configuration is required, and downloading or upgrading the device leads to low data access efficiency.

[0006] To achieve the above purpose, the technical solution provided by the present invention is:

[0007] The present invention provides an intelligent self-negotiation access method for the cloud-edge-end of a converter station, and the intelligent self-negotiation access method includes the following steps:

[0008] 1) When the edge side needs to connect to ordinary devices, the edge side sends a configuration request to the master station system located in the cloud. The master station system, according to the received configuration request, uses the constructed device template library to search for the configuration parameters of the currently connected ordinary devices, and downloads the device information stored in the master station system to the edge side. The device template library is a standard function model file or a standard function model file implemented by a third party.

[0009] 2) When the edge side needs to connect to intelligent devices, the edge side sends a query request to the cloud. The cloud uses the constructed intelligent device template library to retrieve and identify the intelligent devices to be connected, queries the corresponding device access specifications, and then downloads or upgrades the corresponding device access app from the cloud according to the current situation of the edge side connecting to the app.

[0010] The present invention uses the constructed device template library and intelligent device template library to search for the devices to be connected. When connecting ordinary devices, the constructed device template library is used to search for the configuration parameters of the currently connected ordinary devices. When connecting intelligent devices, the constructed intelligent device template library is used to retrieve and identify the intelligent devices to be connected, and the corresponding device access specifications are queried. The above process does not require manual participation and can be automatically configured, realizing the automatic access of data. Compared with the prior art, the present invention solves the problems of low data access efficiency caused by manual parameter configuration and the need to download or upgrade devices.

[0011] Further, the edge side includes a sub-station system and an edge gateway.

[0012] The edge side of the present invention includes two types, namely a sub-station system and an edge gateway, with a relatively wide applicability.

[0013] Further, the intelligent device template library is constructed based on product domain knowledge and point table intelligent recognition technology.

[0014] The intelligent device template library of the present invention is constructed based on product domain knowledge and point table intelligent recognition technology, and the construction method is simple and easy to implement.

[0015] Further, the intelligent self-negotiation access method further includes that after the sub-station system of the edge side models the device model, the model information is uploaded to the sub-station system of the edge side, and other sub-station systems search and download the data model of the device through the cloud.

[0016] In the present invention, after the sub-station system of the edge side models the device model, the model information is uploaded to the sub-station system of the edge side, and other sub-station systems can search and download the data model of the device through the cloud, saving the time for other sub-station systems to find data. Compared with other non-cloud methods, the present invention is convenient and reliable.

[0017] Further, the intelligent self-negotiating access method further includes that the edge gateway at the edge side obtains the communication model of the device from the cloud or the edge side through the communication model interface of the project.

[0018] Further, the intelligent self-negotiating access method further includes that after the intelligent device and the edge side establish communication, data format conversion is performed according to the data model defined by relevant standards, and the protocol data of different terminals is converted into a unified format, and then according to the data transmission rules defined by relevant standards, the interaction and storage between the edge side and the cloud side data are carried out.

[0019] Further, the protocols include Protocol 101, Protocol 103, Protocol 104, and Modbus protocol.

[0020] The protocol of the present invention includes Protocol 101, Protocol 103, Protocol 104, and Modbus protocol, supporting a variety of protocol types. Brief Description of the Drawings

[0021] Figure 1 is a flowchart of the intelligent self-negotiating access method for the cloud-edge side of the converter station of the present invention. Detailed Embodiments

[0022] To make the objectives, technical solutions, and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the drawings and embodiments.

[0023] For the intelligent self-negotiating access method for the cloud-edge side of the converter station proposed by the present invention, the substation system at the edge side and the edge gateway at the edge side respectively use the constructed device template library and intelligent device template library to search for the devices to be accessed, so as to realize the access of data between the cloud side and the edge side. The present invention solves the problems in the prior art that manual parameter configuration is required, and data access efficiency is not high due to the need to download or upgrade devices.

[0024] Embodiment of the intelligent self-negotiating access method for the cloud-edge side of the converter station:

[0025] The process of the intelligent self-negotiating access method for the cloud-edge side of the converter station of the present invention is as Figure 1 shown. Communication is carried out between the cloud platform (referred to as the cloud side) of the present invention and the edge side. The master station system is located on the cloud side. The edge side includes two types: the substation system and the edge gateway. The specific description of the substation system at the edge side needing to access ordinary devices and the edge gateway at the edge side needing to access intelligent devices is as follows:

[0026] 1. The substation system at the edge side needs to access ordinary devices

[0027] When the sub-station system at the edge needs to connect to ordinary devices, the sub-station system at the edge sends a configuration request to the master station system located in the cloud. The master station system, according to the received configuration request, uses the set device template library to search for the configuration parameters of the currently connected ordinary devices, and downloads the device information stored in the master station system to the sub-station system at the edge. The device template library is a standard functional model file or a standard functional model file implemented by a third party. The device template library is created for ordinary devices. After the sub-station system at the edge models the device model, it uploads the model information to the sub-station system at the edge. Other sub-station systems search and download the data model of this device through the cloud. Ordinary devices refer to traditional power devices, such as transformers, generators, and switchgear. Ordinary devices are essential in the power industry. Ordinary devices are used for the traditional operation and management of the power system and have stable and reliable performance.

[0028] 2. The edge gateway at the edge needs to connect to intelligent devices

[0029] When the edge gateway at the edge needs to connect to intelligent devices, the edge gateway at the edge sends a query request to the cloud. The cloud uses the constructed intelligent device template library to retrieve and identify the intelligent devices to be connected, and queries the corresponding device access specifications. The intelligent device template library is constructed based on product domain knowledge and point table intelligent recognition technology. Then, according to the current situation of the edge gateway at the edge accessing the app, it downloads or upgrades the corresponding device access app from the cloud. The edge gateway at the edge obtains the communication model of this device from the cloud or the edge side through the communication model interface of the project. The communication model interface is used to obtain the device communication model. Intelligent devices refer to power devices based on emerging technologies, such as smart meters, intelligent power grid regulation devices, and intelligent distribution devices. Intelligent devices achieve intelligent monitoring, management, and control of the power system by adopting advanced technologies of computers, communications, and sensors.

[0030] After the intelligent device and the edge establish communication, data format conversion is performed according to the data model defined by relevant standards, and the protocol data of different terminals is converted into a unified format. The data format conversion process includes syntax analysis, semantic understanding, and machine translation. Then, according to the data transmission rules defined by relevant standards, the interaction and storage between the edge and the cloud data are carried out. In this embodiment, the protocols include IEC 60870-5-101 protocol, IEC 60870-5-103 protocol, IEC 60870-5-104 protocol, and Modbus protocol. In this embodiment, the relevant standard is the "Southern Power Grid Cloud-Edge Fusion Intelligent Dispatching Operation Platform System Technical Standard".

Claims

1. A cloud-edge-terminal intelligent self-negotiation access method for a converter station, characterized in that, the intelligent self-negotiation access method includes the following steps: 1) When the edge terminal needs to access a general device, the edge terminal sends a configuration request to the master station system located in the cloud. The master station system searches for the configuration parameters of the currently accessed general device by using the constructed device template library, and downloads the device information stored in the master station system to the edge terminal. The device template library is a standard function model file or a standard function model file implemented by a third party; 2) When the edge terminal needs to access an intelligent device, the edge terminal sends a query request to the cloud. The cloud retrieves and identifies the intelligent device to be accessed by using the constructed intelligent device template library, queries the corresponding device access specification, and then downloads or upgrades the corresponding device access app from the cloud according to the current situation of the edge terminal accessing the app.

2. The cloud-edge-terminal intelligent self-negotiation access method according to claim 1, characterized in that, the edge terminal includes a substation system and an edge gateway.

3. The cloud-edge-terminal intelligent self-negotiation access method according to claim 1, characterized in that, the intelligent device template library is constructed based on product domain knowledge and point table intelligent recognition technology.

4. The cloud-edge-terminal intelligent self-negotiation access method according to claim 2, characterized in that, the intelligent self-negotiation access method further includes that after the substation system of the edge terminal models the device model, the model information is uploaded to the substation system of the edge terminal, and other substation systems search and download the data model of the device through the cloud.

5. The cloud-edge-terminal intelligent self-negotiation access method according to claim 2, characterized in that, the intelligent self-negotiation access method further includes that the edge gateway of the edge terminal obtains the communication model of the device from the cloud or the edge side through the communication model interface of the project.

6. The cloud-edge-terminal intelligent self-negotiation access method according to claim 1, characterized in that, the intelligent self-negotiation access method further includes that after the intelligent device and the edge terminal establish communication, data format conversion is performed according to the data model defined by relevant standards, and the protocol data of different terminals is converted into a unified format, and then according to the data transmission rules defined by relevant standards, the interaction and storage between the edge terminal and the cloud data are performed.

7. The cloud-edge-terminal intelligent self-negotiation access method according to claim 6, characterized in that, the protocol includes IEC 60870-5-101 protocol, IEC 60870-5-103 protocol, IEC 60870-5-104 protocol and Modbus protocol.

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