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Method and apparatus for lightweight data transmission between substation and master station

A transmission method and technology of a transmission device, which are applied in the field of data transmission, can solve the problems of complex coding of communication messages and have not yet been applied on a large scale, and achieve the effect of reducing the number of transmitted bytes, realizing seamless connection, and reducing the demand for communication bandwidth.

Inactive Publication Date: 2017-12-26
CHINA ELECTRIC POWER RES INST +2
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Problems solved by technology

Although IEC 61850-90-2 has been used for data transmission between substations and master stations, the prototype has been implemented, but the communication message coding is relatively complicated and has not yet been applied on a large scale

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  • Method and apparatus for lightweight data transmission between substation and master station
  • Method and apparatus for lightweight data transmission between substation and master station
  • Method and apparatus for lightweight data transmission between substation and master station

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Embodiment Construction

[0063] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0064] The embodiment of the present invention uses CIM / E to describe the entity object of the substation data model. The substation telecontrol gateway and the front-end processor of the main station import the substation data model based on the CIM / E standard to establish data caches respectively, and cooperate with the use of lightweight reporting. The file serialization mechanism is used for data transmission between the substation and the main station, and supports the forward and backward compatibility of the transmitted data content. In this way, the problems of large bandwidth occupied by transmission of structured text data between the substation and the main station, complex configuration and maintenance, and difficulty in direct application of data are solved, and flexible and efficient data transmission between the substation and the main station i...

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Abstract

The invention provides a method and apparatus for lightweight data transmission between a substation and a master station. A transformer substation data model is described by adopting CIM / E; a transformer substation data model description file is generated; the transformer substation data model description file is converted into an interface file of the transformer substation data model; and finally transmission of the data between the transformer substation and the master station is realized according to the interface file of the transformer substation data model. According to the technical scheme, the transformer substation data model is generated based on the CIM / E; bidirectional association indexing of the transformer substation data model and a data exchange model is supported; the transformer substation data model only contains an entity object; the CIM / E adopts a flat structure, so that the size of the transformer substation data model description file is reduced; and in the process of transmitting the data between the transformer substation and the master station based on the interface file of the transformer substation data model, the transmission byte number is reduced by about 30%-90% in comparison with that in direct transmission of a structured text, the demand of the transmission of the data between the transformer substation and the master station on the communication bandwidth is reduced, and the lightweight transmission is realized.

Description

technical field [0001] The invention relates to data transmission technology, in particular to a lightweight data transmission method and device between a substation and a main station. Background technique [0002] With the development of smart grid, structured text is increasingly used for information model exchange of substations or master stations. Compared with traditional communication protocols such as IEC60870-5-101 / 104, standards such as IEC 61850 and CIM / E The use of structured text for model description and communication coding has better self-description and self-explanation, and the transmission of power grid equipment operation information has more dimensions, which improves the observability and controllability of the power grid. However, the price is that the transmission of the "four remote" information such as telemetry, remote signaling, and remote control with the same number of points requires more message bytes, which increases the bandwidth occupation ...

Claims

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Application Information

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IPC IPC(8): G06F9/44G06F9/45G06F17/50
CPCG06F8/31G06F8/41G06F30/20
Inventor 吴艳平窦仁晖姚志强耿明志任浩袁浩
Owner CHINA ELECTRIC POWER RES INST
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