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IEC61850 reconnection acceleration method

An IEC61850, consistent technology, applied in the field of IEC61859 communication, can solve the problems of time-consuming and time-consuming clients, and achieve the effect of reducing time-consuming and improving efficiency

Active Publication Date: 2019-06-14
NR ELECTRIC CO LTD +1
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  • Claims
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Problems solved by technology

[0003] In the communication process between the IEC61850 client and the server, it is a time-consuming process for the client to read the data model through the message. For a device with a large ICD (device capability description file), it usually takes more than 5 minutes. During the operation of setting value setting-device restart-reconnection frequently, it takes a lot of time to repeatedly read the data model

Method used

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  • IEC61850 reconnection acceleration method
  • IEC61850 reconnection acceleration method
  • IEC61850 reconnection acceleration method

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Embodiment Construction

[0031] The present invention will be further described below. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0032] see figure 1 , the IEC61850 connection acceleration method of the present invention again, the implementation process is as follows:

[0033] 1) Define the template description language description file (TDL description file) format suitable for forming the IEC61850 communication data model; such as figure 2 As shown, the TDL description file adopts XML hierarchical format, according to the six layers of Server (server)-LD (logical device)-LN (logical node instance)-FC (functional constraint)-D0 (data object)-DA (data attribute) Structural division.

[0034] Preferably, the storage attributes of LN and FC include name (name), type (type), refrence (layer reference name), typeID (ASN.1 codec type number), strType (TDL description ...

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Abstract

The invention discloses an IEC61850 reconnection acceleration method which specifically comprises the following steps: defining a TDL description file format; after the device is powered on or the device capability description file is downloaded, the device side IEC61850 software forms the binary content described by the TDL in the memory, and stores the corresponding MD5 value; when the PC clientsoftware is connected with the device for the first time, a standard IEC61850 communication protocol and a flow reading data model are adopted to form and store a TDL description file and an MD5 value; when the device is connected again, the MD5 value of the device side is obtained through the private protocol, whether the two ends are consistent or not is compared, if yes, the local TDL description file is read after IEC61850 connection is successful, the data model is reconstructed, and a message for reading the data model is not issued any more. The method can effectively reduce the reconnection time and improve the debugging efficiency for the device which needs frequent debugging and disconnection and is large in model.

Description

technical field [0001] The invention relates to an IEC61850 reconnection acceleration method, which belongs to the technical field of IEC61859 communication. Background technique [0002] A unified information interface is required between relay protection devices to achieve interoperability between devices. The IEC61850 standard was formulated under the background of this requirement. The purpose is to provide a widely usable and powerful communication protocol that enables Various devices can achieve interoperability by using this protocol. The content of IEC61850 not only covers the communication protocols of the process layer and station control layer, but also covers the modeling of data and devices, methods of engineering integration and implementation, consistency requirements and testing, etc., which can effectively guide the development of control and protection systems. Engineering implementation. [0003] In the communication process between the IEC61850 client ...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L29/08
Inventor 周磊陈宏君文继锋王自成陈佳胜徐睿曾凯顾熹
Owner NR ELECTRIC CO LTD
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