| IEC 61850-based intelligent substation increase process level network and equipment, the upload information from devices and interactive information between devices increase greatly because that information of process level device transmits through fiber-optic network, so that the client can get equipment status accurately. However, in china, the use of information technology for smart substation is still remain at the level of integrated automation substation. For example, monitoring, network packet analyzer, etc, which are expected for having intelligent analysis for information, use the information in this way that capture the information and display extracted information. Extracting the information and presenting information by bar can not reflect the goal of intelligent information analysis in intelligent substation, wasting valuable information resource.To take advantage of all packets information in the smart substation communication network transmission, intelligent substation online information integrated application system was developed. This article describes basic components of the system and test kit needed to test the system. Graphical display module and GOOSE/SV parsed kit were introduced as basic components. Process level communication test kit, station level MMS client and Station level MMS server used for test station level communication were introduced as test kit.The work of this paper includes:1. Study the technology in intelligent substation, including secondary system communication network structure, communication model between devices and equipment and ACSI information model.2. Study the method for intelligent substation relay function graphical display Sugiyama algorithm is used for visualization. Develop graphical display module for functional analysis of secondary system in smart substation.3. Study GOOSE/SV transport protocol in IEC 61850 standard to achieve encode and decode GOOSE/SV packets. Process level communications test kit is developed with Qt application framework.4. Study MMS transmission protocol in IEC 61850 standard to achieve ACSI information map to MMS protocol. Research ASN.1 syntax specification to encode and decode MMS PDU. Station level MMS client and Station level MMS server is developed with the Qt application framework.Testing components introduced in this article are possible to simulate real substation communication network for all types of packets, used to test the smart substation online information integrated application system, components also can be used as an independent packet analysis tools for construction and maintenance in intelligent substation. Graphical display module for functional analysis of secondary system achieve to display the results of the analysis of various online information by "graphic+text+process description+other details", so that operation and maintenance personnel can visually comprehensive understanding of the device implementation and operation status. |
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