Standardised communications in substations

Shephard, B.; Janssen, Marco C.; Schubert, Mark

doi:10.1049/cp:20010152

Cited by 6 publications

(2 citation statements)

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“…The second is analog sampling information, such as current and voltage sampling information. According to the classification of substation information and communication delay requirements of relay protection related information in IEC 61850, any information must be delivered reliably within 4 ms [5][6][7][8][9] .…”

Section: Information Type and Communication Requirements In Wide Areamentioning

confidence: 99%

Communication service model for wide area protection system based on IEC 61850

Cong

Pan

Gao

et al. 2008

Trans. Tianjin Univ.

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Abstract：In order to meet the requirements of information exchange varieties and manners in wide area protection system, a communication service model based on IEC 61850 is proposed. This service model can realize communication consistency and cooperation between different types of devices. Furthermore, the communication reliability and time delay performance are guaranteed to meet the requirements of relay protection from the upper layer. Message structure of generic substation event (GSE) and its communication mechanism are discussed. General methods to communicate digital information by generic substation status event (GSSE) and communicate analog sampling information by sampling analog value (SAV) of GSE are proposed.Keywords：wide area protection；IEC 61850；communication；service model Wide area protection system has increasingly become a new study area. Though there are different understandings about the function and configuration in wide area protection system, one aspect is certain that a high performance communication system is necessary to obtain information of power system in wide area. There are different requirements to communication system performance according to different functions completed by wide area protection system [1] . For example, relay protection and some automatic control systems have a high requirement in the operation reliability and time delay, so to the communication system, while some other automatic control systems have lower requirements in time delay, their requirements to communication system are accordingly low. A communication system that can meet different requirements is needed to exchange all kinds of messages. The communication system mentioned here includes not only communication devices and network, but also communication protocol, service and so on [2] . There is no universal data exchange model in the present power communication system. And most communication protocol cannot meet some high requirements in communication time delay and reliability. The usage of usual point-to-point communication model and traditional LAN communication technology cannot guarantee time delay and reliability of synchronous information transmission in wide area [3,4] .Communication service model for wide area protection system based on IEC 61850 is therefore studied. Message structure of generic substation event (GSE), its communication mechanism and the service model are discussed. The focus is to propose general methods to communicate digital information by generic substation status event (GSSE) and communicate analog sampling information by sampling analog value(SAV). Information type and communication requirements in wide area protection systemWide area protection system should provide with the traditional functions of three defensive lines. Moreover, it can cooperate with the functions of the three defensive lines, which operate independently in a normal way. The implementation of all the functions must be based on a powerful communication system. Different functions in wide area protec...

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Section: Information Type and Communication Requirements In Wide Areamentioning

confidence: 99%

Communication service model for wide area protection system based on IEC 61850

Cong

Pan

Gao

et al. 2008

Trans. Tianjin Univ.

View full text Add to dashboard Cite

show abstract

“…IEDs have become the common features of substations since the last two decades. Most recent IEDs are sophisticated devices that are capable of communicating with number of vendors which will ultimately lead to the inter-operability between devices from different vendors [50]. Because of these IEDs, the substation automation which relies on the standardization of communication and development of common protocols have become possible.…”

Section: Communication Protocolsmentioning

confidence: 99%