IEC 61850 is an international standard defining communication protocols for
intelligent electronic devices at
electrical substations. It is a part of the
International Electrotechnical Commission
The International Electrotechnical Commission (IEC; ) is an international standards organization that prepares and publishes international standards for all electrical, electronics, electronic and related technologies. IEC standards cover a va ...
's (IEC)
Technical Committee 57 reference architecture for
electric power
Electric power is the rate of transfer of electrical energy within a electric circuit, circuit. Its SI unit is the watt, the general unit of power (physics), power, defined as one joule per second. Standard prefixes apply to watts as with oth ...
systems. The abstract data models defined in IEC 61850 can be mapped to a number of protocols. Current mappings in the standard are to
Manufacturing Message Specification (MMS),
GOOSE
A goose (: geese) is a bird of any of several waterfowl species in the family Anatidae. This group comprises the genera '' Anser'' (grey geese and white geese) and '' Branta'' (black geese). Some members of the Tadorninae subfamily (e.g., Egy ...
(Generic Object Oriented System Event)
ee section 3, Terms and definitions, term 3.65 on page 14 SV (Sampled Values) or SMV (Sampled Measure Values), and so on to
web services
A web service (WS) is either:
* a service offered by an electronic device to another electronic device, communicating with each other via the Internet, or
* a server running on a computer device, listening for requests at a particular port over a n ...
. In the previous version of the standard, GOOSE stood for "Generic Object Oriented Substation Event", but this old definition is still very common in IEC 61850 documentation.
These protocols can run over
TCP/IP
The Internet protocol suite, commonly known as TCP/IP, is a framework for organizing the communication protocols used in the Internet and similar computer networks according to functional criteria. The foundational protocols in the suite are ...
networks or substation
LANs using high speed switched
Ethernet
Ethernet ( ) is a family of wired computer networking technologies commonly used in local area networks (LAN), metropolitan area networks (MAN) and wide area networks (WAN). It was commercially introduced in 1980 and first standardized in 198 ...
to obtain the necessary response times below four milliseconds for protective relaying.
Features
IEC 61850 features include:
# ''
Data modelling'' – Primary process objects as well as protection and control functionality in the substation is modelled into different standard logical nodes which can be grouped under different logical devices. There are logical nodes for data/functions related to the logical device (''LLN0'') and physical device (''LPHD'').
# ''Reporting schemes'' – There are various reporting schemes (''BRCB & URCB'') for reporting data from server through a server-client relationship which can be triggered based on pre-defined trigger conditions.
# ''Fast transfer of events'' –
Generic Substation Events (''GSE'') are defined for fast transfer of event data for a peer-to-peer communication mode. This is again subdivided into ''GOOSE'' &
''GSSE''.
# ''Setting groups'' – The setting group control Blocks (''SGCB'') are defined to handle the setting groups so that user can switch to any active group according to the requirement.
# ''Sampled data transfer'' – Schemes are also defined to handle transfer of sampled values using Sampled Value Control blocks (''SVCB'')
# ''Commands'' – Various command types are also supported by IEC 61850 which include direct & select before operate (SBO) commands with normal and enhanced securities.
# ''Data storage'' –
Substation Configuration Language (''SCL'') is defined for complete storage of configured data of the substation in a specific format.
See also
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References
External links
Detailed Introduction to IEC 61850IEC 61850 Technical Issues websiteUCA International Users GroupIEC61850: A Protocol with Powerful PotentialSmart High Voltage Substation Based on IEC 61850 Process Bus and IEEE 1588 Time SynchronizationTest and evaluation system for multi-protocol sampled value protection schemes by Dr. David M.E. Ingram
{{Automation protocols
Electric power
61850
Smart grid