IEC 61850
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's (IEC)
Technical Committee 57 reference architecture for electric power systems.[1] 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 (Generic Object Oriented System Event) [see
section 3, Terms and definitions, term 3.65 on page 14[2]], SV (Sampled Values) or SMV (Sampled
Measure Values),[3] and so on to web services. In the previous version of the standard, GOOSE stood for
"Generic Object Oriented Substation Event",[4][5] but this old definition is still very common in IEC
61850 documentation.[6] These protocols can run over TCP/IP networks or substation LANs using high
speed switched Ethernet to obtain the necessary response times below four milliseconds for protective
relaying.
Features
IEC 61850 features include:
1. 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).
2. 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 predefined trigger conditions.
3. 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.
4. 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.
5. Sampled data transfer – Schemes are also defined to handle transfer of sampled values
using Sampled Value Control blocks (SVCB)
6. Commands – Various command types are also supported by IEC 61850 which include direct
& select before operate (SBO) commands with normal and enhanced securities.
7. Data storage – Substation Configuration Language (SCL) is defined for complete storage of
configured data of the substation in a specific format.
See also
Conformance testing – Type of testing for standards, contracts and regulations
DNP3 – Computer network protocol
IEC 60870-5-104 – Telecontrol standard
IEC/IEEE 61850-9-3 – International standard for time synchronisation
IEC 61968 – Series of communication protocol standards
IEC 61970 – A standard which deals with the application program interfaces for energy
management systems (EMS)
Precision Time Protocol – Network time synchronization protocol
References
1. "IEC 61850:2021 SER" (https://webstore.iec.ch/publication/6028). WebStore.IEC.ch.
Retrieved 10 November 2021.
2. "IEC TS 61850-2:2019" (https://webstore.iec.ch/publication/59656). WebStore.IEC.ch.
Retrieved 10 November 2021.
3. "IEC 61850-9-2:2011+AMD1:2020 CSV" (https://webstore.iec.ch/publication/66549).
WebStore.IEC.ch. Retrieved 10 November 2021.
4. "IEC TS 61850-2:2003" (https://webstore.iec.ch/publication/6009). WebStore.IEC.ch.
Retrieved 10 November 2021.
5. "IEC 61850-8-1:2011" (https://webstore.iec.ch/publication/6021). WebStore.IEC.ch.
Retrieved 10 November 2021.
6. "IEC 61850-8-1:2011+AMD1:2020 CSV" (https://webstore.iec.ch/publication/66585).
WebStore.IEC.ch. Retrieved 10 November 2021.
External links
Detailed Introduction to IEC 61850 (http://seclab.illinois.edu/wp-content/uploads/2011/03/iec
61850-intro.pdf)
IEC 61850 Technical Issues website (http://iec61850.tissue-db.com/parts.mspx)
UCA International Users Group (http://www.ucaiug.org/default.aspx)
IEC61850: A Protocol with Powerful Potential (http://www.prosoft-technology.com/content/do
wnload/4576/32664/file/IEC61850_A-Protocol-with-Powerful-Potential.pdf)
Smart High Voltage Substation Based on IEC 61850 Process Bus and IEEE 1588 Time
Synchronization (https://ieeexplore.ieee.org/document/5622092)
Test and evaluation system for multi-protocol sampled value protection schemes by Dr.
David M.E. Ingram (http://eprints.qut.edu.au/41257)
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