IEC61850 - AbsoluteAstronomy.com

IEC 61850 is a standard for the design of electrical substation

Electrical substation

A substation is a part of an electrical generation, transmission, and distribution system. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions...

automation. IEC 61850 is a part of the International Electrotechnical Commission's

International Electrotechnical Commission

The International Electrotechnical Commission is a non-profit, non-governmental international standards organization that prepares and publishes International Standards for all electrical, electronic and related technologies – collectively known as "electrotechnology"...

(IEC) Technical Committee 57

IEC TC 57

IEC Technical Committee 57 is one of the technical committees of the International Electrotechnical Commission .TC 57 is responsible for development of standards for information exchange for power systems and other related systems including Energy Management Systems, SCADA, distribution automation...

(TC57) reference architecture for electric power

Electric power

Electric power is the rate at which electric energy is transferred by an electric circuit. The SI unit of power is the watt.-Circuits:Electric power, like mechanical power, is represented by the letter P in electrical equations...

systems. The abstract data models defined in IEC 61850 can be mapped to a number of protocols. Current mappings in the standard are to MMS (Manufacturing Message Specification

Manufacturing Message Specification

Manufacturing Message Specification is an international standard dealing with messaging system for transferring real time process data and supervisory control information between networked devices and/or computer applications. The standard is developed and maintained by the ISO Technical...

), GOOSE

Goose

The word goose is the English name for a group of waterfowl, belonging to the family Anatidae. This family also includes swans, most of which are larger than true geese, and ducks, which are smaller....

, SMV, and soon to Web Services. These protocols can run over TCP/IP networks and/or substation LAN

Län

Län and lääni refer to the administrative divisions used in Sweden and previously in Finland. The provinces of Finland were abolished on January 1, 2010....

s using high speed switched Ethernet to obtain the necessary response times of for protective relaying..

Standard Documents

IEC 61850 consists of the following parts detailed in separate IEC 61850 standard documents

IEC 61850-1: Introduction and overview
IEC 61850-2: Glossary
IEC 61850-3: General requirements
IEC 61850-4: System and project management
IEC 61850-5: Communication requirements for functions and device models
IEC 61850-6: Configuration language for communication in electrical substations related to IEDs - Ed.2
IEC 61850-7: Basic communication structure for substation and feeder equipment
- IEC 61850-7-1: Principles and models - Ed.2
- IEC 61850-7-2: Abstract communication service interface (ACSI) - Ed.2
- IEC 61850-7-3: Common Data Classes - Ed.2
- IEC 61850-7-4: Compatible logical node classes and data classes - Ed.2
- IEC 61850-7-10: Communication networks and systems in power utility automation - Requirements for web-based and structured access to the IEC 61850 information models [Approved new work]
IEC 61850-8: Specific communication service mapping (SCSM)
- IEC 61850-8-1: Mappings to MMS
  Manufacturing Message Specification
  Manufacturing Message Specification is an international standard dealing with messaging system for transferring real time process data and supervisory control information between networked devices and/or computer applications. The standard is developed and maintained by the ISO Technical...
  
  (ISO/IEC9506-1 and ISO/IEC 9506-2) - Ed.2
IEC 61850-9: Specific communication service mapping (SCSM)
- IEC 61850-9-1: Sampled values over serial unidirectional multidrop point to point link
- IEC 61850-9-2: Sampled values over ISO/IEC 8802-3
  IEEE 802.3
  IEEE 802.3 is a working group and a collection of IEEE standards produced by the working group defining the physical layer and data link layer's media access control of wired Ethernet. This is generally a local area network technology with some wide area network applications...
  
  - Ed.2
IEC 61850-10: Conformance testing
Conformance testing
Conformance testing or type testing is testing to determine whether a product or system meets some specified standard that has been developed for efficiency or interoperability....

History

Multiple protocols exist for substation automation, which include many proprietary protocols with custom communication links. Interoperation of devices from different vendors would be an advantage to users of substation automation devices. An IEC project group of about 60 members from different countries worked in three IEC working groups from 1995. They responded to all the concerns and objectives and created IEC 61850. The objectives set for the standard were:

A single protocol for complete substation considering modeling of different data required for substation.
Definition of basic services required to transfer data so that the entire mapping to communication protocol can be made future proof.
Promotion of high interoperability between systems from different vendors.
A common method/format for storing complete data.
Define complete testing required for the equipments which conforms to the standard.

IEC 61850 Features

IEC 61850 features include:

Data Modeling
Data modeling
Data modeling in software engineering is the process of creating a data model for an information system by applying formal data modeling techniques.- Overview :...

— 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
Goose
The word goose is the English name for a group of waterfowl, belonging to the family Anatidae. This family also includes swans, most of which are larger than true geese, and ducks, which are smaller....

& 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.

IEC 61850 - Related Developments

IEC 61850-7-410 — Hydroelectric Power Plants - Communication for monitoring and control. [Published]
IEC 61850-7-420 — Communications systems for Distributed Energy Resources (DER) - Logical nodes [Published]
IEC 61850-7-500 — Use of logical nodes to model functions of a substation Automation system. [Approved New Work]
IEC 61850-7-510 — Use of logical nodes to model functions of a Hydro Power Plant. [Approved New Work]
IEC 61850-90-1 — Use of IEC 61850 for the communication between substations [Published]
IEC 61850-90-2 — Use of IEC 61850 for the communication between control centers and substations [Approved New Work]
IEC 61850-90-3 — Using IEC 61850 for Condition Monitoring [Approved New Work]
IEC 61850-90-4 — IEC 61850 - Network Engineering Guidelines [Approved New Work]
IEC 61850-90-5 — Use of IEC 61850 to transmit synchrophasor information according to IEEE C37.118 [Approved New Work]
IEC 61850-80-1 — Guideline to exchanging information from a CDC-based data model using IEC 60870-5-101 or IEC 60870-5-104 [Published]

IEC 61400-25
IEC 61400-25
International standard IEC 61400-25 provides uniform information exchange for monitoring and control of wind power plants...

— IEC 61850 Adaptation for Wind Turbines
Wind turbine
A wind turbine is a device that converts kinetic energy from the wind into mechanical energy. If the mechanical energy is used to produce electricity, the device may be called a wind generator or wind charger. If the mechanical energy is used to drive machinery, such as for grinding grain or...
- IEC 61400-25-1 — Wind turbines - Part 25-1: Communications for monitoring and control of wind power plants - Overall description of principles and models [Published]
- IEC 61400-25-2 — Wind turbines - Part 25-2: Communications for monitoring and control of wind power plants - Information models [Published]
- IEC 61400-25-3 — Wind turbines - Part 25-3: Communications for monitoring and control of wind power plants - Information exchange models [Published]
- IEC 61400-25-4 — Wind turbines - Part 25-4: Communications for monitoring and control of wind power plants - Mapping to communication profile
  - Mapping to SOAP
    SOAP
    SOAP, originally defined as Simple Object Access Protocol, is a protocol specification for exchanging structured information in the implementation of Web Services in computer networks...
    
    -based web service
    Web service
    A Web service is a method of communication between two electronic devices over the web.The W3C defines a "Web service" as "a software system designed to support interoperable machine-to-machine interaction over a network". It has an interface described in a machine-processable format...
    
    s [Work under progress]
  - Mapping to MMS
    Manufacturing Message Specification
    Manufacturing Message Specification is an international standard dealing with messaging system for transferring real time process data and supervisory control information between networked devices and/or computer applications. The standard is developed and maintained by the ISO Technical...
    
    [Refer to IEC 61850-8-1 (published)]
  - Mapping to OPC
    OLE for process control
    OLE for Process Control , which stands for Object Linking and Embedding for Process Control, is the original name for a standards specification developed in 1996 by an industrial automation industry task force...
    
    XML
    XML
    Extensible Markup Language is a set of rules for encoding documents in machine-readable form. It is defined in the XML 1.0 Specification produced by the W3C, and several other related specifications, all gratis open standards....
    
    DA
    OPC Data Access
    The OPC Data Access Specification is the first of a group of specifications known as the OPC Specifications.OPC Data Access is a group of standards that provides specifications for communicating real-time data from data acquisition devices such as PLCs to display and interface devices like...
    
    [Work under progress]
  - Mapping to IEC 60870-5-104 [Refer to IEC 62445-3 (Work under progress)]
  - Mapping to DNP3
    DNP3
    DNP3 is a set of communications protocols used between components in process automation systems. Its main use is in utilities such as electric and water companies. Usage in other industries is not common. It was developed for communications between various types of data acquisition and control...
    
    [Work under progress]
- IEC 61400-25-5 — Wind turbines - Part 25-5: Communications for monitoring and control of wind power plants - Conformance testing [Published]
- IEC 61400-25-6 — Wind Turbines - Part 25-6: Communications for monitoring and control of wind power plants - Logical node classes and data classes for condition monitoring [Work under progress]
IEC 62271-3 — Communications for monitoring and control of high-voltage switchgear
Switchgear
The term switchgear, used in association with the electric power system, or grid, refers to the combination of electrical disconnects, fuses and/or circuit breakers used to isolate electrical equipment. Switchgear is used both to de-energize equipment to allow work to be done and to clear faults...

(published)

External links

The source of this article is wikipedia, the free encyclopedia. The text of this article is licensed under the GFDL.

Standard Documents

History

IEC 61850 Features

IEC 61850 - Related Developments

See also

External links