Sunday, February 10, 2019

IEC 61850 Series is Growing Very Fast: 50+ parts soon

The standard series IEC 61850 (Communication networks and systems for power utility automation) is growing faster than expected some years ago. Currently the series comprises 50+ parts published, under revision or new content:
























Klick on picture to magnify.
Enjoy!

Saturday, February 9, 2019

Difference between IEC 60870-5-104 and IEC 61850

There seems to be a growing interest to understand what the difference is between IEC 60870-5-104 and IEC 61850. There have been many discussions, complaints, and frustrations ... no wonder.Here is what I have answered to somebody this week:

Dear xxx,

I guess I got it ... you are analyzing the communication inside a station ... to the IEDs (protection, control, ...).

The IEC 60870-5-104 plus a lot of utility or project specific (signal) engineering will do the job – has done it for decades.

The engineering is the key issue when comparing the two standards … if you can compare them at all!!

IEC 61850 offers a lot more than 104 or DNP3 …



From a message overhead point of view, you can say, that both are more or less the same ... because they use both Ethernet and TCP/IP. There is no benefit to use one or the other.
It is likely that IED vendors will mainly focus on IEC 61850 ... and may get rid of 104 in the long run.
I have always said that utilities using 104 in all substations should continue to use it – until they build new substations or do major refurbishments. There is no need to replace a running 104 solution with IEC 61850 ...
Another issue is: To use GOOSE for interlocking … to get rid of copper … or use it for tripping … and use sampled values some time down the road.
Finally there is an issue with manpower: If the utility has senior experts in 104 close to retirement … they should wait until they have retired. Yes! I have seen many old engineers not willing to learn something completely new!!
Click HERE for a detailed comparison written by domain experts.
Hope that helps a bit more.
Best Regards,
Karlheinz

IEC TC 57 Has Published New Work Proposal For IEC 61850-6-3

IEC TC 57 has just published a new work proposal for IEC 61850-6-3 proposed by the Chinese National Committee:

57/2075/NP
Communication networks and systems for power utility automation –
Part 6-3: Configuration description language for physical resource related to IEDs in substation network systems

CLOSING DATE FOR VOTING:
2019-05-03

Scope:
"The international standard defines the emerging requirements from physical resource description side to facilitate the design, system integration, test, fault analysis and commission, etc. during different stages when IEC 61850 is applied. It described how the physical resource information, such as IED’s dimension, communication port and optical connection, is to be modelled using the System Configuration Language (SCL) which is incorporated under IEC 61850. The application scenarios include but are not limited these mentioned stages.

Furthermore, IEC 61850-6-X helps to fill a gap and establish a relationship between logic function and physical resource information according to the existing IEC 61850 communication structure and configuration description language. The initial focus on application within substations, includes following cases:

  • Physical information related to infrastructure in electrical substations, including cubicle, trench, optical, wire, etc.
  • Physical information related to devices in electrical substations, including device dimension, amount model, physical port, etc.

The proposed international standard specifies a file format for describing dimension, communication connection port, optical wire, cubicle, trench related to IEDs within substations, and the relations between them and logical functions."

The NP notes that "In China, by the end of 2016, nearly 3,000 substations of 110 kV or above based on IEC 61850 had been under operation."

The standard series IEC 61850 is really growing in 2019, see extra post.

Monday, January 14, 2019

Omicron offers new ways for IEC 61850 Substation Automation System testing

Testing the automation, control, and SCADA communication in IEC 61850 Substation Automation System (SAS) is as time consuming as testing the protection – or often even more.

StationScout simplifies the testing and reduces the required effort significantly.

With its powerful functions, StationScout is a specialist for the whole lifecycle of a SAS – from engineering to continuous maintenance. The clear status overview provides ideal support for commissioning and maintenance engineers during the different tasks in Substation Automation Systems utilizing IEC 61850.

Key features:

Status overview: StationScout provides a clear overview of the substation, visualizing the communication according to IEC 61850 in SCL files, values and states in the substation.

Signal tracing: The communication diagram of StationScout allows for signal tracing, from the overview down to the detailed communication message attributes.

Automated testing: StationScout is able to re-use predefined test plans for an automated testing procedure.

Cyber security: The dedicated hardware of StationScout ensures cyber secure operation within the substation communication network.

Simulation: The powerful simulation features of StationScout simplify testing and commissioning. Missing IEDs and IOs can also be simulated.

Defining own names: IEC 61850 abbreviations are quite cryptic. Defining of own names in StationScout allows for comfortable asset handling.


Click HERE for detailed information about the StationScout (English)
Click HERE for detailed information about the StationScout (German)

Smart Grid Interface Modul (SGIM) supports IEC 60870-5-104, DNP3, IEC 61850 and OPC UA

Smart Grid Interface Modul offered by BeEnergy (Pohlheim/Germany)

The Smart Grid Interface Module (SGIM) is a ready-to-use system to monitor measured electrical values in switch cabinets and cable distribution cabinets. The mechanical design of SGIM is in line with industrial standards and is especially meant to be installed in a 185mm busbar system.
SGIM is built from two main parts: the installation platform and the plug-in unit. The plug-in unit contains all necessary control, communication and measurement functions to provide measured data either to a cloud-based data management system or via standard IEC protocols like IEEE 1815 - DNP3, IEC 60870-5-104 and IEC 61850 as well as industrial protocols like OPC/UA.
The device includes a local web server for the visualisation of the acquired data, the configuration of drivers and communication protocols as well as an interface to the WEB-PLC editor.







Click HERE for more information (Data Sheet).
Click HERE to visit BeEnergy