IEC 61850-90-3: Using IEC 61850 for condition monitoring diagnosis and analysis

IEC TC 57 is working on a new part of the IEC 51850 series (public available specification; draft 287 pages):

PRECD PAS 61850-90-3 ED1: Using IEC 61850 for condition monitoring diagnosis and analysis

Excerpt from introduction:

"The CMD (Condition Monitoring Diagnosis) which diagnoses power grid health status has been one of the major issues to improve the reliability of the power system by preventing a potential failure in advance. Since too many different information modelling, information exchange, and configuration techniques for CMD in various forms from many vendors are currently used, they need to be standardized within the IEC.

IEC 61850 is intended to be used to communicate with the condition monitoring equipment. A seamless communication with the sensor network is also desirable."

Here is an excerpt of the various use-cases (Power Transformer):

Some Logical Nodes for power transformer monitoring:

1. SLTC Tap-changer supervision
2. SVAM Vibroacoustic OLTC supervision
3. SDBR Dehydrating breather supervision
4. SPRD Pressure relief device supervision
5. SBHR Buchholz relay supervision
6. SDIV Diverter switch supervision
7. SFIL Insulating liquid filter supervision
8. SNPS Nitrogen preservation system supervision in this picture)
9. SMDU OLTC motor drive unit supervision
10. STRQ Supervision of OLTC torque
11. SMCI Motor current index supervision
12. SVIN Vacuum interrupter supervision
13. YLTC Tap-changer control
14. SPTR Power transformer supervision
15. SPTW Supervision of winding power transformer
16. SPTC Supervision of core power transformer
17. SIML Supervision of liquid insulation medium
18. ....

Other use cases are: 

• Switchgear
• Underground cable (UGC)
• Overhead line (OHL)
• Vibration monitoring

In case you are interested in supporting this work, let me know.

Distribution On-Load Tap Changer Control Using IEC 61850 Client /Server Architecture

Mr. Andrius Maneikis has successfully finished his master thesis at KTH (Stockholm, Sweden) in electrical engineering with the title:

Distribution On Load Tap Changer Control Using IEC 61850 Client /Server Architecture

Please click HERE to download his thesis [pdf, 93 pages, 17 MB].

Abstract. Distributed generation is transforming the power system grid to decentralized system where separate units like wind power generators or solar panel shall coexist and operate in tandem in order to supplement each other and make one extensive system as a whole so called smart grid. It is utmost important to have a control ability over such units not only on a field level but on a system level as well. To be able to communicate with numerous devices and maintain interoperability universal standard is a must. Therefore, one of the core standards relevant to smart grids is IEC 61850 – Power Utility Automation which comes into assistance and tackles aforementioned challenges. This project uses IEC 61850 architecture to implement client/server windows applications for on-load tap changer remote control. The proposed solution and designed applications are tested together with a real time simulator [OPAL] where simple power system is modelled to emulate the system response to control signals in a real time. In this way, the implemented applications can be tried and assessed as if performing in real environment. Consequently, a user of the client application is able to remotely control voltage on the power transformer's secondary side and manipulate the switching equipment simulated in the model.