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Communication in Substations: IEC61850 2.4 : CONCLUSION. Sudhakar RAMPURKAR / AnshumanBHALLA 26th & 27th October 2009. Conclusions. For a real benefit, one needs both technical progress and international agreement to achieve the seamless communication architecture.

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Communication in substations iec61850 2 4 conclusion
Communication in Substations:IEC618502.4 : CONCLUSION

Sudhakar RAMPURKAR / AnshumanBHALLA

26th & 27th October 2009


Conclusions
Conclusions

  • For a real benefit, one needs both technical progress and international agreement to achieve the seamless communication architecture.

  • This is exactly what IEC 61850 offers:


Summary
Summary

  • IEC 61850 is now being used

  • Users’ benefits are:

    • Better planning in Open Electricity Market

    • Streamlined Specification

    • Simplified Design

    • Faster System Configuration

    • Securer Operation & simpler Maintenance

    • Safeguarded Investment

  • Various migration paths are available


Summary1
Summary

  • One standardised communication for all needs in the substation

  • Fully supports all substation automation functions comprising control, protection and monitoring

  • Is a global standard and the key to interoperable solutions

  • Architecture is future proof and facilitates future extensions, therefore it safeguards investments

  • Ability to reuse typical functions and/or bay designs vendor independent


Summary cont i
Summary, cont. I

  • Defines the availability requirements, environmental conditions and the auxiliary services of the system

  • Specifies the engineering process and its supporting tools, system life cycle and the quality assurance requirements

  • Provides engineering and maintenance support by means of the substation configuration language based on XML, i.e. documentation included

  • Vendor-independent engineering-data exchange


Summary cont ii
Summary, cont. II

  • States the conformance tests to be carried out on the products

  • Flexibility allows optimisation of system architectures (scalable technology)

  • Uses commercially available hardened communication components (Industrial Ethernet)

  • Common use of infrastructure


Market demand systems sales segmentation
Market demand: Systems sales / Segmentation

  • IEC 61850 has become a strong requirement for Substation Automation Systems, approx. 40%

    • Transmission: 60% (main exceptions: US, China)

    • Distribution: 20% growing (linked to the IED price)

    • Rail: 10% growing (Europe, India starting)

    • Industry/ Oil & Gas: rare


Market demand regional
Market demand: Regional

Strongest demand in:

  • India

  • Brazil

  • Central & South America

  • China

  • Middle East

  • Europe – various countries


Iec61850 from project perspective
IEC61850 from Project Perspective

  • IEC61850 is very large with many service models and optional features

  • End users implement different combinations of these service models and the different features they provide

  • The protocol is still being evolved

  • Insufficient to simply specify IEC61850

  • Necessary to state:

    • What features are to be used

    • What performance is required

  • Requires detailed analysis and comparison of all products in the project to ensure a good fit


Iec61850 at tendering stage
IEC61850 at Tendering stage

  • A sample of important device specifications:

    • Quantity of client/server associations to each IED

    • Quantity of peer-peer messages the device will publish

    • Quantity of peer-peer messages the device will subscribe to

    • Number of characters allowed in the device name

    • Service models required

    • Control models to be used

    • Implemented Logical Nodes & Optional Data Objects/Attributes

    • Implemented TISSUES

  • Where can this information be found?

    • Device Documentation

    • Substation Configuration Language Files


Motivation for use of iec61850
Motivation for use of IEC61850

  • Utilities expect

  • Interoperability of:

    • functions

    • devices

    • uniform system handling

    • harmonised general system properties

  • To Reduce Engineering Costs by:

    • Standardised information exchanges between tools

    • Reduction of manual entry & associated errors

    • Reuse of project information & configuration


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