Use of IEC-61850 to telecontrol MV grids PAC W orld Conference - - PowerPoint PPT Presentation

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Use of IEC-61850 to telecontrol MV grids PAC W orld Conference - - PowerPoint PPT Presentation

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Use of IEC-61850 to telecontrol MV grids PAC W orld Conference David Bru i Bru Technical Director at iGrid T&D 29 th June 2011 Dublin Ireland 29 June 2011, Dublin, Ireland Presentation Fine control of the distribution grid

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Use of IEC-61850 to telecontrol MV grids

PAC W orld Conference

David Bru i Bru – Technical Director at iGrid T&D 29th June 2011 Dublin Ireland 29 June 2011, Dublin, Ireland

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Presentation

  • Fine control of the distribution grid
  • Homogenous telecontrol system
  • MV control high volume of
  • MV control high volume of

facilities

  • We present standard solutions

with:

– Standard protocols Future proofed – Future-proofed – Low cost – Communications Media independent

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SLIDE 3

Contents

Control over MV grid Considerations Tools Cases Solutions MV grid Considerations Tools Cases Solutions SAIDI Low cost IP Remote SAIDI

Communications

Robustness networks switchgears Renewables Robustness Future-proof IEC 61850 Fault detection 3 OP_030

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MV telecontrol considerations

  • Low Cost: Equipment, commissioning

q p , g and communications

  • Communications media
  • Communications media

independent

  • Off-the-shelf products
  • Future-proof

Future proof

  • Robustness: EMC + temperature and

h idit humidity.

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The communications media

  • TCP/ IP networks

I i f i d bli – Integration of private and public networks. – Media independent

  • Today networks for MV telecontrol

Today networks for MV telecontrol

– Private networks (TETRA, xDSL, ...)

I t t i d

  • Investment required.
  • Secure communications.

P bli k (GPRS Wi ) – Public networks (GPRS, Wimax, ...)

  • Cost effective solution.
  • Suited for non-critical points.

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SLIDE 6

The communications media

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Why IEC-61850?

  • Protective devices available to all

applications applications

  • More functionalities
  • Generic widely available technology
  • Share common: protocol, data format,

naming, configuration.

  • Easy and secure deployment (configure

y p y ( g and commissioning)

  • Low traffic

Low traffic

  • Future

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Case A - Remote Control of MV switchgears switchgears

  • Use of MMS/ 61850

Use of MMS/ 61850

  • Objects discovering reduces the chance
  • f configuration errors during
  • f configuration errors during

commissioning.

  • Much other information for engineering
  • Much other information for engineering

applications. E t b itt d i B ff d R t

  • Events submitted using Buffered Report

Control Blocks (BRCB).

  • Measurements submitted using

Unbuffered Report Control Blocks (URCB).

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Case A - Measurements

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Case A – Today’s handicaps

Many facilities require retrofit

  • Many facilities require retrofit
  • 61850 equipment more expensive

than conventional than conventional

  • Control center connected to all

IEDs? IEDs?

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Case A - Solution

intelligent RTU

  • intelligent RTU

(iRTU)

  • Low cost
  • I/ O for retrofit
  • I/ O for retrofit
  • Communications

integration

  • All-in-one
  • All in one

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Case B - Over-current fault d t ti detection

  • Performing fault detection requires
  • Performing fault detection requires

using specific devices that can detect

  • ver current conditions
  • ver-current conditions.
  • When a fault occurs the sensors will

t thi t t th C t l C t report this event to the Control Centre through a small RTU.

  • The fault detectors allow the Control

Centre to isolate the affected area very quickly.

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Case B - Solution

  • intelligent RTU
  • intelligent RTU

(iRTU Lite)

  • Low cost
  • 8 digital inputs

8 digital inputs

  • Internal

GPRS/ EDGE GPRS/ EDGE modem

  • GOOSE reports

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Case B - Protocol stack used

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Data concentrators

  • MV telecontrol means many concurrent

connections.

  • The Control Centre must be freed from

the communications management and pass to it only relevant information. p y

  • With a hot-standby configuration.
  • Translation to current Control Center
  • Translation to current Control Center

protocol (DNP3, 101 or 104). A GOOSE t t h dl

  • A GOOSE concentrator can handle a

high volume of fault detectors.

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Data concentrators

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Conclusions

  • Remote control of the MV grid allows faster

faster correction of faults correction of faults.

  • Use of advanced RTUs

advanced RTUs integrate reliable and d t i ti i IP secure data communication using IP networks.

  • Found two scenarios solved with two optimal
  • ptimal
  • Found two scenarios solved with two optimal
  • ptimal

solutions solutions based on IEC-61850 standard.

  • Solutions based on standard protocols and
  • Solutions based on standard protocols and

providing forward forward path compatibility path compatibility.

  • Take advantage of IEC

IEC-61850 benefits 61850 benefits to use Take advantage of IEC IEC 61850 benefits 61850 benefits to use it in WAN networks.

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SLIDE 18

Thanks

iGrid T&D

Parc d’Innovació La Salle Parc d Innovació La Salle

  • C. Sant Joan de la Salle, 42

08022 – Barcelona

Web : www.igrid-td.com

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