A step-wise path to e61850 with UML IEC TC 57 WG10

1
A step-wise path to e61850 with UML IEC TC 57
WG10

• Laurent Guise (France) - leading
• Thierry Coste (France), Henry Dawidczak
  (Germany),
• Thierry Dufaure (Germany),
• Herb Falk (US)
• Tanja Kostic (Swiss),Hubert Kirrmann (Swiss),
• Wolfgang Wimmer (Swiss)
• Eric Lambert (France)Hervé Sabot
  (France),Jean-Luc Sanson (France),
• Karlheinz Schwarz (Germany)

2
Main objectives and expected benefits

• A single location for all IEC 61850 modeling, and
  associated documentation
• 100 of the documentation is in the model
  (including diagrams, pictures, ..)
• Improve the quality and maintainability of the
  standard (only the UML model needs to be
  maintained)
• Automatic checking of models consistency
• Avoid manual translation and possible error
  sources
• Multiple publication outputs 100 consistent
• Automatic production of namespaces standard
  word documents
• Automatic generation of the HTML code to browse
  the model
• From the model, we can derive many profiles
• automatically generate the SCL schemas
• Future extensions will be introduced
• ACSI modeling (with diagrams)
• SCL support
• From the model, we can strengthen harmonization
  with CIM, (as active contributor to the TC57
  initiative)
• We can improve the 61850 standard spreading to
  better serve Smart Grid

3
TF Short term objectives(agreed at Moscow IEC TC
57 WG10 meeting Oct 2010)

• Main deliverables
• Produce a UML model of the IEC 61850 standard
• Sharing the same tools than CIM environment (EA,
  model manager tool, ..)
• Sharing the same philosophy (Namespace
  management)
• Feeding web-access task with namespace
  description
• Propose Prepare() the adhoc processes to
  manage its content
• The model will get provisions in order to, in
  next stages
• Support the modeling of ACSI dynamic behavior
  modeling
• Support the harmonization with the CIM model (IEC
  61970-61968) as defined in IEC 62357
• Support the SCL language format (XSD
  serialization)
• Support conformance tests definition
• Support interoperability and functional tests
  definition
• () -gt decision for implementing relies on TC57
  decision

4
The main steps of the UML 61850 TF are

• Target the soonest the switch of the master
  reference for edition to the UML model
• Validate the model content based on 7-4, 7-3, 7-2
  contents
• Validate and Set-up the requested processes to
  manage the model, including versioning rules
• Proceed to switching
• Target the soonest the production of the content
  to be used for the publication through the Web
• Produce a serialised UML model (of the master
  reference) to feed the IEC web site
• Procedures and process, by IEC, need to be in
  place before anything can be published on the
  web.
• Target the extension of the model content to
  embrace other 61850 facets
• Integrate ACSI and 7-410, 7-420, 61400-25 data
  model
• Set-up a path to SCL XML-based description (and
  pave the road for CIM harmonisation)

5
What can be derived from UML(parallel view
CIM-61850) 1/2
In case of CIM, each profile is a relatively
small subset from UML
CIM UML(.eap)
Profile
(.xmi)
Profile
Profile
Profile

• jCleanCim
• UML validation
• UML statistics
• UML doc gen

• Profiling tool
• definition
• schema generation
• profile doc gen

Product1 / XMLEditor
Product2 / XMLEditor2
Profile
Instance(.xml)
IEC 61968-11(.doc/.pdf/.html/.xml)
IEC 61968-13(.rdf/.owl/.ddl/...)configuration
Validation tool
UML validation and statistics(.log)
IEC 61968-9(.xsd/.ddl/...)configuration
on-line
IEC 61968-3,-4,...,-9,-13(.html)
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What can be derived from UML(parallel view
CIM-61850) 2/2
In case of 61850, each section of SCL schema
defines a profile, the union should be in UML
61850 UML(.eap)
Profile
(.xmi)

• jCleanCim
• UML validation
• UML statistics
• UML doc gen

• Profiling tool
• definition
• schema generation
• profile doc gen

Product1 / XMLEditor
Product2 / XMLEditor2
Profile
Instance(.icd,.scd,.???)
Validation tool
IEC 61850-6(SCL.xsd - configuration)
IEC 61850-7-4,7-3,...(.doc/.pdf/.html)
UML validation and statistics(.log)
IEC 61850-?(.??? on-line exchange, e.g. Web
service)
NS schema(NS.xsd)
SCL instance file validation
Web or paper publicationof 7-4, 7-3, 7-2, ...
NS instance(IEC61850... .nsd)
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What can be derived from UML(parallel view
CIM-61850) 2/2
In case of 61850, each section of SCL schema
defines a profile, the union should be in UML
61850 UML(.eap)
(.xmi)

• jCleanCim
• UML validation
• UML statistics
• UML doc gen

• Profiling tool
• definition
• schema generation
• profile doc gen

Product1 / XMLEditor
Product2 / XMLEditor2
Profile
Instance(.icd,.scd,.???)
Validation tool
IEC 61850-6(SCL.xsd - configuration)
IEC 61850-7-4,7-3,...(.doc/.pdf/.html)
Step 1
UML validation and statistics(.log)
IEC 61850-?(.??? on-line exchange, e.g. Web
service)
Step 2
Step 1b
Feed SCL with IEC 61850 data model from UML
Web publication, ...
Paper publication
8
Roadmap for e61850 with UML
10-2010
Today
Pre-analysis
03-2011
06-2011
09-2011
Validate the model extractions (Word)
Ready to switch of master reference
Prepare switch of master ref
Web-access

• Make UML model to include part 7-2 (ACSI) and
  other standards such as 7-410, 7-420, 61400-25,
• Define links with SCL and CIM

TC57 (CAG)
Choose a way to build a common model management
A project Set at IEC level
TC 57 WG10 TC57 WG17, WG18, WG19 TC88
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Where we are ?

• TC57 WG10 Task force meet on a weekly basis
• A huge work was achieved, and IEC 61850 part 7-4
  data model (LN and objects) is almost
  transfered to UML
• Total of 391 issues 340 closed, 27 ready to
  close, 24 open. (87/ 7/ 6)
• In many cases, the UML modelling faced fuzzy
  specification of the IEC 61850 standard and then
  provided clearer and cleaner definitions
• With no doubt the overall IEC 61850 data model
  has already gained higher level of quality thanks
  to this comprehensive modelling assessment.
• Next Part 7-3 CDCs data types
• Much smaller, UML better aligned with original
  Ed. 2, will take less time
• Next Part 7-2 basic data types and ACSI
  interface ? tricker
• Some modelling choices still to be made
• Provide a path to SCL -gt still a lot of difficult
  points to fix.

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Conclusion

• The building-up a UML model of IEC 61850 is a
  huge achievement
• To improve IEC 61850 quality
• To ensure the needed consistency, requested by
  todays and future evolutions
• To confirm IEC 61850 as one of the pillars of
  Smart Grids and will by sure help the management
  of seamless translations with CIM semantic
  domain
• It is requesting huge investment of modelling
  experts and the IEC 61850 editors, but return is
  already high
• It also enables IEC to better address systemic
  approach requested by Smart Grids