ENTSO-E report
CIMug meeting,
11-14 Nov 2014, Orange County, US
Chavdar Ivanov, PhD
Research and Development Senior Advisor, ENTSO-E Secretariat
ENTSO-E CIM Standards
1st edition – IEC CIM 14 (UML 14v02, 2009)
• Primarily designed for a bus-branch model representation
• Does not include file header information
• Model assembling (merging) requires more logic when implementing
• Pure load flow exchange (no dynamics, no graphics, no GIS, limited short circuit data exchange)
Common Grid Model Exchange Standard (CGMES) based on draft IEC CIM 16
(UML 16v28)
• Includes file header information i.e. model assembling process is better defined; difference files are better defined – 61970-552
• Added dynamics package - draft 61970-457
• Updated equipment model - 61970-452
• New transformer & PST model – due to the alignment with DSO approach.
• Short circuit data exchange is adapted to IEC 60909
• Exchange of graphical layout added –61970-453
• Exchange of GIS added- based on IEC 61968-4
• Solved Power System State – 61970-456 including changes in SV and TP
• Added Steady State Hypothesis profile –the input to the load flow calculations
ENTSO-E and CIM: status
ENTSO-E approved CGMES Conformity Assessment
Framework
ENTSO-E organizes yearly Interoperability tests to validate
the development of the standards. This includes testing of,
with necessary support from vendors, any change to
CGMES and new IEC CIM standards that will be endorsed
by ENTSO-E or put for approval in IEC.
Interactions related to IEC TC57/WG13
IEC TC57/WG13
ENTSO-E IOPs
Conformity assessment
ENTSO-E business
requirements
Maintenance of
test data is part
of it. Continuous
update of the test
data is relevant.
This has also the
objective to help
understanding of
CIM approaches
Currently the only
IOPs that test IEC
WG13 standards
Including active
feedback from
TSOs – reporting
missing relevant
items, etc.
Outcome of IOP 2014
The last IOP test was held in the week of 14 July 2014 which had the
following objectives:
To validate test configurations (test data) which will be used for
the CGMES conformity on version 2.4.14;
To resolve reported issues related to CGMES v2.4;
To discuss ENTSO-E extensions applicable for the future version
of the CGMES. This development is necessary to satisfy the
requirements defined in the European network codes.
Key issues
• IEC CIM must be better in handling changes now when a bigger community and different domains is using it.
• Key improvement areas are:
• Better WG coordination
• Create a common roadmap for new items.
• Better version handling of the standard that separate minor and major (breaking changes). More attention should be paid on backwards compatibility of changes
• Better interaction between WG and CIMug. Get CIMugmembers active in evaluating changes and coming with use cases
• Attention on the TSO-DSO interface
Status CGMES and conformity
version 2.4.15 (from 7 Aug): https://www.entsoe.eu/major-
projects/common-information-model-cim/cim-for-grid-models-
exchange/standards/Pages/default.aspx
Text configurations related to the v2.4.15 were published. CGMES
conformity on v2.4.15 is running.
The conformity process is on demand, i.e. as soon as a vendor is ready
with its Declaration of Conformity a request to ENTSO-E for assessment
could be sent.
However, suppliers of tools used by TSOs for long term planning studies
are requested to issue their Declaration of Conformity by 28 Nov 2014.
Tender on the ENTSO-E test configurations for CGMES
conformity
Request for Proposal on Test Configurations Maintenance and Review
ENTSO-E publishes a request for proposal on test configurations
maintenance and review. The test configurations are used in the CGMES
conformity assessment process.
The deadline for submitting the offers is 8 December 2014 17:00 CET.
For additional details please see here: https://www.entsoe.eu/news-
events/announcements/announcements-archive/Pages/News/Request-for-
Proposal-on-Test-Configurations-Maintenance-and-Review.aspx
Status CGMES development
One new version of CGMES is under development – v2.5.x
– this is to meet the Network Codes and some long term
planning requirements
There are number of issues that should be processed by WG13
in cooperation with ENTSO-E. The post-IOP discussion started
in Aug and should continue
CGMES dynamics
The effort to verify the standard models is ongoing. Telco-s every 2 weeks
The schedule is to verify the models before the end of the year
The following vendors are participating: Siemens (PSS/E and Netomac),
DIgSILENT (PowerFactory), RTE/Tractebel (Eurostag), Neplan (Neplan),
CESI (Sicre)
3 test cases are produced for each standard model. Each vendor produces
Case 1 – data for 2 charts
Case 2 – data for 4 charts
Case 3 – data for 8 charts
The data from the 6 tools is then per chart and the 14 charts are analyzed
CGMES dynamics – example – 1 chart of 14 charts per
standard model tested
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
0.0 1.0 2.0 3.0 4.0 5.0
Pg
, p
u
Time, sec
Eurostag
PowerFactory
PSS/E
Neplan
Netomac
SICRE
CGMES dynamics – still things to do
The typical values in the UML should be harmonized with the values using during the
implementation effort. Especially when values are missing
OCL rules to be added to some classes of the standard models. This is to document
the restrictions. WG13 already agreed on this, but the implementation is to be done.
Implementation guide to be packaged and published
Additional models to be added – Chavdar already collected some
UML (some attributes) will need adjustment based on the feedback from the
implementation process
Comparison with the last IEC 61400-27-1 FDIS (wind standard) is necessary
Modelica approach to be considered and implemented for the purpose of the user
defined models. It looks like it will be an easy plug-in however analysis is necessary.
Topics of interest – questions and answers
What worked for ENTSO-E out of the box and what had to be customized for ENTSO-E use.
– The CIM concept worked to satisfy general requirements of the business
processes. However the difficulties are in the details and the way to find the best
way to customize and to agree on extensions. The process is too slow and
complex.
What were the major barriers to adoption you had to overcome
– The natural complexity of CIM makes difficult for power system engineers to
understand. Therefore there was resistance to change. The costs involved and
the lack of vendors’ promotion of CIM approaches both in terms of price and
functions to cover business enhancement were additional barriers.
What were the major benefits for ENTSO-E achieved by adopting the CIM standards
– It enables to have a common data exchange approach across Europe. However
the process is not complete yet.
Topics of interest – questions and answers
What new developments would ENTSO-E like to see in the CIM standards
– At first stage it is important to cover required data types for the purpose of
network codes
Are there any new uses of the CIM planned for ENTSO-E
– Currently the implementation of CGMES in both long term planning and
operational exchanges is ongoing. New uses could be planned upon the
completion on this task
What practical guidance and lessons learned could ENTSO-E share.
– Training is important
– Strong cooperation between users and vendors is necessary to understand the
requirements in order to have the right implementation of agreed profiles
– Conformity of CIM standard is necessary and the maintenance of the test data is
a key.
Thank you. Questions?
Conformity Assessment - Governance: [WHO]
Scheme Owner Opinion Body
Assessment Body
Review Team*Review Team*Review Team*
Second Opinion Team
Second Opinion Team
Second Review Team*
Supplier
Strategic
Data
Governance
Steering
ENTSO-E
Secretariat
+ TSO’s
e.g. TSO’s
Supplier
Reviewer
Pool
Support
ENTSO-E Secr.
WG
Standardization
Supplier
Conformity Assessment – Governance – [WHO] IMPARTIALITY
CONFIDENTIALITY
RESPONSIVENESS to
COMPLA
INTS &
APPEALS
DISCLO
SURE o
f
INFO
RMATIO
N
CONFIDENCE &
TRUST
Contact Point
Conformity Assessment
Service Provider
Conformity Assessment – High Level Process
Declaration of Conformity
Attestation of Conformity
Conformity Assessment – HIGH LEVEL PROCESS IMPARTIALITY
CONFIDENTIALITY
RESPONSIVENESS to
COMPLA
INTS &
APPEALS
DISCLO
SURE o
f
INFO
RMATIO
N
CONFIDENCE &
TRUST