1. IEC for SUBSTATION AUTOMATION TOWARDS MULTI-VENDOR INTEROPERABility OVER The SYSTEMS LIFECYCLE The ENTSO-E Approach
KUL – Power Symposium
Leuven, Belgium, 22 March 2017
Grégory Huon, Elia

2. Introduction

3. Some definitions
Substation automation refers to using data from Intelligent electronic devices (IED), control and automation capabilities within the substation, and control commands from remote users to control power-system devices.
IEC is a standard for vendor-agnostic engineering of the configuration of Intelligent Electronic Devices for electrical substation automation systems to be able to communicate with each other. IEC is a part of the International Electrotechnical Commission's (IEC) Technical Committee 57 (TC57)[1] reference architecture for electric power systems. The abstract data models defined in IEC can be mapped to a number of protocols. Current mappings in the standard are to MMS (Manufacturing Message Specification), GOOSE (Generic Object Oriented Substation Event), SMV (Sampled Measured Values),[clarification needed] and soon to Web Services. These protocols can run over TCP/IP networks or substation LANs using high speed switched Ethernet to obtain the necessary response times below four milliseconds for protective relaying.

4. About IEC

5. 42 600 900 310 ENTSO-E at a glance TSOs from 35 countries
million citizens served
600
GW generation managed
900
Thousand Km of transmission lines
OBSERVER
310
Ten-Year Network Development Plans
Adequacy forecasts
R&D plans
Tools for Market Integration
Network Codes

6. ENTSO-E organizational structure / Standardisation (1/2)
Research, Development & Innovation Committee
(RDIC)

7. ENTSO-E organizational structure / Standardisation (2/2)
Subdomains of TC57
Working Groups
Power system IED communication and associated data models – IEC (Substation automation)
IEC TC 57 - WG 10
Energy management system application program interface (EMS - API) - IEC CIM for grid exchanges
IEC TC 57 - WG 13
System interfaces for distribution management (SIDM) – IEC CIM (TSO to DSO interfaces)
IEC TC 57 - WG 14
Data and communication security
IEC TC 57 - WG 15
Deregulated energy market communications - IEC CIM for market exchanges
IEC TC 57 - WG 16
ENTSO-E since 2009 contributes in both CIM & series, for grid and market exchanges respectively.

8. The three components of IEC 61850 – Interoperability ambition
Communication
Semantic Data Models
Engineering

9. HISTORIC

10. Historic - IEC 61850 standard
IEC 61850, the global standard for communication in substations, is bringing open, Interoperable, systems, and flexible architectures, to the substation automation domain.
However, the IEC is broad and currently not specific enough to bring interoperable benefits to TSOs.
The AhG shall develop an ENTSO-E USER PROFILE under IEC 61850:
Based on a super set of TSO requirements
Proven to enhance interoperability and reduce implementation costs
Today’s power utilities operate more globally and require flexible, future-proof systems to cope with changing requirements, philosophies, and technologies.
Interoperability
Flexibility

11. Historic - April 2012: ENTSO-E statement on IEC 61850 standard
Observations:
Multi-vendor systems very scarce 10 years after 1st standard publication
Implementation complexity
Recommendations:
Improve interoperability, over life cycle of the systems of Assets
Mask complexity by ergonomic tools
Stakeholders:
standardization bodies : IEC, … ; Suppliers ; Conformance testing companies: UCA Iug, … ;
Users (associations): ENTSO-E, …

12. ENTSO-E work structure around IEC 61850
ISTool
Engineering Process
NWIPs
On going
Done

13. ENTSO-E Work plan

14. Improvement @ information level / ISTool

15. Objectives of the Interoperability Specification Tool
 Tool for DSAS(*) (sub)functions and signals ENTSO-E level
= profile builder (it is not a specification/configuration tool)
Future proof (e.g. integration of settings parameter, CIM, interfaces with system specification and configuration tools, …)
Basis for gap analysis between IEC and user requirements
Facilitator between IEC complex world (through IEC UML model) and utility world, finally enabling multi-vendor interoperability over system life cycle in an efficient and sustainable way
(*) Digital Substation Automation Systems

16. ENTSO-E profile: a superset of requirements
“Super” common denominator
(used by all ENTSO-E members) +
“Sub” Common denominator
(used by some ENTSO-E members) +
TSO specific
(used by only 1 TSO)
Pronostic
(to be confirmed)
(Sub-)functions
Signals

17. ENTSO-E ISTool - Homepage

18. Pilot project on distance protection
Countries taking part in Pilot project on distance protection
Remaining countries

19. ENTSO-E profile – TSO methods to provide inputs
Several methods:
Conventional schemes decomposition
Start from existing IEC modelling
From scratch
Illustration Elia approach –
Conventional schemes decomposition

20. Pilot project on distance protection
Basis: subset of distance
protection subfunctions
2 types of GAP were identified:
No IEC LN in the model
Not enough granularity in the
model 20

21. Improvement @ engineering level
ENTSO-E issued recently new requirements to further enhance the engineering using IEC
Input & data flow modeling
Introduction of virtual IED for vendor independent design (transparent purchasing process)
Include key primary system data for efficient system engineering
Include telecommunication network description

22. ENTSO-E issued a Document for Comment (DC) to IEC
Existing
TF SCL/Functional modeling 1
Input & data flow
modeling
Virtual IED &
comparison mechanisms
Virtual IED (ISD)
Capability description extension
to enhance purchasing process
System engineering
efficiency
Communication network
description 2
New TF to be created 3
TF 90-4 (to restart)

23. ENTSO-E issued a Document for Comment (DC) to IEC

24. Possible ENTSO-E engineering process
Profile builder
Template or Project specification/configuration
IST
SST(*)
Bay Template
Substation Specification
Function
with Subfct
Grouped in templates
(Optional)
Virtual IED
(Optional)
(*) SST of the future, with ENTSO-E requirements supported

25. PLANNING

26. Semantic Data Models / ENTSO-E profile
Planning
ISTool ready for pre-population
6.2017
Start roll-out through
ENTSO-E members
ENTSO-E profile
Consolidated
Gap analysis
Semantic Data Models / ENTSO-E profile
2017
2018
2019
2020 …
Market Tools for specification/configuration …
Engineering Process
Virtual IED
Input & data flow modelling
Start IEC TC 57 WG10
System Engineering Efficiency
Communication Network Description

27. CONCLUSIONS

28. Conclusions
Efforts in standardization is an effort on the long term, with potential huge benefits for ENTSO-E members and the community
… interoperability over the systems lifecycle is key
for the asset managers
Efforts to develop an ENTSO-E PROFILE are ambitious but key for the market
Coordination at ENTSO-E level ensures a strong user position within standardization bodies
TSOs need to PARTICIPATE in order to BENEFIT