development of system operation network codes acer workshop 24 august 2011 ole jan olesen, convenor...
TRANSCRIPT
Development of System Operation Network
Codes
ACER Workshop24 August 2011
Ole Jan Olesen,
Convenor ENTSO-E Working Group on
European Operational Standards
The situation today
Development of the Network Codes
Scoping experiences
Conclusions
Presentation outline
Development of System Operation Network Codes | 110824 | Page 2 of 23
The situation today
Development of the Network Codes
Scoping experiences
Conclusions
Presentation outline
Development of System Operation Network Codes | 110824 | Page 3 of 23
What works today?
• All synchronous areas have rules for the operation of the interconnected system
• These rules are based on the physics of the system to which they apply
• These rules and operational practices, developed and improved over the last 50 years, are tested and confirmed by the high reliability of the systems
Development of System Operation Network Codes | 110824 | Page 4 of 23
What is missing?
• The current rules for system operation mostly address TSO or TSO-TSO issues. Rules for other system users need to be addressed
• TSOs exercise different levels of generation control and have different contractual relations with DSOs, generators, HVDCs and other system users
• Existing rules are not enforceable towards system users other than TSOs
• Common rules for interoperability between synchronous systems do not exist yet
Development of System Operation Network Codes | 110824 | Page 5 of 23
Why are the rules not the same?
• Different sizes of synchronous systems (Iceland – 2.6 GW, Continental Europe – 670 GW)
• Different frequency regulation philosophy (decentralized by PF Control in Continental Europe, centralized by F Control in Great Britain)
• Different interconnectivity with neighbours (Germany – 7 neighbours, Serbia – 8 neighbours, Ireland – 1 neighbour via DC)
• Different generation mix (12 % of hydro in CE, 56 % of hydro in Nordic system)
Development of System Operation Network Codes | 110824 | Page 6 of 23
What’s the proposal?
• Pan-European Network Codes should stay concise and general (the “what”)
• The more detailed Network Codes (the “how”) should be requested at the synchronous level
• The existing detailed regional rules should be “integrated” in the Network Codes and by this become a legal reference
Development of System Operation Network Codes | 110824 | Page 7 of 23
The situation today
Development of the Network Codes
Scoping experiences
Conclusions
Presentation outline
Development of System Operation Network Codes | 110824 | Page 8 of 23
National Codes National Codes
Summary table of existing codes
Type I Type II
Regional Code: Continental Europe, Nordic, Baltic
Regional Code = National Code: Ireland, UK
TYPE I – regional inter TSO cooperation in synchronous areaTYPE II – one TSO on regional level
National Codes
Conclusion
Objective is on the basis of Type I to: (1) harmonise regional (inside synchronous areas) operational rules(2) develop interregional (between synchronous areas) operational rules
Result
Pan-European System operation codes (1)
Development of System Operation Network Codes | 110824 | Page 9 of 23
Separate regional codes
Pan-European
Re
gio
n I
rela
nd
Re
gio
n C
on
tine
nta
l Eu
rop
e
Re
gio
n B
alti
c
Re
gio
n N
ord
ic
Re
gio
n U
K Co
de
D
eve
lop
me
nt
Pro
cess
FROMTO
Re
gio
n B
alti
c
Re
gio
n C
on
tine
nta
l Eu
rop
e
Re
gio
n I
rela
nd
Re
gio
n U
K
General interregional and harmonised regional codes
Re
gio
n N
ord
ic
Pan-European System operation codes (2)
Development of System Operation Network Codes | 110824 | Page 10 of 23
• The future Network Codes related to System Operation as part of
the agreed 3-year plan
Proposed structure and timeline of the Operational NCs
1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4
Products/legislation relevant for effective implemention of the IEM
FG on system operation 6
NC on operational security
NC on operational planning and scheduling
NC on load-frequency control and reserves
Other Deliverables currently particularly uncertain or perceived as lower priority
NC on operational training (based on System Operation FG)
NC on requirements and operational procedures in emergency (based on System Operation FG)
2014Deliverable
2012 20132011
Development of System Operation Network Codes | 110824 | Page 11 of 23
NC on Operational security (Q1-Q4/2012)
Development of System Operation Network Codes | 110824 | Page 12 of 23
Some new applications
• Need to address the impact of significant RES increase (not only wind generation but current steep increase of installed PV)
• Need to ensure the compatibility with new market developments (e.g. flow-based capacity allocation)
• Operation of HVDCs between synchronous areas
Development of System Operation Network Codes | 110824 | Page 13 of 23
time
level of detail
Combined “top-down” and “bottom-up” approach
Improvement loop
FG: framework Guidelines
NC: Network Codes
low
high
FG
NC
NC
EXISTING RULES IN THE SYNCHRONOUS SYSTEMS
NC
Development of System Operation Network Codes | 110824 | Page 14 of 23
The situation today
Development of the Network Codes
Scoping experiences
Conclusions
Presentation outline
Development of System Operation Network Codes | 110824 | Page 15 of 23
Interdependencies (1)
• Drafting of Network Codes for System Operation is more
comprehensive than of former regional “Operational
Handbooks”
Technical issues
Regional requirements
Network Codes
Codes Development
ProcessPan-
European harmonis
ation
External stakeholders
European law
Development of System Operation Network Codes | 110824 | Page 16 of 23
Interdependencies (2)
• Drafting of Network Codes for System Operation requires
extensive coordination
Initial Impact Assessment
Framework Guideline
System Operation Network Codes
Market Network Codes
Pilot Network CodeOther System Development
Network Codes
Terms and definitions
Development of System Operation Network Codes | 110824 | Page 17 of 23
Meeting the expectations
• Workshops with stakeholders are very useful to:
Stakeholders
Development of System Operation Network Codes | 110824 | Page 18 of 23
ENTSO-E
Draft NC on Operational security (1)
Achieve common pan-European principles
State basics for Operational security
Increase coordination of System operation
Include all Stakeholders in System operation
Achieve common pan-European principles
State basics for Operational security
Increase coordination of System operation
Include all Stakeholders in System operation
Why? Why? What? What?
Topic Number of pages
1. States of system operation 3½
2. Congestion and active power management 3
3. Voltage control and reactive power management 3
4. Short-circuit currents management 3
5. Power system stability management 3
6. Contingency assessment and handling 5½
7. System protection 1½
8. Frequency quality 3½
9. Operational testing, monitoring and investigation 3½
10. Operational training and certification 3
Total including List of content and Introduction 46
Development of System Operation Network Codes | 110824 | Page 19 of 23
Draft NC on Operational security (2)
Development of System Operation Network Codes | 110824 | Page 20 of 23
Emergency operations Capacity calculation IT communication infrastructure and
data standards
Emergency operations Capacity calculation IT communication infrastructure and
data standards
Normal operational security issues States of system operation Testing and monitoring Training and certification
Normal operational security issues States of system operation Testing and monitoring Training and certification
Code excludesCode excludesCode includesCode includes
Draft NC on Operational security (3)
Development of System Operation Network Codes | 110824 | Page 21 of 23
May result in unprofitable harmonisations of “How”
As a pan-European law difficult to adjust to future developments
May result in unprofitable harmonisations of “How”
As a pan-European law difficult to adjust to future developments
Express pan-European harmonisations of “What”
Open for future developments Open for regional & national
implementations Legally stable
Express pan-European harmonisations of “What”
Open for future developments Open for regional & national
implementations Legally stable
More detailed requirements More detailed requirements Mostly general requirements Mostly general requirements
The situation today
Development of the Network Codes
Scoping experiences
Conclusions
Presentation outline
Development of System Operation Network Codes | 110824 | Page 22 of 23
Conclusions
• In the area of system operation a stepwise approach consists in building on the currently existing rules of the synchronous areas
• A continous improvement loop ensures consistent shift towards pan-European standards
• ENTSO-E is committed to work with ACER and EC towards the best possible quality of the Framework Guidelines and Network Codes
Development of System Operation Network Codes | 110824 | Page 23 of 23