Risto Ryyn¤nen Fingrid Oyj, Ville Sepp¤nen SIEMENS CASE
Transcript of Risto Ryyn¤nen Fingrid Oyj, Ville Sepp¤nen SIEMENS CASE
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Risto Ryynänen Fingrid Oyj, Ville Seppänen SIEMENS
CASE: Estlink2
Sivu 1
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BEMIP (Baltic Electricity Market Interconnection Plan)
EstLink 2 is one part of the bigger
package to integrate Baltic eletricity
markets to the Baltic sea area and
European markets.
All interconnections improve also
security of eletricity supply.
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2007 2008 2009 2010 2011 2014
Master Plan
NPS Baltic- project
Permits Contracts Agreements ...
Planning EU grant Preplanning
Commitment by Estonian
goverment
BEMIP NPS Price Area
Estonia
Construction Hand over
Baltic Sea Electricity
Market
Price Areas Lithuania 2012
and Latvia 2013
In operation
EstLink 2 time span
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• Reduction in Transmission Losses for long
Distances
• Long Overhead Lines with high Transmission
Capacity and limited Right-of-Way
• Long Cable Transmissions
• Asynchronous Interconnections
• No Increase in Short-Circuit Power
• Fast Control of Power Flow
Sivu 4
Why HVDC?
Advantages of HVDC Interconnection
DC System
System 1 System 2
AC AC AC AC DC System
System 1 System 2
AC AC AC AC DC System
System 1 System 2
AC AC AC AC
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Owners: Elering AS and Fingrid Oyj
Capacity: 650 MW
DC voltage: 450 kV
Technology: HVDC LCC monopole (Classic) connection
with insulated metallic return
Length of
the connection: ca 170 km:
- Underground cable ca 12 km in Estonia
- Overhead line ca 14 km in Finland
- Sea cable ca 145 km
Budget: ca 320 MEur (EU grant max 100 MEur)
Due date: in the beginning of 2014
EstLink 2 General information
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Finland Estonia
14 km 145 km 12 km
400 kV AC
Substation
Anttila
450 kV DC
OHL
450 kV DC
Submarine Cable
450 kV DC
Land Cable
330 kV AC
Substation
Püssi
Gulf of Finland
EstLink 2
~90 m ~90 m 450 kV DC
Transition
Station
Nikuviken
650 MW
Converter
Station
650 MW
Converter
Station
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Guizhou- Guangdong
Gezhouba- Nan Qiao
Etzenricht
1993
Wien Südost
1993 Dürnrohr
1983
Basslink Acaray
1981 Lamar
2005
Virginia Smith
1987
Sylmar East
1995 2008
1975/1998 Cahora Bassa
Welsh
1995 2006
2014
2000
Moyle
COMETA
2012
Inter Island Connector Pole 3
2014
2013 Black Sea Transmission
1989
2004
2010 EstLink 2
2007 Neptune BritNed
2011
Tianshengqiao- Guangzhou
Guizhou- Guangdong II
Storebælt
2013 Hudson
2010 Ballia-Bhiwadi
2003/2007 East-South Interconnector
Adani
Thailand- Malaysia
2001
2013 BtB Bangladesh
2012
2013 Xiloudu-
Guangdong
2014 Western Alberta
Transmission Link
Poste Châteauguay
1984
East DC Link Project
2014
Celilo
1997/2004
Nelson River
1977/2004
Western Link
2015
2001
Siemens references
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GER FIN EST
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EstLink 2 Siemens with numbers
Personals : GER 167, FIN 34, EST34
Subcontractors: 107 pcs. (Direct)
Trucks: 400 pcs. Electrical
Control Cable: 160 km
Grounding network 40 km
Working hours eng. 97 000 h
Working hours at site 152 000 h
DTS 1258
Contract Value: 100’ €
Tender receipt: 20.05.2010
Tender due date: 20.09.2010
Award of Contract: 23.12.2010
Commissioning: 04.12.2013
Taking Over: 06.02.2014
Marriages:3
Baby's: 8 + (3 coming soon)
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650 MW
Converter station
400 kV
switchgear
110 kV
switchgear
400 kV
switchgear
110 kV
switchgear
EstLink 2 Anttila substation in Finland in 2010 and 2011
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650 MW
Converter station
400 kV
switchgear
110 kV
switchgear
400 kV
switchgear
110 kV
switchgear
650 MW
Converter station
EstLink 2 Anttila substation in Finland in 2012 and 2013
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330 kV
switchgear
650 MW
Converter station
EstLink 2 Püssi substation in Estonia in 2010 and 2013
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EstLink 2 – Converter Station Layout General Components, Anttila
AC Yard
AC Filters
Transformers
Valve Hall
Control Building
DC Yard
DC Filters
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Anttila HVDC Side View
AC 400 kV Substation HVDC 400 kV Yards
HVDC AC Filters
Converter
Transformers Valve Hall
Control Building
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v
Filter
type
Tuning frequencies Power
Anttila Püssi
2 x A TT (triple-tuned)
11/13/24
110 Mvar 90 Mvar
1 x B DT (douple-tuned)
3/36
32 Mvar 90 Mvar
1 x C ST (single-tuned)
48
(and 3N in Anttila)
110 Mvar 90 Mvar
• Harmonics generated by the converters
are filtered by the filters
• Four filters / site
• Filters have a multilevel structure, e.g. type A
EstLink 2 – Converter Station Layout
AC Filters
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Star
windin
g
Delta
winding
Primar
y
windin
g
+
Three single-phase units (weight a' 230 + 75 t)
Each unit consists of 3 windings:
• AC (261MVA, secondary 186 kV)
• valve star
• valve delta
• 30˚ phase shift between the windings
in the valve-side reduces harmonics
One spare unit / site
EstLink 2 – Converter Station Transformers
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Converter Station Transformers without Sound Enclosure
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Converter Station Transformers without Sound Enclosure
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EstLink 2 – Converter Station Valve Hall
12-pulse bridge
• 64 series connected thyristor levels / valve
of which 2 redundant
• total 768 thyristors a' 4 ''/ 8 kV
Cooling system for removal of heat
from the valves
• max. losses of valves is 2400 kW
• the largest source of the losses is the
conduction losses in the thyristors
• two circuit system, ouside with glygol 4 600 l
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• Each thyristor level contains thyristor and voltage grading and damping
components
• 16 thyristor levels are grouped to into one valve section
• 2 valve sections are combined into one modular unit
EstLink 2 –Valve Hall Components
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Smoothing Reactors DC Capacitors
EstLink 2 – Converter Station DC Yard Anttila
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Smooting Reactors
Neutral Cable End
450 kV Cable End
450 kV Surge Arresters
EstLink 2 – Converter Station DC Yard Püssi
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Schematic Diagram of HVDC System
Reversal of load flow
U1= 450 kV U2= 445 kV P= 650 MW
Anttila Püssi Id= 1490 A
U1= -445 kV U2= -450 kV
P= 650 MW
Basic Design of HVDC Systems
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Basic Design of HVDC Systems, Power revelsals
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• Exact Control of Power Flow in either Direction
• Enhancement of AC System Stability
• Reactive Power Control / Support of AC Voltage
• Frequency Control
• Overload Capability
• Emergency Power Functions
• Power Oscillation Damping
HVDC is a Firewall against Cascading Disturbances
HVDC Controllability is beneficial for
Technical Advantages of HVDC Controllability
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EstLink 2 Nikuviken transition station
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EstLink 2 general information about the subsea cable
Mass impregnated HVDC pole cable with integrated return
conductor (IRC cable)
Only one cable to be installed
Environment friendly
• No water soluble materials
• No free oil
Approximate dimensions
• Weight 76 kg / meter
• Diameter ~ 15 cm
Subsea cable will be buried around 1m into the seabed or
protected in hard bottom areas and shallow water
Crossings with Uraduct or Polyspace Water jetting
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EstLink 2 System Testing starting 22nd October 2013
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Illustration of the power purchase schedule
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One test day
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Valokuva tai valokuvia lisää toteutuksesta tähän
• EL2 is proceeding according to the plan!!!
• cumulative amount of near misses is 45 and accidents 8
(disability 95 working days), no serious/ critical accidents!
EstLink 2 summary
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EstLink 2 Projekti Toivottaa Hyvää Joulua…
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Kiitos.
Sivu 33