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Sebastian Stadler, Tobias Korn | ABB AG | Grid Systems | December 2011
Integrating offshore wind energy
An engineering challenge
© ABB Group
April 8, 2015 | Slide 1
Challenges
Load flow scenario Germany 2020
Situation 2010
Source: Amprion
© ABB AG
April 8, 2015 | Slide 2
Scenario 2020
Challenges
Offshore installations Europe
Source: KPMG 2010
© ABB AG
April 8, 2015 | Slide 3
Projects
Offshore clusters North Sea
SylWin
BorWin
HelWin
DolWin
Project
Finish
Company
BorWin1
400 MW
2010
ABB
BorWin2
800 MW
2012
Siemens
DolWin1
800 MW
2013
ABB
DolWin2
900 MW
2015
ABB
HelWin1
576 MW
2013
Siemens
HelWin2
690 MW
2015
Siemens
SylWin1
864 MW
2014
Siemens
Status: 2011
© ABB AG
April 8, 2015 | Slide 4
Wish and reality
Offshore wind farm projects North Sea
40% gap
Source:
wind:research 2011
© ABB AG
April 8, 2015 | Slide 5
Transmission technology
AC vs. DC
© ABB AG
April 8, 2015 | Slide 6
HVDC projects and technology
HVDC vs. HVAC
But cost is not
everything:
AC cable > 50 km
needs reactive power
compensation, which is
technically absurd as
far as offshore is
concerned

Environmental impact:
DC cable has no
electrical field and has
lower losses, which
leads to a lower
thermal impact

© ABB AG
April 8, 2015 | Slide 7
HVDC projects and technology
Connecting SylWin wind farms with AC cables
Platform
AC Cable
© ABB AG
April 8, 2015 | Slide 8
HVDC projects and technology
Connecting SylWin wind farms with DC cables
Platform
DC Cable
AC Cable
© ABB AG
April 8, 2015 | Slide 9
HVDC projects and technology
HVDC Classic vs. Light
800
700
600
HVDC Light
overhead lines
500
HVDC Classic/
HVDC Light
MI cable
Udc in kV 400
HVDC Classic
overhead lines
300
200
HVDC Light
VPE cable
0
0
1000
2000
3000
4000
Power in MW
© ABB AG
April 8, 2015 | Slide 10
5000
6000
7000
HVDC projects and technology
HVDC light project DolWin1 by ABB
© ABB AG
April 8, 2015 | Slide 11
HVDC projects and technology
DC connections europe 2010
Offshore Wind
HVDC connections
© ABB Group
April 8, 2015 | Slide 12
HVDC projects and technology
Realized projects
Hällsjön
Hagfors
56 HVDC Classic projects since 1954
14 HVDC Classic upgrades since 1991
14 HVDC Light projekte
since 1997
FennoSkan 1&2
Nelson River 2
Highgate
CU-project
Châteauguay
Skagerrak 1-3
Gotland 1-3
Vancouver Island
Pole 1
Outaouais
Valhall
Gotland Light
QuebecNew England
NorNed
SwePol
Konti-Skan
Baltic Cable
Tjæreborg
Kontek
Estlink
Troll
BorWin1
Rapid City
EWIP
English
Channel
Dürnrohr
Sardinia-Italy
Sapei
Square Butte
Cross Sound
Pacific Intertie
Eagle Pass
Sharyland
Pacific Intertie
Upgrading
Pacific Intertie
Expansion
Intermountain
IPP Upgrade
Blackwater
Hülünbeir- Liaoning
Lingbao II Extension
Italy-Greece
Rio Madeira
Itaipu
Inga-Shaba
Caprivi Link
Apollo Upgrade
Cahora Bassa
Brazil-Argentina
Interconnection I&II
Three Gorges-Changzhou
Three Gorges-Shanghai
Sakuma
Gezhouba-Shanghai
Xiangjiaba-Shanghai
ChaPad
Vizag II
Rihand-Delhi
Three Gorges-Guandong
Leyte-Luzon
Broken Hill
Vindhyachal
New Zealand 1&2
Directlink
Murraylink
© ABB AG
April 8, 2015 | Slide 13
HVDC projects and technology
DC connections europe 2020
Offshore Wind
HVDC connections
© ABB Group
April 8, 2015 | Slide 14
HVDC projects in China 2020
Humeng – Shandong
800kV, 6400 MW, 2015
Humeng - Tianjing
800kV, 6400 MW, 2016
(The year means project in operation)
Irkutsk (Russia) - Beijing
800kV, 6400 MW, 2015
Ningxia - Tianjing
3000 MW, 2010
Hami – C. China
800kV, 6400 MW, 2018
Xianjiaba – Shanghai
800kV, 6400 MW, 2011
Heilongjiang
Russia
800kV, 6400 MW, 2018
3000 MW, 2011
Xinjiang
Inner Mongolia
NCPG
Gansu
NWPG
Shanxi
Ningxia
Qinghai
Shaanxi
Sichuan &
Chongqing
BtB Northeast-North (Gaoling)
1500 MW, 2008
Shandong
North Shaanxi-Shandong
3000 MW, 2011
Jiangsu
Henan Anhui
BtB Shandong - East
ECPG
CCPG
Shanghai
1200 MW, 2011
Hubei
BtB North - Central
Zhejiang
1000 MW, 2012
800kV, 6400 MW, 2012
Jiangxi
Hunan
Jinsha River II – East China
Fujian
SCPG
Guangxi
Yunnan
Jinsha River II - Fujian
800kV, 6400 MW, 2018
Nuozhadu-Guangdong
Jinghong-Thailand
Hainan
3000MW, 2013
Bangkok
Gezhouba-Shanghai Expansion
3000 MW, 2011
Taiwan
Guizhou
800kV, 6400 MW, 2019
800kV, 5000-6000 MW, 2015
Hulunbeir (Inner Mongolia)
- Shenyang
3000 MW, 2010
Liaoning
Beijing
Tianjin
Hebei
Xizang
FarEast (Russia) – NE China
3000 MW, 2010
Humeng - Liaoning
Jilin
(Baoji – Deyang)
Xiluodu - Hunan
800kV, 6400 MW, 2014
Jinsha River II – East China
© ABB AG
April 8, 2015 | Slide 15
NEPG
NW-Sichuan
Xiluodu - Hanzhou
800kV, 6400 MW, 2015
800kV, 6400 MW, 2016
Jingping – East China
BtB China-Russia (HeiHe)
750 MW, 2008
Lingbao BtB Expansion
750 MW, 2009
Goupitan - Guangdong
3000 MW, 2016
Yunnan - Guangdong
800kV, 5000 MW, 2009
Guangdong
HVDC projects and technology
DC connections europe 2030+
Water
Solar
Offshore Wind
HVDC connections
Offshore Wind
300 GW
25 000 km2
5000 x 10 km
Solar
700 GW
8000 km2
90 x 90 km
© ABB Group
April 8, 2015 | Slide 16
Water
200 GW
Getting a feeling for
dimensions
Offshore is a big business
© ABB AG
April 8, 2015 | Slide 17
Getting a feeling for dimensions
Wind energy converter
Height total:
Blade length:
Weight:
© ABB AG
April 8, 2015 | Slide 18
up to 190 m
up to 80 m
up to 800 to
Getting a feeling for dimensions
Sea cable installation

95 km of a 155 kV 3-phase cable

70 kg / m  6650 to in total

maximum load: 7000 to
© ABB AG
April 8, 2015 | Slide 19
Getting a feeling for dimensions
DC platform BorWin1
Jacket:
Height: 62 m
Weight: 1800 t
Topside:
Length: 50 m
Width: 33,5 m
Height: 22 m
Weight: 3200 t
© ABB AG
April 8, 2015 | Slide 20
Getting a feeling for dimensions
Thialf crane
Length:
Width:
Draught:
Capacity:
© ABB AG
April 8, 2015 | Slide 21
200 m
88 m
max. 31 m
2 x 7100 to
© ABB AG
April 8, 2015 | Slide 22
Wind energy converter
Types of foundation used worldwide
© ABB AG
April 8, 2015 | Slide 23
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