© ABB

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ABB Power SystemsOffshore wind connection

Peter Lundberg, Global Product Manager, November 2016

November, 2016

© ABB

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Integrity, Health, Safety and EnvironmentAlways most important – our core values

Integrity

Code of conduct

Regular trainings

Personal responsibility

Leadership and culture

Health, Safety and Environment (HSE)

Hard work, never relax

Leadership and culture

Personal responsibility

Focus on full value chain

Risk assessments and mitigation

Regular trainings

24/7 – right balance

Resource efficiency

November, 2016

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Installed offshore wind mainly in Europe, China offers highest growth

ChinaJapan

S. Korea

Source: MAKE, Global Offshore Wind Power Market march 2016

Europe

Current activity mainly in UK, DE, and DK

FR, NL and BL emerging - projects in development, large grid

connections expected 2018/19

1.1

8.6

2020

GW

2015

GW

11.2

0.4

0.3

Taiwan

Installed & grid connected

Expected grid connection

24.4

Asia

Current activity concentrated mainly to CN, fast growth

expected starting in 2018

KR, TW, JP emerging (albeit slowly)

North America

Limited to small demonstration projects, no

significant projects until 2020 or later

0.3

Offshore Wind Markets - Global

China 2025:

46 GW

2025

GW Expected grid connection

Offshore Wind Market

Europe 2025:

42 GW

1.2

GW

November, 2016

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Installed base and outlook12 GW installed. 20 GW to be installed in next 5 years. Additional 60 GW expected between 2020 and 2025

Installed capacity by countries.

YE 2015 (Source: Make)

Installed capacity by countries.

YE 2020 (Source: Make)Installed capacity by countries.

YE 2025 (Source: Make)

12 GW 33 GW 95 GW

November, 2016

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Offshore Wind ConnectionsABB offering

Offshore and onshore AC and DC stations including buildings

Reactive power control systems (FACTS)

HV-Cables including land and subsea cable laying

Training and advise on operation

System studies including grid code compliance solutions and advise on connection to onshore main grid

Maintenance contracts

November, 2016

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ABB Offshore Wind ConnectionsGrid code compliance

AC faults are not propagated

through the HVDC system

Grid code compliance done

by HVDC

Relaxed requirements on

wind turbines

November, 2016

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ABB Offshore Wind ConnectionsFault ride-through

Fault in the main AC grid

No shut-down of the wind park

Reduce stress on the turbines

Increase energy yield

November, 2016

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ABB Offshore Wind ConnectionsVSC technology

Voltage sourced converters

Self-commutated IGBT valves

Multi-level topology

ensures low losses < 1 %

Requires no reactive power

compensation

November, 2016

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ABB Offshore Wind ConnectionsTransmission distance

< 50 km AC cables

< 100 km DC or AC cables

> 100 km DC cables

November, 2016

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ABB Offshore Wind ConnectionsOffshore HVDC wind power connections

Offshore

AC substation

Wind farms

Offshore HVDC

converter station

DC cable

transmission

Onshore HVDC

converter station

November, 2016

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ABB Offshore Wind ConnectionsEliminating the need of AC substations

Offshore

AC substation

Wind farms

Offshore HVDC

converter station

DC cable

transmission

Onshore HVDC

converter station

November, 2016

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ABB Offshore Wind ConnectionsEliminating the need of AC substations

Offshore

AC substation

Offshore HVDC

converter station

DC cable

transmission

Onshore HVDC

converter station

Wind farms

Offshore HVDC

converter station

November, 2016

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An HVDC offhore wind solution conceptObjective and customer benefits

Objective

Reduced total cost and delivery time

Ensure predictable execution, based

on defined scope/concept including

well defined interfaces

Modular approach

A conceptual platform design,

enhanced flexibility with regards to

different requirements, site

conditions and general business

models

Minimize offshore hook-up work and

offshore commissioning

Direct connection of Wind Turbine

Generators

Customer benefits

Significantly (50-60%) reduce the

topside weight as compared to the

platform used in DolWin 2 (award

date 2011)

Increased number and smaller lifting

vessels offshore can be utilized

Increased number of yards for

manufacturing

Minimized interface work

Pre-approved technical systems,

smooth handling authority approvals

No need for AC collector platforms

November, 2016

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Modularized platform – 2 concepts

Model 3A

2 valve hall modules

1 ABB/YARD General Module

1 Jacket

Minimize number of systems onboard.

Planned to be built modular onshore, tested

as far as possible

Assembly of modules can be completed

onshore or offshore, as best fits the project.

HVDC functionality similar for 3A & 4A.

One module common among yard and ABB

Model 4A

2 valve hall modules

1 ABB General Module

1 YARD Module

1 Jacket

Planned for client options and more systems is

therefore added in the base case.

Planned to be built modular, integrated onshore

and tested, lifted offshore as a single lift.

HVDC functionality similar for 3A & 4A.

ABB scope in dedicated ”ABB Modules”

and YARD scope in separate module

REF DWA

3A4A

November, 2016

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Evaluation of HVDC Platform Structures

MODULAR

TOPSIDE

& JACKET

REDUCED

WEIGHT AND

VOLUME

November, 2016

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Modular Approach

The key benefits with a modular approach

Parallel Engineering and manufacturing,

Many potential yards/workshops and lifting vessels

Equipment on ground level, separate testing.

Reduce complexity / Manage Interfaces

Dedicated ABB and yard module

Easy to adapt options

Drawbacks with a modular approach

To a certain extent Increased Weight

Some more engineering required.

November, 2016

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Capabilities

Rated Power: 800-1,200 MW

Design lifetime: 25-30 Y

DC Voltage (outgoing): ±320 kV

AC Voltage (incoming): 72 kV

Reliability: 98.5%

Dimensions

Size: 40 x 60 x 26 m

Weight: 7,000 T

Volume: 45,000 m3

Location

North Sea conditions

Water Depth 20-50m

Ambient-T -3 to +30 deg.C

RH = 100% winter

and 51% in summer

Flexibility Parallel manufacturing, several

workshop can be utilized

Equipment lifted in on ground

level, separate testing

Divide the scope/interfaces into

modules

Separate lifting of individual

modules possible if needed

A modular approach is well suited

to offer various options

Wider range of lifting vessels

available on the market (cost

reduction and risk mitigation)

Size Reduced Volume

Reduced to ~40x60m,

compared with DolWin2

80x100m

Reduced Weight

More than 50% weight

reduction compared with

DolWin2

Structural

configuration Topside weight ~ 6,000-7,000T ;

can be divided into 3-5 modules

at lower weights

4-leg jacket is the best option for

the understructure

Living quarter, helideck, cranes,

etc. optional

An HVDC offshore solutionKey data Performance

November, 2016

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ABB Offshore Wind ConnectionsFeatures of VSC technology

• Independent control of active

and reactive power flow

• Voltage and frequency control

• Connection to passive loads

• Enhancement of connected

AC networks

• No short-circuit power needed

• Black start capability

• Proven high reliability and availability

• Compact station design

• Multi-terminals

November, 2016

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Our knowledge is based on a number of completedand ongoing offshore power projects

Princess Amalie

120 MW

AC-connection

Borwin 1

400 MW

HVDC-connection

Thornton Bank

325 MW

AC-connection

Dolwin 1

800 MW

HVDC-connection

Dolwin 2

900 MW

HVDC-connection

Valhall

80 MW HVDC

Power from shore

Troll 1 & 3

80+80 MW HVDC

Power from shore

November, 2016

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Experience - Princess AmaliaHVAC-connection of 120 MW Windfarm

• Project

Owner: ENECO 50% and Q7

Holding (Econcern & EIH) 50%

In operation 2007

120 MW, 60 WTG:s

Located 28 km from shore , water

depth 19 - 24 m

• ABB Supply and Services

Electrical System design

Off-shore 150/36 kV substation

Project Utility SCADA

150 kV Export Cable

22 kV Array Cables

November, 2016

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Experience - Thornton Bank phase 2 & 3HVAC-connection of 325 MW Windfarm

Customer: C-Power, Belgium

System responsibility for “Electrical balance of

plant”

325 MW Offshore AC Substation

Supply of 38 km of 150 kV Export sea cable

Supply of 55 km of 36 kV Array sea cables

Supply and installation of 6 km of 150 kV land

cable

Demolish temporary substation onshore

Completion July 2013

November, 2016

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Experience - Germany, BorWin 1400 MW HVDC Offshore Wind Power Connection

Customer: TenneT, Germany/Netherlands

First HVDC Offshore Wind Power Connector

200 km cable connection (125 km sea, 75 km land)

Turnkey supply including buildings and platform

Contract Sep 2007

Completion Nov 2009

November, 2016

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Experience - Germany, DolWin 1800 MW HVDC Offshore Wind Power Connection

Customer: TenneT, Germany/Netherlands

800 MW HVDC Offshore Wind Power

Connector

166 km cable connection

Turnkey supply including buildings and

platform

Contract 2010

Completion 2015

November, 2016

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Experience - Germany, DolWin 2900 MW HVDC Offshore Wind Power Connection

Customer: TenneT, Germany/Netherlands

900 MW HVDC Light

135 km cable connection

Connects offshore North Sea wind farms to the

German grid

Turnkey supply including buildings and platform

Contract 2011

Delivery 2015

November, 2016

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VSC based HVDCLet our experience work for you

23

1

19

2

8

10 11

125

65

14 1718

16

2021

1

VSC-HVDC projects by ABB

VSC-HVDC projects by others

1. Eagle Pass

2. Macinac

3. Cross Sound

4. Maritime

5. East West Interc.

6. CMS

7. NSL

8. Troll 1 & 2

8. Troll 3 & 4

9. DolWin 1

9. DolWin 2

9. BorWin 1

10. Valhall

10. Johan Svedrup

11. Skagerrak

12. Tjæ reborg

13. NordLink

13. Kriegers Flak

14. Hällsjön

15. NordBalt

16. Gotland

17. Ål-link

18. Estlink

19. Caprivi

20. Murraylink

21. Terranora

4

6

1. Trans Bay

2. INELFE

3. Italy-France

4. NEMO

5. SylWin

6. HelWin 1

6. HelWin 2

6. COBRAcable

7. Ultranet

8. South West Link

9. DolWin 3

9. BorWin 2

9. BorWin 3

1513

73

47

8

9

November, 2016

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Offshore wind connectionsSummary

Offshore wind connections will increase

Transmission distance more than

~100 kilometers by HVDC

HVDC system enabled

for offshore DC grid

Fulfillment of Grid Codes

November, 2016