© ABB Slide 1 October 30, 2016

CEPSI Bangkok 2016 FP AB B1 ABB Developments in UHVAC and UHVDC transmission

MarMarkus Pettersson, ABB AB Power Transformers, October 24 2016, Bangkok

rsson, ABB AB Power Transformers, October 24 2016, Bangkok

Markus Pettersson, ABB AB Power Transformers, October 24 2016, Bangkok

© ABB Slide 2 October 30, 2016

§ World’s first HVDC transmission 1954

§ Gotland-Swedish mainland

§  100kV, 20 MW § Pioneer of HVDC

History of HVDC

The transformer evolution ABB’s pioneering spirit

1954 2016

§  The Gotland HVDC transmission link, first commercial project

§  20 MW 100 kV

Major achievements §  2016: World’s first commissioned 1,200kV UHVAC transformer

§  2015: Worlds first UHVDC transformer connected to UHVAC passed the test

§  2015: World’s largest HVDC transformer, Celilo

§  2014: UHVDC/UHVAC prototype passed the test

§  2012: 1100 kV UHVDC prototype passed the test

§  2010: 800 kV UHVDC into commercial operation in China

§  2008: 800 kV UHVDC unit passed the test

§  2007: HVDC unit short circuit tested

§  2000: HVDC light transmission

§  1982: 600 kV HVDC for Itaipu, Brazil

§  1954: HVDC line Gotland to mainland Sweden

§  The Changji - Guquan, world’s first 1100 kV UHVDC transmission link

§  12 000 MW 1,100 kV

ABB HVDC converter transformers An integral and key part of HVDC systems

The role of the converter transformer

§  To separate DC and AC network

§  To adopt voltage to converter valve

§  Tapping range for part of the DC voltage and reactive power control

§  Provide inherent reactance necessary for HVDC current commutation/limitation

§ Transmission line or cable § Transformers

& Thyristor valves

§ Smoothing reactor

§ DC Filter

§ Control System § AC filters § Shunt

capacitors

§ AC bus

Typical features of HVDC transformer

§  Large transformer units

§  Exposed to AC and DC Voltages – strong insulation requirements

§  Subjected to Voltage/Current Harmonics

§  Reactive loading and close interaction with HVDC system

From 800 kV to 1,100 kV UHVDC Why a new rated UHVDC?

§ Meeting increasing energy demands

§ Lowering environmental impact

§ Renewable energy sources are often located far from load centers

§ UHVDC 1,100 kV increases capacity up to 25%, a prodigious upgrade from 800 kV UHVDC

§ Even lower transmission losses over long distances

World’s first 800 kV UHVDC transformers §  Xiangjiaba-Shanghai 800kV UHVDC 6400 MW successfully in operation since 2010

§ First technology step since Itaupi including development of completely new transformer technology

§  Lingzhou-Shaoxing (LingShao) 800kV UHVDC 8000 MW. World’s first 800 kV HVDC transformer connected to 750 kV AC. UHVDC connect to UHVAC for first time, in operation 2016

ABB HVDC converter transformers 800 kV UHVDC – Groundbreaking development

World’s first 800 kV 10GW UHVDC transformers

§  Ximeng - Taizhou, 507 MVA, 800 kVdc, 500 kVac

§ 10 000 MW (10 GW) power transmission

§ World’s first 800 kV 10 GW UHVDC transformer

§ Same transport profile as earlier project with less power transmission

§ Enables up to 25% higher power transmissions over long distance, compared with the 800kV UHVDC links in current operation

ABB HVDC converter transformers 800 kV HVDC – 10 000 MW transmission capability

World’s first 1,100kV transformer §  Successfully designed, developed and tested world’s first 1100 kV UHVDC transformer prototype with accompanying bushing, in June 2012

§  Highest power level ever 12000 MW (12 GW) electricity over 3000 kilometers

§  50% increase in transmission capacity, compared with the 800 kV UHVDC links currently in operation

ABB HVDC converter transformers 1,100 kV UHVDC – Groundbreaking development

World’s first 1,200 kV UHVAC transformers §  World’s most powerful UHVAC transformers, alternating current electrical power rated for 1,200kV

§  Successfully developed, manufactured and energized 1,200 kV UHVAC transformers

ABB HVDC converter transformers 1,200 kV UHVAC – Groundbreaking development

World’s first 800kV 10000 MW bushing §  World’s most powerful transformer bushing, capable of handling 10,000 MW (10 GW) of direct current electrical power rated for 800 kV

§  Successfully designed, developed and tested world’s first 800kV 10 GW UHVDC transformer wall bushing

§  Enables up to 25% higher power transmissions over long distance, compared with the 800kV UHVDC links in current operation

ABB HVDC transformer bushings Example of ABB UHVDC bushings

Rated power (MW) Rated voltage (kV)

ABB HVDC converter transformers HVDC power and voltage development over time

Transport restriction for remote sites in HVDC projects ABB has proven ability to design compact transformers

Transportation console

约

Transport profile for on railroad for the transfomers in China

§  Maximum transportation mass of transformer 350 ton

§  Maximum transportation length 13m

© ABB Slide 13 October 30, 2016

What can ABB deliver today? Nearly all conceivable rating combinations can be realized

© ABB Slide 15 October 30, 2016

Let our experience work for you

CU-project Vancouver Island

Pacific Intertie

Intermountain

Rio Madeira

Brazil-Argentina Interconnection I&II

Sardinia-Italy

Highgate Châteauguay

Quebec- New England

Skagerrak 1-4

Konti-Skan Baltic Cable

FennoSkan 1&2

Kontek

SwePol

ChaPad

Rihand-Delhi

Vindhyachal

Hami South - Zhengshou Gezhouba-Shanghai

Three Gorges-Shanghai

Leyte-Luzon Broken Hill

New Zealand 1&2

Gotland

Italy-Greece Rapid City

Vizag II Nuozhadu-Guandong

Cahora Bassa

Sapei

Sharyland & Railroad DC Tie

Three Gorges-Changzhou

Outaouais

Ximeng-Taizhou Shanghaimiao-Shandong

Xiangjiaba-Shanghai

NorNed

Apollo Upgrade IPP Upgrade

Itaipu

North East Agra

Jinping - Sunan

Oklaunion

Celilo Upgrade

LitPol Link

Troll

Murraylink

Hällsjön

Directlink

Cross Sound

Estlink

Valhall

Caprivi Link

BorWin1

EWIC

DolWin

NordBalt

Mackinac

Åland

Caithness Moray NSN

ABB HVDC converter transformers

Changji-Guquan

Lingzhou-Shaoxing Ningdong-Shandong

Xiluodu – Zhexii

© ABB Slide 16 October 30, 2016

§  Domain expertise of ABB scientists and engineers

§  ABB’s top modern test facilities

§  Use of advanced simulation tools

§  Earlier ABB developments, existing well proven 800 kV UHVDC

§  In-house manufacturing capability

§  60 years of experience in commercial HVDC technology

ABB UHV technology Key enablers

© ABB Slide 17 October 30, 2016

HVDC 60 years 1954 – 2014

1928 1997 1954

2010 2012 2012

© ABB Slide 18 October 30, 2016

§  Itaipu, Brazil 600kV DC (Bushings GOE HVDC). At the Itaipu project the GOE HVDC bushing was first used

ABB HVDC transformer bushings Examples of ABB HVDC bushings

§  3 Gorges, China 500kV DC (Bushings GOF and GGF). The name was on later projects shorten to GOF

§  Sylmar, USA 500kV DC (Bushings GGF). For 1999 a new design on the air side was introduced to replace free oil in the valve hall with SF6. The name of the bushing was changed to GGF

© ABB Slide 19 October 30, 2016

§  Growing demand for electrical power à strong growth of generation & transmission

§  Cost of power increasing à losses should be reduced

§  Global warming à reduce dependance on fossil fuel à more renewable energy to the electrical grid

§  Electricity becoming a tradeable commodity à need to transfer electricty across border

à Hence HVDC technology!

Electric power for everyone The Challenges

§ © ABB Group

§ October 30, 2016 | Slide 19

© ABB Slide 20 October 30, 2016

ABB UHVDC converter The full set of equipment developed by ABB

Post insulators