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LongDistance

BulkPowerTransmissionin

bothUHVACand

UHVDC

FEASTCanberra/AUS

November12th,2008

D

r.PeterKirc

hesch

VicePresid

entR&DAREVAT&D

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Content

UHVACvs.UHVDC

Worldwidep

erspectives

Technologic

alchallenge

s

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UHV(UltraHigh

Voltage):>=800kV

Am

ericanliterature:UHV:400800kV;

EHV(ExtraHigh

Voltage):>=800kV

AC:Alternating

Current

DC:DirectCurrent

D

efinitions

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Loadcentresarein

manycountries

distantfromnatura

lresources(coal,

water)

N

eedforbulkpowertransmission

T

ypicalexamples

areChina,

India

,

B

razil

Pow

erlossesareinversely

prop

ortionaltothe

squareofthe

voltage

RightOf

Way-aspects

W

hyUHV?

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Shanxi

Coal

base

Exam

ple:PopulationdensityChina

10%

90%

SouthWest

Hydro

base

Threegorges

Mengdong

Coal

base

Trans

mis

sion

corrid

or

Transm

ission

corri

dor

Transmissioncorr

idor

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Moreaneconomicalthanatechnicalquestion

Toc

onsider:

Investmentcosts

forequipmenta

ndlines(incl.ROW)

C

apitalizedvalue

oflosses

O

utagecosts

Conclusion:

U

HVDCiseconomicallymoreattactiveforbulkpo

wer

transmission(5000MWa

ndmore)overlongdista

nces

(2000km).

F

orotherparame

tersacase-by-c

asestudyisnee

ded

c

onsideringthes

pecificsituation

ofthecustomer

ACversusDC

N

icolaTESLA

1856-1943

AC

ThomasAlvaEDISON

1847

1931

D

C

The

warofcurrentsisover

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Content

UHVACvs.UHVDC

Worldwidep

erspectives

Technologic

alchallenge

s

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Example:UHVDCknownpros

pects600kV-800kV

Northern

Lights

2014-2020

RioMadeira

2014

WestCor

each3terminal

SouthW2

012

SouthE2013

ChickenNeck

multiple

schemes

2012-2020

Irkutsk

(Russia)

-Beijing:

2015

Yunnan-Guan

gdong:2009

Xiangliaba-Sh

anghai:2011

Jingping-EastChina:2012

Xiluodu-Hu

nan:2014

Humeng-Shandong:2015

Nuozhadu-Gua

ngdong:2015

Xiluodu-Han

zhou:2015

Humeng-Tia

njing:2016

JinshaRiverI-EastChina:2016

Humeng-Liaoning:2018

JinshaRiverII-Fujian:2018

Hami-Central

China:2018

J i n s h a R i v e r I I E

a s t C h i n a : 2 0 1 9

WestCor

4terminal

North2018

In

-servicedates

Aysen-Sic

2012

Russia-Europ

e

multipleschem

es

2015onwards

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Content

UHVACvs.UHVDC

Worldwidep

erspectives

Technologic

alchallenge

s

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Technolog

icalalterna

tives/ACP

roducts

Twoprinciple

solution

s:

a)GIS

b)AIS

b1)withlivetank

circuitbreaker

b2)withdeadtank

circuitbreaker

Voltagem.

CBR/LT

ITR/CT

GIS C

BR/DT

Powertransformer

Disconne

ctor

Powertransforme

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H

VDCconverterstation

/maincomponents

By-pass

switch

u-imeasurement

Disc

onnector

HVDCValv

e

Converter

transform

er

Wallbushing

MRT

Bswitch

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Arcingchamberde

velopment

forcircuitb

reakers

Challenges

XCalculationmetho

ds

X

Ma

terialquestions

X

Testingmethods

7/30/2019 Long Distance Bulk Power Transmission in both UHVAC and UHVDC

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Po

werTransformers

Tank-mou

nted

air-blastc

oolers

Core&

Windings-Optimum

XSinglephase

X

Threewoundlimbs

X

Connectionin

parallel

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DC+/-50

0kV

4000MW

AC230kV

600MW

Exam

ple(inopera

tion):ACan

dDClines

Ne

lsonRiver/CAN

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ARE

VAT&D

Thankyo

u