Use of Advanced Solutions for UHV Transmission · Use of Advanced Solutions for UHV Transmission...

1 06-2007 Power Transmission and DistributionPTD H 1 MT/Re1 Power Transmission and DistributionPTD H 1 MT/Re

Use of Advanced Solutionsfor UHV Transmission

More Powerout of the Grid …

plus CO2 Reduction

06-2007

2 06-2007 Power Transmission and DistributionPTD H 1 MT/Re

HVDC - High Voltage DC Transmission:

HVDC-LDT - Long Distance Transmission

HVDC “Classic” with LT Thyristors* (Line-commutated Converter)

HVDC “Bulk” with 800 kV – for 5,000 MW to > 6,400 MW

HVDC PLUS (Voltage-Sourced Converter – VSC)

HVDC can be combined with FACTS

V-Control included

Advanced Power Transmission Systems

B2B - The Short Link

Back-to-Back Station

AC AC

DC Cable

AC AC

Submarine Cable Transmission

800 kV for minimal LineTransmission Losses

Long Distance OHL Transmission

DC Line

AC AC

* LTT = Light-Triggered Thyristor with integrated Break-over Protection


Benefits of HVDC: it makes Power flow

Slow FunctionsSlow Functions

Fast Functions

V1 V2

Q2

L and C

Q1

L and C

G ~G ~

α and γ

PI2I1

Fault-Current Blocking

Power & Voltage ControlFault-Current Blocking

Benefits ofHVDC in a synchronous AC System

The Firewallfor Blackout Prevention


Some Some Countries will Countries will needneed Bulk Bulk Power Power TransmissionTransmissionCorridors Corridors ……

… Increase in Transmission Distance – andReduction in Losses

Solutions:800 kV DC & 1,000 kV AC

AC: 6-10 GW

DC: 4-6 GW

Prospects of UHV DC & UHV AC

06-2007 PTD H 1 MT/Re


Example China: Long Distances between Generation and Load Centers (500 ~ 2,000 km)

NorthChina

SouthChina

NortheastChina

Tibet

Taiwan

NorthwestChina

CentralChina East

China Coal

Hydro

Load center

Source: State Grid of China - 2005


The Solution: AC & DC Power Transmission from West to East – Three Bulk Power Transmission Corridors

Sources:

North Corridor

Central Corridor

3 x 20 GW

South Corridor

… the installed Generation Capacity will be 900 GW

Transmission Capacity of each Corridor will be 20 GW by 2020 …

800 kV DC &1,000 kV AC


China will use UVH AC Transmission ...

Source:

Bundle of 8 Conductors

1,000 kV1,000 kV Test Line in China Test Line in China ……

Rated Voltage:Rated Voltage:1,000 kV1,000 kVMaximum OperationMaximum OperationVoltage: Voltage: 1,100 kV1,100 kV… and

possibly India will follow !


UVH DC Test Line put into Service on June 28, 2007 in Changping District, Beijing, China.

Rated Voltage:Rated Voltage:±± 800 kV800 kVMaximum SourceMaximum SourceVoltage: Voltage: ±± 1,200 kV / 0.5 A1,200 kV / 0.5 A


Sources:

Total Length of Test Line: 1,084 m

Tower

88 m

80 mSpan of middle Section:300 m


China Southern Power Grid - Prospects of Grid Developments

CSG:Five Provinces

1 million km2

220 million People

Source: “Brazil-India-China Summit Meeting on HVDC & Hybrid Systems –Planning and Engineering Issues”, July 2006, Rio de Janeiro, Brazil

By 2010, West-East Power Transfer will increase from 11.5 GW to 13.5 GW

By 2010, the Transmission Capacity from West to East will increase to 22.4 - 24.4 GW

By 2009, the first ± 800kV DC TransmissionProject in the World will be launched by China Southern Power Grid By 2010, a large Corridor with 5 DC Lines and 8 AC Lines will be formed


Siemens received the Order for the World’s first 800 kV HVDC in China Southern Power Grid

Siemens – the Leader in Bulk Power DC Transmission Technology

Yunnan-Guangdong

5,000 MW1,418 Km

+/- 800 kV DC

Commercial Operation:2009 – Pole 12010 – Pole 2

Reduction in CO2 versus local Power Supply with Energy-Mix

32.9 m tons p.a. - by using Hydro Energy and HVDC for Transmission


Sunan

To Sichuan Power GridJinping Plant I

GuandiLinping

Jinping Plant I I

Xichang

Wuhan

Guangdong

LeshanChongqing

Changsha

Shanghai

Jinping ± 800 kV HVDC Transmission Project


Source: “Brazil-India-China Summit Meeting on HVDC & Hybrid Systems –Planning and Engineering Issues”, July 2006, Rio de Janeiro, Brazil

6,400 MW+/- 800 kV DC

Planned for 2012

2,237 Km

For Comparison: Germany 840 Km


R O U R K E L A

R A IP U R H IR M A

T A L C H E R

J A IP U R

N E R

E RW R

N R

S R

B 'S H A R IF

A L L A H A B A D

S IP A T

G A Z U W A K A

J E Y P O R EC H A N D R A P U R

S IN G R A U L I

V IN D H Y A -

2000M

W

2000MW

3000M W

1 0 0 0 M W

5 0 0 M W

L U C K N O W

D IH A N G

C H IC K E N N E C K

K R IS H N A

T E E S T A

T IP A IM U K HB A D A R P U R

M IS A

D A M W E

K A T H A L -G U R I

L E G E N D

7 6 5 K V L IN E S 4 0 0 K V L IN E S

H V D C B /B

H V D C B IP O L E

E X IS T IN G / X P L A N X I P L A N

Z E R D A

H IS S A R

B O N G A IG A O N

D E V E L O P M E N T O F N A T IO N A L G R ID

K O L H A P U R

N A R E N D R A

K A IG A

M A N G A L O R E

P O N D A

IX P L A N

M A R IA N I

N .K .

K A H A L G A O N

R A N G A N A D I

S E O N I

C H E G A O N

B H A N D A R A

D E H G A M

K A R A D

L O N IK A N D

V A P I

G A N D H A R /

T A L AA R U N

B A N G L A

B A L L A B G A R H A 'P U R(D E L H I R IN G )

B A N G A L O R E

K O Z H IK O D E

C O C H IN

K A Y A M K U L A M

T R IV A N D R U M

P U G A L U R

K A Y A T H A R

K A R A IK U D I

C U D D A L O R E

S O U T H C H E N N A I

K R IS H N A P A T N A M

C H IT T O O R

V IJA Y A W A D A

S IN G A R P E T

P IP A V A V

L IM B D I

K IS H E N P U R

D U L H A S T IW A G O O R A

M O G A

U R I

B H U T A N

R A M A G U N D A M

S A T L U JR A V I

J U L L A N D H A R

D E S HN A G A R

V A R A N A S I

/U N N A O

M 'B A D

P U R N E A

K O R B A

N A G D A

S IL IG U R I/B IR P A R A

P H A S E - III

NIC

OB

AR

AND

AM

AN

AND

LAKSHAD

WEEP

T E H R I

M E E R U T

B H IW A D I

B IN A S A T N A

M A L A N P U RS H IR O H I

K A W A S

A M R A V A T I

A K O L A

(B y 2 0 1 2 )

A G R A

S IR S I

C H A L

J E T P U RA M R E L I

B O IS A RT A R A P U R

P A D G H E

D H A B O L

K O Y N A

/B A R H

G 'P U R

H O S U R

Prospects in China and India:

“Smart”andStrong Grids

Similar Prospects … as in China

Grid Extension in India - Hybrid AC plus DC

Source: “Brazil-India-China Summit Meeting on HVDC & Hybrid Systems – Planning and Engineering Issues”, July 2006, Rio de Janeiro, Brazil


+/- 800 kV HVDC !


Benefits of Hybrid AC/DC Solutions for Bulk Power Transmission in restricted Right-of-Way Areas

Source: “Brazil-India-China Summit Meeting on HVDC & Hybrid Systems – Planning and Engineering Issues”, July 2006, Rio de Janeiro, Brazil

EXISTING

CHICKEN NECK AREA

800 kV DC

800 kV DC

800 kV DC

800 kV DC

6-7 x 6 GW DC

DEVELOPMENT OF CHICKEN NECK AREA

Up to 10 GW AC

FUTURE

50 GW Hybrid:≈ 10 GW AC≈ 40 GW DC

14 06-2007 Power Transmission and DistributionPTD H 1 MT/Re14 Power Transmission and DistributionPTD H 1 MT/Re

Technology Issues for

06-2007

for UHV DC Transmission

More Powerout of the Grid …

plus CO2 Reductionfor generated 2860 MW AC-bus of rectifier station 2814 MW


The Solution – for UHV AC

Transformer Bushings:Type OTA; Trench UK *, Oil-Paper TechnologyProduction: Hebburn/UK, MWB Shanghai/ChinaTransformer Design for 1,200 kV is availableReference: Henjang / China

Example AC Test Transformer 1,200 kV

Protected CreepageDistance: 10.5 m

Power Transmission and Distribution

* now Siemens* now Siemens

06-2007 PTD H 1 MT/Re15


Specific Issues – for UHV AC

Essential toEssential to UHVUHVSystem ControlSystem Control andandEnergy ManagementEnergy Management,,e.g. withe.g. with FACTSFACTS

06-2007 Power Transmission and DistributionPTD H 1 MT/Re

SF6 insulated CT and PT – Design is well proven

Type SAS, SVS; Trench Germany *

Production: Bamberg and Shanghai

In Service up to 800 kV

Scaling-up for 1100 kV is no Problem

Capacitive Voltage Divider

Type TEHMF Trench Canada *

Production: Toronto und Shanghai

In Service up to 800 kV

Scaling-up for 1100 kV is no Problem

* now Siemens* now Siemens

The The AC AC Measurements Measurements for for UHVUHV

16


Air-Core, Air-cooled Smoothing Reactor and Converter Transformer – The Dimensions are “huge”

500 kV DC500 kV DC in the Pictures in the Pictures –– are now are now being extended to being extended to 800 kV DC800 kV DC

Mostly an Issue of Mechanics –


but not only …


UHV DC Measurements

18 06-2007 Power Transmission and DistributionPTD H 1 MT/Re500 kV DC Current Transducer in Zhaoqing, China

Voltage Divider 500 kV DC East-South Interconnector, India

800 kV DC Application:Design and Manufacturing based on existing Technology

VDC I DC

All MeasuringComponents are at high Potential

Signal Transmission via optical Fibers inside the Composite Housing

Easy to “extend” onUHV DC


UHV DC Reactor – in Test Field

800 kV DC3,125 A75 mH28 tons !


UHV DC Bushing at Test Lab TU Graz – Austria

20 Power Transmission and DistributionPTD H 1 MT/Re06-2007

800 kV DC Bushing in Test Field

20 PTD H 1 MT/Re06-2007


AC (1 min) 1,020 kVSI 1,790 kVLI (FW/CW) 2,080/2,320 kVDC (2 hrs) 1,175 kVPR (90/90/45 min) 935 kV

48** Transformers – for the Yunnan-Guangdong UHV DC Project

Test Voltages

** plus 8 Spare Units

800 kV HVDC Transformer under Construction320 MVA Single-Phase* Transformer

* for Transportation Reasons

Core Design: 3 Limbs & 2 Return LimbsL x W x H: 26 x 6.4 x 15.2 mTotal Weight: 512 tons


Solutions for UHV DC Thyristor Valves


UHV DC Valves with proven modular Designbased on existing Technology and Know-How for DC Voltage 800 kVValve Tower Configuration: Double or Quadruple Valve Proven existing LT Technology

Thyristor

Module

Valve Group


HVDC Thyristor Valves – Principle Circuit of a 12-Pulse Group


Multiple Valve Unit(QuadrupleValve)

A

BC

Valve Branch

Valve Tower Arrangement

A B C1

2

3

4

Example 500 kV

Neutral

to DC Line: + or -

12-Pulse Group


800 kV – HVDC with 2 Converters per Pole

24

To AC Bus &Filters

DCLine

Neutral

800 kV

06-2007 PTD H 1 MT/Re Power Transmission and Distribution

25 06-2007 Power Transmission and DistributionPTD H 1 MT/Re25

Transformer Bushings

400 kV DC 800 kV DC

400 kV-Valve Group 800 kV-Valve GroupDC NeutralDC Line

Each PoleEach Pole can be operated with can be operated with 400 kV DC400 kV DC

N-1 Criteria: fully redundant HVDC Scheme –with two 12-Pulse Converters per Pole

06-2007 Power Transmission and DistributionPTD H 1 MT/ReN-1 Criteria: Redundancy through Bypass-BreakersPower Transmission

and Distribution

PTD H 1 MT/Re


Valve Hall Configuration – for UHV DC

400 kV Valve Hall

DC Neutral

400 kV DC

Power Transmission and DistributionPTD H 1 MT/Re

400 kV DC

800 kV Valve Hall

to 800 kV DC Line

“Ready for Transmission”

Each Valve Group can be bypassed … n-1 Criteria

06-2007 Power Transmission and DistributionPTD H 1 MT/Re


Thorough Testing is essential …

Verification of Mechanical Performance

Verification ofClearance Distances for UHV DCEquipment

Cantilever Bending Test for DC Insulators


Testing of DC Bypass-Breakers

400 kV DC

800 kV DC


“Snapshots” from DC Valve Tower Testing

Dielectric Testing of Valve-Support Structure


Finally …

… it will look like this:

06-2007 PTD H 1 MT/Re Power Transmission and Distribution


Siemens is successful in the HVDC Business –

GuG II2007

GuG I2004

Ge-Nan1989

Neptune

2007

Poste Châte.

1984

Basslink

ESI2003/2007

Thailand-Malaysia

2001

Moyle2001

Acaray

1981Lamar

2005Virginia Smith1987

Sylmar East1995

TSQ2000

Celilo

1997/2004

1977/1998Cahora Bassa

Nelson River

1977/2004

Welsh

1995 2005

Ballia-Bhiwadi

2009

TSQ

2009/2010Yunnan-Guangdong

World’s longest HVDC Cable in Operation

World’s 1st HVDC with LTT and integrated BOD

World’s 1st HVDC with Transmission Voltage above 500 kV

World’s 1st

HVDC with8 kV Thyristors

for more than 30 Years

31 Power Transmission and DistributionPTD H 1 MT/Re

World’s 1st HVDC with Transmission Voltage of 800 kV !

Etzenricht1993

Wien Südost1993

Dürnrohr1983

Storebælt

2010

2010Bridnet

World’s 1st

HVDC with500 kV DC Cable

Status: 06-2007


Intelligent Solutions for Power Transmission

AdvancedAdvanced HVDC HVDC

TechnologiesTechnologies

Thank You for your Attention !

Use of Advanced Solutions for UHV Transmission · Use of Advanced Solutions for UHV Transmission...

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