Sistemas Electricos

STUDY COMMITTEE B2, JWG B2-17/B4/C1
HVDC Transmission Configurations and Intermediate Stations

Tutorial of JWG-B2/B4/C1.17 on HVDC Transmission Systems –
Design and Economics
Converter Configurations – John Graham, ABB Brasil
john.graham@br.abb.com

STUDY COMMITTEE B2, JWG B2-17/B4/C1
HVDC Transmission Configurations and Intermediate Stations

Converter Configurations : IntroductionTo start discussing converter configurations we
need to consider:
1. Line configuration, bipolar or monopolar
2. Transmitted power and voltage
3. Location, especially regarding transportation
While many configurations are possible, we discuss in detail
only those applicable to overhead line transmission.

STUDY COMMITTEE B2, JWG B2-17/B4/C1
HVDC Transmission Configurations andIntermediate Stations

Cigré Technical Brochure 186 from WG 14.20 - 2001

STUDY COMMITTEE B2, JWG B2-17/B4/C1
HVDC Transmission Configurations and Intermediate Stations

Id

Pd

Ud

In all CSC cases, bi-polar operation only considered,
except in emergency or maintenance.

STUDY COMMITTEE B2, JWG B2-17/B4/C1
HVDC Transmission Configurations and Intermediate Stations

Bipole

MonopoleBack-to Back

In all CSC cases, 12-pulse converters only considered

HVDC Classic

HVDC CCC

HVDC VSC

STUDY COMMITTEE B2, JWG B2-17/B4/C1
HVDC Transmission Configurations and Intermediate Stations

Bipole

Monopole

12-pulse centre-tap

In all CSC cases, bi-polar operation only considered,
except in emergency or maintenance.

Figure 3.2.a Ground Return

Figure 3.2.bMetallic Return

STUDY COMMITTEE B2, JWG B2-17/B4/C1
HVDC Transmission Configurations and Intermediate Stations

Basic types of Converters
• Naturally commutated converters (Thyristors)
(current source converters : CSCs)
– Classic HVDC Transmission
Itaipu, Three Gorges, Baltic Cable, (many)

– Capacitor Commutated Converters (CCC)
Garabi, Rapid City

• Voltage source converters (VSCs)– HVDC Light, HVDC Plus (IGBT)
Cross Sound, Murray Link, Troll A

– VSC using GTO (statcom or industrial)

STUDY COMMITTEE B2, JWG B2-17/B4/C1
HVDC Transmission Configurations and Intermediate Stations

1990

1992

1994

1996

1998

2000

2002

2004

2006

Rihand-Delhi
HQ-NEH
New Zealand
Skagerrak III
Baltic Cable
Kontek
Chandrapur-Padghe
Leyte-Luzon
SwePolGotland Light
Tjæreborg
Directlink
Garabi I
Italy-Greece
Three Gorges-Changzhou
Garabi II
Cross Sound Cable
Murraylink
Three Gorges-Guangdong
Rapid City Tie
Sylmar
Troll A
Vizag II
Three Gorges-Shanghai
NorNed
EstLink
Valhall
Sharyland
Sapei
Outaouais
Nord E.on 1
Caprivi Link
Xiangjiaba-Shanghai

Recent ABB projects

VSC overhead
300 MW, 350 kV

2008

2010

2012HVDC
HVDC Light
HVDC CCC

CSC overhead
6400 MW, 800 kV

STUDY COMMITTEE B2, JWG B2-17/B4/C1
HVDC Transmission Configurations and Intermediate Stations

STUDY COMMITTEE B2, JWG B2-17/B4/C1
HVDC Transmission Configurations and Intermediate Stations

Investment Cost
Losses
Availability

+
-

STUDY COMMITTEE B2, JWG B2-17/B4/C1
HVDC Transmission Configurations and IntermediateStations

Availability
Losses
Investment Cost

+
+
o

STUDY COMMITTEE B2, JWG B2-17/B4/C1
HVDC Transmission Configurations and Intermediate Stations

Phase 1

Phase 2
Investment Cost
Losses Phase 1
Availabity Phase 1

+
-

STUDY COMMITTEE B2, JWG B2-17/B4/C1
HVDC Transmission Configurations and Intermediate Stations

Phase 2
Investment Cost
Losses
Availabity

Phase1
+
-

STUDY COMMITTEE B2, JWG B2-17/B4/C1
HVDC Transmission Configurations and Intermediate Stations

Phase 2
Investment Cost
Losses
Availabity

Phase 1
+
+

STUDY COMMITTEE B2, JWG B2-17/B4/C1
HVDC Transmission Configurations and Intermediate Stations

Phase 1
Initial rating ?

Phase 2

Investment Cost: line/stations
Losses
Availabity

+/o
+
o

STUDY...