HVDC Equipment for 800 kV HVDC

abb.com/hvdc

HVDC Equipment for

800 kV HVDC

Brazil-China-India Summit Meeting on

HVDC & Hybrid Systems

Rio de JaneiroJuly 16-18 2006

Gunnar AsplundABB Power Systems

HVDCLudvika, Sweden

Converter options

Series connectedtwelve pulse groups

in each pole

4500- 6400 MW

Parallel twelve pulse groupsper pole

6000-9000 MW

Single twelve pulse groupper pole

3000- 4500 MW

UHVDC- one pole

Exposed to 800 kV dc

Development areas

External insulation:Transmission lines(Converter stations)

Converter transformers, barrier system, cleats and leadsWall bushing, mechanicalTransformer bushings, thermal, electricalSeismic/mechanical questions (very high structures in the DC-yard)Reliability

Insulation coordinationTransformer refencesProject Nominal

dc levelLIWL SIWL DC 2h Polarity

reversalItaipu 600 1800 1500 965 690HQ/NEH 500 1425 1300 762 486Rihand-Delhi 500 1550 1290 800 5683GC 500 1675 1425 810 597

Transformer - 800 kVDesign base Nominal

dc levelLIWL SIWL DC 2h Polarity

reversalItaipu 800 2400 2000 1287 920HQ/NEH 800 2280 2080 1219 778Rihand-Delhi 800 2480 2064 1280 9093GC 800 2680 2280 1296 955

800 kV transformer

Transformer data upper groupTransformer type: Two-

winding converter transformer

Rated power: 248 MVA

Rated voltages: 525/168,4 kV

No-load loss: 170 kW

Load loss (50 Hz): 600 kW

260 tonsWeight

10850 mmLength

3500 mmWidth

4850 mmHeight

Converter transformer

•Prototype manufactured•First round of testing completed:

•AC 800 kV 60 min•AC 900 kV 5 min•DC 1100 kV 60 min•DC 1250 kV 6 h

800 kV HVDC converter transformer and transformer bushings

800 kVdc transformer bushing

• Based on proven design used in 3G projects in China• Hollow core composite insulator• Silicon rubber sheds with proven profile• SF6 enhanced insulation• ”Explosion safe” – no porcelain

Insulation length (indoor) 7,6m

800 kV DC wall bushing

Insulation length outdoor 9mInsulation length indoor 6,7m

• Enlarged 3G-concept• SF6 filled bushing• ”Explosion safe” – no porcelain• Positioning ~10 degrees to horizon beneficial for electrical performance

• Silicon rubber sheds with proven profile

800 kV Wall Bushing

Thyristor Valve Layout

TCU Derivative Feeding Resistor

Thyristor

Saturable ReactorModule

Thyristor Module

DC GradingResistor

Damping Resistors

Damping Capacitors

TCU DerivativeFeeding Capacitor

TCUThyristorControl Unit

ThyristorsThe valve voltage is not decisive for the thyristor. Will be handled by sufficient number of thyristor positions in series. Due to the well defined voltage grading each individual thyristor position has the same electrical stress in an 800 kV valve as in a 500 kV valve! The critical parameter for the thyristors is the short circuit current. This is given by the ratio between rated DC current and transformer reactance

Experience of 14000 5” thyristors

@20°C

3100200420163100Sylmar Replacement Pproject

@20°C

3000200441763000Three Gorges-Guandong, China

-392020033362x100Rapid City

@20°C

3000200341763000Three Gorges-Changzhou, China

-4020200217281100Garabi 2

Brazil

-4020200017281100Garabi 1

Brazil

Overload Current, A

Nominal Current, A

Commis-sioned year

Number of thyristors

Transmitted, MW

Project

One thyristor failed during commercial operation reported (Garabi 2002)

ValveNew valve design to include 800 kV and 6” thyristors

Conceptual design ready

Modular prototype testing ready

Quadruple thyristor valve

Valve hall, quadruple 400 kV Valve

Dimensions valve halls, LxWxH: High voltage group: 46.3x31.8x23.6 m, top of roof 27.3Low voltage group: 35.4x26.6x16.6 m, top of roof 20.3

Hight increase with 3 meter if single 12 pulse bridge for 800 kV

ABB Composite support insulator

Pole arrester

By pass switch

DC disconnector

SPOL 800 kV, picture of the tests at FGH lab, Mannheim

DC harmonic filter capacitor 800 kV

3GC 500 kVDC capacitor

DC-voltage divider

Platform for smoothing reactor

Test voltages for equipment

N.A.1040(3 hrs)

N.A.15181800Thyristor multiple valve

103012351000(one minute)

15181800Wall bushing

N.A.N.A.N.A.15461950PLC capacitor

N.A.N.A.N.A.15461950Disconnecting switch

N.A.N.A.1000(one minute)

15461950Voltage divider

N.A.N.A.N.A.15461950

N.A.N.A.N.A.N.A.2160/2Smoothing reactor, Across

To ground

970125090015181744Transformer bushing, valve side

970125090015181744Converter transformer, Valve side

DCPolarity reversal

DCACRMSSILIEquipment

Test facilities in ABB Sweden (Ludvika)

107514001250DC

100010501000AC

200017501550Switching impulse

280032002000Lightning impulse

Available

TRAFO, kV

Available

STRI, kV

Required

kVTest

External Insulation

DC- LPE (Line Performance Estimator) work ongoing Expert team meetings to establish requirements on 800 kV insulators, ABB, NGK, CEPRI, Sediver, Xinghua University

Requirements for composite insulators agreedMethods for high altitude correction agreed

Pollution test station in operation in YunnanComposite support insulator installed at TSQ site for verificationAll outdoor apparatus can be designed with composite insulators

Next:Evaluate test criteria for composite insulatorsVerification of DC-LPE based on experience from GeShaTests on valve hall clearances in July

Reliability of convertersLarge power blocks ask for extremely high reliability!100 % separation of poles, 3000MW each! Far going separation of groups, 1500 MW each:

Geographical

Mechanical

Electrical

Example:

AC-yard

Auxiliary power

Control

Cabling

AC-filters

Cooling, water supply

Test Circuit

The long term being built at STRI, LudvikaIn operation October 2006

±800 kV, 3000-4500 MW Converter Station

+/- 800 kV 6400 MW station

Indoor DC-yard

Brittle fractures can be found in crystalline rock. The length of the fracture can be supposed to relate to its depth extent, i.e. a 50 km long fracture zone mightextend to the mantle. Suchzones are usually water-bearingand low-resistive.

Ground electrode

2005 2006 2007 2008 2009 2010

Development 800 kV equipmentBushingTransformer modelLong term testing

First commercial+/-800 kV project

Feasibility studyProcurement

System & detailed designManufacture of equipmentErection pole 1Test & commissioning pole 1Commercial operation pole 1Erection pole 2Test & commissioning pole 2Commercial operation pole 2

Design/manufacture/testing

Development of 800 kV equipment and first project execution.

Summary

Project is on schedule

Important knowledge obtained from service experience, calculations and pre-testing and integrated in 800kVdc design

Design for transformer- and wall bushing prototypes ready and tests are ongoing

Manufacturing of prototypes is on-going

800 kV test circuit- civil work ongoing

Project is on track !

HVDC Equipment for 800 kV HVDC

Documents

Synchrophasor Technology is a power full tool in the - · PDF fileThe advent of SATELLITE based time keeping systems advances ... bulk power system for 800 KV HVDC and 1200 KV

· PDF fileJinping ± 800 kV HVDC Transmission ... "Brazil-India-China Summit Meeting on HVDC & Hybrid Systems - ... Voltage above 500 04-2007 PTC)

Development of HVDC circuit breaker standards...HVDC circuit breakers 2011 - 2020 6 Concept thyristor based FR 2014 200 kV Zhoushan CN 2017 160 kV Nanao CN 2018 500 kV Zhangbei CN

Characterization of the voltage non-linearity of a 1200 kV HVDC … · 2020. 2. 18. · Aalto university 1200 kV HVDC divider between 1990 and 2013 for characterizing its voltage

170802 HVDC Solutions for Integration of the …...Power Rating 2000 MW, bipolar Type of Plant HVDC PLUS in full-bridge topology, 340 km Voltage Levels ± 380 kV DC 400 kV AC, 50 Hz

525 kV extruded HVDC cable system Doubling power transmission

Cable systems for HVDC power transmission · 2020-06-29 · 320 kV HVDC cable system pre-qualification test @ KEMA Labs Testing of HVDC Cable systems 03.05.16 5 dummy loop Transition

Smart Grid Devices for Performance Management of High ... · PDF fileSmart Grid Devices for Performance Management of High ... vogue are ± 800 kV HVDC ... capacity of transmission

EPRI Program 162 HVDC Systems · 2019-08-19 · • Prior research indicates 800 kV DC operation is feasible though some R&D is required. • 800 kV DC is considered in China, India,

Capability Profile - Leap Infraasys · Nelamangala 400kV / 220kV (RTPS, Nagajhari, Sharavati etc. 400 kV HVDC Kolar / Talcher 220 kV 400 kV 400 kV Peenya GSS Hoody GSS HAL GSS 66

· PDF file Trendsetting connections ... High-voltage DC transmission systems (HVDC) ... of 800 kV and is a new

800 KV HVDC for Transmission of Large Amount of Power Over Very Long Distances

NordBalt 300 kV HVDC Light submarine (English - pdf ... - ABB · PDF fileThe world’s longest HVDC Light cable NordBalt HVDC Light connection, Sweden-Lithuania - World’s longest

2017-09-06 HVDC – Enabling a stronger, smarter …ejkrause.com.mx/camp17-green/bittecnica17/pow6-Peter...HVDC Light Hällsjön 3 MW ± 10 kV Cross Sound 330 MW ± 150 kV Gotland

Disconnectors and Earthing Switches 36 kV up to 800 kV

Olof Heyman, Vice President, Power Systems, HVDC HVDC Presentation - Ruter … · 2015-08-28 · R&D Dr. Uno Lamm Commercial HVDC 150 kV, Gotland, Sweden Pacific Intertie, USA, 400

Insulation coordination for UHVDC 800 kV - ABB Group · © ABB Power Technologies. Power Systems DC -1 abb.com/hvdc Insulation coordination for UHVDC 800 kV

HVDC converter transformers set new world record for 800 kV

600 kV HVDC LINES AND ELECTRODE LINES - Stoa Social · ±600 kV HVDC LINES AND ELECTRODE LINES by Peixoto, C. A. O. Portela, ... as it is in the case of EHV ac transmission. ... Unlike

An 800 kV HVDC bipole to reinforce a regional ...130.61.195.178/uploads/files/5decd0b6bca2c961986318.pdf · An 800 kV HVDC bipole to reinforce a regional interconnection and integrate