Jicable HVDC16 Workshop Topic 4 Submarine HVDC Links Workshop - - PowerPoint PPT Presentation

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Jicable HVDC16 Workshop Topic 4 Submarine HVDC Links Workshop - - PowerPoint PPT Presentation

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Jicable HVDC16 Workshop Topic 4 Submarine HVDC Links Workshop Jicable HVDC16, Friday, August 26, 2016 - Paris - France Submarine HVAC and HVDC cables Submarine cables could make use of different technologies, depending on specific

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  • Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

Jicable HVDC’16 Workshop Topic 4

Submarine HVDC Links

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  • Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

Submarine HVAC and HVDC cables

Submarine cables could make use of different technologies, depending on specific choices of system operators. In general:

  • Long connections m ake use of DC transm ission
  • Large pow ers require high voltages
  • Long HVAC connections suffer pow er de-rating vs. length
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  • Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

Submarine power cable projects worldwide

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  • Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

GLOBAL EXPERI ENCE – HV SUBMARI NE CABLE SYSTEMS

Distribution of Projects MI and Extruded Cables MI Cables only Extruded Cables only

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  • Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

Submarine HVDC Cable Technologies

NOTE 1: Submarine cables may have different armouring design mainly depending on water depth NOTE 2: Rating depends on ambient and installation parameters

XLPE

  • ±600 kV
  • 3000 MW
  • VSC any voltage

LCC up to 250 kV P-Laser

  • ±525 kV
  • 2700 MW
  • Both LCC and VSC

MI paper

  • ±525 kV
  • 2400 MW
  • Both LCC and VSC

MI -PPL

  • ±700 kV
  • 3400 MW
  • Both LCC and VSC
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  • Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

The Western Link HVDC Project

Main features

 Largest Cable Contract ever awarded  Highest Voltage DC System ever (600 kV with PPL insulation)  Highest Power of any long length DC system (2250 MW continuous, 2400 MW 6 hour

  • verload)

 Overall route length approx. 422 km (37 km underground, 385 km submarine)

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  • Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

SA.PE.I (Sardinia-Peninsula Italiana)

 RATED POWER 1000 MW

(bipolar configuration, 2x500MW)  RATED VOLTAGE 500 kV DC  ROUTE LENGTHS:

  • Submarine

2x425 km

  • Land

2x15 km  MAX WATER DEPTH 1650 m  CABLE TYPE AND SIZE Paper, MI  POLE 1 IN SERVICE SINCE Dec 2008  POLE 2 IN SERVICE SINCE Oct 2010

PROJECT MAI N FEATURES

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  • Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

North Sea Link HVDC Interconnector 1400MW

Main features

 At 740Km it is the longest ever HVDC Link with subsea / land cables  Prysmian has been awarded Lot 2 and Lot 3, route length 2 x 470Km  Proven Prysmian mass impregnated paper cable, nominal DC voltage ±515 kV  2.5Km land cables to the UK converter station, converter is based on VSC

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  • Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

TRANS BAY HVDC CABLE PROJECT - San Francisco bay

 RATED POWER 400 MW  RATED VOLTAGE 200 kV DC  ROUTE LENGTHS: 85 km  CABLE INSULATION Extruded  IN SERVICE SINCE 2010

 The first 200 kV HVDC extruded cable in operation

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  • Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

German HVDC Projects - Prysmian

HVDC Submarine & Land Connections in the German North Sea

  • Approx. 2000 km HVDC cable, ~ 650 km of which are land cables, with more than 900 joints

Project Voltage (kV) Power

BorWin2 300 kV 800 MW HelWin1 320 kV 864 MW HelWin2 250 kV 576 MW SylWin1 320 kV 690 MW BorWin3 320 kV 900 MW DolWin3 320 kV 900 MW

Source: TenneT

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  • Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

Main features

 Submarine section

  • route length 310 km
  • max. burial depth

13 m

  • max. water depth

50 m

  • minimum burial depth requirement

(2K criteria)  Land section

  • route length 21 km
  • max. burial depth

1,3 m

COBRAcable HVDC interconnection

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  • Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

Land Systems

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  • Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

Main features 2000 MW Power Rating 65 km route length Longitudinally Welded Aluminum Sheath (WAS) 320 kV XLPE cable with 2500 mm² Cu conductor Long lengths (Up to 2190 m)

INELFE 320 kV DC Spain-France Interconnection

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  • Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

320 kV DC France-Italy Interconnection

Main features Nominal voltage: ±320 kVdc Rated power: 2x600 MW (two bipoles, 4 cables) Al conductor 2500 mm2 with extruded insulation 190 km fully underground Under construction

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  • Workshop Jicable HVDC’16, Friday, August 26, 2016 - Paris - France

Thank You for Your Attention !