new france spain interconnection project … · new france‐spain interconnection project ......

NEW FRANCE‐SPAIN INTERCONNECTION PROJECT

Madrid, 9 December 2010

1SWE ERI ‐ 7th IG meeting

GENERAL DESCRIPTION (1/2)HVDC double circuit

2 x 1000 MW

2 i d d ± 320 kV DCGAUDIEREGAUDIERE

2 independent systems ± 320 kV DC

(No need of MV cable for earthing connection)

65 km length (32 km Spain + 33 km France)

BAIXASBAIXAS

65 km length (32 km Spain 33 km France)

8 km tunnel (1 km ES + 7 km FR), 3,5 m inner F

Rest by independent trenches: 2 x (31 km ES + k )

STA LLOGAIA

HVDC

STA LLOGAIA

HVDC 26 km FR)

Extruded cables: 4 x (32 km ES + 33 km FR)

Converter stations (AC/DC)

RAMISRAMIS

Converter stations (AC/DC)

VSC technology (Voltage Source Converter)

Santa Llogaia: 2 converter stations

BESCANOVIC

RIUDARENES

BESCANOVIC

RIUDARENES

Baixas: 2 converter stations

AC substations are not part of the project

2

RIUDARENESRIUDARENES Baixas AC substation: existing

Santa Llogaia AC substation: to be doneSWE ERI ‐ 7th IG meeting

GENERAL DESCRIPTION (2/2)( )

3CNE‐CRE‐ERSE. 7th IG meetingSWE ERI ‐ 7th IG meeting

VSC TECHNOLOGY vs LCC (1/2)( )LCC: Line Commutated Converters

Based on thyristors:

Only start up control (no shut down control)

Current flow only in one direction power flow reversed only by reversing the voltage polarity

A ti t l (d di th th i t fi i l li d th t k lt )Active power control (depending on the thyristors firing angle applied on the network voltage)

AC network voltage must be available

Reactive power consumption (no reactive power control)

VSC: Voltage Source Converter

Based on IGBTs:Based on IGBTs:

Start up and shut down control

Current flow bidirectional voltage polarity does not need to be reversed to change the power flow direction

Active and reactive power independent controls (based on the control of each IGBT to be conducing or blocked: phase angle and module of the voltage is chosen to build the required voltage signal in order to get the P and Q order)

AC network voltage is not required (just a voltage reference is needed) Black‐start capability


VSC TECHNOLOGY vs LCC (2/2)( )

Advantages Key featuresI d d t t l f ti d R t t h l• Independent control of active and reactive power per system

• Black-start capability• Possibility to feed a passive network

• Recent technology• Rated power of the former projects is

under 1000MW (up to 400MW for NordEON HVDC link)• Possibility to feed a passive network

• Power flow reversal capability without polarity reversal on voltage(since the current is able to be

NordEON HVDC link)• Extruded cables tested up to 320 kV• Losses values for converter stations

raising at around 1,1 – 1,7 % for each o tage(s ce e cu e s ab e o bebidirectional through IGBTs)

• Space reduction (approx 40% less than LCC)

a s g a a ou d , , % o eacconverter station

• Complexity of the valve control system

• AC filters limited or unnecessary • Standard transformers (lower harmonics

level)C i d i l l• Continuous and precise voltage control

• No minimum active power limit• No minimum Scc requirement

N i k f lt

5

• No risk of overvoltages

SWE ERI ‐ 7th IG meeting

PRELIMINARY CONVERTERS LAYOUT: Under tender analysis (1/2). Santa Llogaia


PRELIMINARY CONVERTERS LAYOUT: U d d l i (2/2) B iUnder tender analysis (2/2). Baixas

≈225 m

0 m

B i

≈ 170 Baixas

Converter Station


INTERCONNECTION ROUTE:SPANISH SIDE FROM SANTA LLOGAIA TO THE TUNNEL

Tunnel ends

Santa LlogaiaSanta LlogaiaConverter Station


TUNNEL: Longitudinal section


TUNNEL: Cross sectionServicios auxiliares

3 5 m3,5 m


TRENCHES: Cross section

PERMANENT OCCUPATION 4 7PERMANENT OCCUPATION = 4 ÷ 7 m

0,5 m

2‐5 m

0,5 m 0,5 m 1 m


GENERAL PLANNING30/06/10 E d f t h i l l i f bl d b i i f i l ti ti30/06/10 End of technical analysis for cables and beginning of commercial negotiations

31/07/10 End of technical analysis for converters and beginning of commercial negotiations

23/08/10 Reception of tunnel tenders

30/09/10 End of “Short Term Test” for cables – Tests evaluation

31/10/10 Report on technical and commercial evaluation for converters and cables

31/11/10 Report on technical and commercial evaluation for tunnel

31/12/10 Purchasing order for converters, cables and tunnel

31/12/10 DIA permission (Spanish side)

28/02/11 DUP permission (French side). Land purchasing is began/ / p ( ) p g g

31/03/11 Trenches bid

30/06/11 End of cables testing

30/09/11 End of land purchasing and ocupational agreements30/09/11 End of land purchasing and ocupational agreements

30/09/11 Trenches contract award

01/10/11 Beginning of works for trenches, converters and tunnel

30/06/12 E d f k f t h d di ti l d illi30/06/12 End of works for trenches and directional drillings

30/06/13 End of works for tunnel

31/12/13 End of Off load testing of the interconnection (voltage testing) and Commissioning

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30/06/14 On load testing – commercial operation (possible from February, depending on network availability for testing)


ACCOMPLISHED MILESTONES UP TO NOW

April 2009 Delivery of the mini‐specifications for a call for feasibility studies, for different technologies (VSC ‐ LCC converters, extruded or mass impregnated cables), in both technological and economical aspects

June 2009 Reception of the feasibility studies for converter stations and cables

June – August 2009 Analysis of the feasibility studies (converter stations and cables)June August 2009 Analysis of the feasibility studies (converter stations and cables)

August 2009 Comparative between technologies (VSC and LCC converter stations) VSC converters / extruded cables chosen

Up to Nov 2009 Preliminary studies for the interconnection route

December 2009 Delivery of the Specifications for call for tender of converter stations and cables

September, 2009 Delivery of the Tender Rules / Purchasing strategy for converters and cables admissibility

February 2010 Basic Project for the call for tender of the tunnel

February 2010 Delivery of the Official Pre‐projects for Santa Llogaia converter station and Spanish cables

March 2010 Delivery of the Spanish Environmental Study

March 2010 Processing of the Official Pre‐projects for Santa Llogaia converter station and Spanish cables and Spanish Environmental Study, in order to ask for the DIA permission for Spanish side

January – Abril 2010 Clarifications to questions and comments coming from the suppliers regarding converter specificationsy q g pp g g p

April 2010 Reception of the converter stations and cables tenders

April 2010 Final cables requirements for the tunnel design

June – July 2010 Writing of an Evaluation Criteria for losses and PQ capability within converter stations

April – June 2010 Analysis of the cables technical offers / Clarifications with cables suppliers

April – August 2010 Analysis of the converter stations technical offers / Clarifications with converter stations suppliers

October 2010 Specification for a procedure for future measurements/verifications of losses and additional PQ data providedby the converter stations suppliers

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by the converter stations suppliers

August, 2010 Reception of tunnel offers


new france spain interconnection project … · new france‐spain interconnection project ......

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