DocumentCode :
602436
Title :
The Malta-Sicily EHV-AC interconnector
Author :
Giannuzzi, G.M. ; Palone, F. ; Rebolini, M. ; Vassallo, J. ; Zaottini, R.
Author_Institution :
TERNA Rete Italia Rome, Rome, Italy
fYear :
2012
fDate :
1-3 Oct. 2012
Firstpage :
1
Lastpage :
6
Abstract :
The Malta-Sicily 225 MW cable (20 km underground and 100 km submarine) line will be the longest 245 kV ac cable system in the world. The interconnector, which will synchronously connect Malta to the ENTSO-E system, is expected to be in service by the end of year 2013 and a duplicate link is foreseen in year 2016. The innovative connection scheme allows mutual reactive power support and steady-state voltage decoupling between Sicilian and Maltese network by use of joint operation of autotransformer (ATRs) with OLTCs and variable shunt reactors (VSRs). The paper presents main features of the link both from the technical and the environmental point of view; voltage stability and electro-magnetic transient studies are also dealt with in order to assess dynamic performances of the interconnected networks of Malta and Sicily. Losses estimates are also reported, showing that overall transmission losses are lower than 4% at full load, which makes the ac solution competitive with state-of-the-art HVDC-VSC systems.
Keywords :
autotransformers; on load tap changers; power system dynamic stability; power system interconnection; power transmission lines; reactive power; submarine cables; underground cables; AC cable system; ATR; EHV-AC interconnector; ENTSO-E system; HVDC-VSC systems; Malta; OLTC; Sicily; VSR; autotransformer; electromagnetic transient studies; mutual reactive power support; on load tap changers; power 225 MW; size 100 km; size 20 km; steady state voltage decoupling; submarine cable; underground cable; variable shunt reactors; voltage 245 kV; voltage stability; HV ac cables; reactive power; shunt compensation; submarine power transmission;
fLanguage :
English
Publisher :
iet
Conference_Titel :
Power Generation, Transmission, Distribution and Energy Conversion (MEDPOWER 2012), 8th Mediterranean Conference on
Conference_Location :
Cagliari
Electronic_ISBN :
978-1-84919-715-1
Type :
conf
DOI :
10.1049/cp.2012.2061
Filename :
6521903
Link To Document :
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