Operating envelopes of the Malta-Sicily 245 KV-50 HZ cable

Author

Lauria, S. ; Palone, F.

Author_Institution

Univ. of Rome “Sapienza”, Rome, Italy

fYear

2012

fDate

9-12 Sept. 2012

Firstpage

287

Lastpage

292

Abstract

The Malta-Sicily 245 kV-50 Hz interconnector will be the longest HVAC cable in the world, delivering up to 225 MW over a single 3-core cable. Reactive power support to the Maltese network is also possible, using a variable, asymmetric shunt compensation scheme. The paper presents the final structure of the link and main design data. The procedure for obtaining operating envelopes and capabilities of the inhomogeneous cable line in the (Q,P) plane, are presented. Results show that the degree of freedom introduced by variable shunt compensation allows to extend significantly the capability in terms of reactive power support. Lastly, losses are calculated for the entire operating envelope, showing the overall transmission efficiency to be above 96% at full load.

Keywords

compensation; losses; marine power systems; power cables; reactive power; submarine cables; HVAC cable; Malta-Sicily cable; Malta-Sicily interconnector; Maltese network; asymmetric shunt compensation scheme; frequency 50 Hz; inhomogeneous cable line; operating envelopes; reactive power; reactive power support; single 3-core cable; transmission efficiency; variable shunt compensation; voltage 245 kV; Cable insulation; Inductors; Integrated circuit interconnections; Propagation losses; Reactive power; Shunts (electrical); Underwater cables; HV ac cables; reactive power; shunt compensation; submarine power transmission;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conference and Exhibition (ENERGYCON), 2012 IEEE International

Conference_Location

Florence

Print_ISBN

978-1-4673-1453-4

Type

conf

DOI

10.1109/EnergyCon.2012.6347769

Filename

6347769