Title :
Cost evaluation of EHVAC offshore wind farm using intermediate shunt compensation: a parametric study
Author :
Lauria, S. ; Maccioni, M. ; Palone, F. ; Schembari, M.
Author_Institution :
DIAEE, “Sapienza” Univ. of Rome, Rome, Italy
Abstract :
A double-circuit line using commercially available 400 kV-50 Hz three-core XLPE-insulated submarine cables is considered for the evacuation of up to 1 GW offshore wind generation. Three transmission distances are studied, namely 80 km, 100 km and 160 km, evaluating conventional (line-end) as well as mid-line shunt compensation. Operating envelopes and transmission losses are assessed, showing the low losses at EHVAC cable transmission and the beneficial effects of midline compensation, which allows covering distances up to 180 km. Results show that the proposed transmission solution guarantees very low full-load losses, not exceeding 1.5%, 2% and 3% for the simulated cases. Lastly, a technical-economic comparison based on Dutch North Sea wind producibility data and new German feed-in tariffs, is subsequently carried out in order to assess the capitalized losses of the different EHVAC solutions.
Keywords :
XLPE insulation; offshore installations; power cable insulation; power generation economics; power system interconnection; power transmission lines; submarine cables; tariffs; wind power plants; Dutch North Sea wind producibility; EHVAC offshore wind farm interconnection cost evaluation; German feed-in tariffs; distance 80 km to 160 km; double circuit line; frequency 50 Hz; intermediate shunt compensation; midline shunt compensation; offshore wind generation; three-core XLPE insulated submarine cable; transmission losses; voltage 400 kV; Cost assessment; HVAC cables; Inductive shunt compensation; Offshore Wind Farms; Submarine power transmission;
Conference_Titel :
AC and DC Power Transmission, 11th IET International Conference on
Conference_Location :
Birmingham
Print_ISBN :
978-1-84919-982-7
DOI :
10.1049/cp.2015.0028
