电力系统自动化2019，Vol.43Issue(5)：167-174,8.DOI:10.7500/AEPS20180725005
分频输电应用于深远海风电并网的技术经济性分析
Technical and Economic Analysis on Fractional Frequency Transmission System for Integration of Long-distance Offshore Wind Farm
摘要
Abstract
Global offshore wind farm is developing towards large-scale, clustered and long-distance deep offshore. The transmission and grid connection of large-scale offshore wind farm with a distance greater than 100 kilometers has become a major focus of offshore wind energy development. A technical and economic evaluation method for systematically evaluating various grid-connected methods is established by analyzing transmission limit and loss of cable and other electrical equipment, using the uniform annual value method and considering equipment investment cost, maintenance cost, loss cost and cable selection. Taking a 400 MW offshore wind farm as an example, the technical and economic comparison of high voltage alternating current (HVAC), high voltage direct current (HVDC) and fractional frequency transmission system (FFTS) is carried out. The demonstration shows that FFTS by reducing the frequency can not only realize the growth of the ampacity of cable, but also significantly reduce the charging current in the AC cable. Therefore, the transmission distance of FFTS increases remarkably, which indicates that FFTS has both technical and economic advantages on large-scale and long-distance offshore wind farm transmission and connection system.关键词
深远海风电并网/高压交流/高压直流/分频输电系统/技术经济分析Key words
long-distance deep offshore wind power/high voltage alternating current (HVAC)/high voltage direct current (HVDC)/fractional frequency transmission system (FFTS)/technical and economic analysis引用本文复制引用
黄明煌,王秀丽,刘沈全,王锡凡,孟永庆,叶荣..分频输电应用于深远海风电并网的技术经济性分析[J].电力系统自动化,2019,43(5):167-174,8.基金项目
国家电网公司总部科技项目"大型深远海风电场高效送出与运行控制关键技术研究" （）
国家自然科学基金资助项目(51677142) （51677142）
This work is supported by State Grid Corporation of China and National Natural Science Foundation of China(No. 51677142). （No. 51677142）
