电力系统自动化2025，Vol.49Issue(17)：34-43,10.DOI:10.7500/AEPS20240408004
计及系统谐振稳定性和运行可靠性的海上风电分频送出规划
Fractional Frequency Transmission Planning for Offshore Wind Power Considering Resonance Stability and Operation Reliability of System
摘要
Abstract
Fractional frequency transmission provides a new option for large-scale,long-distance offshore wind power transmission by reducing the frequency and improving the line transmission capacity.Aiming at the impact of the high proportional renewable energy and power electronics equipment on the resonance stability and reliability of the system,and closing to the actual engineering needs,a fractional frequency transmission planning method for offshore wind power is proposed.Considering the economy,resonance stability,and reliability,the method makes fractional frequency grid connection scheme for offshore wind power.Firstly,the fractional frequency transmission system of offshore wind power and planning model of onshore industrial frequency power grid,resonance stability evaluation model,and operation reliability evaluation model are introduced.Secondly,taking the offshore wind power development in a coastal area of China as a case study,wind power transmission and onshore power grid expansion schemes are planed,and the engineering verification is carried out.Furthermore,the technical economy of three schemes of power frequency AC,flexible DC,and fractional frequency transmission are compared,and the optimal solution is selected.The results show that in the case scenario,the technical economy of fractional frequency transmission has certain advantages.关键词
海上风电/分频输电/电网规划/谐振稳定性/可靠性Key words
offshore wind power/fractional frequency transmission/grid planning/resonance stability/reliability引用本文复制引用
蔡仲启,魏成骁,王秀丽,杨昆,张海涛..计及系统谐振稳定性和运行可靠性的海上风电分频送出规划[J].电力系统自动化,2025,49(17):34-43,10.基金项目
中国南方电网有限责任公司科技项目(030400KK52220025). This work is supported by China Southern Power Grid Company Limited(No.030400KK52220025). （030400KK52220025）
