中国电力2026，Vol.59Issue(8)：124-137,14.DOI:10.11930/j.issn.1004-9649.202605078
远海风电柔直送出系统无通信主动频率支撑控制策略
Communication-free active frequency support control strategy for offshore wind power VSC-HVDC transmission systems
摘要
Abstract
To address the problem of insufficient frequency perception accuracy caused by active power coupling inter-ference on frequency information mapped by DC voltage in communication-free active frequency regulation of offshore wind power systems transmitted via flexible DC transmission,this paper proposes a communication-free active frequency support control strategy.Firstly,a dynamic analytical model is constructed to quantitatively reveal the inherent coupling mechanism between active power input fluctuations and DC voltage deviations,and a voltage-power coupling analysis framework is established.Secondly,a communication-free active frequency support strategy based on real-time power-voltage observation and feedforward compensation is proposed.Finally,a simulation model of the communication-free active frequency regulation system for offshore wind power via flexible DC transmission is built in Matlab/Simulink for simulation verification.The simulation results show that the proposed strategy can effectively suppress the interference of power transmission variations on frequency signals and markedly improve the accuracy of offshore-side perception for onshore grid frequency.The proposed strategy enhances the system's active frequency support capability while ensuring stable dynamic response,which provides a feasible solution for communication-free frequency regulation of offshore wind power.关键词
远海风电/柔性直流输电/无通信主动调频/频率支撑/卡尔曼状态观测Key words
offshore wind power/VSC-HVDC/communication-free active frequency support/frequency support/Kalman filter state observation引用本文复制引用
张磊,武琦程,王镜毓,蔡俊文,袁丹青,何梓霄..远海风电柔直送出系统无通信主动频率支撑控制策略[J].中国电力,2026,59(8):124-137,14.基金项目
This work is supported by National Natural Science Foundation of China(No.62233006),Science and Technology Project of SGCC(No.52110425001F-021-ZN). 国家自然科学基金重点资助项目(62233006) （No.62233006）
国家电网有限公司科技项目(52110425001F-021-ZN). （52110425001F-021-ZN）
