电力工程技术2026，Vol.45Issue(8)：14-23,92,11.DOI:10.12158/j.2096-3203.2026.08.002
基于风电机组超速减载与直流协同的送端电网频率控制策略
Coordinated frequency control of sending-end grids using over-speed deloading of wind turbines and DC transmission systems
摘要
Abstract
To address the problems of limited power reserve and difficult high-frequency control in sending-end grids with a high penetration of renewable energy,a coordinated frequency control strategy based on wind turbine overspeed deloading and DC frequency limit controller(FLC)is proposed.Firstly,a single-machine equivalent model is established by considering the participation of wind turbines and the DC system in grid frequency control.Then,dynamic response indices of frequency stability are obtained through time-domain analytical calculation.Next,the virtual inertia coefficient and droop coefficient of the wind turbine overspeed deloading control,together with the control parameters of the DC FLC,are optimally tuned with the objective of improving the overall dynamic frequency response.After that,different coordinated frequency control strategies are designed for different disturbance power levels.Finally,the effectiveness of the proposed strategy is verified through case studies.It is shown that the proposed strategy can fully exploit the frequency regulation potential of wind turbines,effectively reduce frequency deviations in the sending-end grid under abnormal operating conditions,and improve the frequency stability of the sending-end grid.关键词
送端电网/高频控制/风电机组/超速减载/频率限制控制器(FLC)/频率协同控制Key words
sending-end grid/high-frequency control/wind turbines/over speed deloading/frequency limit controller(FLC)/coordinated frequency control分类
信息技术与安全科学引用本文复制引用
郝飞,刘吉臻,王玮,刘克天,都成刚..基于风电机组超速减载与直流协同的送端电网频率控制策略[J].电力工程技术,2026,45(8):14-23,92,11.基金项目
国家重点研发计划资助项目(2024YFB2408403) （2024YFB2408403）
内蒙古自治区"科技突围"项目(2024KJTW0017) （2024KJTW0017）
