电力系统保护与控制2025，Vol.53Issue(14)：49-58,10.DOI:10.19783/j.cnki.pspc.241375
基于系统功率扰动程度的风电机组主动频率支撑控制策略
Wind turbine active frequency support control strategy based on system power disturbance severity
摘要
Abstract
Wind power participation in system frequency regulation is a key measure for enhancing the frequency security and stability of power systems with high renewable energy penetration.However,existing wind turbine frequency regulation strategies struggle to cope with diverse power disturbances in such systems and fail to fully utilize wind turbines'fast frequency support capabilities.This paper develops a generalized electromagnetic transient model for frequency regulation control of direct-drive wind turbines and examines their dynamic behaviors under current frequency regulation strategies to identify the factors that limit their regulation capability.Building on this analysis,an improved system frequency response model that incorporates wind power frequency regulation is established to assess the severity of system power disturbances.A novel active frequency support control strategy for wind turbines is then proposed based on this assessment.The strategy evaluates disturbance severity using the maximum rate of change of frequency(RoCoF)following a disturbance and selects different combinations of frequency control methods according to the wind turbine's operational mode.This allows wind turbines to effectively provide active frequency support while significantly reducing the risk of second frequency dips.Simulation results demonstrate that compared with fixed-parameter and traditional adaptive frequency control strategies,the proposed strategy offers superior frequency regulation performance under varying levels of disturbance,demonstrating its effectiveness.关键词
风电机组/减载备用控制/虚拟惯量控制/下垂控制/短时增发控制/转速恢复控制Key words
wind turbines/de-loading reserve control/virtual inertia control/droop control/short-time incremental control/rotor speed recovery control引用本文复制引用
金泳霖,戈阳阳,晁璞璞,马欣彤,曾鹏荃,张睿浩,李卫星..基于系统功率扰动程度的风电机组主动频率支撑控制策略[J].电力系统保护与控制,2025,53(14):49-58,10.基金项目
This work is supported by the Science and Technology Project of State Grid Corporation of China(No.2023ZX-18). 国家电网公司科技项目资助(2023ZX-18) （No.2023ZX-18）
