南方电网技术2024，Vol.18Issue(3)：83-92,10.DOI:10.13648/j.cnki.issn1674-0629.2024.03.009
基于风电机组频率主动支撑的多时间尺度调频控制策略
Multi-Time Scale Frequency Regulation Control Strategy Based on Frequency Active Support of Wind Turbines
摘要
Abstract
Aiming at the problems of system inertia reduction and frequency regulation capacity reduction at the sending-end of large-scale wind power via the ultra-high voltage direct current(UHVDC)transmission system,a multi-time scale coordinated control strategy of doubly-fed wind turbines and traditional synchronous units jointly supporting the sending-end system frequency is proposed,so as to effectively improve the stability of system frequency.According to the frequency regulation reserve capacity of synchronous units and disturbance power,the sending-end system frequency regulation demand in different scenarios is analyzed,and the multi-time scale frequency regulation control strategy based on frequency active support of wind turbines considering the frequency regulation dead zone is proposed,and the coordination and cooperation between variable speed control and propeller distance angle control are realized through the reasonable design of the limiting link and switching logic.And based on the reserve capacity of traditional synchronous units,the frequency regulation dead zone value of doubly-fed wind turbines is designed,so that it can adaptively switch the inertia support and primary frequency regulation for different scenarios,and realize the optimal utilization of frequency regulation resources.The dynamic response process of doubly-fed wind turbine and synchronous machine participating in frequency regulation is analyzed,which further proves its superiority.Finally,the large-scale wind power via the UHVDC transmis-sion system simulation model is built based on RTLAB real-time digital simulation platform,which verifies the effectiveness of the proposed control strategy.关键词
双馈风电机组/惯量支撑/一次调频/协调控制/频率稳定性Key words
doubly-fed wind turbines/inertia support/primary frequency regulation/coordinated control/frequency stability分类
动力与电气工程引用本文复制引用
李成翔,杜艳丽,朱益华,余佳微,江守其,刘宇嫣..基于风电机组频率主动支撑的多时间尺度调频控制策略[J].南方电网技术,2024,18(3):83-92,10.基金项目
广东省新能源电力系统智能运行与控制企业重点实验室开放基金资助项目(GPKLIOCNEPS-2022-KE-03). Supported by Guangdong Provincial Key Laboratory of Intelligent Operation and Control for New Energy Power System(GPKLIOCNEPS-2022-KE-03). （GPKLIOCNEPS-2022-KE-03）
