电力系统自动化2026，Vol.50Issue(7)：142-152,11.DOI:10.7500/AEPS20250410001
多时间尺度暂态频率稳定影响度评估与优化决策方法
Impact Assessment and Optimization Decision Method for Multi-timescale Transient Frequency Stability
摘要
Abstract
High-penetration renewable energy power systems lack control performance indicators for various types of frequency regulation devices in the context of transient frequency stability,making it difficult to effectively achieve the coordinated and optimization decision and control of multiple measures under the spatio-temporal distribution characteristics of frequency after large power grid disturbances.This paper proposes a calculation method for control performance indicators that meets the transient frequency stability control requirements of multi-timescale devices.The method requires only a single time-domain simulation to determine the impact degree of all control nodes in the power grid during different periods of the transient process.The calculation period of the impact degree is determined according to the timescale of the active power-frequency dynamic response of the devices,and the dominant time point set of each node is determined based on the frequency of each monitoring node within the period.On this basis,the active power sensitivity of frequency regulation devices to the active power inflow of connected branches during the dynamic simulation process is used as an approximate frequency variation index to further calculate the transient frequency stability impact degree of control nodes on dominant nodes within the period.Finally,the above calculation method of impact degree is applied to the optimization decision of system transient frequency stability control,and its effectiveness and accuracy are verified through an electromagnetic transient simulation platform of a high-penetration renewable energy power system constructed based on an actual power grid.关键词
新能源/暂态频率稳定/多时间尺度/调频/影响度Key words
renewable energy/transient frequency stability/multi-timescale/frequency regulation/impact degree引用本文复制引用
徐泰山,鲍颜红,吴峰,杜迅,张金龙..多时间尺度暂态频率稳定影响度评估与优化决策方法[J].电力系统自动化,2026,50(7):142-152,11.基金项目
国家自然科学基金资助项目:"新型电力系统调度计划决策基础理论与方法"(U24B6009). This work is supported by National Natural Science Foundation of China(No.U24B6009). （U24B6009）
