中国电机工程学报2025，Vol.45Issue(12)：4657-4668,中插10,13.DOI:10.13334/j.0258-8013.pcsee.240424
计及新能源场站调频时延的电力系统频率响应模型及应用
Frequency Response Model and Application of Power System Considering the Frequency Regulation Delay of Renewable Energy Station
摘要
Abstract
As renewable energy units continue to occupy the space of traditional synchronous units,the frequency characteristics of the system are increasingly limited by the frequency regulation performance of renewable energy stations.However,due to the differences in frequency regulation architecture and technical means,the frequency regulation delay of different stations is quite different,and the relationship between system frequency characteristics and frequency regulation delay is fuzzy.In this paper,the frequency characteristics of the power system including the frequency regulation delay of the renewable energy station are analyzed.On the basis of describing the typical structure and control mechanism of frequency regulation control,the components of the response delay time are revealed.Then,the response delay time is added into the fast frequency regulation control model of renewable energy power stations as a delay link,and first-order Taylor and Pade are used to equivalently represent the delay link and quantify the error,and the applicable range of the two equivalent methods is clarified.By exploring the aggregation equivalence rules of frequency regulation of renewable energy units,a simplified aggregation model of frequency regulation of generating units taking into account the frequency regulation model,the influence of frequency control delay of renewable energy stations is formed.Finally,the proposed model is verified by hardware in loop test platform,and based on the proposed time domain analytical regulation delay on the frequency characteristics of power system is analyzed from the inertia level,the proportion of new energy generation and the standby resources of synchronous machine frequency regulation.The test results show that the frequency characteristics obtained by the proposed power system frequency response model are in good agreement with the actual results,and the frequency characteristics analysis conclusion of the proposed model is reliable,which provides a theoretical reference for the formulation of rapid frequency regulation technical indicators and evaluation schemes of renewable energy stations.关键词
新能源场站/快速调频/频率特性/控制时延/频率响应模型Key words
renewable energy station/fast frequency regulation/frequency characteristics/control delay/frequency response model分类
信息技术与安全科学引用本文复制引用
董玮,施志明,张晓琳,陈志磊,苏建徽..计及新能源场站调频时延的电力系统频率响应模型及应用[J].中国电机工程学报,2025,45(12):4657-4668,中插10,13.基金项目
国家电网有限公司科技项目(5100-202255376A-2-0-ZN). Science and Technology Project of State Grid Corporation of China(5100-202255376A-2-0-ZN). （5100-202255376A-2-0-ZN）
