电气传动2025，Vol.55Issue(4)：56-65,10.DOI:10.19457/j.1001-2095.dqcd25644
含大规模新能源接入的送端电网频率响应时空分布特性分析
Analysis on the Spatiotemporal Distribution Characteristics of the Frequency Response in Large-scale New Energy Access Sending-end Power Grid
摘要
Abstract
The development of modern power systems with wide span,low inertia,and complex structure makes the frequency stability problem increasingly prominent,and the spatial-temporal distribution characteristics of frequency are distinct.Taking the actual power grid as the object,the impacts of large-scale new energy access and DC power control on the grid frequency response under disturbances and the characteristics of frequency spatial-temporal distribution were analyzed.Firstly,based on the detailed time-domain simulation model,the causes of the spatial-temporal distribution of node frequency were discussed from the perspective of the distribution differences of disturbed power,inertia,and frequency regulation resources.The system-level and node-level frequency response indicators that reflect the overall trend and distribution differences of grid frequency response were proposed.Then,the impact mechanisms of factors such as the new energy power proportion,the distribution of synchronous,the primary frequency regulation of new energy,and DC frequency limit control on the grid frequency response under disturbances were analyzed.Finally,through simulation results of real power grid cases,the impact of various factors on the grid frequency response and its spatial-temporal distribution characteristics was quantitatively analyzed.关键词
电力系统/暂态频率响应/时空分布/新能源接入/功率扰动Key words
power system/transient frequence response/spatiotemporal distribution/new energy access/power disturbance分类
动力与电气工程引用本文复制引用
马遵,陈灏颖,邓灿,陈勇,管霖..含大规模新能源接入的送端电网频率响应时空分布特性分析[J].电气传动,2025,55(4):56-65,10.基金项目
国家自然科学基金(52077080) （52077080）
云南电网有限责任公司科技项目(056200KK52220044) （056200KK52220044）
