电测与仪表2024，Vol.61Issue(4)：132-140,9.DOI:10.19753/j.issn1001-1390.2024.04.019
基于分频器理论的新能源电网暂态频率稳定分析方法
A transient frequency stability analysis method for new energy grid based on frequency divider theory
摘要
Abstract
During the analysis of frequency related parameters of transmission and distribution lines,the time-domain sim-ulation method which fixed the frequency as the rated value is a common method for the transient frequency stability analy-sis of power systems.However,as the continuous increasing proportion of new energy,the spatial and temporal distribu-tion difference of each node of the power grid is more significant,and the existing traditional numerical differential fre-quency analysis method is difficult to guarantee the analysis accuracy.Therefore,a transient frequency analysis method of novel power system based on frequency divider theory is proposed in this paper.Compared with the traditional frequency analysis method,the node frequency obtained by this method can change with the variation of electrical distance between nodes,and the transient conditions can be described more accurately in the transient process,and the real-time frequency of each node can be accurately obtained.Through the establishment of a simple three-terminal system containing wind power,the realization method based on the frequency divider theory is analyzed,and the correctness and superiority of the proposed method are verified by simulation,which can provide a new idea and reference scheme for frequency stability a-nalysis and control design of novel power systems.关键词
暂态频率稳定/新能源电网/分频器理论/分析方法Key words
transient frequency stability/new energy grid/frequency divider theory/analysis method分类
信息技术与安全科学引用本文复制引用
雷傲宇,苏婷婷,梅勇,刘子祺,王裕,吴为..基于分频器理论的新能源电网暂态频率稳定分析方法[J].电测与仪表,2024,61(4):132-140,9.基金项目
国家自然科学基金资助项目(62273104) （62273104）
中国南方电网公司科技项目(0000002022030101FK00007) （0000002022030101FK00007）
广东省自然科学资基金资助项目(2021A1515012398,2022A1515011079) （2021A1515012398,2022A1515011079）
