电网技术Issue(1)：288-293,6.DOI:10.13335/j.1000-3673.pst.2015.01.043
大型互联区域电网解列后送端电网频率特性及高频切机方案
Frequency Characteristics of Power Grid at Sending End of Split Large-Scale Interconnected Regional Power Grid and Corresponding Over-Frequency Generator-Tripping Scheme
张志强 1徐友平 2袁荣湘 1唐晓骏 3徐遐龄 2秦晓辉 3吴丽华3
作者信息
- 1. 武汉大学电气工程学院，湖北省武汉市 430072
- 2. 华中电力调度通信中心，湖北省武汉市 430077
- 3. 中国电力科学研究院，北京市海淀区 100192
- 折叠
摘要
Abstract
At present an ultra high voltage (UHV) AC interconnected structure composed of North China power grid with Central China power grid has been formed, and at the beginning stage of the interconnection it is necessary to research the frequency stabilities of North China power grid and Central China power grid after the splitting of the interconnected power grid via the UHV tie line. Based on the dispatching data of Central China power grid, which includes the dispatching data of Sichuan power grid and Chongqing power grid, the analytic expressions of the frequency deviation of large-scale interconnected regional power grid are derived to grasp the highest frequency and the steady state frequency characteristics during the frequency variation; on this basis, by means of constructing equivalent loaded single machine model of Central China power grid the optimal frequency band, the least capacity of the tripped generators and the more appropriate proportions for different tripping rounds during the over-frequency generator tripping in Central China power grid are researched. Finally, an over-frequency generator-tripping scheme suitable for Central China power grid is proposed, and its adaptability is validated by simulation results.关键词
区域电网/频率特性/高频切机Key words
regional power grid/frequency characteristic/over-frequency generator tripping分类
信息技术与安全科学引用本文复制引用
张志强,徐友平,袁荣湘,唐晓骏,徐遐龄,秦晓辉,吴丽华..大型互联区域电网解列后送端电网频率特性及高频切机方案[J].电网技术,2015,(1):288-293,6.
