广东电力2018，Vol.31Issue(5)：74-79,6.DOI:10.3969/j.issn.1007-290X.2018.005.012
超临界机组调门快关提升暂态稳定性影响因素分析
Analysis on Influence Factors of Fast Valving of Control Valve of Supercritical Unit on Promoting Transient Stability
摘要
Abstract
In order to quantitatively analyze influences of system parameters at the electrical side and operating conditions on fast valving function of the control valve and provide theoretical basis for optimization on fast valving setting of the super-critical unit as well as promote operation reliability and safety of the power grid,the paper dose research on No.1 unit in Guizhou Xingyi power plant and builds a source-grid hybrid simulation model including steam turbine,generator,excitation system and equivalent power grid on the basis of PSCAD/EMTDC simulation platform. It calculates faulted critical clearing time which is taken as the transient angle stability index by simulation under different influence factors and analyzes impacts of transmission line length,active power output and reactive power output of the generator,short circuit fault types,delay of fast valving on promoting transient stability. It finally draws a conclusion that there is a better linear regression relation-ship between the relative percentage of faulted critical clearing time and reciprocal of faulted short-circuit capacity.关键词
调门快关/暂态功角稳定/超临界机组/数值仿真/PSCAD/EMTDCKey words
fast valving of control valve/transient angle stability/supercritical unit/numerical simulation/PSCAD/EMTDC分类
信息技术与安全科学引用本文复制引用
邓彤天,钟晶亮,邱一苇,吴浩,陈传识,李蔚..超临界机组调门快关提升暂态稳定性影响因素分析[J].广东电力,2018,31(5):74-79,6.基金项目
贵州电网有限责任公司科技项目(GZDJY-16-03-11 ) （GZDJY-16-03-11 ）
