广东电力2017，Vol.30Issue(12)：81-85,5.DOI:10.3969/j.issn.1007-290X.2017.012.013
一起区域外机组引发的低频振荡对广东电网的影响
Influence of Low-frequency Oscillation Caused by Outside Area Unit on Guangdong Power Grid
摘要
Abstract
Low-frequency oscillation has characteristics of wide influence range and large destructive effect,which may directly affect safe and stable operation of the power grid.Therefore,the paper analyzes influence of low-frequency oscillation on Guangdong power grid by combining the "7 · 6 event" of low-frequency oscillation caused by Guizhou hydroelectric generating set.It produces oscillation by simulation.Safety margin is relatively low in areas with weak power grid structure and damping level is closely related with voltage.Improper voltage control will cause power oscillation of the system.It is important to adopt reasonable and effective voltage control measures in weak damp areas.In actual operation,it is required to strictly adjust and control voltage,strengthen setting and switching of automatic voltage control and reasonably adjust running damping of the system so as to ensure safety and stability of system damp.关键词
低频振荡/强迫振荡/功率振荡/发电机组/负阻尼Key words
low-frequency oscillation/forced oscillation/power oscillation/generator set/negative damping分类
信息技术与安全科学引用本文复制引用
孙吉波,伍双喜,刘俊磊,徐衍会..一起区域外机组引发的低频振荡对广东电网的影响[J].广东电力,2017,30(12):81-85,5.基金项目
国家自然科学基金项目(51677066) （51677066）
广东电网有限责任公司科技项目(GDKJXM00000028) （GDKJXM00000028）
