云南电网小水电群地区电网低频振荡影响因素仿真分析

摘要

Aiming at problems of redundant electricity in compact district of small hydropower stations in Yunnan,weak structure of relevant regional power grids and low frequency oscillation in practical operation for many times,this paper dis-cusses simulation analysis on stability of the regional power grid according to operational data of southern power grid in 2014 and studies main influencing factors on low frequency oscillation of the power grid. Meanwhile,it proposes relevant meas-ures and suggestions to prevent low frequency oscillation of the regional power grid.%针对云南小水电群密集地区富余电力较多，而相应地区电网结构薄弱，实际运行中曾多次出现低频振荡的现象，基于南方电网2014年运行数据，对地区电网稳定特性进行仿真分析，研究电网低频振荡的主要影响因素，并提出防止地区电网低频振荡的相关措施及建议。