西双版纳电网枯水期运行方式分析

Analysis of Xishuangbanna power grid operation mode in dry season

西双版纳电网内发电站均为径流式小水电和新能源电站,无调节能力,随着近年来地区内负荷的增长,枯水期地区小水电出力不足,地区负荷平衡能力差,且受220k V主网断面N-1稳定限制,仅能提供280 MW负荷供应,地区负荷缺口较大。为了缓解地区供电压力,考虑将本地区电网进行拆分后,转由临近地区电网供电,本文主要从负荷平衡、网架结构、电网风险几个方面综合分析,提出较为优化的转供方案。

Xishuangbanna grid power station for small hydropower stations and new energy power station, no ability to regulate, with recent regional load growth and dry region of small hydropower undercapacity, area load balance ability is poor, and 220 kV Main grid interface n-1 stability limit, can only provide 280 MW load supply, regional load gap larger. In order to alleviate the pressure on local supply, considering the local grid is split, the adjacent area power grid, this paper mainly from the load balance, grid structure, grid risk comprehensive analysis proposed a more optimal transfer scheme.