小水电站借道接入电网的自励磁分析处理

Self-excitation Analysis and Treatment of Small Hydropower Stations When Accessing to Power Grid through Other Stations

摘要:

目前进行水电流域开发的模式中，存在施工期电源电站等小水电站在后期借道干流主要发电站一同并入主 网的情况，特殊情况下出现小水电站单独带长线路的运行方式。通过某流域施工电源电站接入电网的过电压电磁分 析，对流域电站开发中消除自励磁提出了相应的配置措施。

Abstract:

Abstract: At present，in river basin development mode，the small hydropower stations such as power source stations in construction period depend on the large hydropower stations of main stream to integrate with main power grid together in later stage． The especial operating mode is the small hydropower station working with long lines alone，so the corresponding configuration measures are put forward to eliminate the self － excitation of small hydropower through the over － voltage electromagnetic analysis of a power source station during construction when accessing to power grid．