Monthly plan safety and stability checking method and system

The invention discloses a monthly plan safety and stability checking method and system. According to the invention, clustering analysis and probability statistics are carried out based on a historicalactually-measured power sequence of a new energy station; an active power output adjustment scheme of each new energy field station is obtained, a to-be-checked plan mode set is generated in combination with the to-be-checked plan integration, and safety and stability quantitative evaluation is performed on all the anticipated faults based on the to-be-checked plan mode set to obtain a safety andstability check result; and the influence of uncertainty of the new energy unit on monthly plan checking is considered, so that the safety and stability checking result is closer to the power grid reality, and the actual power grid dispatching operation can be effectively guided. 本发明公开了一种月度计划安全稳定校核方法及系统，本发明基于新能源场站历史实测功率序列进行聚类分析和概率统计，获得各新能源场站有功出力调整方案，并结合待校核计划整合生成待校核计划方式集，基于待校核计划方式集对所有预想故障进行安全稳定量化评估，得到安全稳定校核结果；计及了新能源机组不确定性对