根据给定的每15min预测一次的负荷数据，利用灰色预测GM（1,1）理论进行预测，并分别预测一周内周末和工作日的负荷变化情况，最终形成负荷变化曲线-According to the given load once every 15min forecast data, the gray prediction GM (1,1) theory to predict, and are predicted load changes within a week on weekends and weekday