通过径流式水电站年来水量变化及其预测问题的分析 ,建立了径流式水电站年来水量预测的灰色数学模型 ,并就预测中样本序列的拓扑选择、预测目标等问题提出了相应的策略。最后结合一个实例说明了本方法的应用。结果表明 ,本文的方法及分析思路 ,对径流式水电站年来水量的预测具有较好的应用和参考价值 Based on the annual change of runoff hydropower stations and its forecasting problems, a gray mathematical model of annual runoff forecasting of runoff hydropower stations is established. Corresponding strategies are put forward, such as the topological selection of forecasting sequence and forecasting target. Finally, an example is given to illustrate the application of this method. The results show that the method and analysis ideas of this paper have a good application and reference value for the prediction of annual runoff of radial-flow hydropower stations