摘要
针对灰色模型在数据序列无规律的风力发电量预测中精度不高的问题,通过对原始数据的平滑处理改进灰色模型,并将改进的灰色模型与BP神经网络相结合构建组合预测模型,采用灰色关联法改进组合预测的权重系数。实例分析表明,改进的优选组合模型预测的准确度高于单一模型及传统的优选组合预测模型。
As the prediction accuracy of grey model for wind power generation with erratic presence of the original data was not high enough,grey model was improved by using smoothing techniques to handle the original data.The improved grey model and BP neural network were combined to construct a combination forecasting model,and grey relational analysis was adopted to improve the calculation of weighting coefficient in combination forecasting model.The example results show that the prediction accuracy of the combination forecasting model is higher than that of single forecasting model and traditional combination forecasting model.
出处
《水电能源科学》
北大核心
2015年第4期203-205,163,共4页
Water Resources and Power
基金
国家自然科学基金项目(51167012)
江西省教育厅科技计划项目(GJJ14269
GJJ14165)
江西省博士后科研择优资助项目(2014KY26)
