灰色预测中的样本合适长度及残差周期模型

Appropriate size of the sample and residual periodic model in the grey forecast

文中将灰色理论应用于电力负荷预测,设计了等维新息模型,并根据实际数据说明了样本的合适长度.针对原始数据波动情况,提出了残差周期模型以提高预测精度.

The paper discusses applying grey theory to power load forecasts, design equal-dimension and new-information model, and illustrate appropriate size of the sample on the basis of practical data. To counter the fluctuating case of original data, residual periodic model is put forward to increase forecast precision.