摘要
负荷预测是选取电力系统规划变电站及发电厂主变压器容量的主要依据,以实际某市供电负荷为例,建立起动态等维新息模型,把原始数据和预测的数据进行组合,利用回归模型,得到模型的预测方程,并从模型预测结果的相对误差和模型精度等级进行对比,说明结合动态等维新息模型,能使中长期电力负荷预测结果更靠近实际负荷值。
Load forecasting is the mainstay of selection of the power system planning substation and the main transformer capacity in power plant, especially for medium and long term load forecasting. Taking the power supply load of certain city for example, this paper established a dynamic new information model with equal dimension, combined original data with predicted data and used a regression model to get the model prediction equation, carrying out comparison of the relative error and model accuracy class from model prediction results. The results show that the combination of the dynamic new information model with equal dimension could make medium and long term power load forecasting results be more close to the actual load value.
出处
《电工电气》
2016年第6期41-43,共3页
Electrotechnics Electric
关键词
负荷预测
中长期负荷
灰色预测模型
等维新息模型
精度检验
load forecasting
medium and long term load
grey prediction model
new information with equal dimension model
accuracy test
