摘要
对线损率预测的方法进行了研究,采用灰色模型与神经网络组合的方法对线损率进行预测。首先用GM(1,1)建模对线损率的变化趋势分析计算,运用灰色关联度分析与线损率相关的因素,确定出神经网络的输入变量,建立线损率预测的3层BP网络模型;然后采用GM(1,1)和神经网络的组合预测模型得到线损率的最终预测结果;最后通过对实例的分析,证明所提方法提高了线损率预测的精度。
The paper is mainly focusing on the research of the method for line loss rate forecasting by adopting grey model combined with neural network. Firstly, GM ( 1,1 ) model can be used to analyze and calculate thevariation trend of line loss rate. The input variables of the neural network can be determined by the grey relationship of related factors. Three-layer BP model for line loss rate forecasting is constructed, and then the eventual result can be obtained by us- ing the combined model of GM ( 1,1 ) and neural network. Finally, an example is taken to prove the precision of line loss rate forecasting by the proposed method in the paper.
出处
《电力系统及其自动化学报》
CSCD
北大核心
2013年第5期162-166,共5页
Proceedings of the CSU-EPSA
关键词
线损率
预测
灰色模型
神经网络
组合模型
line loss rate
forecasting
grey model
neural network
combined model
作者简介
张勤(1987-),女,硕士研究生,从事线损计算、调度自动化及计算机信息处理方面的研究工作.Email:zhangqingood@126.com|
周步祥(1965-),男,博士,教授,从事电力系统自动化和计算机应用等方面的研究工作.Email:hiway_scu@126.com|
林楠(1973-),女,硕士,讲师,从事电力系统自动化、计算机应用的研究和教学工作.Email:cdlinlan@yahoo.com