摘要
为了充分考虑城市发展变化的多元性与预测电力负荷过程中的各种影响变量,提高电网规划中电力负荷的预测精度,本文提出了基于计量经济-灰色理论的多变量电力负荷预测方法。该方法首先通过电力负荷与各变量之间的相关性分析,确定预测过程中与电力负荷强度相关的各影响变量。然后利用统计学中的计量经济理论,找到彼此之间的联系,建立电力负荷与各变量之间的数学预测模型。最后再利用灰色理论对目标年各变量的值进行预测,以解决数据匮乏、波动的不确定性所带来的难题,并带入数学模型,完成预测。工程实例验证了该方法是正确和有效的。
In order to fully consider the diversity of urban development and the various influencing factors in the process of power load forecasting, and improve the forecast accuracy of power network plan, a method of multivariate power load forecasting based on the econometrics and grey theory is proposed. Firstly, this method determines strong correlation factors of the power load in the forecasting process through the correlation analysis between the power load and the variables. Then we find the connection between each other through the econometric theory of statistics, and establish the mathematical model for forecasting between the power load and the variables. Finally, we predict the value of each variable in the target year in order to solve the problems caused by the lack of data and the uncertainty of fluctuation, and brought them into the mathematical model in order to complete the load forecasting. An engineering example shows that the method is correct and effective.
作者
韩富尧
刘亚伟
Han Fuyao Liu Yawei(Electrical Engineering College, Northeast Dianli University, Jilin, Jilin 132012)
出处
《电气技术》
2017年第7期37-40,共4页
Electrical Engineering
