Title :
An improved SVM-based model with peak recognition for electricity demand forecasting
Author :
Yang Kun ; Ji Zhicheng
Author_Institution :
Inst. of Electr. Autom., Jiangnan Univ., Wuxi, China
Abstract :
For the characteristics of multi-factor and the small sample size of long-term electricity demand forecasting, a modified SVM-based model with peak recognition is considered, which can increase the weight of peak error in the loss function of structural risk minimization to adjust the penalty function. To build modified SVM model, the selection method of model parameters is analyzed and sample data is trained by SMO, so that prediction accuracy and generalized performance are greatly improved. According to the electricity demand forecasting results of Wuxi city, the analysis results show that the prediction method is reasonable and effective, with promotion application value.
Keywords :
load forecasting; optimisation; power engineering computing; risk management; support vector machines; SMO; SVM-based model; Wuxi city; electricity demand forecasting; loss function; model parameter selection method; peak error; peak recognition; promotion application value; sequential minimal optimization; structural risk minimization; support vector machine; Analytical models; Character recognition; Data models; Demand forecasting; Electricity; Predictive models; Support vector machines; Correlation coefficient; Forecasting model; Peak recognition; Sequential minimal optimization; Support vector machine;
Conference_Titel :
Control Conference (CCC), 2011 30th Chinese
Conference_Location :
Yantai
Print_ISBN :
978-1-4577-0677-6
Electronic_ISBN :
1934-1768