基于最大信息系数和多目标Stacking集成学习的综合能源系统多元负荷预测

精确的多元负荷预测对于综合能源系统的能源调度与运行规划起到重要的作用.对电、热、冷负荷单独进行预测的传统方法会忽略多元负荷间的耦合关系.针对这一问题,提出一种基于多目标Stacking集成学习的多元负荷协同预测模型.引入最大信息系数对多元负荷及天气因素进行相关性分析,并提出负荷耦合形态指标来深度挖掘多元负荷间的耦合关系...

Multivariate load forecasting in integrated energy system based on maximal information coefficient and multi-objective Stacking ensemble learning

The accurate multivariate load forecasting plays an important role in energy dispatching and operation planning of integrated energy system. Traditional methods for forecasting electrical, thermal, and cooling loads separately ignore the coupling relationship between multivariate loads. In order to solve this problem, a multivariate load collaborative forecasting model based on multi-objective Stacking ensemble learning is proposed. The maximal information coefficient is introduced to analyze the correlation between multivariate load and weather factors, and the load coupling morphological index is proposed to deeply explore the coup-ling relationship between multivariate loads. Then, the multi-objective regression and Stacking ensemble learning model are combined to establish the multivariate load cooperative forecasting model. A practical example is given to verify the effectiveness of the proposed model, and the results of numerical examples show that the forecasting accuracy of the proposed model is higher than that of other forecasting models.