HVAC Load Forecasting Based on the CEEMDAN-Conv1D-BiLSTM-AM Model

Zhicheng Xiao, Lijuan Yu, Huajun Zhang (), Xuetao Zhang and Yixin Su
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Zhicheng Xiao: School of Automation, Wuhan University of Technology, Wuhan 430070, China
Lijuan Yu: School of Automation, Wuhan University of Technology, Wuhan 430070, China
Huajun Zhang: School of Automation, Wuhan University of Technology, Wuhan 430070, China
Xuetao Zhang: School of Automation, Wuhan University of Technology, Wuhan 430070, China
Yixin Su: School of Automation, Wuhan University of Technology, Wuhan 430070, China

Mathematics, 2023, vol. 11, issue 22, 1-24

Abstract: Heating, ventilation, and air-conditioning (HVAC) systems consume approximately 60% of the total energy consumption in public buildings, and an effective way to reduce HVAC energy consumption is to provide accurate load forecasting. This paper proposes a load forecasting model CEEMDAN-Conv1D-BiLSTM-AM which combines empirical mode decomposition and neural networks. The load data are decomposed into fifteen sub-sequences using complete ensemble empirical mode decomposition with adaptive noise (CEEMDAN). The neural network inputs consist of the decomposition results and five exogenous variables. The neural networks contain a one-dimensional convolutional layer, a BiLSTM layer, and an attention mechanism layer. The Conv1D is employed to extract deep features from each input variable, while BiLSTM and the attention mechanism layer are used to learn the characteristics of the load time series. The five exogenous variables are selected based on the correlation analysis between external factors and load series, and the number of input steps for the model is determined through autocorrelation analysis of the load series. The performance of CEEMDAN-Conv1D-BiLSTM-AM is compared with that of five other models and the results show that the proposed model has a higher prediction accuracy than other models.

Keywords: CEEMDAN decomposition; Conv1D; HVAC load prediction; BiLSTM; attention mechanism (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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