Energy Consumption Prediction for Air-conditioning System Based on Dynamic Temperature Control

doi:10.16182/j.issn1004731x.joss.21-0741

Abstract

Abstract:

To solve the problem of energy consumption prediction for air-conditioning systems implementing dynamic temperature control, we designed a dynamic temperature control strategy and obtained a dataset on the hourly energy consumption of the air-conditioning system through EnergyPlus simulation. An improved particle swarm optimization-back propagation neural network (IPSO-BPNN) prediction model was built on the basis of energy consumption analysis by an integrated method. Clustering, classification, and correlation analysis methods were integrated to mine the energy consumption pattern of the air-conditioning system and determine the input variables for the prediction model. A nonlinear change strategy was designed to adjust the inertia weight and acceleration factor of the PSO algorithm and thereby improve the training speed and optimization effect. An IPSO-BPNN model was constructed to predict the hourly energy consumption of the air-conditioning system. The results show that the convergence speed is significantly improved and that the average prediction accuracy is enhanced by 3.4%.

Key words: dynamic temperature control, energy consumption simulation, integrated method, prediction model, IPSO-BPNN

CLC Number:

TU831

Yan Bai, Lulu Wu, Yin'e He, Yuying Wang. Energy Consumption Prediction for Air-conditioning System Based on Dynamic Temperature Control[J]. Journal of System Simulation, 2022, 34(2): 366-375.

Figures/Tables 14

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项目		详情
冷水机组	效率	5.0
风机	静压值/ Pa	600
	效率/%	70
	工作时间	工作日08:00—20:00基于动态温度调控策略运行，其余时间不运行
制冷温度		工作日08:00—20:00进行动态温度设定，其余时间不工作
末端布置		每层有9个空调系统，即9个AHU和9个ATU

日期	时刻	时间类别			能耗/ (kW·h)	能耗模式标签
日期	时刻	工作日	加班	上班	能耗/ (kW·h)	能耗模式标签
06.01	1:00	否	否	否	0	零能耗
06.01	2:00	否	否	否	0	零能耗
06.01	3:00	否	否	否	0	零能耗
……
07.24	8:00	是	否	是	32.27	中能耗
07.24	9:00	是	否	是	38.72	高能耗
07.24	10:00	是	否	是	34.19	中能耗
……
08.31	18:00	是	否	是	32.87	中能耗
08.31	19:00	是	是	否	23.31	低能耗
08.31	20:00	是	是	否	23.46	低能耗

变量	关联度
R时刻室外温度	0.923 21
R-1时刻室外温度	0.917 59
R-1时刻室外相对湿度	0.893 89
R-1时刻室外风速	0.803 01
R-1时刻太阳直射辐射	0.648 06
R-1时刻太阳散射辐射	0.765 04
R时刻空调温度设定值	0.936 18
R时刻空调系统能耗模式	0.897 12

分析-模型	MAPE/%	MAE/(kW·h)	RMSE/(kW·h)
BPNN	8.24	2.816 9	4.179 5
集成-BPNN	6.13	2.110 9	2.715 9
集成-PSO-BPNN	5.59	1.910 8	2.561 7
集成-IPSO-BPNN	4.87	1.684 1	2.299 2

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