Chiller Fault Diagnosis Based on Automatic Machine Learning

被引:8
作者
Tian, Chongyi [1 ]
Wang, Youyin [1 ]
Ma, Xin [1 ]
Chen, Zhuolun [2 ]
Xue, Huiyu [3 ]
机构
[1] Shandong Jianzhu Univ, Sch Informat & Elect Engn, Shandong Key Lab Intelligent Bldg Technol, Jinan, Peoples R China
[2] Tech Univ Denmark, Copenhagen Ctr Energy Efficiency, Dept Technol, UNEP DTU Partnership Management & Econ, Lyngby, Denmark
[3] China Acad Bldg Res, Inst Bldg Environm & Energy, Beijing, Peoples R China
来源
FRONTIERS IN ENERGY RESEARCH | 2021年 / 9卷
基金
中国国家自然科学基金;
关键词
chiller; fault diagnosis; long short-term memory network; automatic machine learning; transient cosimulation; NETWORK;
D O I
10.3389/fenrg.2021.753732
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Intelligent diagnosis is an important means of ensuring the safe and stable operation of chillers driven by big data. To address the problems of input feature redundancy in intelligent diagnosis and reliance on human intervention in the selection of model parameters, a chiller fault diagnosis method was developed in this study based on automatic machine learning. Firstly, the improved max-relevance and min-redundancy algorithm was used to extract important feature information effectively and automatically from the training data. Then, the long short-term memory (LSTM) model was used to mine the temporal correlation between data, and the genetic algorithm was employed to train and optimize the model to obtain the optimal neural network architecture and hyperparameter configuration. Finally, a transient co-simulation platform for building chillers based on MATLAB as well as the Engineering Equation Solver was built, and the effectiveness of the proposed method was verified using a dynamic simulation dataset. The experimental results showed that, compared with traditional machine learning methods such as the recurrent neural network, back propagation neural network, and support vector machine methods, the proposed automatic machine learning algorithm based on LSTM provides significant performance improvement in cases of low fault severity and complex faults, verifying the effectiveness and superiority of this method.
引用
收藏
页数:17
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