4.7 Article

Strong robustness and high accuracy in predicting remaining useful life of supercapacitors

期刊

APL MATERIALS
卷 10, 期 6, 页码 -

出版社

AIP Publishing
DOI: 10.1063/5.0092074

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资金

  1. Youth Fund of Shandong Province Natural Science Foundation [ZR2020QE212]
  2. Key Projects of Shandong Province Natural Science Foundation [ZR2020KF020]
  3. Guangdong Provincial Key Lab of Green Chemical Product Technology [GC202111]
  4. Zhejiang Province Natural Science Foundation [LY22E070007]
  5. National Natural Science Foundation of China [52007170]

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In this study, a temporal convolutional network is used to predict the remaining useful life of supercapacitors. The model's stability and accuracy were verified by using residual blocks, early stopping technology, and the Adam algorithm for optimization. The simulation demonstrated the robustness and accuracy of the model in predicting the remaining useful life of supercapacitors.
Remaining useful life shows extraordinary function in guiding the timely replacement of supercapacitors that reach the service life limit, which has great significance to the security and stability of the energy storage system. In order to more accurately predict the remaining useful life of supercapacitors so as to ensure the reliability of the whole supercapacitor bank, a temporal convolutional network is used. Among them, a residual block can solve the problems of gradient explosion and gradient disappearance, which are widespread in the recurrent neural network. Early stopping technology is used to avoid overfitting, and the Adam algorithm was used to optimize the process of parameter adjustment of the temporal convolutional network. The stability and accuracy of the model prediction were verified by using the capacity attenuation dataset of supercapacitors under different experimental conditions. Meanwhile, to verify the generalization ability of the model, the datasets of supercapacitors at different working conditions without training are input into the temporal convolutional network model. Simulation shows that the temporal convolutional network model exhibits strong robustness and high accuracy in predicting the remaining useful life of supercapacitors. (C) 2022 Author(s).

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