[1]WU Xiaodong,XIONG Weili.Fault detection method and its application using GAN with an encoded input[J].CAAI Transactions on Intelligent Systems,2022,17(3):496-505.[doi:10.11992/tis.202102003]
Copy
CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume:
17
Number of periods:
2022 3
Page number:
496-505
Column:
学术论文—机器学习
Public date:
2022-05-05
- Title:
-
Fault detection method and its application using GAN with an encoded input
- Author(s):
-
WU Xiaodong; XIONG Weili
-
Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education), Jiangnan University, Wuxi 214122, China
-
- Keywords:
-
generative adversarial network; autoencoder; latent variable; kernel density estimation; dimensionality reduction; fault detection; TE process; coal pulverization process
- CLC:
-
TP277
- DOI:
-
10.11992/tis.202102003
- Abstract:
-
In a traditional fault detection method based on a generative adversarial network, random noise is used as the generator input, which does not contain the effective information of training sets and causes unsatisfactory fault detection by the model. This paper proposes a generative adversarial network fault detection strategy using an encoded input. By introducing an autoencoder based on minimizing the reconstruction error, a latent variable space is constructed. The latent variable information after dimensionality reduction is used as the generator input to improve the training effect of the generated confrontation network. Furthermore, a generator-based statistic has drawbacks such as high computational cost and sensitivity to outliers. The Manhattan distance is calculated beginning from the encoded hidden variable of the sample to be tested to the center of the hidden variable space of the training set. This distance is then used as a new statistic for fault detection. The proposed fault detection method is used in the TE and actual coal pulverization processes. Compared with the traditional GAN fault detection, the alarming rate of the TE process increases by 13%. The alarming rate of all statistics in the coal pulverization process also improves considerably. The proposed statistics greatly reduce the detection time for generators in traditional methods, which validates their effectiveness and performance.