Hierarchical Federated Learning for Power Transformer Fault Diagnosis
- Publisher:
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Publication Type:
- Journal Article
- Citation:
- IEEE Transactions on Instrumentation and Measurement, 2022, 71
- Issue Date:
- 2022-01-01
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| Filename | Description | Size | |||
|---|---|---|---|---|---|
| Hierarchical Federated Learning for Power Transformer Fault Diagnosis.pdf | Published version | 2.04 MB |
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Accurate diagnosis of power transformer fault type is critical to maintaining its safe and stable operation. Existing methods require a large number of labeled data and are implemented in a centralized manner. However, the labeled samples are owned by different electricity companies, and they are unwilling to share their private data due to commercial competition and personal data privacy. In this article, a federated learning (FL) model, called FL-channel attention-based convolutional neural network (CA-CNN), is proposed to infer the transformer fault type. Specifically, a CA-CNN is designed to bridge the dissolved gases and the fault types. Its model layers are divided into shallow and deep layers. A hierarchical parameter aggregation strategy is adopted to update the model in the FL framework, through which only the model parameters are shared, and the data privacy is protected. Experiments on the actual dataset demonstrate the effectiveness of the proposed method.
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