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Accurately and quickly identifying the fault types of traction transformers is a key technology for intelligent operation and maintenance. Aiming at the problems of single model deviation in the current traditional algorithm and the constraints between the iteration rate of complex models and the deployment of computing resources，a traction transformer fault diagnosis model based on the Stacking ensemble learning framework was proposed，and incorporated knowledge distillation technology to compress model iteration time to improve the computational performance of the model. First，an evaluation feature vector composed of gas indicators in transformer oil was constructed，and then the single Bagging and Boosting framework algorithm were combined based on the Stacking integrated learning framework，and knowledge distillation technology was incorporated to realize the effective mapping of feature vectors and fault types. The actual generalization effect in the DGA data sample shows that this method solves the problem of bias and variance in the traditional integrated model，accelerates the iteration speed of the integrated model，and proves the engineering application value of the model.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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