Guodong ZHANG, Haitao PU, Kai LIU. Fault Line Selection Method of Small Current Grounding System Based on Deep Learning[J]. Power Generation Technology, 2019, 40(6): 548-554.
Guodong ZHANG, Haitao PU, Kai LIU. Fault Line Selection Method of Small Current Grounding System Based on Deep Learning[J]. Power Generation Technology, 2019, 40(6): 548-554. DOI: 10.12096/j.2096-4528.pgt.19103.
the single-phase grounding fault line selection problem of small current grounding system has not been completely solved. In order to improve the success rate of single-phase grounding fault line selection
a new method based on deep learning network was proposed. Firstly
the simulation model of neutral un-grounded system was built by PSCAD. By setting the fault of each line under different grounding resistors
the sample data based on the zero sequence current value and phase angle of each line was obtained out. The sample data was divided into three parts:training set
verification set
and test set. Secondly
a deep learning neural network was constructed based on Keras
and the network was trained using the training set and validation set. Finally
the trained model was tested The results show that the method has the characteristics of simple modeling
high success rate and no influence of transition resistance.