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This paper attempts to establish the grey correlation between the breakdown voltage of air gap and its energy storage status before discharge inception. A new method is presented for the breakdown voltage prediction of short air gaps. This method is based on an orthogonal design array and support vector machine (SVM). A hybrid model is established to predict the power frequency breakdown voltage of...
The breakdown voltages of SF6 gaps in uniform field and non-uniform field are predicted by a new method based on the electric field features and support vector machine (SVM). The finite element method (FEM) is used to calculate the electric field distribution of the SF6 gap. The parameters including the electric field strength, electric field energy, energy density, electric field gradient and scale...
Corona onset voltage and breakdown voltage of the air gap are the basis for the external insulation design of high-voltage transmission projects. A new prediction method for the discharge voltage of rod-plane air gaps is proposed in this paper. Support vector machine (SVM) is applied to establish the prediction model, and the improved grid search (GS) method is used for parameter optimization. The...
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