The research of the fault types recognition in transformer by differential protection based on LIBSVM
2010
A new method to distinguish various fault types of transformer by differential protection based on LIBSVM is discussed. This paper uses PSCAD/EMTDC to build transformer and differential protection model which is applied to simulate various transformer fault types, the simulation data and characteristic value extracted are preprocessed; then fault identification model based on LIBSVM is established. This paper finds the optimal settings by different kernel functions and parameters through a lot of experiments. Experimental results show that LIBSVM can identify various fault types correctly, it verifies the accuracy of transformer fault types recognition by differential protection based on LIBSVM.
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