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Traditionally discrete Fourier transform, wavelet techniques etc. are used for numerical transformer protection. In this study two different techniques are suggested for this purpose. The techniques so called dynamical principal component analysis (PCA) and independent component analysis (ICA) are investigated and compared to detect transformer internal faults. A three phase custom-built transformer...
In this paper; a method is proposed to detect parameter faults in nonlinear systems. The proposed method is called a dynamic principal component analysis approach. In this approach, the detection is based on the manipulation of input and output data without assuming any model for the system. The approach is based on the principal component analysis of the system input-output correlation data on a...
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