Abstract

This paper deals with the numerical solution of nonuniform Transmission Lines (TL) with nonlinear loads. The method presented here is based on the combination of wavelet expansion and Finite Elements (FE) in space and time domain. By expanding voltages, currents and operators by means of wavelet functions, the TL equations are transformed into algebraic equations where the differential operator is represented by a matrix and the unknowns are the coefficients of the wavelet expansion of voltages and currents. The numerical efficiency of the method is tested by analyzing uniform, nonuniform lines and nonlinear loads. The results are compared with results obtained by means of different methods.

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