Application of Wavelet Analysis on the Ferroresonance in Power System
In the neutral point non-earthing sophisticated power system, ferrores-sonance overvoltage caused by single-phase short circuit happens frequently. Thi s paper employed the toolbox of simulation implement of MATLAB to achieve nume rical calculation and simulation of the ferroresonance transient process due to matching of nonlinear magnetizing inductance of PT and network-to-earth capacita nce. Basing on research on ferroresonance using wavelet analysis, the simulation results show that wavelet analysis is efficient to the detection of ferroresona nce frequency.