Poly-phase filter-bank realization for the simulation of electric-network transients

This work illustrates the simulation of powersystem transients through equivalent multi-rate models based on Filter-Bank and IIR-FIR representation of electric systems. The processing structure is composed by a sub-band coder with M channels sub-sampled and a Poly-phase implementation of filters. This concept is applied in time domain using signal processing theory, filter-bank and z-Transform. The calculation scheme is implemented by obtaining the transfer function from the study system and applying the convolution whit the proposed method. The calculation scheme is developed via independent systems allowing a parallel implementation which reduces the computational effort of each processor without loss of accuracy.