Performance analysis of hybrid filters in high power applications

Abstract

In the proposed work shunt connected active and passive harmonic filters are taken into consideration. This proposed configuration is able to eliminate current harmonics produced by large nonlinear loads which are connected to the grid. The current waveform is improved by passive harmonic filter created by a non-linear load, whereas active harmonic filter improves power balancing effect of the load. Among different types of shunt passive filters, a high pass filter, a double tuned filter and a C-type filter has been taken into consideration. Similarly a shunt active filter using voltage source inverter, a series inductor on the AC side and a capacitor on DC side is considered for the proposed hybrid filter design for high power application. The system performance with the filters is presented by considering different cases and the results are compared in the MATLAB-Simulink platform.