HYBRID SERIES ACTIVE POWER FILTER FOR POWER QUALITY IMPROVEMENT

In this work, a hybrid active power filter with sources and loads is introduced for harmonic filtering in a gearbox system. The harmonics generated by non-linear loads (such diode bridge rectifiers) may also inject the source voltage and currents into other loads linked to the system. By severing the harmonics from the source voltage and currents, a series active power filter linked to the transmission line via series transformers attenuates them. In addition to the series active power filter, a passive filter is added to eliminate lower order harmonics. This allows the passive filter to react faster to transients produced by the recommended system. A fuzzy logic controller has been added to the series active power filter’s controller. The MATLAB Simulink software’s FFT analysis tool is used to compare the harmonics of the source current utilising fuzzy logic controllers and PI. The table displays the comparative results of the THD values.