This study presents single-phase shunt active filter for three-phase four-wire distribution systems to alleviate the overloading of the neutral conductor. The single-phase shunt active filters are installed near the nonlinear diode rectifier loads for eac This study presents single-phase shunt active filter for three-phase four-wire distribution systems to alleviate the overloading of the neutral conductor. The single-phase shunt active filters are installed near the nonlinear diode rectifier loads for eac