PWM CONTROL TECHNIQUE FOR MIGRATION OF VOLTAGE DIPS USING INTERLINE UNIFIED POWER QUALITY CONDITIONER

In this paper PWM Control Technique for migration of voltage dips using Interline Unified power Quality Conditioner. In these control technique we are using two active filters, a series active filter and a shunt active filter (parallel active filter), to control the sinusoidal reference with a source of both voltage and current and also to eliminate t he harmonics and unbalance. In iUPQC series active filter (SAF) works as a current source due to this high impedance occurs which is indirectly compensate the harmonics and disturbances of the gr id voltage and the load voltage. In iUPQC parallel active filter (PAF) works as a voltage source due to these low impedance occurs which is indirectly compensate the harmonics of grid current and also providing a low impedance path for the harmonic load current.