This paper presents another control technique for a three -phase power systems which depends on instantaneous power hypothesis for unbalanced voltage. In this paper we will dissect power quality issues under distortional and unbalanced voltage conditions, In this methodology, the voltage and source voltages are utilized to create the reference voltages of an arrangement dynamic power channel and source currents are utilized to produce the reference currents of a shunt dynamic power channel. The proposed control approach depends on instantaneous power and is streamlined by utilizing a self -tuning channel, without utilizing any filters or phase bolted circle, and without estimating voltage or channel currents. The presentation of the proposed control approach is assessed regarding power factor adjustment, source impartial current alleviation, voltage adjusting and relief of the current and voltage harmonics of distortional and unbalanced voltages in a three -phase system. Accordingly, the occasions that current is estimated is diminished and system execution is improved. The outcomes got by MATLAB/SIMULINK programming show the viability of the proposed control procedure in contrast with the regular technique.