Power Quality Improvement using Shunt Active Filter

In this paper Active filters are used to improve the quality of the power in the load side of the power system. This consists of two parts,1)Simulation in which we are adopting the method of hysteresis control method to reduce the third harmonic at the load side.2)Using a model of MOSFET and gate drivers to minimize the third harmonics at the load side. The losses from the harmonics at the load side will be high due to usage of the nonlinear loads and due to this the power factor will reduce which affect the cost per unit. By applying any of the above method we can minimize the losses as the third harmonics will be too small in this method. The source we are using is less and the third harmonics reduces to 5% and below. But it can only be applied to small sources and small equipment as it cannot with stand high currents.