Power Quality Improvement Using a Robust Hybrid Series Active Power Filter

Abstract

In this paper, we enhance the power quality, Harmonic reduction, Reactive power compensation. Power
quality problems have become the most important concern now days. Custom Power Devices (CPD) provides a solution
for these power quality problems. Shunt active power filter is the preeminent solution against nonlinear loads, power
quality problems, and current harmonics. The HPF includes a series passive filter and a thyristor-controlled-reactorbased variable-impedance SPF i.e shunt passive filter. A novel circuit topology for the three-phase APF - active power
filter is A novel circuit topology is proposed to suppress harmonic currents. This three-phase APF is made up of a twoarm bridge power converter, a filter inductor set, a reactive power compensating capacitor set and a capacitor/resistor
filtering set. The proposed topology enhances the harmonic compensation capability and provides complete reactive
power compensation compared with conventional APF topologies