IMPROVEMENT OF POWER QUALITY USING HYBRID ACTIVE POWER FILTER TOPOLOGY

System dependability raises worries about shunt capacitor failure, voltage spikes, voltage instability, and overcurrent due to resonance, among other problems. The power quality problems of the instantaneous sort include many transient phenomena such as voltage sag/dip, swell, noise, and voltage fluctuations. Uniform flow problems include flicker, harmonics current under load, and unstable load currents. For single phase 2 wire, three phase three wire, and three phase four wire designs, the employment of active, passive, hybrid filters in series, shunt, or a combination of them has aided in the balance of linear and nonlinear loads as well as the reduction of distortions. Shunt active power filters have been demonstrated to be useful in eliminating harmonic current in quasi loads. This paper discusses hybrid active power filters with active shunted and passively shunt architectures, passive series and actively shunted configurations, and instantaneous reactive power theory as a control mechanism for harmonics deterioration and performance enhancement. Simulations and test data are used to demonstrate the efficacy of the topology and control technique.