• Palak Hariyaliyan
• Mr. Mihir K. Patel
• Mr. Kiran A. Patel

Shunt active power filter is the preeminent solution against nonlinear loads, current harmonics and power quality problems. APF topologies for harmonic compensation use numerous high-power rating components and are therefore disadvantageous. Hybrid topologies combining low-power rating APF with passive filters are used to reduce the power rating of voltage source inverter. Hybrid APF topologies for high-power rating systems use a transformer with large numbers of passive components. In this project a novel four-switch two-leg VSI topology for a three-phase SAPF is proposed for reducing the system cost and size. The proposed topology comprises a two-arm bridge structure, four switches, coupling inductors, and sets of LC PFs. The third leg of the three-phase VSI is removed by eliminating the set of power switching devices, thereby directly connecting the phase with the negative terminals of the dc-link capacitor. The proposed topology enhances the harmonic compensation capability and provides complete reactive power compensation compared with conventional APF topologies. The simulation and analysis of 3-phase transformer less SAPF is carried out using Matlab-Simulink.

SAPF, VSI, APF, LC-Filters, Harmonics, etc.

"Simulation of Three Phase Transformer-less Shunt Active Power Filter for Harmonic Compensation in Grid Connected Applications", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.7, Issue 11, page no.325-341, November-2020, Available :http://www.jetir.org/papers/JETIR2011048.pdf

"Simulation of Three Phase Transformer-less Shunt Active Power Filter for Harmonic Compensation in Grid Connected Applications", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 11, page no. pp325-341, November-2020, Available at : http://www.jetir.org/papers/JETIR2011048.pdf