Shunt active power filter connected to a photovoltaic array for compensating harmonics and reactive power simultaneously

Power Quality Improvement by Reduction of Total Harmonic Distortion (THD) using PWM Inverter

“…Basically its size varies from 4-6 inches for a small cell generation about 3 watts. Basically the cells are connected in series-parallel manner in order to track maximum power [ 1].…”

Fundamental Active Current Adaptive Linear Neural Networks for Photovoltaic Shunt Active Power Filters

“…By connecting PV, the SAPF may operate with a full bridge inverter to be directly connected to PVs, which is called as single-stage configuration, or with addition of a dc/dc converter, which is called two-stage configuration [21][22][23]. The advantage of the single-stage configuration is lower power losses; however, it needs a higher number of PV modules in order to supply enough voltage to the dc link capacitor, which may make the overall system become bigger.…”

“…With active and reactive injections to the source grid, the power quality of the grid can be improved with low total harmonic distortion (THD) values [21]. Besides reducing the source current, by integrating PVs with SAPF, the active current is also supplied to the load sides which simultaneously reduces the burden of the source current to satisfy the load demand [22]. The normal SAPF based on voltage source inverter needs to absorb active power to charge the dc link capacitor, but with integration of PV to SAPF, the PV source does not just producing active current to the grid but also helping to maintain the dc link capacitor by giving additional charging current [23].…”

Comparison of two compensation control strategies for shunt active power filter

“…The proliferations of the power electronic and the extensive used of the nonlinear loads, with the generalization of static converters in industrial systems and domestic appliances effect the power quality of the supply system which becomes deteriorated [1,2].The harmonic pollution caused by the absorption of non sinusoidal currents and the consummation of reactive power by these nonlinear loads result in deterioration of voltage and current waveforms quality and affect the reliability of power electronic [2,3] that leads to excessive heating of cables, noise, interference to nearby communicating facilities [1].To reduce harmonics and improve the power quality, passive L-C filters were employed. However, these filters have the demerits of fixed compensation, large size, and resonance [4] .…”