Control techniques for a Three Phase Four Wire (3P4W) Shunt Energetic Power Filter
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Abstract
In this research, we provide
a novel model of control for a 3P4W shunt energetic
power filter. Typically, a power electronics device's
control method will have two control loops: a fastresponding inner current loop and a more gradualresponding outer voltage loop. Because of the
dynamic loop of the cirrent, the PI regulator cannot
monitor it. The repetitive controllers (RC), which
offer excellent gain at all frequencies, are widely
recognised for their capacity to follow periodic
signals. The higher frequency range's strong gain
could cause instability. As a result, the sensitivity
function of the regular RC is squared in the
proposed study. This project uses a fuzzy logic
controller to improve the power quality. This
method provides a sensitivity function with a
moderate amplitude while giving deep notches at
low to medium frequencies and with more
frequency low notches. This control approach has
been tested and put into practise on the 3P4W
SAPF.
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