The reactive current is termed VARs for " volt-amps reactive " and the power company hates them, since they heat up transformers and distribution lines just like revenue-producing watts.
12.
For zero voltage ride through it is common to wait until the dip ends because with zero voltage it is not possible to know the phase angle where the reactive current should be injected.
13.
With the SPC tuner the losses will be somewhat higher than with the T network, since the added capacitance across the inductor will shunt some reactive current to ground which must be cancelled by additional current in the inductor.
14.
Viewed from the supply side of the machine's terminals, a negative reactive current will flow out of the terminals, and the machine will therefore appear as a capacitor, the magnitude of whose reactance will fall as Ir increases above Is0.
15.
Using active rectification to implement AC / DC conversion allows a design to undergo further improvements ( with more complexity ) to achieve an active power factor correction, which forces the current waveform of the AC source to follow the voltage waveform, eliminating reactive currents and allowing the total system to achieve greater efficiency.
16.
Adding a power factor correction capacitor ( in which current leads ac voltage ) of the right size and voltage rating can put the voltage and current closer to being in phase, reducing the reactive current, which serves no purpose in the electrical distribution network, but which only reduces voltage on the circuit and increases the loading on lines and transformers.
