The Performance of the APFC

Assuming the capacitor value of automatic power factor correction systems can be any, or in other words the number of variations of the value of the capacitor capacity is infinite, the higher the apparent power of load or the lower the power factor of load, power factor correction efforts will be heavier and value output power factor can still be worth far below one.
But with the limited number of variations in the value of the capacitor capacity, as long as the maximum limits of correction, the higher the load apparent power, power factor corrected values would be guaranteed getting closer to one and have a fairly small fluctuations.
In order to achieve the value of power factor as close to one, the determination of the total capacity of capacitors in the C-bank should be based on the largest electrical load that happens, both electrical load with the greatest apparent power and the smallest power factor, and not based on installed power capacity.
In conditions with heavier loads than specified, the system will perform power factor correction by using all of available capacitors and there is the possibility of power factor corrected still much smaller than one.
With the same power factor value, the lower the load apparent power, power factor corrected values will be more varied and this value can be far below the value of one. The low power factor at low power will not be harmful because the reactive current that occurred only a little.
The model has been developed can be implemented into a prototype of automatic power factor correction that can be used for many consumers.
For overall power factor correction, should be considered the harmonic components. This research can proceed with efforts to correcting harmonic component.


The need for Automatic Power Factor Correction (APFC) Systems
Using ATmega8535 AVR Microcontroller
Heaviest Electrical Loads for the System 
Modeling using MATLAB

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