How Does A Power Factor Correction Device Solve Displacement Problems?

In AC circuits, voltage and current phase differences caused by inductive or capacitive components can be corrected by adding appropriate reactive power compensation using an power factor device converter, restoring the current and voltage to be in phase. This improves the displacement power factor.

In most systems, adding parallel capacitors or synchronizing devices is a common practice. This compensation counteracts the lag effect of inductive loads, reducing the apparent power of the circuit and increasing the proportion of actual active power. Consequently, the phase difference between the power supply and the load is reduced.

In engineering design, neglecting the effects of phase shift can lead to current and voltage asynchrony, placing unnecessary burden on equipment and the power grid. Equipping an power factor improvement device converter acts like "adjusting" the phase of the system, making the load behave like a purely resistive load—with voltage and current almost synchronized.