A UPFC-Based Voltage Compensator with Power Factor Correcting Function

A UPFC-based voltage compensator investigated in this paper is capable of a fast compensation of voltage variations in power supply lines. A power factor correcting function is newly incorporated in this voltage compensator. Dynamic performance analysis of this compensator is carried out by simulation. It is shown that cooperative operation of this compensator and an existing voltage compensator is performed effectively, and that the compensator can compensate both the line voltage variation and reactive power simultaneously. Experimental results are included to validate the simulation analysis.