Dynamic Power Factor Correction Through Power Electronic Converters Optimal Control

The present work describes a novel control strategy applicable to power electronic converters intending to provide ancillary services to the electrical power grid in terms of power factor compensation. This objective is achieved through a nonlinear control strategy centered on nested control loops based on super-twisting sliding modes and nonlinear optimal tracking control. To make the power converter output track a desired reference current to inject the required reactive power for the power factor compensation at a power system node. Simulation results demonstrate the effectiveness of the proposed control scheme by guaranteeing unitary power factor regulation in the face of abrupt load variations.