A modified adaptive power factor correction technique

摘要

A new approach of power factor correction technique is reclaimed in this paper. In power systems, the power factor correction usually consists of branching capacitive loads to the power line in order to reduce the reactive power generated from inductive loads. The determination of the capacitance value depends on different parameters such as the voltage, current, frequency and the phase angle between the voltage and current. Thus, lots of measurements and calculations are required to branch the best capacitor value and reduce the power loss. The majority of industrial correctors use trial and error techniques or are limited to few steps of power correction. The system proposed in this paper uses a simple algorithm with fewer mathematical operations to determine the best capacitance value which can be selected among 256 different choices. The system engages the required capacitance in one shot in order to expand the lifetime of the switching relays and capacitors.