Development of a mathematical model of a voltage converter with a power factor corrector for LED light sources

Authors: Olisovets A. Yu., Tuev V. I., Shkarupo S. P., Habarov M. V., Ivanov A. N.

Annotation: The article solves the problem of developing a mathematical model of a semiconductor voltage converter with a passive power factor corrector. The model can be implemented in any system of mathematical modeling and is aimed at analyzing the current consumed by a wide range of technical solutions of diode-capacitive power factor correctors. The proposed mathematical model is applied to calculate the form of current consumed from the electrical network by a new device with uncontrolled thyristic (dynistor) with the subsequent calculation of the power factor value based on the spectral analysis of the form of current consumed. Experimental studies confirmed the high accuracy of the proposed model (the difference in calculated values and experimental data does not exceed 5%). Materials of the article may be useful for design engineers in the field of converting electrical engineering.

Keywords: power factor, mathematical model, power factor corrector, led lamp, dynistor, capacitor, interval