Measurement and simulation of power quality disturbances between 2-150 kHz from compact fluorescent lamps

Abstract

A set of measurements and simulations describing the relationship between conducted disturbances of a Compact Fluorescent Lamp (CFL) within the range 2-150 kHz, and some variations in its base circuit, are shown and analyzed in this article. Measurements are carried out using some low power CFL devices in single operation. Simulations of a typical CFL circuit without any Power Factor Corrector stage are performed by means of LTSpice® simulator. Measurements show a particular behavior of 2-150 kHz disturbances in current signals in CFL devices, and similarities with some disturbances from LED lamps. Variations at EMI filter, Rectifier, and Smoothing filter stages show strong influence on emissions within this frequency range. Hence, variations in base circuit allow these emissions to change when devices are in single operation. The results from measure ments and simulations are a step forward in understanding and modeling emissions in the 2-150 kHz frequency range.