Power electronics in railway ligthing systems

摘要

Up to 20 percent of the generated electrical energy (according to the Department of Energy in the USA even 22 percent) is spent on lighting systems. Although the part consumed by lighting systems in railways is relatively small, there is the challenge to use the available technological options. Based on the predominantly used technology, the cold cathode fluorescent lamp with electronic ballast, the problems of using LEDs and OLEDs will be discussed.