Comparative analysis of multi-cycle DC-DC buck converters for locomotives

Abstract

This article presents a comparative analysis of different DC-DC buck converter schemes, particularly for 1-cycle, 2-cycle and 3-cycle circuits. A mathematical model is developed; the external characteristics and the dependency of total harmonics distortion (THD) of input current and load voltage are plotted. Also, the circuit elements calculation is performed for 1-cycle, 2-cycle and 3-cycle converters.