Analysis of the impact of voltage harmonics on the DC component of the grid-side currents of single-phase rectifiers

Abstract

ABSTRACT: This paper is focused on electronic power distribution, specifically the study of the behaviour of devices such as rectifiers that operate in low voltage networks in order to rectify the signal from AC to DC and supply domestic electronic equipment. The power supply is negatively affected by the non-linear behaviour of this devices and cause different kinds of distortion. For this study, it will be discussed particularly the DC component of the grid-side current which is strongly related to asymmetries and even harmonics and can bring problems to the power quality supply such as overheating of transformers or ground fault currents among others. In order to analyse the behaviour of the DC current supply component, multiple scenarios will be created for different rectifier topologies and with regard to network impedance, background distortion and the number of connected devices