The Energization Transients of 6-Pulse Rectifier Circuits

Mohamed Mostafa Saied

doi:10.37591/.v10i1.3824

Abstract

This paper addresses the energization transients of 6-pulse rectifier circuits. It applies anefficient representation of the diodes in order to describe their performance in both theforward and reverse directions. Without any loss of generality, the suggested method isapplied to the classical un-controlled six-valve full-wave rectifier bridge configuration. Theeffect of the load resistance, the eventual presence of smoothing shunt-capacitors and seriesinductors as well as the waveform of the supply voltage is illustrated. The approach canhandle cases involving unsymmetrical AC sources as well as the presence of batteries or non-linear elements in the DC load circuits. The obtained results of a Mathematica code includethe currents and voltages of all circuit elements. The paper reports on a detailed investigationinvolving seven case studies.Keywords: Analytical models, Bridge, Diodes, Mathematica, Power electronics, Single-phase,Rectifier circuits, Stead-state, Transient analysis, Valve stresses.