18-pulse rectifier in arrangement with coupled three-phase reactor

Abstract

The paper presents a proposal of a developed multi pulse AC/DC converter built from three 6-pulse bridge rectifiers. These rectifiers are connected in parallel to form an 18-pulse rectifier. The converter is connected to the line by use of coupled reactors working in an specialized circuit. The converter is convenient for supplying high power devices e.g. multilevel inverters and gives a very good performance. Simulation and experimental works prove the usefulness of the converter as well as its respectable properties.