Development and research of three-phase multizone AC-DC converters

This study is devoted to comparative analysis of new three-phase circuits of AC-DC converters: three-zone bridge circuit, two-zone bridge circuit, two-zone null circuit, as well as two-zone circuit based on one-phase bridges. It is shown that in new three-phase rectification voltage inverse voltage on gates essentially decrease and power indicators substantially improve in comparison with the currently used circuits. Total harmonic distortion of direct voltage, input current, as well as power factor calculated through computer modeling in PSIM are given.