Open AccessSemiconductor rectifier with side pulsation
Author(s) -
Evgenij Koptjaev,
Jurij Dushkin,
Pavel Atrashkevich
Publication year - 2014
Publication title -
naukovedenie
Language(s) - English
Resource type - Journals
ISSN - 2223-5167
DOI - 10.15862/129tvn414
Subject(s) - ripple , electromagnetic coil , transformer , electrical engineering , amplitude , voltage , sine wave , rectifier (neural networks) , control theory (sociology) , three phase , physics , engineering , computer science , optics , stochastic neural network , control (management) , machine learning , artificial intelligence , recurrent neural network , artificial neural network
Described rectifier with twelve output voltage ripple is designed to supply industrial load and power lines DC, and provides savings in material and installation cost savings. A scheme managed rectifier with side pulsations, which gives a gain of up to 30% on mass and dimensions compared to classical schemes with two secondary windings are star-delta and provides better electromagnetic compatibility with the mains. The essence of the method is that the amount of segments of two sine waves results in a segment as a sinusoidal function to the amplitude and phase determined by the amplitude and phase terms. In the case of controlled semiconductor valves in a three-phase bridge circuit, it is possible to obtain an additional phase shift - at the expense of the control algorithm, which is the subject of this article. The total voltage of the two series-connected three-phase bridges (second - controlled with the "side pulsation ") connected to two secondary windings supplying three-phase transformer with a ratio of the number of turns in a ratio of 2.8: 1, respectively, and the same method of switching the two secondary windings with star connection has 12 pulsations.