Open AccessAnalysis of the harmonic composition of the rectified voltage at the asymmetry of the secondary system of windings with different turns in converter
Author(s) -
L. A. Neyman,
K. S. Linnik
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1661/1/012065
Subject(s) - transformer , harmonics , ripple , electromagnetic coil , rectification , voltage , electrical engineering , asymmetry , converters , amplitude , harmonic , physics , topology (electrical circuits) , control theory (sociology) , engineering , computer science , acoustics , optics , control (management) , quantum mechanics , artificial intelligence
The use of integrated transformer converters of the number of phases, in which the EMF phase system at the input of bridges is formed by the geometric addition of the EMF components of individual windings, expands the scope of application of DC voltage sources with ripple frequency. With the symmetry of the transformer converter of the number of phases included in the valve bridges, each ripple of the rectified voltage of the integrated rectifier contains m ripples of exactly the same amplitude and duration, containing the corresponding composition of harmonics. However, when designing such integrated rectifiers, there is a problem of ensuring an acceptable level of symmetry of the multiphase EMF system. This is due to the inability to implement the required ratios between the numbers of turns due to their discreteness. This paper presents studies of the analysis of harmonics of rectified voltage with an asymmetry formed by a secondary system of multi-turn windings for an eight-pulse rectification scheme.