A Novel Integrated AC-DC Five Level Converter Strategy for Power Factor Correction
Journal: International Journal for Modern Trends in Science and Technology (IJMTST) (Vol.2, No. 4)Publication Date: 2016-04-02
Authors : K. Karthik; T. Srinivasarao;
Page : 1-7
Keywords : IJMTST; Vol 2; Issue 4; April 2016;
Abstract
Paper Setup must be in A4 size with Margin: Top 1.1 inch, Bottom 1 inch, Left 0.5 inch, Right 0.5 inch, Multilevel configuration has the advantage of its simplicity and modularity over the configurations of the other converters. With the application of multilevel converter in the high voltage and large power occasions in recent years, its modulation strategy has become a research hot point in the field of power electronics. The proposed power-factor-correction circuit can achieve unity power factor and ripple-free input current using a coupled inductor. The proposed rectifier can also produce input currents that do not have dead band regions and an output current that is continuous for all load conditions. The features of this converter are that it has lower input section peak current stresses and a better harmonic content than similar converter with a non-interleaved output, the output current is continuous for all load ranges, and the dc bus voltage is less than 450 for all line and load conditions. In this paper, the operation of the new converter is explained, its steady-state characteristics are determined by analysis, and these characteristics are used to develop a procedure for the design of the converter. Hence the simulation results are obtained using MATLAB/SIMULINK software. The proposed system provides a closed loop control for variable output voltage. The SSPFC AC/DC converter can operate with lower peak voltage stresses across the switches and the DC bus capacitors as it is a three-level converter. The proposed concept can be implemented with 5-level for efficient output voltage.
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Last modified: 2016-04-02 17:01:33