scholarly journals Transformer Based Cascaded Multilevel Inverter with Reduced Number of Switches

2021 ◽  
Vol 9 (11) ◽  
pp. 1299-1314
Author(s):  
Dr. T. Murali Mohan
Keyword(s):  
Fourier Transform ◽  
Fast Fourier Transform ◽  
Power Distribution ◽  
Harmonic Distortion ◽  
Balance Of Power ◽  
Multilevel Inverter ◽  
Two Stage ◽  
Fast Fourier Transform Analysis ◽  
Index Terms ◽  
Cascaded Multilevel Inverter

Abstract: This project presents the simulation of “transformer based cascaded multilevel inverter with reduced number of switches” with R-load and. It has the advantages of reduced number of switches and dc sources compared to conventional configurations and consequently higher efficiency. The simulation is accomplished for one stage (3-level), two stage (5-level, 7- level, 9-level), three stage (7-level, 11-level, 15-level, 19-level, 27-level) and four stage (29-level, 31-level, 33-level, 35-level). And their performance is analysed in terms of THD (Total Harmonic Distortion) for output voltages and currents. The FFT (Fast Fourier Transform) analysis is used in order to evaluate the harmonic distortion. The simulation is carried out by using MATLAB/SIMULINK software. Index Terms: cascaded asymmetric multilevel inverter, transformer-based cascaded multilevel inverter, balance of power distribution.

scholarly journals THD performance of single phase five level inverter using proportional resonant and harmonic compensators current controller

2020 ◽  
Vol 11 (3) ◽  
pp. 1423
Author(s):  
Abdullahi Mohamed ◽  
Suriana Salimin
Keyword(s):  
Fourier Transform ◽  
Fast Fourier Transform ◽  
Single Phase ◽  
Harmonic Distortion ◽  
Total Harmonic Distortion ◽  
Harmonic Order ◽  
Matlab Simulink ◽  
Fast Fourier Transform Analysis ◽  
Current Controller

<span lang="EN-US">This paper observe the total harmonic distortion (THD) performance of single phase five level inverter using proportional resonant (PR) and harmonic compensators current controller. The THD when adding PR current controller was 1.6% at first. After more functions were added to the PR current controller to reduce the THD at the 3<sup>rd</sup>, 5<sup>th</sup> and 7<sup>th</sup> harmonic orders, the THD of the 3<sup>rd</sup> harmonic order was reduced from 0.45% to 0.1% while the 5<sup>th</sup> and 7<sup>th</sup> harmonic orders were reduced from 0.6% and 0.43% to 0.25% and 0.4% respectively. The development and simulation is performed using Matlab/Simulink. The simulation result is performed by using Fast Fourier Transform analysis (FFT) for the harmonics captured.</span>

scholarly journals Differentiating solid, non-macroscopic fat containing, enhancing renal masses using fast Fourier transform analysis of multiphase CT

2018 ◽  
pp. 20170789 ◽  
Author(s):  
Bino A Varghese ◽  
Frank Chen ◽  
Darryl H Hwang ◽  
Steven Y Cen ◽  
Inderbir S Gill ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Fast Fourier Transform ◽  
Renal Masses ◽  
Fast Fourier Transform Analysis ◽  
Multiphase Ct

scholarly journals A fast fourier transform analysis of coronary reperfusion-induced ventricular fibrillation and the modification by dibutyryl cyclic amp in a cat model

1992 ◽  
Vol 15 (10) ◽  
pp. 733-738 ◽  
Author(s):  
Noritami Tashiro ◽  
Kouichirou Kumagai ◽  
Yoshio Yamanouchi ◽  
Kunihiro Matsuo ◽  
Tadayuki Hiroki ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Ventricular Fibrillation ◽  
Cyclic Amp ◽  
Fast Fourier Transform ◽  
Coronary Reperfusion ◽  
Dibutyryl Cyclic Amp ◽  
Fast Fourier Transform Analysis ◽  
Cat Model

Fast Fourier Transform Analysis of Pore Pattern in Anodized Alumina Formed at Various Conditions

2005 ◽  
Vol 5 (12) ◽  
pp. 2070-2075 ◽  
Author(s):  
YeswanthL. Rao ◽  
Venkataramani Anandan ◽  
Guigen Zhang
Keyword(s):  
Fourier Transform ◽  
Fast Fourier Transform ◽  
Fast Fourier Transform Analysis
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