Simulation Analysis of Selective Harmonics Elimination scheme for a Symmetric CHB-Multilevel inverter

2019 ◽  
Author(s):  
Partha Sarathi Subudhi ◽  
A. Rakesh Kumar ◽  
S. Krithiga ◽  
T. Deepa ◽  
Sanjeevikumar Padmanaban ◽  
...  
Keyword(s):  
Simulation Analysis ◽  
Multilevel Inverter ◽  
Elimination Scheme

scholarly journals Novel Switching Design Structure for Three Phase 21-Level Multilevel Inverter Fed BLDC Drive Application

2018 ◽  
Vol 9 (3) ◽  
pp. 1202 ◽  
Author(s):  
Srinivas Rao Janiga ◽  
P. Srinivasa Varma ◽  
T. Suresh Kumar
Keyword(s):  
High Voltage ◽  
Simulation Analysis ◽  
Multilevel Inverter ◽  
Voltage Profile ◽  
Multilevel Inverters ◽  
Design Structure ◽  
Three Phase ◽  
Series Configuration ◽  
Inverter Topology ◽  
Switching Devices

Multilevel Inverters offers eminent solutions to high voltage high power applications due to the association of several devices in a series configuration. This is moderate because of getting superior quality voltage waveform when using multilevel inverters as compared to form two-level inverters. Most of the problems raised in this study are the restriction of many switching devices, which can afford high voltage are preferred in the inverter. Here, a novel multilevel inverter topology with no transformers, less number of switching devices and gate drive circuits are proposed. The proposed inverter topologies can valid more voltage levels with favorable advantages such as less number of switching devices and gate driving circuits and also reduce to humble size, agreeable voltage profile. In this paper multilevel converter fed BLDC drive with different voltage levels and simulation analysis is presented. The validity of the proposed three-phase 21-level multilevel inverter fed to BLDC motor drive scheme is verified through Matlab/Simulink Platform.

scholarly journals Multilevel Inverter Compensation System of the Single-phase Based on Instantaneous P-instantaneous Real Power and Q-instantaneous Virtual Power Theory

2015 ◽  
Vol 11 (7) ◽  
pp. 47
Author(s):  
Xijuan Wang ◽  
Tao Zhou ◽  
Yang Zhao ◽  
Jingxiao Feng ◽  
Jialun Zhang ◽  
...  
Keyword(s):  
Single Phase ◽  
Reactive Power ◽  
Simulation Analysis ◽  
Active Power ◽  
Multilevel Inverter ◽  
Phase System ◽  
Virtual Power ◽  
Real Power ◽  
Power Theory ◽  
Before And After

This paper gives an introduction to the single-phase instantaneous PQ (P-instantaneous real power and Q-instantaneous virtual power) theory and carries out the calculation and simulation analysis on reactive power, active power, instantaneous reactive power and instantaneous active power for the single system before and after the compensation of the multilevel inverter. By analyzing the experimental results, it can be seen that harmonic current of the single phase system decreased significantly after using multilevel inverter, while the power factor improved obviously.

scholarly journals A novel multilevel inverter with reduced switch count

2019 ◽  
Vol 8 (3) ◽  
pp. 171
Author(s):  
C. R. Balamurugan ◽  
K. Vijayalakshmi
Keyword(s):  
Pulse Width ◽  
Pulse Width Modulation ◽  
Simulation Analysis ◽  
Sine Wave ◽  
Multilevel Inverter ◽  
Matlab Simulink ◽  
Triangular Waveform

<p><span>This paper presents a multilevel inverter with reduced number of switches to produce a five level output. PWM technique (pulse width modulation) has been used to trigger the MLI switches. It gives reduced harmonic. This proposed topology is connected with R-load and RL-load. Four signals are generated for switching on the multilevel inverter (MLI) switches by comparing four level triangular waveform with sine wave. In this proposed topology two switches are reduced from the conventional Cascaded five level inverter. The simulation analysis has been done by MATLAB/SIMULINK.</span></p>

scholarly journals Analysis on three phase cascaded H-bridge multilevel inverter based on sinusoidal and third harmonic injected pulse width modulation via level shifted and phase shifted modulation technique

2021 ◽  
Vol 12 (1) ◽  
pp. 160
Author(s):  
A. Shamsul Rahimi A. Subki ◽  
Zahariah Manap ◽  
Mohd Zaidi Tumari ◽  
Aiman Zakwan Jidin ◽  
Shahrizal Saat ◽  
...  
Keyword(s):  
Simulation Analysis ◽  
Modulation Depth ◽  
Reference Signal ◽  
Harmonic Distortion ◽  
Multilevel Inverter ◽  
Voltage Source ◽  
Inductive Load ◽  
Third Harmonic ◽  
Modulation Technique ◽  
Three Phase

This work proposes a comparative analysis of sinusoidal and third harmonic injected reference signal modulation accompany with level-shifted PWM technique named as phase disposition (LSPD), phase opposition disposition (LSPOD), and alternate phase opposition disposition (LSAPOD) and phase-shifted PWM technique. Switching pulses from both reference signal and PWM technique have been fed into three phase eleven level cascaded H-bridge multilevel inverter (CHBMLI) fed on a resistive-inductive load with the modulation depth (MD) set to varied from 80% to 100%. For voltage source inverter, total harmonic distortion (THD) content is critical and must be within the allowable range. To prove the feasibility of the reference signal with carrier signal schemes, the entire simulation of the modulation techniques is established and conducted via the Simulink environment. According to the analyzed result, the performance is acceptable in terms of %THDV and %THDI values. Simulation analysis also indicates, at full modulation depth, due to higher fundamental output voltage component produces via the THIPWM modulation technique compared to the SPWM technique, this causes higher %THDV value.

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