NDLI: Single-phase hybrid multilevel inverter topology with low switching frequency modulation techniques for lower order harmonic elimination

Content Provider	IET Digital Library
Author	Siddique, Marif Daula Bhaskar, Mahajan Sagar Rawa, Muhyaddin Mekhilef, Saad Memon, Mudasir Ahmed Padmanaban, Sanjeevikumar Almakhles, Dhafer J. Subramaniam, Umashankar
Abstract	A new single-phase asymmetrical multilevel inverter (MLI) is presented in this study. The proposed topology generates a staircase output voltage waveform with a maximum number of levels using less number of components compared to several existing and recent topologies. The basic module consists of a combination of two isolated DC sources with ten switches that produce all the possible number of levels. Other advantages of the proposed MLI include improved output voltage performance and a low blocking voltage of the switches. The low switching frequency pulse width modulation (LSF-PWM) technique has been used for the generation of gate pulses. In the LSF technique, selective harmonic elimination (SHE) and fundamental switching frequency PWM techniques have been discussed for the better output voltage waveform. The optimised switching angles with SHEPWM has been calculated using particle swarm optimisation considering the different combination of the elimination of lower order harmonics. Simulation work was carried out using MATLAB/SIMULINK, and a prototype was implemented to validate the proposed MLI module. Simulation and experimental results have been provided in the study to show the performance of the proposed topology with these modulation techniques.
Starting Page	4117
Ending Page	4127
Page Count	11
ISSN	17554535
Volume Number	13
e-ISSN	17554543
Issue Number	Issue 17, Dec (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2020.0620
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/13/17
Journal	IET Power Electronics
Publisher Date	2021-02-05
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Basic Module Control of Electric Power System Existing Topology Fundamental Switching Frequency PWM Technique Gate Pulses Harmonic Distortion Harmonics Suppression Invertors Isolated DC Source Low Blocking Voltage Low Switching Frequency Modulation Technique Low Switching Frequency Pulse Lower Order Harmonic Elimination Lower Order Harmonics LSF Technique LSF-PWM MLI Module Modulation Technique Optimised Switching Angles Output Voltage Performance Particle Swarm Optimisation Phase Hybrid Multilevel Inverter Topology Power Converter Power Electronics Power Supplies to Apparatus Power Supply PWM Invertors PWM Power Converter Recent Topology Selective Harmonic Elimination Single-phase Asymmetrical Multilevel Inverter Staircase Output Voltage Waveform Supervisory Circuit Switched Mode Converter Switching Converter
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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