Abstract :

Multilevel Inverters Have Become A Key Technology In Modern Power Electronic Systems Due To Their Ability To Generate High-quality Output Waveforms With Reduced Harmonic Distortion And Lower Switching Stress. Among Various Configurations, Asymmetrical Multilevel Inverters Are Widely Preferred As They Achieve A Higher Number Of Voltage Levels Using Fewer Power Semiconductor Devices. This Paper Presents A Detailed Study And Performance Analysis Of A Hybrid Bi–Tri Dimensional Space Vector Pulse Width Modulation (SVPWM) Technique Applied To An Asymmetrical Fifteen-level Inverter. The Proposed Modulation Strategy Combines The Advantages Of Both Two-dimensional And Three-dimensional Space Vector Concepts To Enhance Voltage Utilization And Improve Harmonic Performance. The Hybrid Bi–Tri Dimensional SVPWM Effectively Distributes Switching States In The Vector Space, Resulting In Reduced Total Harmonic Distortion (THD), Balanced Capacitor Voltages, And Improved Switching Efficiency. Simulation Studies Are Carried Out Using MATLAB/Simulink To Evaluate The Performance Of The Proposed Method Under Various Modulation Indices And Load Conditions. Key Performance Parameters Such As Output Voltage Waveform Quality, THD, Switching Losses, And Inverter Efficiency Are Analyzed And Compared With Conventional PWM And Standard SVPWM Techniques. The Results Demonstrate That The Proposed Hybrid SVPWM Scheme Significantly Improves Output Voltage Quality And Overall Inverter Performance, Making It Suitable For High-power And Medium-voltage Applications Such As Renewable Energy Systems And Industrial Motor Drives. Keywords: Multilevel Inverter, Asymmetrical Fifteen-Level Inverter, Hybrid SVPWM, Bi–Tri Dimensional Space Vector Modulation, Harmonic Reduction

Published:

27-3-2023

Issue:

Vol. 23 No. 3 (2023)

Page Nos:

81-92

Section:

Articles

License:

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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