Results 11 to 20 of about 24,340 (157)

Power quality enhancement in asymmetrical cascaded multilevel inverter using modified carrier level shifted pulse width modulation approach

open access: yesIET Power Electronics, EarlyView., 2022
New modified carrier‐based level shifted pulse width modulation approaches for single‐phase trinary dc source fed cascaded H‐bridge inverters are proposed in this article. In order to suppress the lower order harmonics, the carrier frequency is often tuned higher. However, switching and electromagnetic interference problems have a significant influence
Arun Vijayakumar   +4 more
wiley   +1 more source

SPACE VECTOR PWM TECHNIQUE FOR THREE- TO SEVEN-PHASE AC-TO-AC POWER CONVERTERS: ANALYSIS AND EXPERIMENTAL VERIFICATIONS [PDF]

open access: yesJournal of Engineering Research - Egypt, 2015
This paper presents Pulse Width Modulation (PWM) control technique for three to seven-phase ac-to-ac power converters. These proposed PWM techniques are based on Indirect Space Vector Modulation (ISVM), which model the converter as two independent stages
Essa Eddin Rashad   +2 more
doaj   +1 more source

Total Harmonic Distortion Measurement of 13-level FCML Inverter for SPWM and THIPWM Method [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2022
One of the main problems for flying capacitor multilevel (FCML) inverter is the higher value of total harmonic distortion (THD) with number of capacitors and switching devices.
BHADRA Ananta Bijoy
doaj  

Power Quality Analysis of a Hybrid Microgrid-Based SVM Inverter-Fed Induction Motor Drive with Modulation Index Diversification

open access: yesEnergies, 2022
The effects of varying modulation indices on the current and voltage harmonics of an induction motor (IM) powered by a three-phase space vector pulse-width modulation (SVM) inverter are presented in this research.
Subramanian Vasantharaj   +3 more
doaj   +1 more source

Design and Harmonic Elimination of sinusoidal pulse width modulation (SPWM) Based Five Level Cascaded H-Bridge Multilevel Inverter for Photovoltaic System for Educational Purposes

open access: yesIndonesian Journal of Teaching in Science, 2023
In this modern era, the electrical power system faces a shortage of fossil fuel-based energy sources. To overcome this problem, people more focus on giving towards renewable energy sources like solar energy, wind energy, and nuclear energy sources.
Bibhu Prasad Ganthia, B. M. Praveen
doaj   +1 more source

A Comprehensive AC Current Ripple Analysis and Performance Enhancement via Discontinuous PWM in Three-Phase Four-Leg Grid-Connected Inverters

open access: yesEnergies, 2020
A complete analysis of the ac output current ripple in four-leg voltage source inverters considering multiple modulation schemes is provided. In detail, current ripple envelopes and peak-to-peak profiles have been determined in the whole fundamental ...
Riccardo Mandrioli   +4 more
doaj   +1 more source

An alternate hybrid PWM for uniform thermal sharing in single phase voltage-source inverter

open access: yesScientific Reports, 2023
The most prevalent reason for IGBT failure in voltage-source inverter (VSI) is thermal stress, which is influenced by the topology and modulation technique adopted. Hence, it is crucial to understand the impact of common sinusoidal pulse width modulation
K. S. P. Kiranmai   +3 more
doaj   +1 more source

Comparison of Pulse Width Modulation Techniques for Diode-Clamped and Cascaded Multilevel Inverters

open access: yesEngineering, Technology & Applied Science Research, 2023
Multilevel inverter technology has become the most significant method of energy conversion from DC to AC for uninterrupted power supply. The quality of the power supply depends on the appearance of harmonics, which is considered a problem that needs to ...
Kishor Gudipati   +4 more
semanticscholar   +1 more source

Elimination of Common Mode Voltage in the Three-To-Nine-Phase Matrix Converter

open access: yesEnergies, 2020
A multiphase matrix converter (MC) is a direct AC/AC converter with n-phase input and m-phase output that is required to supply multiphase systems. To synthesize the controllable sinusoidal output voltage and input current with controllable displacement ...
Janina Rząsa, Elżbieta Sztajmec
doaj   +1 more source

A novel amplitude modulated triangular carrier gain linearization technique for SPWM inverter [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2009
This paper presents a new method to extend the linearity of the sinusoidal pulse width modulation (SPWM) to full range of the pulse dropping region. The proposed amplitude modulated triangular carrier PWM method (AMTCPWM) increases the dynamic range of ...
Ramkumar Subburam   +2 more
doaj   +1 more source

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