Results 31 to 40 of about 23,320 (286)

Model predictive control based selective harmonic mitigation technique for multilevel cascaded H-bridge converters [PDF]

open access: yes, 2011
The selective harmonic elimination (SHE) strategy is specially well suited for high-power applications where the power losses must be kept below strict limits.
Aggrawal, Himanshu   +5 more
core   +1 more source

Application of a Non-carrier-Based Modulation for Current Harmonics Spectrum Control during Regenerative Braking of the Electric Vehicle

open access: yesEnergies, 2020
The regenerative braking of railway vehicles is widely used in DC railway systems all over the world. This mode of operation provides an opportunity to reuse part of the energy consumed by vehicles, and makes the railway system more energy efficient ...
Marcin Steczek   +2 more
doaj   +1 more source

The Essential Role and the Continuous Evolution of Modulation Techniques for Voltage-Source Inverters in the Past, Present, and Future Power Electronics [PDF]

open access: yes, 2016
The cost reduction of power-electronic devices, the increase in their reliability, efficiency, and power capability, and lower development times, together with more demanding application requirements, has driven the development of several new inverter ...
García Franquelo, Leopoldo   +4 more
core   +1 more source

Comparative Analysis of Current and Voltage THD at Different Grid Powers for Powerful Active Front-End Rectifiers with Preprogrammed PWM

open access: yesMachines, 2022
Preprogrammed pulse width modulation (PPWM) techniques are drawing a great deal of interest due to their strong harmonic performance. However, there have not yet been any systematic studies or elaboration of the influence of different grid powers on ...
Alexander S. Maklakov   +2 more
doaj   +1 more source

Comparative research of harmonic suppression algorithm of the three-level NPC converter

open access: yesThe Journal of Engineering, 2018
The three-level NPC converter is an effective solution to medium-voltage and high-power electronic converters. Modulation strategy is one of research focus of the three-level NPC converter.
Li Ning, Gao Tong, Zhang Hui, Yang Ping
doaj   +1 more source

A local defect resonance for linear and nonlinear ultrasonic thermography [PDF]

open access: yes, 2014
An efficient wave-defect interaction is the key to a high thermal response of flaws in ultrasonic thermography. To selectively enhance defect vibrations a concept of local defect resonance is developed and applied to ultrasonic activation of defects ...
Solodov, I., Rahammer, M., Busse, G.
core   +1 more source

A Symbiotic Organism Search-Based Selective Harmonic Elimination in a Switched Capacitor Multilevel Inverter

open access: yesEnergies, 2021
Multilevel inverters are increasingly being employed for industrial applications, such as speed control of motors and grid integration of distributed generation systems.
Manita Kumari   +5 more
doaj   +1 more source

Single phase inverter design based on selective harmonic elimination method

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2013
Minimization of harmonic distortions in voltage source inverters' output wave form is very important. In this paper, a single phase inverter design that can change the operating frequency between 5 Hz – 50 Hz to achieve the keeping the voltage/frequency ...
Faruk Yalçın, Uğur Arifoğlu
doaj   +1 more source

Runge–Kutta optimization‐based selective harmonic elimination in an H‐bridge multilevel inverter

open access: yesIET Power Electronics, 2023
The application of iterative techniques for solving the Selective Harmonic Elimination Pulse Width Modulation (SHE‐PWM) problem, such as the Newton–Raphson (NR) method, can tend to get stuck at local optima in the solution space.
Injila Sajid   +7 more
doaj   +1 more source

Dynamic and Steady State Response Analysis of Selective Harmonic Elimination in High Power Inverters

open access: yesIEEE Access, 2021
Selective harmonic elimination (SHE) technique has drawn tremendous interests for its superior harmonic performance, especially in high power devices where switching power loss and passive filter size are the main concerns. However, the drawbacks of slow
Jingling Cheng   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy