Results 91 to 100 of about 6,993,106 (201)

Comparison of Total Harmonic Distortion (THD) in Three-Level, Three-Phase Inverters Using Cascaded H-Bridge (CHB) and Neutral-Point-Clamped (NPC) Topologies

Mağallaẗ Al-kūfaẗ Al-handasiyyaẗ
Utilizing the same parameters for operation, 50 Hz frequency, and 380 V line voltage, every single inverter is represented mathematically on the MATLAB/Simulink environment.
Wadhah Hasan
doaj   +1 more source

Precision of the Sinefitting-Based Total Harmonic Distortion Estimator [PDF]

, 2016
An analytical expression for the standard deviation of Total Harmonic Distortion (THD) estimation is derived. It applies to the case where the estimator uses sine fitting.
Alegria, F. C., Alegria Francisco C.
core   +1 more source

Harmonic mitigation for symmetrical cascaded h-bridge inverter using sparrow search algorithm

Journal of Electrical Systems and Information Technology
Harmonics in multilevel inverters (MLIs) pose a critical challenge in power electronic systems, degrading power quality and complicating compliance with grid standards.
Daniel Igenumah Tennyson, Abdussamad Umar Jibia, Ibrahim Haruna Shanono, Nasiru Bello Kadandani   +3 more
doaj   +1 more source

Generalized formulation of multilevel selective harmonic elimination PWM: Case I-Non-Equal DC Sources [PDF]

, 2006
The paper presents optimal solutions for eliminating harmonics from the output waveform of a multilevel staircase pulse-width modulation (PWM) method with non-equal dc sources.
Dahidah, M.S.A., Agelidis, V.G.
core  

Total Harmonics Distortion (THD) Reduction Techniques in Class D Amplifiers

, 2023
Class D amplifiers find widespread application in audio devices for driving load speakers, primarily due to their remarkable efficiency. Nonetheless, this enhanced efficiency often comes at the expense of reduced linearity. Hence, techniques for reducing
Huang, Shijie (author)
core  

Minimization of Total Harmonic Distortion of A Single Phase Inverter [PDF]

, 2013
An approach of reducing the harmonics contained in the output of a single phase half bridge inverter has been depicted in this paper. The reason behind it is to improve the Total Harmonic Distortion (THD).
Rahman, Habibur, Azim, Imran
core   +1 more source

Design of Six Pulse Bridge Multiplication Converter Model for Current Harmonic Elimination of Three Phase AC-DC Converter [PDF]

Mehran University Research Journal of Engineering and Technology, 2014
The recent development of semiconductor technology and wide spread use of power electronic devices in power system have open the era of the power system harmonics due to increasing penetration of non-linear loads.
Mansoor Ahmed Soomro, Irfan Ahmed Halepoto, Anwer Ali Sahito   +2 more
doaj  

Harmonic Impact of Plug-In Hybrid Electric Vehicle on Electric Distribution System

Modelling and Simulation in Engineering, 2016
This paper presents the harmonic effects of plug-in hybrid electric vehicles (PHEV) on the IEEE 37-bus distribution system at different PHEV penetration levels considering a practical daily residential load shape.
A. Aljanad, Azah Mohamed
doaj   +1 more source

Mitigating voltage quality issues in Sawla Substation, Ethiopia: A dynamic voltage restorer controlled by neural networks and fuzzy logic

Results in Engineering
Ensuring power quality in distribution systems is critical due to voltage sags, swells, and harmonic distortions, which affect system performance and equipment reliability.
Balakumar Subramanian, Alazar Demamu, Andinet Anjamo, Muluneh Lemma, Yalisho Girma   +4 more
doaj   +1 more source