Results 81 to 90 of about 42,783 (242)

A Review of Modular Multilevel Converters for Stationary Applications

Applied Sciences, 2020
A modular multilevel converter (MMC) is an advanced voltage source converter applicable to a wide range of medium and high-voltage applications. It has competitive advantages such as quality output performance, high modularity, simple scalability, and ...
Yang Wang, Ahmet Aksoz, Thomas Geury, Salih Baris Ozturk, Omer Cihan Kivanc, Omar Hegazy   +5 more
doaj   +1 more source

Reduction of total harmonic distortion in power inverters [PDF]

, 2005
The output voltage of PWM power inverters shows harmonic distortion due to several causes; the main ones are the modulation algorithm, nonlinearities in the output filter, dead times, voltage drops across the switches and modulation of the dc bus voltage.
Aymonino, Oscar Andres, Chiacchiarini, Hector Gerardo, Mandolesi, Pablo Sergio, Oliva, Alejandro Raul   +3 more
core  

Influence of the amount of permanent-magnet material in fractional-slot permanent-magnet synchronous machines [PDF]

, 2014
The efficiency of permanent-magnet (PM) synchronous machines with outer rotor and concentrated windings is investigated as a function of the mass of magnets used, keeping the power, volume, and mechanical air-gap thickness constant. In order to be useful
Sergeant, Peter, Van den Bossche, Alex
core   +2 more sources

Bio‐to‐Robot Transfer of Fish Sensorimotor Dynamics via Interpretable Model

Advanced Intelligent Systems, EarlyView.
This study demonstrates how a biologically interpretable model trained on real‐fish muscle activity can accurately predict the motion of a robotic fish. By linking real‐fish sensorimotor dynamics with robotic fish, the work offers a transparent, data‐efficient framework for transferring biological intelligence to bioinspired robotic systems.
Waqar Hussain Afridi, Ahsan Tanveer, Rahdar Hussain Afridi, Muhammad Hamza, Mingxin Wu, Liang Li, Guangming Xie   +6 more
wiley   +1 more source

Improvement of Pulse-Width Modulation Algorithm for Thermal Plant Control

Energy Engineering and Control Systems, 2017
The results of the pulse-width modulation algorithms analysis are presented in the paper. The following two algorithms are analyzed: pulse-width modulator (PWM) based on the sawtooth waveform generator and PWM based on an integrator and a switch element.
Roman Fedoryshyn, Sviatoslav Klos, Volodymyr Savytskyi, Sergiy Kril   +3 more
doaj   +1 more source

Design and Implementation of an Interface Circuit for DC Motor Speed Control Using the PWM Technique [PDF]

Engineering and Technology Journal, 2013
In this paper an electronic interface circuit for controlling the speed of a small permanent magnet DC motor with the aid of a personal computer (PC) has been designed and implemented.
Firas Mohammed Ali Al-Raie
doaj   +1 more source

Evaporative cooling by pulse width modulation (PWM) of optical dipole traps

Physical Review Research
We introduce a method for cooling atoms in an optical dipole trap using pulse-width modulation (PWM) technique, without reducing the laser power of the dipole trap. The PWM technique involves digital modulation of the trap at a fixed frequency. The effective time-averaged dipole potential is lowered by adjusting the duty cycle of the modulation ...
S. Sagar Maurya, Joel M. Sunil, Monu Bhartiya, Pranab Dutta, Jay Mangaonkar, Rahul Sawant, Umakant D. Rapol   +6 more
openaire   +2 more sources

Online control of AC/AC converter based SHEPWM technique [PDF]

, 2014
Conventional online control of AC/AC converter controlled by the selective harmonic elimination pulse width modulation technique (SHEPWM) is based on storing the offline calculated switching angle values in a form of lookup table.
Darwish, M, Hashem, GM
core   +1 more source

A Cost‐Effective Hybrid Method For Homogeneous Matrix Coating in Matrix‐Assisted Laser Desorption/Ionization Mass Spectrometry Imaging Using Simultaneous Spin and Spray Deposition

Analysis &Sensing, EarlyView.
This study introduces an in‐house spin coater for matrix‐assisted laser desorption/ionization mass spectrometry imaging, providing homogeneous matrix deposition via simultaneous spray and spin. The approach yields reproducible signals and clear metabolite distributions in complex tissues.
Lanaia Ítala Louzeiro Maciel, Jussara Valente Roque, Almir Custodio Batista Junior, Gabriel Henry Morais Dufrayer, Naará da Silva Balbino, Keilah Valéria Naves Cavalcante, Marcos Divino Ferreira Junior, Andrea Rodrigues Chaves, Boniek Gontijo Vaz   +8 more
wiley   +1 more source

Design of Electric Wheelchair Using Pulse Width Modulation (PWM) Method

Jurnal Informasi dan Teknologi
An electric wheelchair is an essential mobility device for individuals with physical disabilities. Unlike traditional manual wheelchairs, which can be challenging for users to operate independently, an innovative PWM (Pulse Width Modulation) based electric wheelchair has been developed and tested. This wheelchair employs an Arduino Uno microcontroller,
Fidyatun Nisa, Dahlan Abdullah, Daniel Akhyar   +2 more
openaire   +1 more source