Results 41 to 50 of about 23,654 (156)

Carrier-based sinusoidal pulse-width modulation techniques for flying capacitor modular multi-level cascaded converter

open access: yesHeliyon, 2019
Carrier-based sinusoidal pulse-width modulation (PWM) techniques, such as phase disposoed PWM(PD-PWM) and phase shifted PWM (PS-PWM), are widely applied to control the modular multilevel cascaded converters (MMCC) having full H-bridge as sub-modules ...
O.J.K. Oghorada   +3 more
doaj   +1 more source

Navigating the Ethereal Tightrope: The Nanogenerator Manipulates Neurons for Immune Equilibrium

open access: yesAdvanced Science, EarlyView.
This review explores how nanogenerators modulate neuroimmune responses, offering innovative strategies for treating neurological disorders. By interfacing with neural pathways, they enable precise control of immune activity, especially via vagus nerve stimulation.
Jia Du   +5 more
wiley   +1 more source

Design and implementation of a three-level single-phase H-bridge inverter using SHE-PWM

open access: yesDiscover Electronics
The need to generate a pure sinusoidal signal with very low Total Harmonic Distortion (THD) motivates the search for the most effective modulation technique among existing methods.
Jalil Akaaboune   +3 more
doaj   +1 more source

PWM Techniques for Two-Level Voltage Source Inverters: A Comparative Study

open access: yesIEEE Access
Pulse width modulation (PWM) techniques are widely used to control the switching of semiconductors in power converters. This paper presents a comprehensive overview of PWM techniques for two-level voltage source inverters and provides a comparative ...
Battur Batkhishig   +4 more
doaj   +1 more source

Pulse Width Modulation Switching Schemes for Two-Level Five-Phase Voltage Source Inverter

open access: yes, 2021
Received: 28 December 2020 Accepted: 18 March 2021 This paper proposes pulse width modulation schemes for a two-level five-phase voltage source inverter.
S. Gupta, M. Khan, O. Singh
semanticscholar   +1 more source

Advanced Virtual Impedance for Power‐Sharing Improvement in Microgrids Using Different SOGI Methods: A Comparative Study

open access: yesEnergy Technology, EarlyView.
Advanced virtual impedance control integrating multiple second‐order generalized integrator (SOGI) variants—SOGI, ESOGI, MSOGI, and DSOGI—enhances power and harmonic sharing accuracy in islanded microgrids. The comparative study quantifies performance–complexity trade‐offs, demonstrating up to 65% total harmonic distortion (THD) reduction and improved ...
Camelia Ait Hammouda   +3 more
wiley   +1 more source

Improving the Characteristics of the Direct FOC Strategy in DFIG‐Based Wind Turbine Systems Using FOIDD and FOPD Controllers

open access: yesEnergy Science &Engineering, EarlyView.
This study presents a new control strategy for doubly fed induction generator (DFIG) wind turbine systems to overcome the limitations of traditional direct field control using proportional‐integral (DFOC‐PI) regulators, which are sensitive to coefficient changes and lead to low power quality.
Hamza Gasmi   +5 more
wiley   +1 more source

High‐Fidelity Simulation‐Driven Control Framework for Robust Grid Integration of Renewable Energy Systems

open access: yesEnergy Science &Engineering, EarlyView.
This work proposes a high‐fidelity, simulation‐driven control framework for robust grid integration of hybrid PV–wind systems using a modular, hierarchical multi‐loop architecture with adaptive decision logic. The framework coordinates power, DC‐link voltage, and grid currents under fast load and generation changes, enabling safe exploration of extreme
Wulfran Fendzi Mbasso   +5 more
wiley   +1 more source

Implementation of modified trapezoidal commutation scheme for speed control of 1 kW BLDC motor

open access: yesJournal of Mechatronics, Electrical Power, and Vehicular Technology, 2023
The commutation process in brushless DC (BLDC) motors is done electrically and depends on the rotor position feedback. The Six-Step method is the most commonly used method in BLDC control, as it is easy to implement.
Ratih Mar'atus Sholihah   +3 more
doaj   +1 more source

Development and Analysis of Pulse Width Modulation Techniques for Induction Motor Control

open access: yesMehran University Research Journal of Engineering and Technology, 2020
SVPWM (Space Vector Pulse Width Modulation) technique is type of traditional PWM method that efficiently utilizes its dc link voltage and generates high voltage pulses with low harmonic content and high modulation index.
Sunny Katyara   +2 more
doaj   +1 more source

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