Results 81 to 90 of about 9,758 (236)

Neo-Transmitter Using Pulse Width Modulation (PWM) Method for Wireless Smart Sensors

IEEJ Transactions on Sensors and Micromachines, 2008
The wireless smart sensors have been proposed not only for high-risk and chronically ill patients but also in the healthcare field. The radio frequency (RF) transmitter is necessary to fabricate wireless smart sensors. This paper presents a proposal of the complementary metal-oxide-semiconductor (CMOS) RF transmitter using pulse width modulation (PWM ...
Lee, Wang Hoon, Kim, Jong-Wan, Takao, Hidekuni, Sawada, Kazuaki, Ishida, Makoto   +4 more
openaire   +1 more source

Lifetime Analysis of Grid‐Tied Photovoltaic System Considering DC–DC Converter Ripple and Efficiency

Energy Science &Engineering, EarlyView.
This work presents a comprehensive lifetime analysis of a two‐stage grid‐tied photovoltaic (PV) system by incorporating critical factors such as input current ripple and operating voltage variations, which are often neglected in conventional studies.
Surla Vishnu Kanchana Naresh, Sankar Peddapati, Praveen Kumar Bonthagorla   +2 more
wiley   +1 more source

Flux-Weakening Strategies for a Five-Phase PM Synchronous Machine [PDF]

, 2011
In order to get a low cost mild hybrid system, a global objective is to keep the actual thermal engine architecture. As consequence, the current clawpole synchronous automotive generator must be replaced by a new more powerful electrical machine but with
KESTELYN, Xavier, LU, Li, SEMAIL, Eric, KOBYLANSKI, Luc   +3 more
core  

Three-phase sinusoidal pulse width modulation algorithms

, 2009
The main theme of this bachelors‘s thesis is to introduce readers into the algorithm of generating three-phase sinusoidal pulse width modulation. Main attention is concentrating to methods of generating Pulse width modulation method such as comparate PWM
Rudolf, Ladislav
core   +2 more sources

Droplet size spectrum, velocity, angle and flow rate of pulse‐width‐modulated spray nozzles with adjuvants

Pest Management Science, EarlyView.
Optimizing PWM performance requires not only appropriate duty cycle selection, but also careful choice of adjuvant formulation tailored to each nozzle type. Drift control agents increased droplet size and reduced fine droplets, mitigating PWM‐induced variability. Decreasing the duty cycle consistently narrowed the spray angle.
João Paulo Arantes Rodrigues da Cunha, Erdal Ozkan, Hongyoung Jeon, Heping Zhu   +3 more
wiley   +1 more source

Five-level selective harmonic elimination PWM strategies and multicarrier phase-shifted sinusoidal PWM: A comparison

, 2005
The multicarrier phase-shifted sinusoidal pulse-width modulation (MPS-SPWM) technique is well-known for its important advantage of offering an increased overall bandwidth as the number of carriers multiplied with their equal frequency directly controls ...
Cossar, C., Balouktsis, A., Agelidis, V.G., Balouktsis, I.   +3 more
core  

Sliding Mode Control in Aerospace Applications: A Survey

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Sliding mode control (SMC) enjoys robustness to matched and unmatched (in the case of minimum phase input‐output dynamics) bounded perturbations, and finite time convergence. Second‐order and higher‐order sliding mode control systems (2‐SMC/HOSMC) retain all the advantages of sliding mode control, but in addition can be applied to systems of ...
Yuri Shtessel, Christopher Edwards
wiley   +1 more source

Enhancing Reference Tracking in Induction Motor Drives: A Hybrid Model Predictive Control and Artificial Neural Network Approach

International Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Induction motors (IMs) are widely used in industry for their robustness and cost‐effectiveness, yet their nonlinear and multivariable dynamics pose significant challenges for high‐performance speed control. Model Predictive Control (MPC) is a well‐established solution but suffers from limitations related to model accuracy and parameter ...
Asier del Rio, Oscar Barambones, Eneko Artetxe, Jokin Uralde, Isidro Calvo   +4 more
wiley   +1 more source

Space vector PWM technique for a two-level asymmetrical six-phase drive

The Journal of Engineering, 2019
A space vector pulse-width modulation (PWM) technique for a two-level asymmetrical six-phase drive is proposed for the first time in this study. The PWM technique is developed based on the modified vector space decomposition approach.
Engku Ahmad Rafiqi Bin Engku Ariff, Obrad Dordevic   +1 more
doaj   +1 more source

Time to Breakdown for Type I Motor Winding Insulation Under High‐Frequency High‐Slew‐Rate Square Wave Voltages

High Voltage, EarlyView.
ABSTRACT The emergence of (ultra)wide bandgap ((U)WBG)‐based devices has significantly enhanced performance in high‐frequency switching applications, enabling breakthroughs in electric transportation, aerospace, and renewable energy systems. However, it also presents considerable challenges to insulation systems, such as electric motor winding ...
Easir Arafat, Md Asifur Rahman, Farzana Islam, Mona Ghassemi   +3 more
wiley   +1 more source