Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Mustapha Ait Lafkih"'
Autor:
Ibrahime Hassan Nejdi, Seddik Bri, Mohamed Marzouk, Sarosh Ahmad, Youssef Rhazi, Mustapha Ait Lafkih, Yawar Ali Sheikh, Adnan Ghaffar, Mousa Hussein
Publikováno v:
Sensors, Vol 23, Iss 8, p 4172 (2023)
The present study proposes a new, highly efficient fractal antenna with ultra-wideband (UWB) characteristics. The proposed patch offers a wide simulated operating band that reaches 8.3 GHz, a simulated gain that varies between 2.47 and 7.73 dB throug
Externí odkaz:
https://doaj.org/article/00b9c713443348f6aa04ed7bd6f45fc4
Publikováno v:
Protection and Control of Modern Power Systems, Vol 5, Iss 1, Pp 1-10 (2020)
Abstract To improve the robustness and performance of the dynamic response of a cage asynchronous motor, a direct torque control (DTC) based on sliding mode control (SMC) is adopted to replace traditional proportional-integral (PI) and hysteresis com
Externí odkaz:
https://doaj.org/article/087dc614da3e4f29a5313db7fbe96523
Publikováno v:
International Journal of Dynamics and Control. 9:1633-1644
The classical Direct Torque Control has been elaborated to achieve advanced performance of asynchronous motor, especially in speed behaviours. Due to its high level of ripples and variable frequency, several modifications have been proposed to improv
Autor:
Ibrahime Hassan Nejdi, Aziz El Fatimi, Youssef Rhazi, Mustapha Ait Lafkih, Seddik Bri, A. V. Senthil Kumar
In this paper, six-band resonant fractal antenna architecture is proposed and fabricated. The ultimate shape is established after six iterations. The resonator is starshaped, and each iteration, a hexadecagon shape from the resonator is subtracted. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::396c4a8a7f746579b28c555d1e107809
https://zenodo.org/record/7145640
https://zenodo.org/record/7145640
Publikováno v:
International Journal of Dynamics and Control. 9:448-462
This article presents an improved direct torque control strategy based on proportional-integral controllers applied to an asynchronous cage motor. The main objective of this study is to improve the system performance by reducing the electromagnetic t
Publikováno v:
International Journal of Electrical and Computer Engineering (IJECE). 12:3850
This letter presents the design, simulation, and measurement of a novel multiband fractal circular antenna for wireless applications. In the antenna design, we used a circular antenna where we took a ring. Then, in the first iteration, we added a new
Publikováno v:
2020 International Symposium on Advanced Electrical and Communication Technologies (ISAECT).
We propose in this letter, a new reconfigurable triangular antenna design with triangular-shaped slots. The proposed idea allowed us to have successfully a reconfigurable multiband operation based on PIN diodes. We got better results in terms of gain
Publikováno v:
2020 International Conference on Electrical, Communication, and Computer Engineering (ICECCE).
The installation studied in this work consists on applying the direct torque control (DTC) based on the sliding mode (SM) to an induction motor which will be supplied once by a conventional two-level inverter and a second time by an NPC three-level i
Publikováno v:
2020 1st International Conference on Innovative Research in Applied Science, Engineering and Technology (IRASET).
Direct Torque Control is a well-known high-performance technique used in asynchronous motors. This conventional technique which uses hysteresis comparators suffers from high torque ripples and variable switching frequency. The most common solution to
Publikováno v:
2020 IEEE 6th International Conference on Optimization and Applications (ICOA).
Accurate speed feedback is always required to achieve high performance and good accuracy control for an asynchronous motor. The use of conventional direct speed sensors involves additional electronic components, additional wiring and space, frequent