Abdallah Saad

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High performance computing (HPC) on the cloud is an emerging approach that can potentially provide a significantly cheaper alternative to supercomputers. However, clouds are largely oriented towards multiprogramming workloads with no significant intercommunications. The placement of tightly coupled HPC virtual machines is thus not guaranteed to be(More)
This paper presents the simulation results in Matlab/Simulink of three versions of permanent magnet synchronous machine (PMSM) vector control. In order to choose the most suitable pulse width modulation (PWM) strategy for controlling the voltage inverter, in term of electromagnetic torque ripple minimization, three modulation techniques associated with the(More)
An improved and modified Direct Torque Control (DTC) algorithms for permanent magnet synchronous motor (PMSM) drive is investigated in this paper, which features low torque and flux ripple and almost fixed switching frequency. Indeed, a first algorithm uses DTC with Space Vector Modulation (SVM), which is called DTC-SVM, improves greatly the torque and flux(More)
The aim of this paper is to presents a contribution for detailed comparison between fuzzy direct torque control (FDTC) strategy of Induction Machine (IM) using FLC and fuzzy logic switchers (FLS), and the conventional DTC using the two PI and IP controller. The performances of those two control schemes are evaluated and compared by simulation in terms of(More)
UNLABELLED To identify anesthetic effects that produce the different components of the complex anesthetic state, the so-called nonanesthetics/nonimmobilizer classes of compounds have been introduced. Because ionotropic gamma-aminobutyric acid type A (GABA(A)) receptors play an important role in the mediation of the central nervous system (CNS) effects of(More)
The main objective of this paper is to present a test a single phase switched capacitor nine-level inverter for PV system applications, with a simple harmonic elimination method. The main elements of the used multilevel inverter are a high power switched capacitor DC-DC converter and a high power DC-AC converter. The studied system with the proposed control(More)
This paper presents a comparative study between two algorithms techniques which are Incremental Conductance and Perturb and Observe used to maximize the efficiency of the solar generator under variations of solar irradiation, temperature and electrical loads. Indeed, the Maximum Power Point Tracking algorithms are used to control a DC-DC boost converter to(More)