Fatma Ben Salem

Fatma Ben Salem
University of Sfax | US · Department of Electrical Engineering

Professor
A member of Control and Energy Management laboratory at Sfax Engineering School.

About

42
Publications
12,486
Reads
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270
Citations
Citations since 2017
17 Research Items
207 Citations
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Introduction
I am currently an associate professor and carrying my research activities in the Research group CEMLab of the Engineering School of Sfax. My research interests modelization, control and optimization of renewable energy systems, diagnostic and control strategies dedicated to electric vehicles, and smart-grid technologies. I have participated in writing several book chapters and the organization of international conferences and workshops. I have also attended some international research missions.
Additional affiliations
January 2016 - December 2018
University of Sfax
Position
  • Professor (Associate)
January 2012 - present
University of Sfax
Position
  • Professor (Assistant)
Education
February 2010 - February 2015
National engineering school of Sfax
Field of study
  • Electrical engineering

Publications

Publications (42)
Article
Full-text available
Nowadays, the growing integration of renewable energy sources poses several challenges to electrical energy systems. The latter need be controlled by grid rules to ensure their stability and maintain the efficiency of renewable energy consumption. In this context, a novel HESS (hybrid energy storage system) control strategy, combining the PV (photo...
Conference Paper
Full-text available
This paper presents a method of optimization energy management in the electrical distribution grids. Where is described the types of household loads, concerning the current and requirement of demand. The proposed techniques, the benefit of IoT, the renewable sources with automation control through wireless telecommunication, the schedule of time op...
Conference Paper
Full-text available
I. ABSTRACT-Machine learning (ML) is increasingly touching all fields in our life and making a huge impact on their improvement. In this paper, we present an overview of several used methods in ML to highlight their interest and future trends. The paper gives a short tour of their use in Power system applications. Then, we focus on their use in sol...
Article
Full-text available
PV energy are enticing an enormous focus in the actual energy scenario. In order to assure the transfer of the maximum power to the load, a boost converter is used containing several MPPT techniques. In this paper, the comparative analysis of the system dynamic behavior has been perform based in distinct MPPT techniques, which are P&O, FLC, ANN-PI...
Article
Full-text available
Due to the importance of the drive system reliability, several diagnostic methods have been investigated for the SSTPI-IM association in the literature. Based on the normalized currents and the current vector slope, this paper investigates a fuzzy diagnostic method for this association. The fuzzy logic technique is appealed in order to process the...
Article
Abstract-Maximum Power Point Tracking (MPPT) is a tool to optimize the use of the produced power in renewable energy systems, particularly in photovoltaic (PV) systems. Many algorithms have been developed and reviewed in the literature. In this work, a Sliding Mode-Artificial Neural Network-based MPPT (SM-ANN-MPPT) technique is proved. A comparison...
Article
Full-text available
Maximum Power Point Tracking (MPPT) is a tool to optimize the use of the produced power in renewable energy systems, particularly in photovoltaic (PV) systems. Many algorithms have been developed and reviewed in the literature. In this work, a Sliding Mode-Artificial Neural Network-based MPPT (SM-ANN-MPPT) technique is proved. A comparison is made...
Article
Full-text available
This paper proposes a straightforward second-order sliding mode control (SMC) approach to minimize current distortions and torque ripples of a switched reluctance motor (SRM). In the first step, conventional SMC is briefly recalled and detailed. Then, a special attention is paid to the synthesis and the implementation of a second-order (SM2) approa...
Chapter
Full-text available
The chapter is devoted to the DTC and DTC-SVM position control approaches of induction motor (IM) allowing the movement of a photovoltaic panel according to the maximum sunshine position to extract a high efficiency of the system. The DTC is selected to full the application requirements, especially a maximum torque at standstill. This feature is ne...
Chapter
Full-text available
Abstract Electric vehicles (EVs) have several advantages such as energy efficiency, virtually lack of pollution, and the availability of electric energy through electric distribution systems. Among the major components of an EV is the block control of the AC motor. Many modern high-performance control technologies are being used in EV controllers,...
Chapter
Full-text available
This chapter presents a comparison study between two Direct Torque Control (DTC) strategies dedicated to electric vehicle applications: the basic DTC strategy with uncontrolled switching frequency using hysteresis controllers and a new strategy with fixed switching strategy using PWM torque controller. The proposed DTC strategy is developed in orde...
Chapter
Full-text available
In order to improve performances of the induction motor (IM) speed control under sliding mode (SM) DTC-SVM, the paper proposes a SM DTC-SVM based adaptive load torque. The aim of the suggested approach consists to discard load disturbances effects on the IM operating. For this reason, an adaptive estimator of the load torque has been developed to o...
Article
Full-text available
Direct torque control is a powerful approach widely used for the control of electrical machines. However, this approach is sensitive to several problems, such as the stator flux demagnetization phenomenon and the appearance of undesirable torque ripples, especially at low-speed operation. To overcome these problems, a variable structure control app...
Conference Paper
Full-text available
This work is developed within the objective to discard load disturbances effects on the induction machine drives under DTC-SVM control. The paper is devoted to the presentation of a comparison study between two DTC-SVM strategies applied to the speed control of an induction motor: (i) a DTC-SVM control using PI controllers and (ii) a DTC-SVM contro...
Conference Paper
Full-text available
This paper aims to develop a novel pitch angle control for large variable speed wind turbine considering actuator dynamics. In fact, two Sliding Mode Controllers have been designed to achieve required performances. The first one is used below rated wind speed to maximize the extracted power. However, the second one is applied above rated wind speed...
Conference Paper
Full-text available
In this study, the cell behavior in a photovoltaic (PV) module will be investigated by using two electrical characteristics models of mono-crystalline solar cells: (i) the single diode model, and (ii) the double diode model. Several of the used models parameters are not provided by the manufacturer. The identification of internal parameters of the...
Conference Paper
Full-text available
This paper presents a comprehensive study of photovoltaic system using three topologies of DC-DC converters with extraction of maximum power. A mathematical model presenting an equivalent electric circuit of the PV module is presented as well as the determination of various internal parameters. A comparison of two strategies of connection (direct a...
Conference Paper
Full-text available
This paper aims to design a pitch control system for wind turbine to improve system dynamic performances. As winds turbines are a nonlinear, strong coupling systems, the sliding mode control is the best approach for its control. At first, a simple sliding mode controller has been developed and implemented on the turbine. Then, an improving sliding...
Conference Paper
This paper presents a contribution to the field of photovoltaic conversion system. An equivalent electrical circuit model of a PV module is presented with the appropriate algorithm of determination of internal parameters. An adaptation stage consisting of buck DC-DC converter is implemented between PV generators and the pure resistive load (lamp)....
Article
This work is aimed at looking into potential advantages of direct torque control (DTC) strategies for position regulation applications. Of particular interest is the capability exhibited by DTC strategies to develop the maximum torque at standstill. Within this background, the paper is devoted to the presentation of a comparison study between three...
Conference Paper
This paper investigates and studies the use of direct power control (DPC) approach for controlling three-phase AC/DC converter included in a wind conversion system based doubly fed induction generator (DFIG). Instantaneous active and reactive powers are directly controlled by selecting the optimum state of the converter. The DC-bus voltage is maint...
Conference Paper
Full-text available
This paper is aimed at looking into the investigation of potentialities of DTC-SVM approaches applied to the position control of induction motors. Of particular interest is the capability exhibited by DTC strategies to develop the maximum torque at standstill. Within this background, the purpose of this paper is to compare (i) the conventional DTC...
Conference Paper
Full-text available
This paper is aimed at looking into the investigation of potentialities of DTC-SVM approaches applied to the position control of induction motors. Of particular interest is the capability exhibited by DTC strategies to develop the maximum torque at standstill. Within this background, the purpose of this paper is to compare (i) the conventional DTC...
Article
Abstract—Direct torque control (DTC) with space vector modulation (SVM) ensures constant switching frequency and high-performance operation, both in the steady state and under transient conditions. This article is devoted to the presentation of a comparison study between two DTC-SVM approaches for electric propulsion systems applications: (i) DTC-S...
Article
Full-text available
paper is concerned with a framework which unifies direct torque control space vector modulation (DTC-SVM) and variable structure control (VSC). The result is a hybrid VSC-DTC-SVM controller design which eliminates several major limitations of the two individual controls and retains merits of both controllers. It has been shown that obtained control...
Conference Paper
The aim of this work is the study and the modeling of a variable speed chain of wind conversion based on a doubly fed induction generator (DFIG) coupled to the distribution network and controlled by direct power control (DPC), through a power converter in the rotor side. After modeling the whole system, this paper presents the Maximum Power Point T...
Conference Paper
This paper describes a robust sliding mode control with parameter adaptive estimation for a DTC-SVM system. The proposal combines advantages and benefits of both (i) DTC-SVM approach, which produces constant switching frequency, and overcomes several problems of induction machine control, and (ii) variable-structure controllers (VSC) which offer fa...
Conference Paper
This paper describes a PV-FC hybrid system consisting of a photovoltaic generator, a proton exchange membrane fuel cell (PEMFC), an electrolyzer and a hydrogen storage tank. The load is supplied from the photovoltaic generator through a chopper (DC-DC) governed by a control MPPT (maximum power point tracking). If the power delivered by the photovol...
Article
Full-text available
This paper deals with the adaptive sliding mode control DTC-SVM approach dedicated to the position control of photovoltaic panels according to the maximum sunshine position to allow a high efficiency of photovoltaic systems. The paper is devoted to the presentation of a comparison study between three DTC-SVM strategies applied to the position contr...
Article
Full-text available
This paper presents two mathematical models of mono-crystalline solar photovoltaic (PV) cells: (i) the ideal model, and (ii) the single resistance model. An identification algorithm of internal parameters of photovoltaic cell using electrical characteristics provided by the manufacturer datasheet has been suggested. Several of these parameters are...
Conference Paper
Full-text available
The paper deals with a comparison between two DTC-SVM approaches: (i) DTC-SVM with a hysteresis controllers, and (ii) DTC-SVM with a predictive controller. Following the formulation of both DTC-SVM approaches, their implementation in the Matlab-Simulink environment has been treated. The transient behavior as well as the steady state features of the...
Conference Paper
Full-text available
This paper is aimed at taking advantage of the potentiality of direct torque control (DTC) strategies in position regulation applications. Of particular interest is the capability exhibited by DTC strategies to develop the maximum torque at standstill. Within this background, the paper is aimed at a comparative study between three DTC strategies de...
Conference Paper
Full-text available
This paper is aimed at a comparative study between the performance of two DTC strategies with fixed commutation frequency: (i) a strategy based on the calculation of an optimal commutation time, and (ii) a strategy using new controllers of the electromagnetic torque and of the stator flux including triangular carriers at fixed frequencies. Firstly,...
Article
Full-text available
In this paper, an approach consisting in moving photovoltaic panels according to the maximum sunshine position in order to extract a high efficiency is proposed. Firstly, the model of the photovoltaic generator is described. Secon- dly the designed maximum sunshine position tracking system is presented and experimental results consisting of no-load...
Article
Full-text available
Purpose This paper aims to discuss a comprehensive analysis of the effects of torque and flux hysteresis bands on the inverter average switching frequency considering an induction machine drive under the control of the Takahashi DTC strategy. Design/methodology/approach The analysis of the effects of torque and flux hysteresis bands on the inverte...
Article
Full-text available
This paper deals with implementation of the field-oriented control strategy in an induction machine. The rotor flux orientation strategy tends to give true decoupling control, where the control reference frame rotates at synchronous speed and is held by the rotor flux. Simulation results show that the machine presents a high dynamic performance sim...
Article
The paper deals with a comparison between three DTC strategies: (i) the original one introduced by Takahashi which is based on an empirical approach, (ii) a strategy based on an analytical approach which takes into account the torque dynamic considering four quadrant operation, and (iii) an extension of the second approach considering twelve ‘activ...

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Projects

Project (1)
Archived project
Mediterian Renewable Energy Workshop: photovoltaic integration 26-october-2019 ISGIS : high institute of industrial management of Sfax