Ouafae Bennis

Université d'Orléans | UO · Laboratoire PRISME

On modeling and real-time simulation of a robust adaptive controller applied to a multicellular power converter Introduction. This paper describes the simulation and the robustness assessment of a DC-DC power converter designed to interface a dual-battery conversion system. The adopted converter is a Buck unidirectional and non-isolated converter,...

This article investigates a methodology to design an automated supervision report, ensuring the suitability between the designers and the users of an algorithm. For this purpose, we built a super-vision tool, focused on error diagnosis. The argumentation of the article relies first on the exposition of the reasons to use model reports as a supervis...

The present paper addresses a precise and an accurate mathematical model for three-phase squirrel cage induction motors, based on winding function theory. Through an analytical development, a comparative way is presented to separate the signature between the existence of the outer race bearing fault and the static eccentricity concerning the asymme...

Abstract -- Safety, disponibility and continuity of industrial systems are major issue in maintenance. In the last decades, these points are the important axes in the field of research. A key entity in the production chain is the asynchronous machine. This latter is used in different areas of production therefore its maintenance and monitoring rema...

Abstract—This article investigates a methodology to design an automated supervision report, ensuring the suitability between the designers and the users of an algorithm. For this purpose, we built a supervision tool, focused on error diagnosis. The argumentation of the article relies first on the exposition of the reasons to use model reports as a...

Abstract—The paper presents a strong and realistic model for induction motors including space harmonics of magnetic induction in the sinusoidal distribution model under inter-turn short circuits faults. To represent as much as possible, the reality of the asynchronous machine, we include space harmonics of magnetic induction in sinusoidal distribut...

This manuscript describes a comparative analysis between the variable-bandwidth (VBW) of the hysteresis modulation (HM) and the unipolar pulse-width modulation (PWM) by double intersection, both based on the conventional sliding mode (CSM) strategy. The two adopted techniques are applied to a new topology of a bidirectional asynchronous multichanne...

novel approach to handle all-sensors losses of the internal greenhouse environmental data due to the power cut throughout the greenhouse. The proposed method is based on the principal components analysis (PCA) and the seasonal autoregressive integrated moving average model with exogenous variables (SARIMAX). The exogenous variables are derived from...

Safety, disponibility and continuity of industrial systems are major issue in maintenance. In the last decades, these points are the important axes in the field of research. In fact, in many industrial processes research has picked up a fervent place and a particular importance in the area of fault diagnosis of electrical machines, in fact, a fault...

Pyro-electric Infra Red (PIR) sensors have been widely used in different indoor localization applications during the last decade. These sensors are cheap, non-intrusive and nonwearable, nevertheless, the binary PIR sensor detects only the presence of a human motion in its field of view without any other information about the actual location. Theref...

An effective predictive maintenance reposed on modeling, simulation, and on supervisory and prognostic techniques used to model the various phenomena. On this basis, and based on significant knowledge and parameters, we propose an approach based on stochastic processes that represent a mathematical structure for simulation, mainly the processes of...

Purpose This paper aims to determine the rational operating regime of a rotary percussive drilling machine under optimal conditions. Design/methodology/approach An orthogonal array of Taguchi, signal-to-noise (S/N) ratio, ANOVA Pareto analysis and regression analysis are used to investigate the effect of drilling operational factors on the penet...

The aim of presented research is to develop methods of determining the parameters of rational control of machine operation of percussion drilling during its operation in geological and mining conditions defined. To set the goal of empirical research, it is based on the literature search in which several researchers have studied the mode of percussi...

Stochastic modeling is an approach very interesting for the follow-up time evolution of physical phenomena (state degradation, wear, shock), it is generally used for the description of a correlation between the process size values and those measured or calculated. The objective is to discuss the feasibility of two follow-up models degradation insta...

This paper presents the characteristics of a speed sensorless vector control method of an induction motor operating at high efficiency and high response, in which core loss is taken into account. An improved method of speed estimation that operates on the principle of speed adaptive flux and current observer has been proposed. An observer is basica...

Les filtres actifs parallèles multiniveaux à base d’onduleur de puissance sont utilisés pour supprimer les harmoniques et rendre le facteur de puissance proche de l'unité. Cela permet aussi, de réduire les tensions inverses appliquées aux commutateurs de filtre. Egalement, le nombre élevé des commutateurs nécessite un contrôle compliqué et augmente...

This paper presents a sensorless direct field oriented control fed interior permanent magnet synchronous motor (IPMSM) by using a known mathematical tool. The Kalman filter is an observer for linear and non-linear systems and is based on the stochastic intromission, in others words, noise. It is a question of studying the state and measurement nois...

This paper presents a sensorless direct field oriented control fed interior permanent magnet synchronous motor (IPMSM) by using a known mathematical tool. The Kalman filter is an observer for linear and non-linear systems and is based on the stochastic intromission, in others words, noise. It is a question of studying the state and measurement nois...

Switched reluctance motor drives are increasingly used in high-performance motion control applications where smooth torque is one of the main requirements. However, in wind turbines, the presence of the air gap flux harmonics gives rise to undesirable torque pulsation. These torque pulsations cause performance deterioration in high-performance driv...

Switched reluctance motor drives are increasingly used in high- performance motion control applications where smooth torque is an essential requirement. However, presence of the air gap flux harmonics gives rise to undesirable torque pulsation. These torque pulsations result in performance deterioration in high- performance drive applications. This...

The current evolution of technologies and the techniques of monitoring, analyzes defects led the industrialists to make important progress in the field conditional maintenance, which consists an adequate application with the tools and analyzes powerful, by but the vibratory analysis is that which experiences today the most significant developments...

- La maintenance prédictive est utilisée pour améliorer la disponibilité des organes industriels tout en minimisant les coûts de la maintenance. Le suivi de l'évolution des défauts et la détection précoce s'appuient sur des contrôles périodiques afin d'éviter les pannes et pour en prévoir les opérations de maintenance jugées utiles dont le but de g...

In this paper, a new sensorless interior permanent magnet synchronous motor (IPMSM) drives method with extended Kalman filter (EKF) for speed, rotor position and load torque estimation is proposed. The direct torque control (DTC) technique for permanent magnet synchronous motor (PMSM) is receiving increasing attention due to the important advantage...

In this paper a systematic fuzzy sliding mode controller is presented for permanent magnet synchronous motor (PMSM) sensorless drives. The fuzzy sliding mode controller is designed based on input–output feedback linearization control technique. The extended Kalman filter is used to estimate the speed, position and load torque. The PMSM is fed from...

This paper investigates a Luenberger flux observer with speed adaptation for a direct field oriented control of an induction motor. An improved method of speed estimation that operates on the principle of speed adaptive flux and current observer has been proposed. An observer is basically an estimator that uses a plant model and a feedback loop wit...

This paper presents an analysis by which the dynamic performances of a permanent magnet synchronous motor (PMSM) motor is controlled through a hysteresis current loop and an outer speed loop with different controllers. The dynamics of the wind turbine pumping drive system with (PI) and a fuzzy sliding mode (FSM) speed controllers are presented. In...

In this paper, we present the voltage build up process and the terminal voltage control of an isolated wind powered induction generator driven by a variable speed wind turbine using rotor flux oriented vector control. A description of the studied system is provided, and a simulation study is presented. The model used for the autonomous induction ge...

In this paper, a adaptive non-linear controller is presented for permanent magnet synchronous motor (PMSM) sensorless drives. The adaptive non-linear controller is designed based on an input-output feedback linearization control technique. The unscented Kalman filter is used to estimate the speed, position and load torque. The PMSM is fed by an ind...

This paper deals with the design of sliding mode controllers (SMC) for a vectorcontrolled of permanent magnet synchronous motor (PMSM). The advantages of the sliding mode controller are disturbance rejection, strong robustness and simple implementation. Speed and torque control of permanent magnet synchronous motors are usually attained by the appl...

In this paper, we present the voltage build-up process and the terminal voltage control of an isolated wind powered induction generator driven by a variable speed wind turbine using rotor flux oriented vector control. A description of the studied system is provided, and a simulation study is presented. The model used for the autonomous induction ge...

This paper proposes a new state observer based on an extended Kalman filter (EKF) for the sensorless systematic fuzzy sliding mode control of permanent magnet synchronous motors (PMSM). The observer can obtain a precise estimation of rotor speed and position. Load torque is also observed and used as the feed-forward compensation to improve the syst...

In this paper, a nonlinear controller is presented for permanent magnet synchronous motor (PMSM) sensorless drives. The nonlinear controller is designed based on input-output feedback linearization control technique. The extended Kalman filter is used to estimate the speed, position and load torque. The PMSM is fed from indirect power electronics c...

In this paper, a non-linear controller is presented for permanent magnet synchronous motor (PMSM) sensorless drives. The non-linear controller is designed based on an input-output feedback linearization control technique. The extended Kalman filter is used to estimate the speed, position and load torque. The PMSM is fed by an indirect power electro...

In this article, the detection of a fault on the inner race of a roller bearing is presented as a problem of optimal estimation of a hidden fault, via measures delivered by a vibration sensor. First, we propose a linear model for the transmission of a vibratory signal to the sensors diaphragm. The impact of shocks due to the default is represented...

In this article, the detection of a fault on the inner race of a roller bearing is presented as a problem of optimal estimation of a hidden fault, via measures delivered by a vibration sensor. First, we propose a linear model for the transmission of a vibratory signal to the sensor’s diaphragm. The impact of shocks due to the default is represente...

This work aims at characterizing the behavior of the hydraulic filters used to reduce the polluting particles contained in the hydraulic systems working to high pressure, live with aim at the pollution of the fluid employed. By analyzing the cause of the hydraulic installations breakdowns, one notes that they are caused in most of the cases by the...

L'objet du présent article est une recherche de fond sur la modélisation approfondie de l'écoute passive sonar en vue d'appliquer des techniques avancées de filtrage et détection non-linéaires. On utilise l'ensemble des outils et modèles mathématiques non-linéaires pour aborder de manière fine la réalité des phénomènes dans le sonar passif : - La d...