Nazih Moubayed - Academia.edu (original) (raw)

Papers by Nazih Moubayed

2021 International Conference on Innovation and Intelligence for Informatics, Computing, and Technologies (3ICT), Sep 29, 2021

In this paper, the concept of building energy management is highlighted. An overview of the new e... more In this paper, the concept of building energy management is highlighted. An overview of the new enhanced hierarchized hybrid model predictive controller for buildings is discussed. The contribution of this paper concerns shedding light on an enhanced model predictive control strategy, which is the hierarchized hybrid, made up of multi-layers and time scales. It contains complete details about its developed typologies, methods as well as the architecture of the hierarchized hybrid predictive model.

Entropy, Apr 14, 2021

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

ABSTRACT In electrical systems, the battery, which is a device converting the stored energy as ch... more ABSTRACT In electrical systems, the battery, which is a device converting the stored energy as chemical to electrical one, is composed of one or more electrochemical cells. Nickel Cadmium batteries (Ni-Cd) are used in different applications as emergency lighting, mobile phones and others. The "high surge current" obtained in these batteries is depending on the internal resistance which is "relatively low". This paper describes the Ni-Cd battery and its functionality. It represents two models of the battery and the simulation of its charging and discharging modes. The load current and temperature influence on the battery functioning is also treated.

IEEE Conference Proceedings, 2016

IEEE Conference Proceedings, 2016

Renewable & Sustainable Energy Reviews, 2017

ABSTRACT In Lebanon, diesel generators are installed to provide electricity when the public elect... more ABSTRACT In Lebanon, diesel generators are installed to provide electricity when the public electricity is cut off. In fact, a Wind/PV hybrid system can also be used to generate electricity. This paper treats and compare the existing system with a new one containing the old system sources but with different rates and associated to a wind/PV hybrid source. Economic study and comparison between these two types of multisource systems are discussed.

This paper discusses the commutation issues of the power 4-quadrant switches present in the matri... more This paper discusses the commutation issues of the power 4-quadrant switches present in the matrix converter topology research. The appealing features of the topology along with its structural characteristics, including the bi-directionality of power switches used, are innovatively depicted. The operational characteristics dealing with basic and modern current commutation strategies are clearly highlighted. Brief clarifications covering industrial integration is shown.

the paper presents a fault-tolerant multi-sensor fusion approach with Fault Detection and Exclusi... more the paper presents a fault-tolerant multi-sensor fusion approach with Fault Detection and Exclusion (FDE) based on information theory. The Maximum Correntropy Criterion (MCC) in Unscented Information Filter (UIF) form, called (MCCUIF), is used as estimator. The Unscented Transformation (UT) provides an efficient tool to restrict the non-linear state estimation problem. However, the UIF works well with Gaussian noises, where its performance may decrease when dealing with non-Gaussian noises. The MCC is used to deal with non-Gaussian noises (for instance shot noises or Gaussian mixture noises). For detection and exclusion of erroneous measurements, a residual is designed using a- Renyi Divergence (a-RD) between a priori and a posteriori probabilities distributions. Then α-Renyi criterion (a-Rc) is used in the decision part of the proposed approach in order to calculate an adaptive threshold for FDE. In order to target both high integrity and accuracy of the navigation function of an autonomous vehicle in stringent environments (urban canyon, forests …), this paper presents a tightly coupled architecture by merging raw data of a Global Navigation Satellite System (GNSS) with odometer (odo) measurements through the proposed approach. The main contributions of this paper are: - the proposition of a multisensor fusion approach using MCCUIF, - the development of an FDE method using a residual based on a-RD with an adequate choice of a value and adaptive thresholding, - the validation of the proposed approach with real experimental data.

IEEE Conference Proceedings, 2016

Le travail présenté dans ce mémoire a été effectué au sein du GREEN (Groupe de recherche en Elect... more Le travail présenté dans ce mémoire a été effectué au sein du GREEN (Groupe de recherche en Electrotechnique et Electronique de Nancy), UPRESA au CNRS no 7037, implanté à l'ENSEM (Ecole Nationale Supérieure d'Electricité et de Mécanique), école de l'INPL (Institut Nationale Polytechnique de Lorraine). Je tiens à exprimer ma profonde gratitude aux Messieurs B. DA VAT, Professeur à l'INPL et directeur de l'ENSEM, et F. MEIBODY-TABAR, Maître de conférences à l'ENSEM, pour m'avoir accueilli dans leur équipe de recherche et pour avoir dirigé mes travaux par leurs conseils avisés tout au long de mon séjour au sein du laboratoire. Je suis particulièrement reconnaissant à Monsieur J. BONAL, directeur de la promotion industrielle Promothée, pour l'honneur qu'il m'a fait en acceptant de présider le jury de thèse. Je remercie vivement Monsieur J.M. KAUFFMANN, Professeur à l'IGE, de l'honneur qu'il m'a fait en participant à mon jury de thèse et d'être rapporteur de ce travail. Je remercie également Monsieur B. TRANNOY, Professeur à l'ENSEElliT, qui a accepté d'être rapporteur de ce travail. J'adresse également mes remerciements à Monsieur C. NASR, Maître de conférences à l'Université Libanaise-Faculté de Génie-Section 1, pour l'honneur qu'il m'a fait en acceptant de juger ce mémoire. Je tiens à remercier vivement Monsieur F.M. SARGOS, Professeur à l'ENSEM, pour avoir accepté de siéger dans le jury. Je veux aussi exprimer mes remerciements à Monsieur 1. RASOANARIVO, Maître de conférences à l'ENSEM, pour l'aide qu'il m'a apportée dans la partie expérimentale de ce travail. Enfin, j'exprime aussi ma reconnaissance à l'ensemble des chercheurs, des enseignants et du personnel technique du GREEN.

ABSTRACT Different private Lebanese companies start the implementation of hybrid wind-diesel syst... more ABSTRACT Different private Lebanese companies start the implementation of hybrid wind-diesel systems in our country. These systems generate the needed electric power during shortage periods. In large cases, batteries are used for energy storage. This paper treats another method of energy storage which is the Compression Air Energy Storage. The analyze and the economic study of these two energy storage systems are given.

IEEE Transactions on Smart Grid, Sep 1, 2018

Harmonics are found to have deleterious effects on power system equipment including transformers,... more Harmonics are found to have deleterious effects on power system equipment including transformers, capacitor banks, rotating machines etc. However, the Distributed generation interfacing converters (DICs) are able to improve power quality and system efficiency in case of adding a flexible control strategy. This paper describes the voltage distortion generated by nonlinear loads and proposes a new harmonic droop control to reduce the voltage harmonic distortion at the point of common coupling (PCC) and to share the harmonic power between parallel islanded inverters controlled by classical frequency droop method. The main objective it to effectively compensate the harmonic currents drawn by each DIC to supply the nonlinear loads in parallel with voltage harmonic damping at PCC. The operation principle of the proposed harmonic droop is explained in details. Modeling and stability analysis are developed in order to define the control parameters suitable for proper operation. Simulation and experimental results are presented to show the competence of the proposed algorithm in achieving harmonic power sharing and in improving the voltage harmonic distortion at the PCC.

Due to the increasing requirements of safety and reliability in more electrified applications (tr... more Due to the increasing requirements of safety and reliability in more electrified applications (transportation for example), fault detection and diagnosis (FDD) of electrical systems has become a hot research topic. In the process of FDD, there are three steps: fault detection, fault isolation and fault estimation. The first two items are the commonly addressed while the last one is less tackled as it requires the development of a fault model which parameters are relevant of the fault. In this paper, we propose an analytical model of multiple fault effects on a three phases electrical system. The model is based on the expressions of the currents in the (d,q) or Park synchronous rotating reference frame. We prove through simulation results the efficiency of the model for fault combination of gain, offset and phase shift. The results show also the accuracy of the model that could be used for fault estimation purpose.

The paper proposes a very simple hybrid modulator whose role is to control the rectifier & in... more The paper proposes a very simple hybrid modulator whose role is to control the rectifier & inverter stages of a five-phase indirect matrix converter topology. The adopted technique combines between two forms of pulse width modulations PWM and due to this combination, the system advantageously requires very little computation efforts, resulting in high quality waveforms on both source & load extremities. This modulator wins over its previous conventional schemes by ensuring reduction in calculation times along with total preservation of voltage and current act.

British Journal of Applied Science and Technology, Jan 10, 2015

2021 International Conference on Innovation and Intelligence for Informatics, Computing, and Technologies (3ICT), Sep 29, 2021

In this paper, the concept of building energy management is highlighted. An overview of the new e... more In this paper, the concept of building energy management is highlighted. An overview of the new enhanced hierarchized hybrid model predictive controller for buildings is discussed. The contribution of this paper concerns shedding light on an enhanced model predictive control strategy, which is the hierarchized hybrid, made up of multi-layers and time scales. It contains complete details about its developed typologies, methods as well as the architecture of the hierarchized hybrid predictive model.

Entropy, Apr 14, 2021

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

ABSTRACT In electrical systems, the battery, which is a device converting the stored energy as ch... more ABSTRACT In electrical systems, the battery, which is a device converting the stored energy as chemical to electrical one, is composed of one or more electrochemical cells. Nickel Cadmium batteries (Ni-Cd) are used in different applications as emergency lighting, mobile phones and others. The "high surge current" obtained in these batteries is depending on the internal resistance which is "relatively low". This paper describes the Ni-Cd battery and its functionality. It represents two models of the battery and the simulation of its charging and discharging modes. The load current and temperature influence on the battery functioning is also treated.

IEEE Conference Proceedings, 2016

IEEE Conference Proceedings, 2016

Renewable & Sustainable Energy Reviews, 2017

ABSTRACT In Lebanon, diesel generators are installed to provide electricity when the public elect... more ABSTRACT In Lebanon, diesel generators are installed to provide electricity when the public electricity is cut off. In fact, a Wind/PV hybrid system can also be used to generate electricity. This paper treats and compare the existing system with a new one containing the old system sources but with different rates and associated to a wind/PV hybrid source. Economic study and comparison between these two types of multisource systems are discussed.

This paper discusses the commutation issues of the power 4-quadrant switches present in the matri... more This paper discusses the commutation issues of the power 4-quadrant switches present in the matrix converter topology research. The appealing features of the topology along with its structural characteristics, including the bi-directionality of power switches used, are innovatively depicted. The operational characteristics dealing with basic and modern current commutation strategies are clearly highlighted. Brief clarifications covering industrial integration is shown.

the paper presents a fault-tolerant multi-sensor fusion approach with Fault Detection and Exclusi... more the paper presents a fault-tolerant multi-sensor fusion approach with Fault Detection and Exclusion (FDE) based on information theory. The Maximum Correntropy Criterion (MCC) in Unscented Information Filter (UIF) form, called (MCCUIF), is used as estimator. The Unscented Transformation (UT) provides an efficient tool to restrict the non-linear state estimation problem. However, the UIF works well with Gaussian noises, where its performance may decrease when dealing with non-Gaussian noises. The MCC is used to deal with non-Gaussian noises (for instance shot noises or Gaussian mixture noises). For detection and exclusion of erroneous measurements, a residual is designed using a- Renyi Divergence (a-RD) between a priori and a posteriori probabilities distributions. Then α-Renyi criterion (a-Rc) is used in the decision part of the proposed approach in order to calculate an adaptive threshold for FDE. In order to target both high integrity and accuracy of the navigation function of an autonomous vehicle in stringent environments (urban canyon, forests …), this paper presents a tightly coupled architecture by merging raw data of a Global Navigation Satellite System (GNSS) with odometer (odo) measurements through the proposed approach. The main contributions of this paper are: - the proposition of a multisensor fusion approach using MCCUIF, - the development of an FDE method using a residual based on a-RD with an adequate choice of a value and adaptive thresholding, - the validation of the proposed approach with real experimental data.

IEEE Conference Proceedings, 2016

Le travail présenté dans ce mémoire a été effectué au sein du GREEN (Groupe de recherche en Elect... more Le travail présenté dans ce mémoire a été effectué au sein du GREEN (Groupe de recherche en Electrotechnique et Electronique de Nancy), UPRESA au CNRS no 7037, implanté à l'ENSEM (Ecole Nationale Supérieure d'Electricité et de Mécanique), école de l'INPL (Institut Nationale Polytechnique de Lorraine). Je tiens à exprimer ma profonde gratitude aux Messieurs B. DA VAT, Professeur à l'INPL et directeur de l'ENSEM, et F. MEIBODY-TABAR, Maître de conférences à l'ENSEM, pour m'avoir accueilli dans leur équipe de recherche et pour avoir dirigé mes travaux par leurs conseils avisés tout au long de mon séjour au sein du laboratoire. Je suis particulièrement reconnaissant à Monsieur J. BONAL, directeur de la promotion industrielle Promothée, pour l'honneur qu'il m'a fait en acceptant de présider le jury de thèse. Je remercie vivement Monsieur J.M. KAUFFMANN, Professeur à l'IGE, de l'honneur qu'il m'a fait en participant à mon jury de thèse et d'être rapporteur de ce travail. Je remercie également Monsieur B. TRANNOY, Professeur à l'ENSEElliT, qui a accepté d'être rapporteur de ce travail. J'adresse également mes remerciements à Monsieur C. NASR, Maître de conférences à l'Université Libanaise-Faculté de Génie-Section 1, pour l'honneur qu'il m'a fait en acceptant de juger ce mémoire. Je tiens à remercier vivement Monsieur F.M. SARGOS, Professeur à l'ENSEM, pour avoir accepté de siéger dans le jury. Je veux aussi exprimer mes remerciements à Monsieur 1. RASOANARIVO, Maître de conférences à l'ENSEM, pour l'aide qu'il m'a apportée dans la partie expérimentale de ce travail. Enfin, j'exprime aussi ma reconnaissance à l'ensemble des chercheurs, des enseignants et du personnel technique du GREEN.

ABSTRACT Different private Lebanese companies start the implementation of hybrid wind-diesel syst... more ABSTRACT Different private Lebanese companies start the implementation of hybrid wind-diesel systems in our country. These systems generate the needed electric power during shortage periods. In large cases, batteries are used for energy storage. This paper treats another method of energy storage which is the Compression Air Energy Storage. The analyze and the economic study of these two energy storage systems are given.

IEEE Transactions on Smart Grid, Sep 1, 2018

Harmonics are found to have deleterious effects on power system equipment including transformers,... more Harmonics are found to have deleterious effects on power system equipment including transformers, capacitor banks, rotating machines etc. However, the Distributed generation interfacing converters (DICs) are able to improve power quality and system efficiency in case of adding a flexible control strategy. This paper describes the voltage distortion generated by nonlinear loads and proposes a new harmonic droop control to reduce the voltage harmonic distortion at the point of common coupling (PCC) and to share the harmonic power between parallel islanded inverters controlled by classical frequency droop method. The main objective it to effectively compensate the harmonic currents drawn by each DIC to supply the nonlinear loads in parallel with voltage harmonic damping at PCC. The operation principle of the proposed harmonic droop is explained in details. Modeling and stability analysis are developed in order to define the control parameters suitable for proper operation. Simulation and experimental results are presented to show the competence of the proposed algorithm in achieving harmonic power sharing and in improving the voltage harmonic distortion at the PCC.

Due to the increasing requirements of safety and reliability in more electrified applications (tr... more Due to the increasing requirements of safety and reliability in more electrified applications (transportation for example), fault detection and diagnosis (FDD) of electrical systems has become a hot research topic. In the process of FDD, there are three steps: fault detection, fault isolation and fault estimation. The first two items are the commonly addressed while the last one is less tackled as it requires the development of a fault model which parameters are relevant of the fault. In this paper, we propose an analytical model of multiple fault effects on a three phases electrical system. The model is based on the expressions of the currents in the (d,q) or Park synchronous rotating reference frame. We prove through simulation results the efficiency of the model for fault combination of gain, offset and phase shift. The results show also the accuracy of the model that could be used for fault estimation purpose.

The paper proposes a very simple hybrid modulator whose role is to control the rectifier & in... more The paper proposes a very simple hybrid modulator whose role is to control the rectifier & inverter stages of a five-phase indirect matrix converter topology. The adopted technique combines between two forms of pulse width modulations PWM and due to this combination, the system advantageously requires very little computation efforts, resulting in high quality waveforms on both source & load extremities. This modulator wins over its previous conventional schemes by ensuring reduction in calculation times along with total preservation of voltage and current act.

British Journal of Applied Science and Technology, Jan 10, 2015