Pub Date : 2018-12-01DOI: 10.1109/CCEE.2018.8634520
Sylia Ait Allak, Ferhat Chabane, K. Agroui, M. Zabat, A. Khen, W. Arfi
This work described a process based on the luminescent down shift (LDS) technique, in order to introduce the luminescent organic dye into PVB polymer encapsulant as emergent material for photovoltaic application. For this goal, we propose to study the feasibility to implement the LDS functionality and to identify suitability of available luminescent to be incorporated into the host polymer encapsulant material. The first step to this direction was through a comprehensive optical study of two organic dyes yellow 083 and orange 240 in ethanol solvent. The methodology and experimental conditions such as laboratory polymer preparation and analysis were presented. The absorption spectrum of the prepared PVB material shifts towards longer wavelengths, with increasing organic dye concentration.
{"title":"Optical and thermal analysis of PVB encapsulant polymer doped with yellow 083 and orange 240 organic dyes for photovoltaic application","authors":"Sylia Ait Allak, Ferhat Chabane, K. Agroui, M. Zabat, A. Khen, W. Arfi","doi":"10.1109/CCEE.2018.8634520","DOIUrl":"https://doi.org/10.1109/CCEE.2018.8634520","url":null,"abstract":"This work described a process based on the luminescent down shift (LDS) technique, in order to introduce the luminescent organic dye into PVB polymer encapsulant as emergent material for photovoltaic application. For this goal, we propose to study the feasibility to implement the LDS functionality and to identify suitability of available luminescent to be incorporated into the host polymer encapsulant material. The first step to this direction was through a comprehensive optical study of two organic dyes yellow 083 and orange 240 in ethanol solvent. The methodology and experimental conditions such as laboratory polymer preparation and analysis were presented. The absorption spectrum of the prepared PVB material shifts towards longer wavelengths, with increasing organic dye concentration.","PeriodicalId":200936,"journal":{"name":"2018 International Conference on Communications and Electrical Engineering (ICCEE)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133393374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-01DOI: 10.1109/CCEE.2018.8634433
R. Touhami, D. Slimani, A. Khelil
Orthogonal frequency division multiplexing (OFDM) is a digital modulation technique which it is used now in most new wireless communication systems because it is an effective solution to reduce interference inter-symbols caused by a dispersive channel. A lot of researchers have shown that OFDM is also a promising technology for optical wireless communications, such us in visible light communication (VLC). This paper explains how classical OFDM is adoapted to optical system constraints, also we describe and analyze the implementation of OFDM in visible light communication. Simulation results show that the using of linear scaling (LS) and a direct current (DC) biasing can reduce the peak to average power ratio (PAPR), finally we observe that the bit error rate BER increases as the QAM modulation order increases.
{"title":"Analysis of an OFDM based Indoor Visible Light Communication System","authors":"R. Touhami, D. Slimani, A. Khelil","doi":"10.1109/CCEE.2018.8634433","DOIUrl":"https://doi.org/10.1109/CCEE.2018.8634433","url":null,"abstract":"Orthogonal frequency division multiplexing (OFDM) is a digital modulation technique which it is used now in most new wireless communication systems because it is an effective solution to reduce interference inter-symbols caused by a dispersive channel. A lot of researchers have shown that OFDM is also a promising technology for optical wireless communications, such us in visible light communication (VLC). This paper explains how classical OFDM is adoapted to optical system constraints, also we describe and analyze the implementation of OFDM in visible light communication. Simulation results show that the using of linear scaling (LS) and a direct current (DC) biasing can reduce the peak to average power ratio (PAPR), finally we observe that the bit error rate BER increases as the QAM modulation order increases.","PeriodicalId":200936,"journal":{"name":"2018 International Conference on Communications and Electrical Engineering (ICCEE)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127878109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-01DOI: 10.1109/ccee.2018.8634470
{"title":"ICCEE 2018 Index","authors":"","doi":"10.1109/ccee.2018.8634470","DOIUrl":"https://doi.org/10.1109/ccee.2018.8634470","url":null,"abstract":"","PeriodicalId":200936,"journal":{"name":"2018 International Conference on Communications and Electrical Engineering (ICCEE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129433197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-01DOI: 10.1109/CCEE.2018.8634501
A. Yahiou, A. Bayadi, B. Babes
The inrush currents which generated at the energization moment of an electric transformer can reach high values and cause some abnormal problems in the power system, and the sympathetic inrush current is produced in an electrical network during the energization of a transformer with the existence of other already supplied transformers. The present work has the purpose of eliminating these transient inrush currents. So this paper presents a data acquisition system based on dSPACE board 1104, and a laboratory setup experiment to measure the sympathetic inrush current. Moreover, a control switching to mitigate the sympathetic inrush current in a 2 kVA transformer will be developed and applied experimentally in the laboratory and also in the simulations. This control strategy is performed by considering the residual flux at the opening instant of related circuit-breaker. A comparative study is carried out showing the validity of the mitigation technique.
{"title":"Mitigation of Sympathetic Inrush Current in Transformer Using the Technique of Point on Voltage Wave Control Switching.","authors":"A. Yahiou, A. Bayadi, B. Babes","doi":"10.1109/CCEE.2018.8634501","DOIUrl":"https://doi.org/10.1109/CCEE.2018.8634501","url":null,"abstract":"The inrush currents which generated at the energization moment of an electric transformer can reach high values and cause some abnormal problems in the power system, and the sympathetic inrush current is produced in an electrical network during the energization of a transformer with the existence of other already supplied transformers. The present work has the purpose of eliminating these transient inrush currents. So this paper presents a data acquisition system based on dSPACE board 1104, and a laboratory setup experiment to measure the sympathetic inrush current. Moreover, a control switching to mitigate the sympathetic inrush current in a 2 kVA transformer will be developed and applied experimentally in the laboratory and also in the simulations. This control strategy is performed by considering the residual flux at the opening instant of related circuit-breaker. A comparative study is carried out showing the validity of the mitigation technique.","PeriodicalId":200936,"journal":{"name":"2018 International Conference on Communications and Electrical Engineering (ICCEE)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121549933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-01DOI: 10.1109/CCEE.2018.8634538
Y. Bekakra, Zakaria Lammouchi, H. Serhoud
This paper presents how to integrate Sliding Mode Control (SMC) in speed loop to improve speed and torque performance for Direct Torque Control (DTC) of doubly fed induction motor. Numerical simulation results are carried out using MATLAB/Simulink to illustrate the effectiveness and the robustness of the SMC. The results of the DTC-SMC show good performance compared to the conventional DTC-Integral- Proportional (IP) with no overshoot, without steady state error and with very fast torque response.
{"title":"Improved Speed and Torque Performance for DTC of DFIM using Sliding Mode Speed Controller","authors":"Y. Bekakra, Zakaria Lammouchi, H. Serhoud","doi":"10.1109/CCEE.2018.8634538","DOIUrl":"https://doi.org/10.1109/CCEE.2018.8634538","url":null,"abstract":"This paper presents how to integrate Sliding Mode Control (SMC) in speed loop to improve speed and torque performance for Direct Torque Control (DTC) of doubly fed induction motor. Numerical simulation results are carried out using MATLAB/Simulink to illustrate the effectiveness and the robustness of the SMC. The results of the DTC-SMC show good performance compared to the conventional DTC-Integral- Proportional (IP) with no overshoot, without steady state error and with very fast torque response.","PeriodicalId":200936,"journal":{"name":"2018 International Conference on Communications and Electrical Engineering (ICCEE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122181145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-01DOI: 10.1109/CCEE.2018.8634485
H. Khelfi, S. Hamdani
This paper presents an improved off-line method for induction machine rotor fault diagnosis at low load condition. The proposed method is based on the analysis, in the frequency domain, of the stator current amplitude modulation extracted by calculation of the root of the squared three phase currents. This method is theoretically presented and experimentally validated by testing three different induction machines: one is healthy, the second has one broken bar and the third presents two broken bars. Each motor is subjected to three load conditions (low, medium and high) and supplied by a voltage inverter operating at different frequencies. The main results are compared with these obtained by the traditional MCSA method to show that the proposed method can successfully detect the rotor fault even at low load condition which makes it more suitable then the MCSA method.
{"title":"Stator Current Demodulation Using Square Roots Current Stator for Inverter-Fed Induction Motor at Low Load Conditions","authors":"H. Khelfi, S. Hamdani","doi":"10.1109/CCEE.2018.8634485","DOIUrl":"https://doi.org/10.1109/CCEE.2018.8634485","url":null,"abstract":"This paper presents an improved off-line method for induction machine rotor fault diagnosis at low load condition. The proposed method is based on the analysis, in the frequency domain, of the stator current amplitude modulation extracted by calculation of the root of the squared three phase currents. This method is theoretically presented and experimentally validated by testing three different induction machines: one is healthy, the second has one broken bar and the third presents two broken bars. Each motor is subjected to three load conditions (low, medium and high) and supplied by a voltage inverter operating at different frequencies. The main results are compared with these obtained by the traditional MCSA method to show that the proposed method can successfully detect the rotor fault even at low load condition which makes it more suitable then the MCSA method.","PeriodicalId":200936,"journal":{"name":"2018 International Conference on Communications and Electrical Engineering (ICCEE)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114435667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-01DOI: 10.1109/CCEE.2018.8634565
R. Mohamed, M. Tarik
through this study, an approach has been developed to achieve a power transfer control strategy for supplying an X-rays tube belonging to the field of medical imaging. And those, under ideal conditions, through the stages of conversion of electrical energy, whose qualities of each stage behavior, have been effectively selected and simultaneously arranged. So, in addition, concerns about the size, the volume and the weight of these assemblies, the thermal stresses persist strongly in the fragility of the X-rays generators. To develop the optimization of thermal accumulations, a contribution hybrid controller is tested to overcome these disadvantages. The successive radiological outlets tend to increase the thermal effects, despite the fact that the time and the cooling system, which remain insufficient, lead to a longer and more cost-effective life of these expensive equipment. Instructively, the prescription of any booting supply must be included in the standardized load range, in accordance with the time constants and depreciation developed by the system. However, the results obtained confirm this load selection state, including the performance and response qualities of the system in the vicinity of the conditions previously dictated by the specifications of this load of this type of power supply.
{"title":"Development of Control Strategy for Power Supply to Optimize Thermals Effects Induced in X-rays Tube for Medical use","authors":"R. Mohamed, M. Tarik","doi":"10.1109/CCEE.2018.8634565","DOIUrl":"https://doi.org/10.1109/CCEE.2018.8634565","url":null,"abstract":"through this study, an approach has been developed to achieve a power transfer control strategy for supplying an X-rays tube belonging to the field of medical imaging. And those, under ideal conditions, through the stages of conversion of electrical energy, whose qualities of each stage behavior, have been effectively selected and simultaneously arranged. So, in addition, concerns about the size, the volume and the weight of these assemblies, the thermal stresses persist strongly in the fragility of the X-rays generators. To develop the optimization of thermal accumulations, a contribution hybrid controller is tested to overcome these disadvantages. The successive radiological outlets tend to increase the thermal effects, despite the fact that the time and the cooling system, which remain insufficient, lead to a longer and more cost-effective life of these expensive equipment. Instructively, the prescription of any booting supply must be included in the standardized load range, in accordance with the time constants and depreciation developed by the system. However, the results obtained confirm this load selection state, including the performance and response qualities of the system in the vicinity of the conditions previously dictated by the specifications of this load of this type of power supply.","PeriodicalId":200936,"journal":{"name":"2018 International Conference on Communications and Electrical Engineering (ICCEE)","volume":"147 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115992922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-01DOI: 10.1109/CCEE.2018.8634567
Mourad Chaa, A. Attia, N. Boukezzoula
among the numerous biometric systems existing in the literature, face identification systems have received a considerable interest in latest years. This paper presents a novel approach to face-feature extraction based on the Adaptive Single scale Retinex algorithm (ASSR) and the Gabor filter-bank. The ASSR has been used to extract the illumination (I-image) and the reflectance images (R-image) from each original face image. NIimage (normalization illumination image) has been obtained by eliminating the uneven lighting from the I-image using morphological operations. Then, the Gabor filter bank is applied on the NI-image and the reflectance images to extract feature vectors of these images. These features have been concatenated to make a huge feature vector of every user. While in the next step PCA + LDA technique has been employed to reduce the dimensionality of these novel feature vectors of every user and to further improve its discriminatory power. Finally, the nearest neighbor classifier with cosine Mahalanobis distance has been used for matching and decision stages respectively. Experimental results demonstrate that the proposed system reaches better results than the existing in the state-of-the-art systems.
{"title":"Face Identification System by merging Reflectance and Illumination features","authors":"Mourad Chaa, A. Attia, N. Boukezzoula","doi":"10.1109/CCEE.2018.8634567","DOIUrl":"https://doi.org/10.1109/CCEE.2018.8634567","url":null,"abstract":"among the numerous biometric systems existing in the literature, face identification systems have received a considerable interest in latest years. This paper presents a novel approach to face-feature extraction based on the Adaptive Single scale Retinex algorithm (ASSR) and the Gabor filter-bank. The ASSR has been used to extract the illumination (I-image) and the reflectance images (R-image) from each original face image. NIimage (normalization illumination image) has been obtained by eliminating the uneven lighting from the I-image using morphological operations. Then, the Gabor filter bank is applied on the NI-image and the reflectance images to extract feature vectors of these images. These features have been concatenated to make a huge feature vector of every user. While in the next step PCA + LDA technique has been employed to reduce the dimensionality of these novel feature vectors of every user and to further improve its discriminatory power. Finally, the nearest neighbor classifier with cosine Mahalanobis distance has been used for matching and decision stages respectively. Experimental results demonstrate that the proposed system reaches better results than the existing in the state-of-the-art systems.","PeriodicalId":200936,"journal":{"name":"2018 International Conference on Communications and Electrical Engineering (ICCEE)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116512242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-01DOI: 10.1109/CCEE.2018.8634511
Yasmine Amara, R. Boukenoui, R. Bradai, H. Salhi
This paper introduces an effective design and control of a two-stage standalone photovoltaic system consisting of a DC-DC boost converter as the first stage and a single-phase full H-bridge inverter as the second stage. The DC-DC converter controlled by Perturb and Observe MPPT to achieve maximum electric power under different weather conditions. Moreover, the full H-bridge inverter topology along with two control loops are used as a link between the system and the load. To mitigate noises that could occur in both voltage and current, a second order passive Inductor Capacitor(LC) filter is conceived. Implementation of the system is done by Matlab/Simulink Software and relevant results are discussed.
{"title":"Design and Control of Two-Stage Standalone Photovoltaic Generation System","authors":"Yasmine Amara, R. Boukenoui, R. Bradai, H. Salhi","doi":"10.1109/CCEE.2018.8634511","DOIUrl":"https://doi.org/10.1109/CCEE.2018.8634511","url":null,"abstract":"This paper introduces an effective design and control of a two-stage standalone photovoltaic system consisting of a DC-DC boost converter as the first stage and a single-phase full H-bridge inverter as the second stage. The DC-DC converter controlled by Perturb and Observe MPPT to achieve maximum electric power under different weather conditions. Moreover, the full H-bridge inverter topology along with two control loops are used as a link between the system and the load. To mitigate noises that could occur in both voltage and current, a second order passive Inductor Capacitor(LC) filter is conceived. Implementation of the system is done by Matlab/Simulink Software and relevant results are discussed.","PeriodicalId":200936,"journal":{"name":"2018 International Conference on Communications and Electrical Engineering (ICCEE)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126308244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-01DOI: 10.1109/CCEE.2018.8634459
Linda Hachemi, M. Guiatni, Abedlkrim Nemra, H. Osmani
In this article we present a comparison between two types of fault tolerant control (FTC) on a unicycle-type mobile robot: active and passive approaches. The active approach requires a fault diagnosis step following by a control accommodation step. The fault diagnosis allows to detect and identify the fault occurrence for its accommodation and control reconfiguration. In our work, the fault diagnosis procedure is designed based on the structural analysis technique. However, fault accommodation is designed based on the Recursive Least Squares (RLS) approximation. On the other hand, passive approach is accomplished using the Integrated Sliding Mode Controller (ISMC). This robust technique is implemented without the need for fault diagnosis nor control reconfiguration. Simulations have been performed for reference trajectory tracking while considering a deflation on wheel of robot. The robustness of both the approaches against the fault is analyzed.
{"title":"Fault tolerant control for unicycle mobile robot navigation: active ѵs passive approaches","authors":"Linda Hachemi, M. Guiatni, Abedlkrim Nemra, H. Osmani","doi":"10.1109/CCEE.2018.8634459","DOIUrl":"https://doi.org/10.1109/CCEE.2018.8634459","url":null,"abstract":"In this article we present a comparison between two types of fault tolerant control (FTC) on a unicycle-type mobile robot: active and passive approaches. The active approach requires a fault diagnosis step following by a control accommodation step. The fault diagnosis allows to detect and identify the fault occurrence for its accommodation and control reconfiguration. In our work, the fault diagnosis procedure is designed based on the structural analysis technique. However, fault accommodation is designed based on the Recursive Least Squares (RLS) approximation. On the other hand, passive approach is accomplished using the Integrated Sliding Mode Controller (ISMC). This robust technique is implemented without the need for fault diagnosis nor control reconfiguration. Simulations have been performed for reference trajectory tracking while considering a deflation on wheel of robot. The robustness of both the approaches against the fault is analyzed.","PeriodicalId":200936,"journal":{"name":"2018 International Conference on Communications and Electrical Engineering (ICCEE)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126192384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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