Pub Date : 2017-05-01DOI: 10.1109/ICOSC.2017.7958747
H. Ferhati, F. Djeffal, A. Benhaya
In this paper, a new approach based on ZnO/Silicon interface engineering aspect is proposed to enhance the absorbance performance for n-ZnO/p-Si hetero-junction based solar cell. The merits of using grooves morphology in the ZnO/Silicon interface to improve the photovoltaic performance are investigated numerically using accurate solutions of Maxwell's equations. It is found that the proposed interface morphology arises the optical confinement effect which can efficiently improve the device optical performance. Besides, the proposed structure exhibits superior photovoltaic performance and offers improved absorbance behavior as compared to the conventional counterpart. Moreover, the introduced grooves in the n-ZnO/p-Si interface play a crucial role in increasing the light absorbance through modulating the electric field behavior inside the absorber region. These characteristics not only underline the enhanced optical behavior of the investigated structure but also bring the possibility of overcoming the tradeoff between the high efficiency and the low fabrication cost. This makes the proposed n-ZnO/p-Si hetero-junction solar cell with interface texturization a potential alternative for developing high-performance solar cell with low manufacturing cost.
{"title":"Enhanced performance of ZnO/c-Si solar cell using interface engineering with grooves morphology","authors":"H. Ferhati, F. Djeffal, A. Benhaya","doi":"10.1109/ICOSC.2017.7958747","DOIUrl":"https://doi.org/10.1109/ICOSC.2017.7958747","url":null,"abstract":"In this paper, a new approach based on ZnO/Silicon interface engineering aspect is proposed to enhance the absorbance performance for n-ZnO/p-Si hetero-junction based solar cell. The merits of using grooves morphology in the ZnO/Silicon interface to improve the photovoltaic performance are investigated numerically using accurate solutions of Maxwell's equations. It is found that the proposed interface morphology arises the optical confinement effect which can efficiently improve the device optical performance. Besides, the proposed structure exhibits superior photovoltaic performance and offers improved absorbance behavior as compared to the conventional counterpart. Moreover, the introduced grooves in the n-ZnO/p-Si interface play a crucial role in increasing the light absorbance through modulating the electric field behavior inside the absorber region. These characteristics not only underline the enhanced optical behavior of the investigated structure but also bring the possibility of overcoming the tradeoff between the high efficiency and the low fabrication cost. This makes the proposed n-ZnO/p-Si hetero-junction solar cell with interface texturization a potential alternative for developing high-performance solar cell with low manufacturing cost.","PeriodicalId":113395,"journal":{"name":"2017 6th International Conference on Systems and Control (ICSC)","volume":"9 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123718834","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 : 2017-05-01DOI: 10.1109/ICOSC.2017.7958702
Ameni Kchaou, A. Ayadi, A. Naamane, N. M'Sirdi, Y. Koubaa
This paper presents a photovoltaic (PV) system with an adaptive sliding mode control based maximum power point tracking (MPPT) algorithm. The main aim of this work is to maximize power extraction from the photovoltaic generator. A novel method, which is able to achieve this aim, is presented by using an adaptive sliding mode controller (ASMC) that drives a boost converter connected between the PV generator and the load. Both robustness and stability of the ASMC controller are investigated against weather changing conditions. Simulation results with real data, under MATLAB-SIMULINK, are given to demonstrate the effectiveness of the proposed approach.
{"title":"An Adaptive Sliding Mode Control based Maximum power point tracking method for a PV stand-alone system","authors":"Ameni Kchaou, A. Ayadi, A. Naamane, N. M'Sirdi, Y. Koubaa","doi":"10.1109/ICOSC.2017.7958702","DOIUrl":"https://doi.org/10.1109/ICOSC.2017.7958702","url":null,"abstract":"This paper presents a photovoltaic (PV) system with an adaptive sliding mode control based maximum power point tracking (MPPT) algorithm. The main aim of this work is to maximize power extraction from the photovoltaic generator. A novel method, which is able to achieve this aim, is presented by using an adaptive sliding mode controller (ASMC) that drives a boost converter connected between the PV generator and the load. Both robustness and stability of the ASMC controller are investigated against weather changing conditions. Simulation results with real data, under MATLAB-SIMULINK, are given to demonstrate the effectiveness of the proposed approach.","PeriodicalId":113395,"journal":{"name":"2017 6th International Conference on Systems and Control (ICSC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128383902","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 : 2017-05-01DOI: 10.1109/ICOSC.2017.7958718
M. O. F. D. Oliveira, Marcos R. Fernandes, R. F. Souto
This paper presents some design aspects related to the construction of a Low-cost Prototype of Twin Rotor MIMO System (TRMS) for the purpose of academic studies. Filtering and data fusion are used to extract reliable angles measurements from the sensors. The mathematical modeling of the prototype is done, and its parameters are obtained with linear identification, allowing the design of a feedback LQG controller. The proposed LQG controller is compared with a PID controller tuned by Genetic Algorithm (GA) in preliminary tracking experiments. The advantages of the LQG control is showed both in simulation and on the real set-up.
{"title":"Implementation of a Low-cost Prototype of Twin Rotor for academic studies in identification, optimal control and stochastic filtering","authors":"M. O. F. D. Oliveira, Marcos R. Fernandes, R. F. Souto","doi":"10.1109/ICOSC.2017.7958718","DOIUrl":"https://doi.org/10.1109/ICOSC.2017.7958718","url":null,"abstract":"This paper presents some design aspects related to the construction of a Low-cost Prototype of Twin Rotor MIMO System (TRMS) for the purpose of academic studies. Filtering and data fusion are used to extract reliable angles measurements from the sensors. The mathematical modeling of the prototype is done, and its parameters are obtained with linear identification, allowing the design of a feedback LQG controller. The proposed LQG controller is compared with a PID controller tuned by Genetic Algorithm (GA) in preliminary tracking experiments. The advantages of the LQG control is showed both in simulation and on the real set-up.","PeriodicalId":113395,"journal":{"name":"2017 6th International Conference on Systems and Control (ICSC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128653645","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 : 2017-05-01DOI: 10.1109/ICOSC.2017.7958670
L. Noureddine, A. Kouzou, M. Guemana, A. Hafaifa
In this study we investigate the possibility of rotor broken bar fault detection in squirrel cage induction generator of a wind turbine using spectral analysis of the stator currents. The numerical method, presented in this work, based on the Hilbert Huang transform shows the possibility of improving the detection of faults in electrical machines. Using the Hilbert Huang transform analyses the stator current signal using intrinsic mode functions, which are extracted using the process of empirical mode decomposition. However, the use of Hilbert transform based time domain approach in Hilbert Huang transform for analysis of stator current signature leads to scope for subjective error in calculation of characteristic defect frequencies of the broken rotor bars.
{"title":"Faults detection in squirrel cage induction generator rotor on wind turbine: Hilbert Huang transform application","authors":"L. Noureddine, A. Kouzou, M. Guemana, A. Hafaifa","doi":"10.1109/ICOSC.2017.7958670","DOIUrl":"https://doi.org/10.1109/ICOSC.2017.7958670","url":null,"abstract":"In this study we investigate the possibility of rotor broken bar fault detection in squirrel cage induction generator of a wind turbine using spectral analysis of the stator currents. The numerical method, presented in this work, based on the Hilbert Huang transform shows the possibility of improving the detection of faults in electrical machines. Using the Hilbert Huang transform analyses the stator current signal using intrinsic mode functions, which are extracted using the process of empirical mode decomposition. However, the use of Hilbert transform based time domain approach in Hilbert Huang transform for analysis of stator current signature leads to scope for subjective error in calculation of characteristic defect frequencies of the broken rotor bars.","PeriodicalId":113395,"journal":{"name":"2017 6th International Conference on Systems and Control (ICSC)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128727578","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 : 2017-05-01DOI: 10.1109/ICOSC.2017.7958656
R. Bouchebbat, S. Gherbi
The PID controller is the most used controller in the industry thanks to its simplicity and satisfactory performances, unfortunately there is a class of systems that can't achieve satisfactory performances with a simple PID controller as the nonlinear and the delayed systems. These last years, it appeared a lot of innovative control techniques as the bio-inspired methods, one of the most promising of them is the immune PID controller, it is inspired by the immune system regulating mechanism known by its robustness and self-adaptability. In this paper, the immune feedback mechanism and fuzzy inference are incorporated to design a fuzzy immune PID adaptive controller while the particle swarm optimization (PSO) algorithm is used to optimize its parameters. The simulation results using a main steam temperature system as the controlled plant, verify that the strategy has strong adaptability to the transformation of the system parameters and has advantages of a good time performances and robustness ability.
{"title":"Design and application of fuzzy immune PID adaptive control based on particle swarm optimization in thermal power plants","authors":"R. Bouchebbat, S. Gherbi","doi":"10.1109/ICOSC.2017.7958656","DOIUrl":"https://doi.org/10.1109/ICOSC.2017.7958656","url":null,"abstract":"The PID controller is the most used controller in the industry thanks to its simplicity and satisfactory performances, unfortunately there is a class of systems that can't achieve satisfactory performances with a simple PID controller as the nonlinear and the delayed systems. These last years, it appeared a lot of innovative control techniques as the bio-inspired methods, one of the most promising of them is the immune PID controller, it is inspired by the immune system regulating mechanism known by its robustness and self-adaptability. In this paper, the immune feedback mechanism and fuzzy inference are incorporated to design a fuzzy immune PID adaptive controller while the particle swarm optimization (PSO) algorithm is used to optimize its parameters. The simulation results using a main steam temperature system as the controlled plant, verify that the strategy has strong adaptability to the transformation of the system parameters and has advantages of a good time performances and robustness ability.","PeriodicalId":113395,"journal":{"name":"2017 6th International Conference on Systems and Control (ICSC)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114850501","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 : 2017-05-01DOI: 10.1109/ICOSC.2017.7958684
Abdelhafid Zenati, Messaoud Chakir, M. Tadjine
Mathematical models are a powerful research tool that can be applied to understanding leukemia. They have been applied to evaluate existing therapies and to suggest new ones. In this paper, we propose a therapy approach based on an optimal control which minimizes the number of cancerous cells and the side effects of the treatment. To this end, we use a nonlinear distributed delay system obtained from the original model. We first prove that there exists an optimal control that eradicates the cancerous cells. Then, applying the maximum principle of Pontryagin, we design the optimal control based therapy to treat Myelode Acute Leukemia. Simulation based on realistics cases are conducted to illustrate the obtained results.
{"title":"Optimal control of a coupled model for healthy and cancerous cells dynamics in Acute Myeloid Leukemia - a therapy approach","authors":"Abdelhafid Zenati, Messaoud Chakir, M. Tadjine","doi":"10.1109/ICOSC.2017.7958684","DOIUrl":"https://doi.org/10.1109/ICOSC.2017.7958684","url":null,"abstract":"Mathematical models are a powerful research tool that can be applied to understanding leukemia. They have been applied to evaluate existing therapies and to suggest new ones. In this paper, we propose a therapy approach based on an optimal control which minimizes the number of cancerous cells and the side effects of the treatment. To this end, we use a nonlinear distributed delay system obtained from the original model. We first prove that there exists an optimal control that eradicates the cancerous cells. Then, applying the maximum principle of Pontryagin, we design the optimal control based therapy to treat Myelode Acute Leukemia. Simulation based on realistics cases are conducted to illustrate the obtained results.","PeriodicalId":113395,"journal":{"name":"2017 6th International Conference on Systems and Control (ICSC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128179466","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 : 2017-05-01DOI: 10.1109/ICOSC.2017.7958663
Z. Fenchouche, Messaoud Chakir, O. Benzineb, M. Boucherit, M. Tadjine
In this paper, a design of robust controller based on Coefficient diagram method is investigated, to be used to control the outlet temperature of a solar plant based on cylindrical-parabolic collectors. It is noted that although the responses of the control system satisfy both transient and steady state specifications, the transient response generally still has long response time. In order to improve the speed of the system response, a PID controller is added into the controller designed by CDM. The design of both of CDM and PID controllers is done with a linearization of the nonlinear uncertain system described by two Partial differential equations around an operating point of the real system, then the designed controllers will be applied to the nonlinear system. The simulation results show that the performance of the controller based on CDM combined with PID has short response time, with no overshoot and the best perturbation rejection properties.
{"title":"Robust controller design for solar plant using extended Coefficient diagram method (CDM) incorporating PID","authors":"Z. Fenchouche, Messaoud Chakir, O. Benzineb, M. Boucherit, M. Tadjine","doi":"10.1109/ICOSC.2017.7958663","DOIUrl":"https://doi.org/10.1109/ICOSC.2017.7958663","url":null,"abstract":"In this paper, a design of robust controller based on Coefficient diagram method is investigated, to be used to control the outlet temperature of a solar plant based on cylindrical-parabolic collectors. It is noted that although the responses of the control system satisfy both transient and steady state specifications, the transient response generally still has long response time. In order to improve the speed of the system response, a PID controller is added into the controller designed by CDM. The design of both of CDM and PID controllers is done with a linearization of the nonlinear uncertain system described by two Partial differential equations around an operating point of the real system, then the designed controllers will be applied to the nonlinear system. The simulation results show that the performance of the controller based on CDM combined with PID has short response time, with no overshoot and the best perturbation rejection properties.","PeriodicalId":113395,"journal":{"name":"2017 6th International Conference on Systems and Control (ICSC)","volume":"2007 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128943120","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 : 2017-05-01DOI: 10.1109/ICOSC.2017.7958648
Abderrahmane Gaidi, H. Lehouche, S. Belkacemi, S. Tahraoui, Mourad Loucif, Ouahib Guenounou
A Backstepping adaptive control is proposed in this paper in order to raise the extraction of power in variable speed wind turbine in region two. This wind turbine is modeled by two masses drive-train with generator torque control. By using the model obtained, an algorithm of adaptive Backstepping has been designed to achieve the global asymptotic generator with speed tracking and to estimate the unknown parameter of viscous friction coefficient. A numerical simulation studies are presented to verify the efficiency of this control approach, if we add disturbances to take advantage of this control.
{"title":"Adaptive Backstepping control of wind turbine two mass model","authors":"Abderrahmane Gaidi, H. Lehouche, S. Belkacemi, S. Tahraoui, Mourad Loucif, Ouahib Guenounou","doi":"10.1109/ICOSC.2017.7958648","DOIUrl":"https://doi.org/10.1109/ICOSC.2017.7958648","url":null,"abstract":"A Backstepping adaptive control is proposed in this paper in order to raise the extraction of power in variable speed wind turbine in region two. This wind turbine is modeled by two masses drive-train with generator torque control. By using the model obtained, an algorithm of adaptive Backstepping has been designed to achieve the global asymptotic generator with speed tracking and to estimate the unknown parameter of viscous friction coefficient. A numerical simulation studies are presented to verify the efficiency of this control approach, if we add disturbances to take advantage of this control.","PeriodicalId":113395,"journal":{"name":"2017 6th International Conference on Systems and Control (ICSC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129511677","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 : 2017-05-01DOI: 10.1109/ICOSC.2017.7958706
Y. Massaoudi, D. Elleuch, D. Mehdi, J. Gaubert, T. Damak
The real implementation of DC-DC boost converters controllers is slightly difficult due to their non minimum phase behavior and the non zero output voltage error. Integral Sliding Mode Controllers (ISMC)s have proved to be able to deal with this kind of converters and to eliminate the chattering phenomenon. In order to cancel the output voltage error, we apply in this paper, an ISMC to a detailed modelling of boost converter (by considering the associated parasites). Numerical and experimental comparative studies with the ideal case and the classical SMC verify the effectiveness and the robustness of this controller.
{"title":"Improved dynamic response of a non ideal DC-DC boost converter using an Integral Sliding Mode Controller","authors":"Y. Massaoudi, D. Elleuch, D. Mehdi, J. Gaubert, T. Damak","doi":"10.1109/ICOSC.2017.7958706","DOIUrl":"https://doi.org/10.1109/ICOSC.2017.7958706","url":null,"abstract":"The real implementation of DC-DC boost converters controllers is slightly difficult due to their non minimum phase behavior and the non zero output voltage error. Integral Sliding Mode Controllers (ISMC)s have proved to be able to deal with this kind of converters and to eliminate the chattering phenomenon. In order to cancel the output voltage error, we apply in this paper, an ISMC to a detailed modelling of boost converter (by considering the associated parasites). Numerical and experimental comparative studies with the ideal case and the classical SMC verify the effectiveness and the robustness of this controller.","PeriodicalId":113395,"journal":{"name":"2017 6th International Conference on Systems and Control (ICSC)","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121043897","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 : 2017-05-01DOI: 10.1109/ICOSC.2017.7958695
Amor Ounissi, K. Yakoub, A. Kaddouri, R. Abdessemed
In this paper, an adaptive tracking controller for a piezo-actuated stage is designed considering the LUGRE model. The adaptation algorithm of the parameterized hysteretic function is used to achieve a displacement-tracking objective under the mechanical parameters uncertainties. The Lyapunov theory is used to derive an adaptive law for the system stability. The effectiveness of the proposed controller is validated considering real-time simulation. The validation results of the proposed controller presents good performances and robustness under an external load-disturbance and parameter uncertainties.
{"title":"Robust adaptive displacement tracking control of a piezo-actuated stage","authors":"Amor Ounissi, K. Yakoub, A. Kaddouri, R. Abdessemed","doi":"10.1109/ICOSC.2017.7958695","DOIUrl":"https://doi.org/10.1109/ICOSC.2017.7958695","url":null,"abstract":"In this paper, an adaptive tracking controller for a piezo-actuated stage is designed considering the LUGRE model. The adaptation algorithm of the parameterized hysteretic function is used to achieve a displacement-tracking objective under the mechanical parameters uncertainties. The Lyapunov theory is used to derive an adaptive law for the system stability. The effectiveness of the proposed controller is validated considering real-time simulation. The validation results of the proposed controller presents good performances and robustness under an external load-disturbance and parameter uncertainties.","PeriodicalId":113395,"journal":{"name":"2017 6th International Conference on Systems and Control (ICSC)","volume":"371 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126965949","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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