{"title":"Modeling and control of a variable speed wind turbine with a permanent magnet synchronous generator","authors":"M. Hannachi, Mouna Benhamed","doi":"10.1109/GECS.2017.8066251","DOIUrl":"https://doi.org/10.1109/GECS.2017.8066251","url":null,"abstract":"This paper deals with the study of a simulation chain component of a wind turbine and a permanent magnet synchronous generator. The first part is reserved for the modeling of the turbine of which these equations are presented granted by these results of the simulation. The model of the machine and its control strategy will be developed in the second part. The last part contains the results of simulation.","PeriodicalId":214657,"journal":{"name":"2017 International Conference on Green Energy Conversion Systems (GECS)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125184244","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}
{"title":"Effect of III-Nitride polarization on photo-current in N-polar GaN/InGaN p-n","authors":"R. Belghouthi, M. H. Gazzah, H. Mejri","doi":"10.1109/GECS.2017.8066125","DOIUrl":"https://doi.org/10.1109/GECS.2017.8066125","url":null,"abstract":"This paper studies the impact of III-Nitride polarization on p-GaN/n-InGaN devices grown with N-polar orientations in photovoltaic properties. A new model taking account of the spontaneous and piezoelectric polarizations in the photocurrent density is developed. The self-consistent model as well is used to determine the energy band conduction. Using these models, we have computed a set of photovoltaic parameters allowing the evaluation of photovoltaic performance. Calculations were made as a function of indium composition and the host lattice temperature. As far as the effect of polarization is concerned, this discovery allows the manufacturing of high efficiency solar cells based on nitrides.","PeriodicalId":214657,"journal":{"name":"2017 International Conference on Green Energy Conversion Systems (GECS)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128175687","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}
{"title":"Simulation and analysis of variable step size P&O MPPT algorithm for photovoltaic power control","authors":"K. Saidi, M. Maamoun, M. Bounekhla","doi":"10.1109/GECS.2017.8066265","DOIUrl":"https://doi.org/10.1109/GECS.2017.8066265","url":null,"abstract":"The Maximum Power point Tracking Controller (MPPT) is an essential part of the photovoltaic (PV) system, it is used to extract the maximum power from the photovoltaic solar module and transfer that power to the load. Several MPPT techniques have been proposed in the literature. One of the most commonly used techniques is the perturb and observe algorithm (P&O), due to its low cost and simple implementation, but it suffers from the slow tracking speed for small step of perturbation and oscillations around the maximum power point (MPP) when it is subjected to a large step. In this article, the P&O algorithm with a variable step size (VS_P&O) is simulated by the PSIM software, analyzed and compared with the fixed step size P&O technique (FS_P&O). These two techniques are also simulated with and without proportional integrator corrector (PI corrector). The results show the good tracking, the high efficiency and precision of the VS_P&O technique using the PI corrector.","PeriodicalId":214657,"journal":{"name":"2017 International Conference on Green Energy Conversion Systems (GECS)","volume":"8 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132105056","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}
Taieb Elbellili, M. K. Azizi, L. Latrach, H. Trabelsi, A. Gharsallah, H. Baudrand
{"title":"Analysis of planar microwave structures using transmission line-periodic lumped circuit by an iterative method WCIP","authors":"Taieb Elbellili, M. K. Azizi, L. Latrach, H. Trabelsi, A. Gharsallah, H. Baudrand","doi":"10.1109/GECS.2017.8066132","DOIUrl":"https://doi.org/10.1109/GECS.2017.8066132","url":null,"abstract":"The theory of a novel approach of the WCIP method to analyze periodic lumped circuits has been presented. Transmission lines in their planar form (microstrip technology) can be modelled by an equivalent periodic lumped circuit that permits a fast analysis instead of the use of many electromagnetic full wave simulators which require a great running time and great memory size. The validation of the proposed approach was made by comparing the results of simulation with ADS simulator of a bandpass filter designed in its planar form and equivalent periodic lumped circuit.","PeriodicalId":214657,"journal":{"name":"2017 International Conference on Green Energy Conversion Systems (GECS)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125633323","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}
{"title":"Design of once-through multistage flash process under the Generalized Disjunctive Programming framework","authors":"Hend Ben Ali, R. Ruiz-Femenia, Ammar ben Brahim","doi":"10.1109/GECS.2017.8066244","DOIUrl":"https://doi.org/10.1109/GECS.2017.8066244","url":null,"abstract":"The aim of this paper is to present an optimization model for once-through multistage flash process. Detailed steady state model for MSF-OT was developed and provided a Generalized Disjunctive Programming (GDP) nonlinear model. The proposed mathematical formulation have been reformulated as a mixed-integer nonlinear programming (MINLP) problem and solved using GAMS software. The objective function of this work is based on minimizing the total annualized cost (TAC) of MSF-OT process with the key feature of determining the optimal number of stages. Primary results show the capabilities of our approach providing simultaneously the optimal values for the continuous and discrete variables, and offering to the decision-maker the best design depending on the purchased cost of the equipments.","PeriodicalId":214657,"journal":{"name":"2017 International Conference on Green Energy Conversion Systems (GECS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129260614","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}
{"title":"Influence of the tube diameter on instability in the bubble pump","authors":"J. Rabeb, Benhmidene Ali, B. Chaouachi","doi":"10.1109/GECS.2017.8066158","DOIUrl":"https://doi.org/10.1109/GECS.2017.8066158","url":null,"abstract":"Operation conditions have a most importance to define the efficiency of several machines. In this area mathematical model can be able to predict the optimal operating condition in several studies. In diffusion absorption machines, where the bubble pump is its motive party, tube diameter, heat flux supplied, submersion ratio and working fluid was the mainly operating conditions influencing its efficiency. In the order to study the influence of tube diameter on the flow stability in the bubble pumps, drift flow model have been used to simulate ammonia water two-phase flow in the transitional conditions. It was found that, the liquid and vapour velocities oscillate for a time about 5s and then increase, mass flow rate has the same behaviour too. Pressure drop is more influenced by the tube diameter changing. However void fraction is no influenced by tube diameter choice.","PeriodicalId":214657,"journal":{"name":"2017 International Conference on Green Energy Conversion Systems (GECS)","volume":"406 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114936296","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}
H. Mestiri, Fatma Kahri, B. Bouallegue, Mohsen Machhout
{"title":"A CPA attack against cryptographic hardware implementation on SASEBO-GII","authors":"H. Mestiri, Fatma Kahri, B. Bouallegue, Mohsen Machhout","doi":"10.1109/GECS.2017.8066139","DOIUrl":"https://doi.org/10.1109/GECS.2017.8066139","url":null,"abstract":"Cryptographic circuits are used in electronic devices to protect the confidential data. Those circuits store the encryption key to use in the cryptographic algorithms as the Advanced Encryption Standard algorithm (AES). The Correlation Power Analysis attack (CPA) is powerful cryptanalysis techniques that based on exploiting a linear relation between the real and predicted cryptographic circuits' power consumption. In this paper, we explain the CPA attack process against AES implemented on SASEBO-GII FPGA platform. The experimental results demonstrate that the CPA attack based on Hamming Weight power consumption model cannot extract the correct AES keys. However, the CPA based on Hamming Distance power consumption model can extract successfully all the encryption key bytes. In addition, the CPA attacks results show that using Hamming Distance, 100% of encryption key appears at about 4300 power traces.","PeriodicalId":214657,"journal":{"name":"2017 International Conference on Green Energy Conversion Systems (GECS)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115197600","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}
{"title":"Distributed energy management solution to fuel cell hybrid electric vehicle control","authors":"Soukaina Boudoudouh, M. Maaroufi","doi":"10.1109/GECS.2017.8066122","DOIUrl":"https://doi.org/10.1109/GECS.2017.8066122","url":null,"abstract":"Hybrid electric vehicle is generally operating several generators with different capacities and properties. This paper proposes a hybrid tramway vehicle. It consists on hybridizing the tramway substation by a hybrid energetic system based on Fuel cell, electrolyser and battery. The hybrid tramway vehicle control should deal with the energy flows coming from each element. This paper proposes distributed energy management which is suitable to manage the simultaneous operation of the different elements by respecting each device capabilities. The results show the capacity of this architecture in reducing the subscribed power and removing the drop voltage and the voltage increase occurring due to the acceleration and deceleration phases respectively.","PeriodicalId":214657,"journal":{"name":"2017 International Conference on Green Energy Conversion Systems (GECS)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115490485","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}
{"title":"Performance enhancement of ZnTeO solar cell by optimizing physical and geometrical parameters","authors":"B. Lakehal, Z. Dibi, N. Lakhdar","doi":"10.1109/GECS.2017.8066276","DOIUrl":"https://doi.org/10.1109/GECS.2017.8066276","url":null,"abstract":"In this paper, a physics-based model for various I-V characteristics and efficiency of intermediate band solar cell (IBSC) are developed. The model includes important parameters effects like absorption coefficient constants and energy level. Therefore, an approach based on Genetic Algorithms for increasing the photovoltaic conversion of the IBSC-based design is proposed in order to study and improve electrical behavior of the device. Our GA-based approach exhibits a significant improvement compared to analytical results found in literature providing guidance for the device design for high-cell performances.","PeriodicalId":214657,"journal":{"name":"2017 International Conference on Green Energy Conversion Systems (GECS)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116084407","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}
{"title":"Artificial neural network-based fault detection and classification for photovoltaic system","authors":"S. Laamami, Mouna Benhamed, L. Sbita","doi":"10.1109/GECS.2017.8066211","DOIUrl":"https://doi.org/10.1109/GECS.2017.8066211","url":null,"abstract":"This paper handles with the artificial neural network-based fault detection and classification method for a photovoltaic (PV) system. In fact, the diagnosis of the PV plants is extremely required in order to maintain the optimum performance. Therefore, in this paper, we used the artificial neural network for the fault classification. The studied system composed of a PV array with the implementation of Perturb and Observe (P&O) maximum power point tracking (MPPT) using boost converter. The simulation has been accomplished in MATLAB/SIMULINK software. Five different faults have been implemented in the PV system. We used the neural network fitting tool to build and train the network and evaluate its performance using the mean square error (MSE) and regression analysis. The proposed technique has proved effective in terms of results.","PeriodicalId":214657,"journal":{"name":"2017 International Conference on Green Energy Conversion Systems (GECS)","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122510108","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}