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2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)最新文献

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Realization of a photovoltaic chain with a chopper controlled by a microcontroller PIC 18F4550 由单片机pic18f4550控制的斩波器光伏链的实现
2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM) Pub Date : 2014-11-01 DOI: 10.1109/CISTEM.2014.7077054
H. Boucherit, S. Sahnine, A. Boukhelifa, K. Benmansour
{"title":"Realization of a photovoltaic chain with a chopper controlled by a microcontroller PIC 18F4550","authors":"H. Boucherit, S. Sahnine, A. Boukhelifa, K. Benmansour","doi":"10.1109/CISTEM.2014.7077054","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7077054","url":null,"abstract":"The objective of this work is the study and the realization of a photovoltaic conversion chain which consists mainly of a solar panel, a power converter controlled by a signal pulse width modulation (PWM), generated by a microcontroller and an electric load. For develop this work, we carried a chopper Buck we achieve a chopper Buck and different associated cards: cards of measurement, protection and control based on the PIC 18F4550. This one generates a PWM control signal to 10 KHz frequency, with variable duty cycle. A system practical validation is performed, which experimental results showed a good functioning of the achieved system with a satisfactory yield.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121062957","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}
引用次数: 0
Solar radiation forecasting using artificial neural network for local power reserve 局部电力储备的人工神经网络太阳辐射预报
2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM) Pub Date : 2014-11-01 DOI: 10.1109/CISTEM.2014.7076959
Xingyu Yan, D. Abbes, B. Francois
{"title":"Solar radiation forecasting using artificial neural network for local power reserve","authors":"Xingyu Yan, D. Abbes, B. Francois","doi":"10.1109/CISTEM.2014.7076959","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7076959","url":null,"abstract":"Renewable energy sources have a variable nature and are greatly depending on weather conditions. The load is also uncertain. Hence, it is necessary to use power reserve equipment to compensate unforeseen imbalances between production and load. However, this power reserve must be ideally minimized in order to reduce the system cost with a satisfying security level. The quantification of power reserve could be calculated through analysis of forecasting uncertainty errors of both generation and load. Therefore, in this paper, a back propagation artificial neural network approaches is derived to forecast solar radiations. Predictions have been analyzed according to weather classification. Some error indexes have been introduced to evaluate forecasting models performances and calculate the prediction accuracy. Forecasting results can be used for decision making of power reserve for renewable energy sources system with some probability or possibility methods.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"60 12","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113970130","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}
引用次数: 25
Direct torque and reactive power control of Grid Connected Doubly Fed Induction Generator for the wind energy conversion 风电并网双馈感应发电机的直接转矩和无功控制
2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM) Pub Date : 2014-11-01 DOI: 10.1109/CISTEM.2014.7077053
S. Tamalouzt, T. Rekioua, R. Abdessemed
{"title":"Direct torque and reactive power control of Grid Connected Doubly Fed Induction Generator for the wind energy conversion","authors":"S. Tamalouzt, T. Rekioua, R. Abdessemed","doi":"10.1109/CISTEM.2014.7077053","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7077053","url":null,"abstract":"The purpose of this paper is to show the performance of the direct torque and reactive power control technique (DTRPC), combined with fuzzy logic algorithms, applied to a doubly fed induction generator (DFIG) driven by a wind turbine, taking into account the variation of wind allowing the three modes (Sub, Super and synchronous) operation, with a particular focus on synchronous mode, well as the possibility of management and the active-reactive power control. Especially, operation as a local reactive power compensator. This analysis is treated by taking account some constraints that reflect the real operation of a wind driven, such as the pursuit of the references and the influence of the system physical state. The captured wind energy is optimized to extract the maximum power using the MPPT algorithm. The studied system control is tested and validated through numerical simulation. The obtained results show the effectiveness of the control strategy leading to best performances.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124144543","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}
引用次数: 17
Tunisian city name recognition based on dynamic Bayesian networks: Factorial hidden Markov model case 基于动态贝叶斯网络的突尼斯城市名称识别:阶乘隐马尔可夫模型案例
2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM) Pub Date : 2014-11-01 DOI: 10.1109/CISTEM.2014.7076751
K. Jayech, M. Mahjoub, N. B. Ben Amara
{"title":"Tunisian city name recognition based on dynamic Bayesian networks: Factorial hidden Markov model case","authors":"K. Jayech, M. Mahjoub, N. B. Ben Amara","doi":"10.1109/CISTEM.2014.7076751","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7076751","url":null,"abstract":"In this paper, we present a new approach for the recognition of Tunisian city names. This approach use two sliding windows with a uniform size in two directions (vertical and horizontal) in order to extract the features according to the lines and columns. Then, the two sequences of obtained information have been modeled by a factorial hidden Markov model. This model is a variant of the dynamic Bayesian network, in which we represent the interaction and the dependence between the two primitive sequences using an intermediate hidden layer. The approach has been tested with the benchmark IFN/ENIT database and the recorded results have been encouraging.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"129 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126273539","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}
引用次数: 0
Phase space singularities in speed field oriented control of PMSM 永磁同步电机速度场定向控制中的相空间奇异性
2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM) Pub Date : 2014-11-01 DOI: 10.1109/CISTEM.2014.7077063
Wahid Souhail, H. Khammari, M. F. Mimouni
{"title":"Phase space singularities in speed field oriented control of PMSM","authors":"Wahid Souhail, H. Khammari, M. F. Mimouni","doi":"10.1109/CISTEM.2014.7077063","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7077063","url":null,"abstract":"The existence and the stability of phase space singularities namely equilibrium points and limit cycles are discussed. The coexistence of many stable behaviors for a given set of system parameters and for different initial conditions is presented putting evidence into the most exciting phenomena in nonlinear dynamics, referred to as multistability. A classical method of speed control of synchronous motor is applied in order to obtain numerical coordinates of equilibrium points. Their stability is analyzed by mean of Eigenvalues derived from Jacobian matrix of the system. The sets of initial conditions leading to such or such equilibrium point known as attraction basins are traced for different sets of system parameters whether that was close or far from critical points or bifurcation.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"220 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132021159","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}
引用次数: 1
Study and test of a new superconducting inductor structure for a synchronous machine 一种新型同步电机超导电感结构的研究与试验
2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM) Pub Date : 2014-11-01 DOI: 10.1109/CISTEM.2014.7076970
Rada Alhasan, T. Lubin, J. Lévêque
{"title":"Study and test of a new superconducting inductor structure for a synchronous machine","authors":"Rada Alhasan, T. Lubin, J. Lévêque","doi":"10.1109/CISTEM.2014.7076970","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7076970","url":null,"abstract":"In this paper, we present a new kind of superconducting inductor for the synchronous machine. This inductor is composed of a two superconducting coils having the same axis and fed by a currents with the same direction. A superconducting bulk is used in order to achieve a variation of the flux density in the air-gap. The superconducting bulk is surrounded by a ferromagnetic material in order to improve the radial component of the flux density in the air-gap. With the proposed superconducting inductor, we obtain a two-poles electrical machine with an important value of a magnetic field in the air-gap.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132233066","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}
引用次数: 2
Integration of Large-Scale Photovoltaic system in the distribution grid under partially shading 部分遮阳条件下大型光伏系统在配电网中的集成
2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM) Pub Date : 2014-11-01 DOI: 10.1109/CISTEM.2014.7076930
Manel Khaterchi, J. Belhadj, M. Elleuch
{"title":"Integration of Large-Scale Photovoltaic system in the distribution grid under partially shading","authors":"Manel Khaterchi, J. Belhadj, M. Elleuch","doi":"10.1109/CISTEM.2014.7076930","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7076930","url":null,"abstract":"Solar energy can play an important role when used in Large Scale Photovoltaic (LS-PV) system. The major drawback of the PV system is the efficiency of the energy conversion and the partially shading. This paper presents a study on the impact of the partially shading on the integration of LS-PV system of 1 MW in the grid, implemented in a multi-string topology.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130068453","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}
引用次数: 2
Parameterization of speech signals for robust voice recognition 鲁棒语音识别中语音信号的参数化
2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM) Pub Date : 2014-11-01 DOI: 10.1109/CISTEM.2014.7076915
Youssef Zouhir, K. Ouni
{"title":"Parameterization of speech signals for robust voice recognition","authors":"Youssef Zouhir, K. Ouni","doi":"10.1109/CISTEM.2014.7076915","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7076915","url":null,"abstract":"In this paper, we propose a speech parameterization technique based on a compressive Gammachirp filterbank. This filterbank represents a reliable model of the cochlear auditory filter and provides a good approximation of their spectral and selective behaviour. The recognition performance of our technique is tested on isolated-words extracted from the TIMIT database. The adopted speech recognition system is the HTK.3.4.1 platform based on Hidden Markov Models with Gaussian-Mixture densities. The evaluation results showed that the proposed technique gives better recognition rate compared to conventional techniques: PLP (Perceptual Linear Prediction) and LPCC (Linear Prediction Cepstral Coefficient).","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131731320","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}
引用次数: 0
Grid support capabilities of direct drive wind turbines during faults for uninterrupted operation mode 直驱风力发电机组故障时电网对不间断运行模式的支持能力
2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM) Pub Date : 2014-11-01 DOI: 10.1109/CISTEM.2014.7077045
Mehdi Allagui, O. Hasnaoui, J. Belhadj
{"title":"Grid support capabilities of direct drive wind turbines during faults for uninterrupted operation mode","authors":"Mehdi Allagui, O. Hasnaoui, J. Belhadj","doi":"10.1109/CISTEM.2014.7077045","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7077045","url":null,"abstract":"This paper presents the development of a control strategy used to control high power direct-drive wind turbines. A new supervision scheme is proposed for optimal integration of wind energy systems to the grid. For the generator-side converter, control algorithm is developed based on the Field Oriented Control (FOC). Concerning the grid-side converter, Vector Current Control (VCC) was proposed. Control strategy performances are evaluated in terms of accordance with Grid Connection Requirements (GCR) including, low voltage ride through capabilities (LVRT), power limitation and reactive power control.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130772197","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}
引用次数: 5
An intelligent approach based on fuzzy logic for improving and optimizing the performance of a photovoltaic system 基于模糊逻辑的光伏系统性能改进与优化的智能方法
2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM) Pub Date : 2014-11-01 DOI: 10.1109/CISTEM.2014.7077042
L. Zaghba, A. Borni, A. Bouchakeur, N. Terki
{"title":"An intelligent approach based on fuzzy logic for improving and optimizing the performance of a photovoltaic system","authors":"L. Zaghba, A. Borni, A. Bouchakeur, N. Terki","doi":"10.1109/CISTEM.2014.7077042","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7077042","url":null,"abstract":"This work presents an intelligent approach to the improvement and optimization of control performance of a PV system, the method further maximum power point tracking (MPPT) based on fuzzy logic. Our system consists of a photovoltaic panel (PV), a DC-DC buck-boost converter, considered a matching stage between the PV and the load. The strategy for the synthesis of control laws is based on modeling the behavior of the PV system, which allows us to integrate different control techniques to ensure a smooth continuation in the presence of modeling errors and external disturbances. Modeling and simulation system (photovoltaic panel, Buck-Boost DC-DC converter, the MPPT algorithm based on fuzzy logic and load) is achieved through the Matlab / Simulink software.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130983237","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}
引用次数: 2
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