Pub Date : 2014-11-01DOI: 10.1109/CISTEM.2014.7077014
S. Messalti, A. Gherbi, S. Belkhiat
This paper presents comparative study for power system transient stability improvement using Static Var Compensator (SVC) and Thyristor Control Breaking Resistor (TCBR). To show the effectiveness of the dynamic oscillation, relative rotor angles criterion is used for power system transient stability assessment. The proposed method is tested on the WSCC3 nine-bus system in the case of three-phase short circuit fault in one transmission line. Simulation results and comparative study comparison are presented in this paper.
{"title":"Assessment of power system transient stability using shunt FACTS devices: SVC and TCBR","authors":"S. Messalti, A. Gherbi, S. Belkhiat","doi":"10.1109/CISTEM.2014.7077014","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7077014","url":null,"abstract":"This paper presents comparative study for power system transient stability improvement using Static Var Compensator (SVC) and Thyristor Control Breaking Resistor (TCBR). To show the effectiveness of the dynamic oscillation, relative rotor angles criterion is used for power system transient stability assessment. The proposed method is tested on the WSCC3 nine-bus system in the case of three-phase short circuit fault in one transmission line. Simulation results and comparative study comparison are presented in this paper.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"149 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":"123266859","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 : 2014-11-01DOI: 10.1109/CISTEM.2014.7077036
Elmahdi Elgharbaoui, A. Essadki, T. Nasser
In the era of sustainable development, photovoltaic (PV) technology has shown significant potential as a renewable energy source. Photovoltaic generators (GPV) have a non-linear current-voltage characteristic, with a maximum power point (MPP) characterized by an optimal voltage, and depends on environmental factors such as temperature and irradiation. To extract each time the maximum power available at the terminals of the GPV and transfer it to the load, an adaptation stage is used, consisting of a Boost chopper controlled by a maximum power point tracking technique (MPPT) through a stage of pulse width modulation (PWM). Our choice has focused on two techniques which are: the Incremental Conductance Method (InCond) and that of control using the fuzzy logic. The implementation and simulation of the system (photovoltaic generator, chopper Boost, PWM and MPPT techniques) are then performed in the Matlab/Simulink environment.
{"title":"MPPT commands for a photovoltaic generator using the Incremental Conductance Method and the fuzzy logic command","authors":"Elmahdi Elgharbaoui, A. Essadki, T. Nasser","doi":"10.1109/CISTEM.2014.7077036","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7077036","url":null,"abstract":"In the era of sustainable development, photovoltaic (PV) technology has shown significant potential as a renewable energy source. Photovoltaic generators (GPV) have a non-linear current-voltage characteristic, with a maximum power point (MPP) characterized by an optimal voltage, and depends on environmental factors such as temperature and irradiation. To extract each time the maximum power available at the terminals of the GPV and transfer it to the load, an adaptation stage is used, consisting of a Boost chopper controlled by a maximum power point tracking technique (MPPT) through a stage of pulse width modulation (PWM). Our choice has focused on two techniques which are: the Incremental Conductance Method (InCond) and that of control using the fuzzy logic. The implementation and simulation of the system (photovoltaic generator, chopper Boost, PWM and MPPT techniques) are then performed in the Matlab/Simulink environment.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"24 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":"125426662","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 : 2014-11-01DOI: 10.1109/CISTEM.2014.7077049
N. Hamrouni, Amel Ghobber, A. Rabhi, A. El Hajjaji
In this work we are interested in modeling and control of a wind system formed by a turbine, a driving shaft and a double fed induction machine. We are used the multi model method to overcome the non linearity of the system. Hence two techniques of command were developed. They are the feedback command state and the standard command using the quadratic functions of Lyapunov and the LMI approach. The simulation shows the control performances and dynamic behavior of the wind system. The standard command permits the stability of the system and attenuation of the external disturbances caused by the variation of the wind speed.
{"title":"Modeling and robust control of a wind Generator","authors":"N. Hamrouni, Amel Ghobber, A. Rabhi, A. El Hajjaji","doi":"10.1109/CISTEM.2014.7077049","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7077049","url":null,"abstract":"In this work we are interested in modeling and control of a wind system formed by a turbine, a driving shaft and a double fed induction machine. We are used the multi model method to overcome the non linearity of the system. Hence two techniques of command were developed. They are the feedback command state and the standard command using the quadratic functions of Lyapunov and the LMI approach. The simulation shows the control performances and dynamic behavior of the wind system. The standard command permits the stability of the system and attenuation of the external disturbances caused by the variation of the wind speed.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"212 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":"121228403","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 : 2014-11-01DOI: 10.1109/CISTEM.2014.7076966
Besseghier Mokhtar, A. B. Djebbar, D. Iyad, Taleb-Ahmed Abdelmalik
The greatest threat to the OFDM system is the loss of orthogonality between subcarriers due to the carrier frequency offset (CFO) which results in significant performance degradation. In addition to this last problem was the effect of propagation over multipath fading channel. Hence, both the channel and the CFO need to be estimated and corrected at the receiver for subsequent symbol detection. A new joint semi-blind CFO and channel estimation methods for OFDM systems based on maximum-likelihood (ML) is investigated in this paper. The proposed algorithm is based on virtual subcarriers (VSCs) and on a new design of pilot patterns in OFDM blocks. The simulation results are given to verify the validity of the proposed methods.
{"title":"Joint semi-blind estimation of CFO and channel for OFDM system","authors":"Besseghier Mokhtar, A. B. Djebbar, D. Iyad, Taleb-Ahmed Abdelmalik","doi":"10.1109/CISTEM.2014.7076966","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7076966","url":null,"abstract":"The greatest threat to the OFDM system is the loss of orthogonality between subcarriers due to the carrier frequency offset (CFO) which results in significant performance degradation. In addition to this last problem was the effect of propagation over multipath fading channel. Hence, both the channel and the CFO need to be estimated and corrected at the receiver for subsequent symbol detection. A new joint semi-blind CFO and channel estimation methods for OFDM systems based on maximum-likelihood (ML) is investigated in this paper. The proposed algorithm is based on virtual subcarriers (VSCs) and on a new design of pilot patterns in OFDM blocks. The simulation results are given to verify the validity of the proposed methods.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"33 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":"124040432","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 : 2014-11-01DOI: 10.1109/CISTEM.2014.7076974
A. K. Chaou, A. Mekhaldi, B. Moula, M. Teguar
In order to ensure the continuity and the quality of electrical energy distribution, the diagnostic of polluted insulators is of utmost importance. For this purpose, a new performance monitoring methodology is proposed in this paper. Once acquisition of the applied voltage and the leakage current signals is carried out on a plan insulator model under uniform and non-uniform pollutions, the continuous (CWT) and discrete (DWT) wavelet transforms are performed. In case of a uniform pollution, the CWT with its time-scale analysis allows to characterize the state of the insulator surface by detecting the apparition of electrical discharges from the applied voltage waveform. While for a non-uniform pollution configuration, the DWT through its multi-resolution analysis allows us to predict the occurrence of the partial arcs phenomenon on the insulator surface based on the leakage current waveform. Through this work, the effectiveness of the wavelet technique has been highlighted as a new tool for the diagnostic and monitoring of polluted insulators performance.
{"title":"The use of wavelets for the monitoring and diagnostic of surface state of HV polluted insulators","authors":"A. K. Chaou, A. Mekhaldi, B. Moula, M. Teguar","doi":"10.1109/CISTEM.2014.7076974","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7076974","url":null,"abstract":"In order to ensure the continuity and the quality of electrical energy distribution, the diagnostic of polluted insulators is of utmost importance. For this purpose, a new performance monitoring methodology is proposed in this paper. Once acquisition of the applied voltage and the leakage current signals is carried out on a plan insulator model under uniform and non-uniform pollutions, the continuous (CWT) and discrete (DWT) wavelet transforms are performed. In case of a uniform pollution, the CWT with its time-scale analysis allows to characterize the state of the insulator surface by detecting the apparition of electrical discharges from the applied voltage waveform. While for a non-uniform pollution configuration, the DWT through its multi-resolution analysis allows us to predict the occurrence of the partial arcs phenomenon on the insulator surface based on the leakage current waveform. Through this work, the effectiveness of the wavelet technique has been highlighted as a new tool for the diagnostic and monitoring of polluted insulators performance.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"36 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":"126308695","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 : 2014-11-01DOI: 10.1109/CISTEM.2014.7077029
M. Turki, J. Belhadj, X. Roboam
This paper studies a water and energy management strategy dedicated to an autonomous water desalination system fed by a hybrid (Photovoltaic (PV) and Wind) power generator without battery storage. RO technology is one of the most powerful processes used for desalination to provide fresh water. Accordingly, renewable energy can be used especially by means of hybrid (PV-wind) system. Taking into consideration the multidisciplinary and strongly coupled device from a systemic point of view, the system being considered as a whole. Inside this framework, the water/energy management of the global process has to be optimized in order to produce fresh water while considering the different system constraints with the given intermittent power.
{"title":"Water/Energy management approaches of an autonomous water desalination unit fed by a hybrid (Photovoltaic-Wind) system","authors":"M. Turki, J. Belhadj, X. Roboam","doi":"10.1109/CISTEM.2014.7077029","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7077029","url":null,"abstract":"This paper studies a water and energy management strategy dedicated to an autonomous water desalination system fed by a hybrid (Photovoltaic (PV) and Wind) power generator without battery storage. RO technology is one of the most powerful processes used for desalination to provide fresh water. Accordingly, renewable energy can be used especially by means of hybrid (PV-wind) system. Taking into consideration the multidisciplinary and strongly coupled device from a systemic point of view, the system being considered as a whole. Inside this framework, the water/energy management of the global process has to be optimized in order to produce fresh water while considering the different system constraints with the given intermittent power.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"74 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":"127683801","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 : 2014-11-01DOI: 10.1109/CISTEM.2014.7077058
W. O. Amor, M. Ghariani
This paper present the complete modeling and Simulation of wind turbine driven doubly-fed induction generator which feeds as power to the utility grid. Our systems is based on DFIG. This work deals with the modeling and control of a wind turbine variable speed induction generator based to high power, followed by two converters by means of a PI controller to ensure the stability of the system irrespective to the fluctuation of the wind. The different simulation results of all the conversion chains realized under the MATLAB/SIMULINK environment, allowed the evaluation of the suggested system's performance. This work deals with the modeling and control of a wind turbine variable speed induction generator based on dual fuel (GADA) to high power, followed by a rectifier.
{"title":"Modelling and Simulation for variable speed wind energy conversion systems based on doubly-fed induction generator","authors":"W. O. Amor, M. Ghariani","doi":"10.1109/CISTEM.2014.7077058","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7077058","url":null,"abstract":"This paper present the complete modeling and Simulation of wind turbine driven doubly-fed induction generator which feeds as power to the utility grid. Our systems is based on DFIG. This work deals with the modeling and control of a wind turbine variable speed induction generator based to high power, followed by two converters by means of a PI controller to ensure the stability of the system irrespective to the fluctuation of the wind. The different simulation results of all the conversion chains realized under the MATLAB/SIMULINK environment, allowed the evaluation of the suggested system's performance. This work deals with the modeling and control of a wind turbine variable speed induction generator based on dual fuel (GADA) to high power, followed by a rectifier.","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":"129221993","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 : 2014-11-01DOI: 10.1109/CISTEM.2014.7077060
M. Hachicha, M. Ghariani, R. Neji
Vector controlled drives involve a prior knowledge of the spatial orientation as well as the magnitude of the magnetic flux in the IM rotor or stator. In this context estimators or observers can be used, depending on the required robustness and accuracy as well as the sensitivity next to parameters variation. Thus, the performance of an IM drive remains dependent on the rapidity and the accuracy of the submitted parameters values. In this paper an IM finite element model based observer “FEMO” is developed. The IM finite element model “IMFEM” was designed using a two dimensional Finite Element Method “FEM” in order to identify the stator inductance, the rotor time constant and the magnetic dispersion coefficient. Field trials was undertaken to validate the IMFEM and performance of the FEMO is evaluated.
{"title":"Induction machine finite element model for field-oriented control in Electric vehicle power train","authors":"M. Hachicha, M. Ghariani, R. Neji","doi":"10.1109/CISTEM.2014.7077060","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7077060","url":null,"abstract":"Vector controlled drives involve a prior knowledge of the spatial orientation as well as the magnitude of the magnetic flux in the IM rotor or stator. In this context estimators or observers can be used, depending on the required robustness and accuracy as well as the sensitivity next to parameters variation. Thus, the performance of an IM drive remains dependent on the rapidity and the accuracy of the submitted parameters values. In this paper an IM finite element model based observer “FEMO” is developed. The IM finite element model “IMFEM” was designed using a two dimensional Finite Element Method “FEM” in order to identify the stator inductance, the rotor time constant and the magnetic dispersion coefficient. Field trials was undertaken to validate the IMFEM and performance of the FEMO is evaluated.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"103 39","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113945924","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 : 2014-11-01DOI: 10.1109/CISTEM.2014.7076922
J. Ben Salem, M. Lakhoua, L. El Amraoui
In this paper, the general context of our bibliographic research in the field of mechatronic systems modeling is presented. Thus, we first present a brief introduction to mechatronic systems and different areas related to these systems, then a presentation of some methods of analysis and design applied to mechatronic systems. Finally, a presentation of modeling tools and studying systems in order to achieve a systems analysis methodology for mechatronic systems.
{"title":"On the analysis and the design of mechatronic systems","authors":"J. Ben Salem, M. Lakhoua, L. El Amraoui","doi":"10.1109/CISTEM.2014.7076922","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7076922","url":null,"abstract":"In this paper, the general context of our bibliographic research in the field of mechatronic systems modeling is presented. Thus, we first present a brief introduction to mechatronic systems and different areas related to these systems, then a presentation of some methods of analysis and design applied to mechatronic systems. Finally, a presentation of modeling tools and studying systems in order to achieve a systems analysis methodology for mechatronic systems.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"16 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":"127890621","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 : 2014-11-01DOI: 10.1109/CISTEM.2014.7077027
H. Turki, Khadija Ben Kilani, M. Elleuch
The aim of this work is to explore the static conduct of an islanded micorgrid. A technical economic study is performed. Many parameters and aspects such as renewable resources availability, fuel price, microgrid components, and dispatch strategies are examined to see their effect on microgrid operation and cost effectiveness. The study is performed on Desertores Island microgrid example. A comparison is made also with Tunisia using the same system but with Tunisian climate data and fuel price. HOMER (Hybrid Optimization of Multiple Energy Resources) software is very useful to perform such study.
这项工作的目的是探索一个孤岛微电网的静态导电性。进行了技术经济研究。许多参数和方面，如可再生资源的可用性，燃料价格，微电网组件和调度策略进行检查，看看他们对微电网运行和成本效益的影响。该研究以Desertores岛微电网为例进行。我们也用突尼斯的气候数据和燃料价格，用同样的系统与突尼斯进行了比较。HOMER (Hybrid Optimization of Multiple Energy Resources)软件是进行此类研究的有效工具。
{"title":"Static analysis of islanded micro grids: Focus on renewable fraction and cost of energy","authors":"H. Turki, Khadija Ben Kilani, M. Elleuch","doi":"10.1109/CISTEM.2014.7077027","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7077027","url":null,"abstract":"The aim of this work is to explore the static conduct of an islanded micorgrid. A technical economic study is performed. Many parameters and aspects such as renewable resources availability, fuel price, microgrid components, and dispatch strategies are examined to see their effect on microgrid operation and cost effectiveness. The study is performed on Desertores Island microgrid example. A comparison is made also with Tunisia using the same system but with Tunisian climate data and fuel price. HOMER (Hybrid Optimization of Multiple Energy Resources) software is very useful to perform such study.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"105 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":"128600344","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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