Pub Date : 2014-11-01DOI: 10.1109/CISTEM.2014.7077064
H. Mohammed, A. Meroufel
The main objective of this paper is to study of adaptive speed estimator for a double start induction machine using an artificial neural network to estimate the speed with a fuzzy direct control of torque for the converter switches. The estimation algorithm uses the current& voltage stator values combined with an intelligent adaptive mechanism (MRAS) based on an artificial neural network (ANN) to estimate rotor speed, also a simple Proportional-Integrator (PI) used as speed controller. Thus hysteresis comparators used on the classical method of direct control of torque has been replaced by fuzzy blocs. As results we achieved can be summarised as follows: 1-amelioration the responding time of the system 2-Minimization of the torque ripples. 3-Minimization of the current total harmonic distortion.
{"title":"Contribution to the Neural network speed estimator for sensor-less fuzzy direct control of torque application using double stars induction machine","authors":"H. Mohammed, A. Meroufel","doi":"10.1109/CISTEM.2014.7077064","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7077064","url":null,"abstract":"The main objective of this paper is to study of adaptive speed estimator for a double start induction machine using an artificial neural network to estimate the speed with a fuzzy direct control of torque for the converter switches. The estimation algorithm uses the current& voltage stator values combined with an intelligent adaptive mechanism (MRAS) based on an artificial neural network (ANN) to estimate rotor speed, also a simple Proportional-Integrator (PI) used as speed controller. Thus hysteresis comparators used on the classical method of direct control of torque has been replaced by fuzzy blocs. As results we achieved can be summarised as follows: 1-amelioration the responding time of the system 2-Minimization of the torque ripples. 3-Minimization of the current total harmonic distortion.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"31 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":"129733930","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.2014.7077035
Wahib Khiari, A. Ben Rhouma, M. Turki, J. Belhadj
This paper presents the experimental results of an original control strategy for motor-pump implemented on a dSPACE controller board. The Power Field Oriented Control strategy developed in this paper is used to drive a motor-pump fed by intermittent renewable sources. This system is dedicated to autonomous applications for pumping or water desalination for remote areas without access to hydraulic and electric networks. This control strategy allows controlling the DC bus voltage without using batteries in the system. The DC voltage control is achieved through the control of the inverter used for the motor-pump. Experimental results for variable power source are presented and confirm the effectiveness of the proposed control strategy.
{"title":"DSPACE implementation and experimentation of Power Field Oriented Control for motor-pump fed by intermittent renewable sources","authors":"Wahib Khiari, A. Ben Rhouma, M. Turki, J. Belhadj","doi":"10.1109/CISTEM.2014.7077035","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7077035","url":null,"abstract":"This paper presents the experimental results of an original control strategy for motor-pump implemented on a dSPACE controller board. The Power Field Oriented Control strategy developed in this paper is used to drive a motor-pump fed by intermittent renewable sources. This system is dedicated to autonomous applications for pumping or water desalination for remote areas without access to hydraulic and electric networks. This control strategy allows controlling the DC bus voltage without using batteries in the system. The DC voltage control is achieved through the control of the inverter used for the motor-pump. Experimental results for variable power source are presented and confirm the effectiveness of the proposed control strategy.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"45 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":"130617324","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.2014.7076916
Zied Ben Hazem, Youssef Zouhir, K. Ouni
In this paper, we present a study of isolated word speech recognition system. The adopted system is based on the Hidden Markov Model with Gaussian Mixture (HMM-GM). We studied the recognition rate by varying the states number (3, 4, 5, 6 and 7 states) and the number of Gaussians per state (2, 4, 8, 12, 14 and 16 Gaussians) of Hidden Markov Model. We evaluated these recognition rates using two parameterization techniques Mel Frequency Cepstral Coefficients (MFCC) and Perceptual Linear Prediction (PLP). We have introduced the dynamic coefficients and the energy of the signal in order to achieve an improvement in the recognition rate.
{"title":"A study of speech recognition system based on the Hidden Markov Model with Gaussian-Mixture","authors":"Zied Ben Hazem, Youssef Zouhir, K. Ouni","doi":"10.1109/CISTEM.2014.7076916","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7076916","url":null,"abstract":"In this paper, we present a study of isolated word speech recognition system. The adopted system is based on the Hidden Markov Model with Gaussian Mixture (HMM-GM). We studied the recognition rate by varying the states number (3, 4, 5, 6 and 7 states) and the number of Gaussians per state (2, 4, 8, 12, 14 and 16 Gaussians) of Hidden Markov Model. We evaluated these recognition rates using two parameterization techniques Mel Frequency Cepstral Coefficients (MFCC) and Perceptual Linear Prediction (PLP). We have introduced the dynamic coefficients and the energy of the signal in order to achieve an improvement in the recognition rate.","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":"131062963","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.2014.7077007
S. Hlioui, B. Nedjar, L. Vido, Y. Amara, M. Gabsi
This paper presents a 2D and 3D Magnetic Equivalent Circuit (MEC) of the flux focusing permanent magnet synchronous machine. The proposed model is based on reluctance mesh of the structure in order to have a high precision model and to take into account all leakage flux. The saturation effects and rotor motion are taking into account in the proposed model. The extension from 2D to 3D is detailed. The obtained results of 2D and 3D models are compared to finites elements model and validated by experimental measurements.
{"title":"2D–3D Magnetic equivalent circuit of the flux focusing permanent magnets synchronous machine","authors":"S. Hlioui, B. Nedjar, L. Vido, Y. Amara, M. Gabsi","doi":"10.1109/CISTEM.2014.7077007","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7077007","url":null,"abstract":"This paper presents a 2D and 3D Magnetic Equivalent Circuit (MEC) of the flux focusing permanent magnet synchronous machine. The proposed model is based on reluctance mesh of the structure in order to have a high precision model and to take into account all leakage flux. The saturation effects and rotor motion are taking into account in the proposed model. The extension from 2D to 3D is detailed. The obtained results of 2D and 3D models are compared to finites elements model and validated by experimental measurements.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"54 36","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134226123","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.2014.7076914
Maha Bellaaj, K. Ouni
View the development of the Internet in the 90s and direction of the world into an era where digital is playing an increasingly important we found face serious problems of copyright, piracy, rights ... OF where watermarking comes as an effective solution faces to these problems. Watermarking a signal (audio, image, video) means inserting a message (audio, image, beep, text) in an inaudible manner in the original audio signal in order to protect it. In this paper, we present a digital audio watermarking technique operating in the frequency domain. This technique uses the modified discrete cosine transform (MDCT) to switch to the frequency domain and the characteristics of the psychoacoustic model 2 of the MPEG standard in the insertion phase. The bits of the brand are duplicated to increase the capacity of insertion and then inserted into the sample selected by the MPH. To improve reliability in the decoding phase, an error correction code (Hamming) was introduced. The inaudibility of this technique is evaluated by using the PEAQ algorithm and calculating the SNR. The robustness of this technique is shown against different types of attacks.
{"title":"High capacity digital audio watermarking technique in the frequency domain exploiting the properties of a psychoacoustic model","authors":"Maha Bellaaj, K. Ouni","doi":"10.1109/CISTEM.2014.7076914","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7076914","url":null,"abstract":"View the development of the Internet in the 90s and direction of the world into an era where digital is playing an increasingly important we found face serious problems of copyright, piracy, rights ... OF where watermarking comes as an effective solution faces to these problems. Watermarking a signal (audio, image, video) means inserting a message (audio, image, beep, text) in an inaudible manner in the original audio signal in order to protect it. In this paper, we present a digital audio watermarking technique operating in the frequency domain. This technique uses the modified discrete cosine transform (MDCT) to switch to the frequency domain and the characteristics of the psychoacoustic model 2 of the MPEG standard in the insertion phase. The bits of the brand are duplicated to increase the capacity of insertion and then inserted into the sample selected by the MPH. To improve reliability in the decoding phase, an error correction code (Hamming) was introduced. The inaudibility of this technique is evaluated by using the PEAQ algorithm and calculating the SNR. The robustness of this technique is shown against different types of attacks.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"20 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":"134508375","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.2014.7076957
Khalfallah Mariem, Khlifi Mohamed Arbi, B. Mouldi, R. Habib
This paper presents modeling of a simple but efficient photovoltaic water pumping system. The system employs maximum power point tracker (MPPT). Two MPPT algorithms, subsystems and control methods will be modeled and simulated using Matlab Simulink with actual irradiance data. Simulation results will be presented in terms of performance parameters such as total energy produced and total volume of water pumped per day. The induction motor driven pump that is powered by a solar array is controlled by the field oriented control.
{"title":"Modeling and simulation of photovoltaic water pumping system","authors":"Khalfallah Mariem, Khlifi Mohamed Arbi, B. Mouldi, R. Habib","doi":"10.1109/CISTEM.2014.7076957","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7076957","url":null,"abstract":"This paper presents modeling of a simple but efficient photovoltaic water pumping system. The system employs maximum power point tracker (MPPT). Two MPPT algorithms, subsystems and control methods will be modeled and simulated using Matlab Simulink with actual irradiance data. Simulation results will be presented in terms of performance parameters such as total energy produced and total volume of water pumped per day. The induction motor driven pump that is powered by a solar array is controlled by the field oriented control.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"2 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":"132130170","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.2014.7077077
D. Nada, M. B. Salah, M. Bettayeb
Tow different architectures are presented to fuse measurements coming from odometers, compass and accelerometer to locate wheelchair position in 2D Cartesian coordinates, with Extended KALMAN Filter (EKF). The performance of these architectures is checked with simulated data. Detailed mathematical expressions are provided which could be useful for algorithm implementation. Comparative studies between these two methods shows that the MF architecture (measurement fusion) provides estimates of states relatively less uncertainty followed by SVF (state vector fusion). The odometers measures give the position with relatively high uncertainty followed by the accelerometer measurements. It shows the need for fusion in navigation system.
{"title":"Fusion architectures with Extended KALMAN Filter for locate wheelchair position using sensors measurements","authors":"D. Nada, M. B. Salah, M. Bettayeb","doi":"10.1109/CISTEM.2014.7077077","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7077077","url":null,"abstract":"Tow different architectures are presented to fuse measurements coming from odometers, compass and accelerometer to locate wheelchair position in 2D Cartesian coordinates, with Extended KALMAN Filter (EKF). The performance of these architectures is checked with simulated data. Detailed mathematical expressions are provided which could be useful for algorithm implementation. Comparative studies between these two methods shows that the MF architecture (measurement fusion) provides estimates of states relatively less uncertainty followed by SVF (state vector fusion). The odometers measures give the position with relatively high uncertainty followed by the accelerometer measurements. It shows the need for fusion in navigation system.","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":"114396613","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.2014.7077024
Labiba Adjoudj, F. Lakdja, F. Z. Gherbi, Djaffar Ould Abdsallem
Integration of wind turbines may have significant impacts on power system operation. Generation of electricity from wind power has received considerable attention. This paper analyzes the impact of integrating wind generation and FACTS on the voltage collapse and active losses of network IEEE 30 bus test. Therefore, we must choose among FACTS devices, those with specific applications such as maintaining the voltage at the desired value and the control of power flow, SVC is the most effective in the compensation of reactive as well as maintaining the voltage, and TCSC is the best choice for a proper control of power flow and consequently the reduction of active losses. The simulation results show clearly the effect of wind power plants and FACTS on the grid, voltage stability and power quality of electric power system.
{"title":"Synthesis integrating wind generation and FACTS of network","authors":"Labiba Adjoudj, F. Lakdja, F. Z. Gherbi, Djaffar Ould Abdsallem","doi":"10.1109/CISTEM.2014.7077024","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7077024","url":null,"abstract":"Integration of wind turbines may have significant impacts on power system operation. Generation of electricity from wind power has received considerable attention. This paper analyzes the impact of integrating wind generation and FACTS on the voltage collapse and active losses of network IEEE 30 bus test. Therefore, we must choose among FACTS devices, those with specific applications such as maintaining the voltage at the desired value and the control of power flow, SVC is the most effective in the compensation of reactive as well as maintaining the voltage, and TCSC is the best choice for a proper control of power flow and consequently the reduction of active losses. The simulation results show clearly the effect of wind power plants and FACTS on the grid, voltage stability and power quality of electric power system.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"57 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":"114580792","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.2014.7077055
N. Drir, L. Barazane, M. Loudini
The aim of the present research is the comparative for variety controller of maximum power point tracking (MPPT) in photovoltaic system under variable temperature and isolation conditions. The first controller refers to traditional approach based on the perturbation & observation (P&O) methods, the second and third one refers to new approach based respectively on artificial neural network (ANN) and fuzzy logic (FC). The performances of these adopted controllers are examined and compared through a series of simulation witch shown the good tracking and rapid response to change in different meteorological conditions of intelligent controllers compare with the conventional one.
{"title":"Comparative study of maximum power point tracking methods of photovoltaic systems","authors":"N. Drir, L. Barazane, M. Loudini","doi":"10.1109/CISTEM.2014.7077055","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7077055","url":null,"abstract":"The aim of the present research is the comparative for variety controller of maximum power point tracking (MPPT) in photovoltaic system under variable temperature and isolation conditions. The first controller refers to traditional approach based on the perturbation & observation (P&O) methods, the second and third one refers to new approach based respectively on artificial neural network (ANN) and fuzzy logic (FC). The performances of these adopted controllers are examined and compared through a series of simulation witch shown the good tracking and rapid response to change in different meteorological conditions of intelligent controllers compare with the conventional one.","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":"114633945","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.2014.7076925
Wassim Mansour, K. Jelassi
Starting from the “Industry 4.0” concept, this work aims to develop an event-condition-action (ECA) based structure to control intelligent manufacturing systems (IMS). RFID technology is used as a main component to gather data from shop floor. This data is used to control product routing among workstations and to control systems agents (robot's arms for example). The whole system has OPC based architecture.
{"title":"RFID technology to control manufacturing systems using OPC server","authors":"Wassim Mansour, K. Jelassi","doi":"10.1109/CISTEM.2014.7076925","DOIUrl":"https://doi.org/10.1109/CISTEM.2014.7076925","url":null,"abstract":"Starting from the “Industry 4.0” concept, this work aims to develop an event-condition-action (ECA) based structure to control intelligent manufacturing systems (IMS). RFID technology is used as a main component to gather data from shop floor. This data is used to control product routing among workstations and to control systems agents (robot's arms for example). The whole system has OPC based architecture.","PeriodicalId":115632,"journal":{"name":"2014 International Conference on Electrical Sciences and Technologies in Maghreb (CISTEM)","volume":"5 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":"134481859","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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