Pub Date : 2014-12-01DOI: 10.1109/STA.2014.7086737
R. Boucetta, Alaa Chabir, Asma Ben Mansour
This paper presents the development of a classical and intelligent control approaches applied to a flexible single-link manipulator robot and compared in terms of input tracking and vibration suppression. Lagrange's equations and finite elements method are combined to compute dynamic model of a flexible link manipulator with one rigid joint. Next, dynamics are itemized to explain flexible link behavior. Then a fuzzy supervisory controller is developed and introduced in the high level of the closed-loop of the flexible manipulator. A generalized predictive controller is then developed and introduced in the flexible system closed-loop to minimize end-point residual vibrations. Simulation results obtained are compared to a Generalized Predictive Controller (GPC) in terms of end-point vibration suppression, input tracking and disturbance rejection. A conclusion encloses the paper.
{"title":"Fuzzy supervisory control and GPC applied to a flexible single-link manipulator","authors":"R. Boucetta, Alaa Chabir, Asma Ben Mansour","doi":"10.1109/STA.2014.7086737","DOIUrl":"https://doi.org/10.1109/STA.2014.7086737","url":null,"abstract":"This paper presents the development of a classical and intelligent control approaches applied to a flexible single-link manipulator robot and compared in terms of input tracking and vibration suppression. Lagrange's equations and finite elements method are combined to compute dynamic model of a flexible link manipulator with one rigid joint. Next, dynamics are itemized to explain flexible link behavior. Then a fuzzy supervisory controller is developed and introduced in the high level of the closed-loop of the flexible manipulator. A generalized predictive controller is then developed and introduced in the flexible system closed-loop to minimize end-point residual vibrations. Simulation results obtained are compared to a Generalized Predictive Controller (GPC) in terms of end-point vibration suppression, input tracking and disturbance rejection. A conclusion encloses the paper.","PeriodicalId":125957,"journal":{"name":"2014 15th International Conference on Sciences and Techniques of Automatic Control and Computer Engineering (STA)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115561840","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 : 2014-12-01DOI: 10.1109/STA.2014.7086688
D. Mzoughi, H. Allagui, A. Mami
This paper presents the development of a cell models for proton exchange membrane (PEM) fuel cell. The models have been implemented in MATLAB/SIMULINK and 20-sim environments. A comparative study was carried out in this manuscript between a Simulink and bond graph model of a 200-W stack (Electrochem Inc.) PEM cell, in order to understand its voltage behavior. After an overview of its operation, this paper proposes a PEM cell model supplied with pure hydrogen and oxygen. This model takes into account physico-chemical, electrochemical and thermal phenomena that can be found in a PEMFC. We propose a static model with dissociated electrodes which involves classical laws to describe the different phenomena in a stack. In essence, this model is directly implanted, firstly, under Matlab-Simulink, secondly under 20-sim software. The implementations are described. The given comparative study between the different modeling approaches is given to show the great advantages of the bond graph approach in the design process of fuel cell systems.
{"title":"A comparative study between a 20-sim and a Simulink single PEM cell model","authors":"D. Mzoughi, H. Allagui, A. Mami","doi":"10.1109/STA.2014.7086688","DOIUrl":"https://doi.org/10.1109/STA.2014.7086688","url":null,"abstract":"This paper presents the development of a cell models for proton exchange membrane (PEM) fuel cell. The models have been implemented in MATLAB/SIMULINK and 20-sim environments. A comparative study was carried out in this manuscript between a Simulink and bond graph model of a 200-W stack (Electrochem Inc.) PEM cell, in order to understand its voltage behavior. After an overview of its operation, this paper proposes a PEM cell model supplied with pure hydrogen and oxygen. This model takes into account physico-chemical, electrochemical and thermal phenomena that can be found in a PEMFC. We propose a static model with dissociated electrodes which involves classical laws to describe the different phenomena in a stack. In essence, this model is directly implanted, firstly, under Matlab-Simulink, secondly under 20-sim software. The implementations are described. The given comparative study between the different modeling approaches is given to show the great advantages of the bond graph approach in the design process of fuel cell systems.","PeriodicalId":125957,"journal":{"name":"2014 15th International Conference on Sciences and Techniques of Automatic Control and Computer Engineering (STA)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114186874","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 : 2014-12-01DOI: 10.1109/STA.2014.7086730
M. Salah, K. Bacha, A. Chaari
The aim of this work is to provide an alternative that could replace the conventional technique based on the spectral analysis of the line current to detect an unbalance state due to a weak amplitude drop affecting one of the three-phase currents drawn by a squirrel cage motor. From a theoretical investigation, it has been stated that the spectral analysis of the emf induced at the terminals of a simple search coil placed close to the motor frame may be of interest for diagnosis purpose. The experimental results have revealed that this suggested sensory signal provides an excellent fault indicator regardless of the load level.
{"title":"A novel technique for detecting unbalance condition of the stator currents drawn by a squirrel cage motor","authors":"M. Salah, K. Bacha, A. Chaari","doi":"10.1109/STA.2014.7086730","DOIUrl":"https://doi.org/10.1109/STA.2014.7086730","url":null,"abstract":"The aim of this work is to provide an alternative that could replace the conventional technique based on the spectral analysis of the line current to detect an unbalance state due to a weak amplitude drop affecting one of the three-phase currents drawn by a squirrel cage motor. From a theoretical investigation, it has been stated that the spectral analysis of the emf induced at the terminals of a simple search coil placed close to the motor frame may be of interest for diagnosis purpose. The experimental results have revealed that this suggested sensory signal provides an excellent fault indicator regardless of the load level.","PeriodicalId":125957,"journal":{"name":"2014 15th International Conference on Sciences and Techniques of Automatic Control and Computer Engineering (STA)","volume":"353 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116130348","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 : 2014-12-01DOI: 10.1109/STA.2014.7086703
T. Alnejaili, S. Drid, D. Mehdi, L. Chrifi-Alaoui
Demand side management is considered as the next evolution of smart grid technology, it can adjust the time and the quantity of the electricity usage either by shifting the demand during the peak hours or by moving the time of energy use to off-peak periods. The objective of this paper is to develop an efficient load side management strategy for photovoltaic-wind hybrid energy system for an isolated house. The strategy aims to control the non-critical loads of the house based on an efficient analysis of the daily load profile of the house and on the climate data. The simulation result shows the effectiveness of the proposed strategy, as it improves the energy balance of the system and eliminates the energy waste.
{"title":"Advanced strategy of Demand-side management for photovoltaic-wind energy system","authors":"T. Alnejaili, S. Drid, D. Mehdi, L. Chrifi-Alaoui","doi":"10.1109/STA.2014.7086703","DOIUrl":"https://doi.org/10.1109/STA.2014.7086703","url":null,"abstract":"Demand side management is considered as the next evolution of smart grid technology, it can adjust the time and the quantity of the electricity usage either by shifting the demand during the peak hours or by moving the time of energy use to off-peak periods. The objective of this paper is to develop an efficient load side management strategy for photovoltaic-wind hybrid energy system for an isolated house. The strategy aims to control the non-critical loads of the house based on an efficient analysis of the daily load profile of the house and on the climate data. The simulation result shows the effectiveness of the proposed strategy, as it improves the energy balance of the system and eliminates the energy waste.","PeriodicalId":125957,"journal":{"name":"2014 15th International Conference on Sciences and Techniques of Automatic Control and Computer Engineering (STA)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116131540","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 : 2014-12-01DOI: 10.1109/STA.2014.7086776
R. Saddem, F. Ben Hmida
Industrial environments are becoming more and more dynamic, complex, and uncertain. In such conditions, building safe systems is a major requirement and a big challenge which cannot be achieved without suitable diagnosis tools and methods. The early diagnosis approaches were mostly centralized and done offline. It was then proved that distribution is of a great contribution to realize better diagnosis of complex industrial systems. This paper focuses on Discrete Event Systems (DES) and introduces a distributed approach for online faults diagnosis in DES using Causal Temporal Signatures (CTS). The proposed solution relies on a multiagent architecture where multiple autonomous agents cooperate and coordinate their actions in the diagnosis process.
{"title":"Multiagent architecture for online diagnosis of discrete event systems using causal temporal signature approach","authors":"R. Saddem, F. Ben Hmida","doi":"10.1109/STA.2014.7086776","DOIUrl":"https://doi.org/10.1109/STA.2014.7086776","url":null,"abstract":"Industrial environments are becoming more and more dynamic, complex, and uncertain. In such conditions, building safe systems is a major requirement and a big challenge which cannot be achieved without suitable diagnosis tools and methods. The early diagnosis approaches were mostly centralized and done offline. It was then proved that distribution is of a great contribution to realize better diagnosis of complex industrial systems. This paper focuses on Discrete Event Systems (DES) and introduces a distributed approach for online faults diagnosis in DES using Causal Temporal Signatures (CTS). The proposed solution relies on a multiagent architecture where multiple autonomous agents cooperate and coordinate their actions in the diagnosis process.","PeriodicalId":125957,"journal":{"name":"2014 15th International Conference on Sciences and Techniques of Automatic Control and Computer Engineering (STA)","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124769705","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 : 2014-12-01DOI: 10.1109/STA.2014.7086802
Chefai Dhifaoui, T. Guesmi, H. Hadj Abdallah
This paper presents a new approach via MOPSO algorithm to solve optimal Economic Dispatch (ED) via Unit Commitment Problems (UCP). The unit commitment problem can be defined as the scheduling of production of electric power generating units over a daily to weekly time horizon in order to accomplish some objective. The problem solution must respect both generator constraints (such as ramp rate limits and minimum up or down times) and system constraints (reserve and energy requirements and, potentially, transmission constraints). The first function is the production cost. While the second one is the transition cost. A comparative study is conducted to examine the impact of reliability constraint on the optimal solution obtained. The ten machine thirty nine-bus system is used and the results show the effectiveness of MOPSO and confirm its potential to solve the unit commitment problem.
{"title":"Application of multi-objective PSO algorithm for Economic Dispatch (ED) through Unit Commitment Problems (UCP)","authors":"Chefai Dhifaoui, T. Guesmi, H. Hadj Abdallah","doi":"10.1109/STA.2014.7086802","DOIUrl":"https://doi.org/10.1109/STA.2014.7086802","url":null,"abstract":"This paper presents a new approach via MOPSO algorithm to solve optimal Economic Dispatch (ED) via Unit Commitment Problems (UCP). The unit commitment problem can be defined as the scheduling of production of electric power generating units over a daily to weekly time horizon in order to accomplish some objective. The problem solution must respect both generator constraints (such as ramp rate limits and minimum up or down times) and system constraints (reserve and energy requirements and, potentially, transmission constraints). The first function is the production cost. While the second one is the transition cost. A comparative study is conducted to examine the impact of reliability constraint on the optimal solution obtained. The ten machine thirty nine-bus system is used and the results show the effectiveness of MOPSO and confirm its potential to solve the unit commitment problem.","PeriodicalId":125957,"journal":{"name":"2014 15th International Conference on Sciences and Techniques of Automatic Control and Computer Engineering (STA)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125441401","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 : 2014-12-01DOI: 10.1109/STA.2014.7086763
Abdelhamid Bounemeur, M. Chemachema, N. Essounbouli
This paper deals with indirect adaptive control using fuzzy systems for a class of uncertain SISO systems with unknown control gain sign. The uncertain nonlinearities of the systems are captured by fuzzy systems that have been proven to be universal approximators and the Nussbaum -type function is used to deal with the unknown control gain sign. The proposed control scheme completely overcomes the singularity problem that occurs in the indirect adaptive feedback linearizing control. Projection in the estimate parameters is not required and the stability analysis of the closed-loop system is performed using Lyapunov approach. Simulation results are provided to verify the effectiveness of the proposed design.
{"title":"Robust indirect adaptive fuzzy control using Nussbaum gain for a class of SISO nonlinear systems with unknown directions","authors":"Abdelhamid Bounemeur, M. Chemachema, N. Essounbouli","doi":"10.1109/STA.2014.7086763","DOIUrl":"https://doi.org/10.1109/STA.2014.7086763","url":null,"abstract":"This paper deals with indirect adaptive control using fuzzy systems for a class of uncertain SISO systems with unknown control gain sign. The uncertain nonlinearities of the systems are captured by fuzzy systems that have been proven to be universal approximators and the Nussbaum -type function is used to deal with the unknown control gain sign. The proposed control scheme completely overcomes the singularity problem that occurs in the indirect adaptive feedback linearizing control. Projection in the estimate parameters is not required and the stability analysis of the closed-loop system is performed using Lyapunov approach. Simulation results are provided to verify the effectiveness of the proposed design.","PeriodicalId":125957,"journal":{"name":"2014 15th International Conference on Sciences and Techniques of Automatic Control and Computer Engineering (STA)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130165958","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 : 2014-12-01DOI: 10.1109/STA.2014.7086712
NourEldeen M. AbdAlrhman, L. Abusedra, A. Zerek
Broadband power line (BPL) was used for power transmission. In addition to that, it also gives another important benefit; that is data transmission via it also, the main advantage here is being able to use the existing power network infrastructure, means reducing the cost by 60%. However power line system were not designed for high speed data transmission as they consists of various branches and power line elements such as bridges, transformers, in addition to internal effect from their characteristics. In this paper it will study the BPL performance due the line parameters (characteristics) and discuss their effects with frequency increasing.
{"title":"The effect of broadband power line parameters on the communication signal","authors":"NourEldeen M. AbdAlrhman, L. Abusedra, A. Zerek","doi":"10.1109/STA.2014.7086712","DOIUrl":"https://doi.org/10.1109/STA.2014.7086712","url":null,"abstract":"Broadband power line (BPL) was used for power transmission. In addition to that, it also gives another important benefit; that is data transmission via it also, the main advantage here is being able to use the existing power network infrastructure, means reducing the cost by 60%. However power line system were not designed for high speed data transmission as they consists of various branches and power line elements such as bridges, transformers, in addition to internal effect from their characteristics. In this paper it will study the BPL performance due the line parameters (characteristics) and discuss their effects with frequency increasing.","PeriodicalId":125957,"journal":{"name":"2014 15th International Conference on Sciences and Techniques of Automatic Control and Computer Engineering (STA)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127031202","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 : 2014-12-01DOI: 10.1109/STA.2014.7086747
Lilia Zouari, Hafedh Abid, M. Abid
Flexible joint manipulators are widely used in industries. The harmonic drive is often token as rigid component in the mechanical arm control. Nevertheless, several studies have shown that the joint flexibility characteristic in manipulator seriously reduces the performance of whole system especially when including actuator dynamic. This paper proposes a back-stepping method to control flexible joint manipulator including the dynamic of actuator to obtain the desired trajectory with minimum vibration. The controller is achieved by the analysis of Lyapunov stability to guarantee the stability of the system. Backstepping controller has been treated for position control and an hysteresis controller has been developed for current control. Simulation results through simulink environment are necessary to show the effectiveness of the adopted controllers.
{"title":"Flexible joint manipulator based on backstepping controller","authors":"Lilia Zouari, Hafedh Abid, M. Abid","doi":"10.1109/STA.2014.7086747","DOIUrl":"https://doi.org/10.1109/STA.2014.7086747","url":null,"abstract":"Flexible joint manipulators are widely used in industries. The harmonic drive is often token as rigid component in the mechanical arm control. Nevertheless, several studies have shown that the joint flexibility characteristic in manipulator seriously reduces the performance of whole system especially when including actuator dynamic. This paper proposes a back-stepping method to control flexible joint manipulator including the dynamic of actuator to obtain the desired trajectory with minimum vibration. The controller is achieved by the analysis of Lyapunov stability to guarantee the stability of the system. Backstepping controller has been treated for position control and an hysteresis controller has been developed for current control. Simulation results through simulink environment are necessary to show the effectiveness of the adopted controllers.","PeriodicalId":125957,"journal":{"name":"2014 15th International Conference on Sciences and Techniques of Automatic Control and Computer Engineering (STA)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126484133","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 : 2014-12-01DOI: 10.1109/STA.2014.7086751
K. Kherraz, M. Hamerlain, N. Achour
Due to nonlinearities and uncertainties, the dynamic characteristics of underactuated systems are very difficult to obtain precisely. In this paper we develop a robust controller based on sliding mode control for the control of a class of underactuated systems. The stability of the proposed controller is proved with the Lyapunov function method. Simulation results made on a flexible link manipulator are given to illustrate effectiveness of our approach.
{"title":"Robust sliding mode controller for a class of under-actuated systems","authors":"K. Kherraz, M. Hamerlain, N. Achour","doi":"10.1109/STA.2014.7086751","DOIUrl":"https://doi.org/10.1109/STA.2014.7086751","url":null,"abstract":"Due to nonlinearities and uncertainties, the dynamic characteristics of underactuated systems are very difficult to obtain precisely. In this paper we develop a robust controller based on sliding mode control for the control of a class of underactuated systems. The stability of the proposed controller is proved with the Lyapunov function method. Simulation results made on a flexible link manipulator are given to illustrate effectiveness of our approach.","PeriodicalId":125957,"journal":{"name":"2014 15th International Conference on Sciences and Techniques of Automatic Control and Computer Engineering (STA)","volume":"2016 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114898993","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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