2021 International Conference on Control, Automation and Diagnosis (ICCAD)
This paper deals with robust torque controller design for induction motor. The design is based on... more This paper deals with robust torque controller design for induction motor. The design is based on singularly perturbed system theory and linear parameter-varying systems, with the rotor resistance acting as a time-varying parameter. In addition, the MRAS observer is designed to estimate both the rotor resistance and the electromagnetic torque, whereas an LPV observer estimates the rotor flux. The key feature of this proposed controller is that it improves and ensures both stability and robustness when the rotor resistance varies across the entire working range. Simulation tests are carried out to confirm the effectiveness of the proposed control approach.
In order to enhance the radiation sensitivity, a junctionless double graphene gate radiation sens... more In order to enhance the radiation sensitivity, a junctionless double graphene gate radiation sensitive FET (RADFET) besides associated analytical analysis are both introduced. Analytical models using the technique of variables separation are implemented to measure and evaluate the capabilities of both proposed and standard RADFET devices. In addition, the effect of graphene work function on the device performance measures is also investigated. Moreover, the elaborated model defines the figures of merit in the context of a multi-objective genetic algorithm (MGA) technique. The improved electrical response is compared with existing double gate (DG) RADFETs, where the proposed device figures of merit reveal that the optimized proposed RADFET provides improved electrical performance and sensitivity.
Journal européen des systèmes automatisés, Feb 28, 2022
The magnetohydrodynamic pump is an attractive solution, in particular for biomedical applications... more The magnetohydrodynamic pump is an attractive solution, in particular for biomedical applications. In an MHD pump, an electromagnetic force is created by the applied magnetic field, which causes the fluid movement. The main advantage of the MHD pump is there are no mobile (mechanical) parts and it can place directly on veins. The present paper deals with the blood behaviour in the MHD micropump. A neodymium permanent magnet is used for applying a magnetic field to the channel in the MHD micropump. The numerical study examines the influence of the channel dimensions, the flux magnetic density and the electrode potentials on the blood velocity. This micropump can be easily controlled by a low voltage source. The numerical simulation analysis for the adopted model was implemented in order to verify the micropump operation. The magnetic and electrical fields have a strong influence on blood velocity in the MHD micropump. Finite element modelling software was used for this process. The second objective of this work is the possibility to exploit the properties of this pump in hemodialysis to pump blood and cleaning fluid.
This paper deals with robust torque controller design for induction motor. The design is based on... more This paper deals with robust torque controller design for induction motor. The design is based on singularly perturbed system theory and linear parameter-varying systems, with the rotor resistance acting as a time-varying parameter. In addition, the MRAS observer is designed to estimate both the rotor resistance and the electromagnetic torque, whereas an LPV observer estimates the rotor flux. The key feature of this proposed controller is that it improves and ensures both stability and robustness when the rotor resistance varies across the entire working range. Simulation tests are carried out to confirm the effectiveness of the proposed control approach.
In this paper, we propose an implementation of a new technique of power maximization using a phot... more In this paper, we propose an implementation of a new technique of power maximization using a photovoltaic system emulator. The PV system design and its performance evaluation test before installation would be both costly and time-consuming. To overcome this problem the use of an emulator adds more performance and efficiency in the laboratory. Also, by measuring the voltage and current from the PV emulator the characteristic I-V and P-V are extract.The need to consider the measure power state is strongly nonlinear distribution curve with noise. For that reason, to establish and to detect the power value, measurement equations and dynamic equations proposed MPPT control strategy based on Kalman filter algorithm. The correctness and effectiveness of the strategy is verified by simulation and experiment. This algorithm was experimentally implemented. Data acquisition and control system were implemented using dSPACE1103. The results show that the Kalman filter MPPT work accurately and successfully under the change of solar irradiation.
This paper deals with a comprehensive supervisor control for a hybrid generation system. Such sys... more This paper deals with a comprehensive supervisor control for a hybrid generation system. Such system works in island mode and comprises a photovoltaic panel and a battery/super capacitor energy storage system. The principal aims of the proposed supervisor are, firstly, to control the energy flow of the system in order to satisfy the load power demand, secondly, to manage the loads according to the power availability to preserve the battery state of charge and to prevent the system failure under any condition. The effectiveness of the proposed control strategy are tested by simulation in different operating situation. The simulation result shows the efficiency of the proposed control strategy, as it improves the energy balance of the system and increases its reliability.
International Journal of Electrical Power & Energy Systems, 2020
The main feature of the proposed strategy is based on the replacement of the fixed switching tabl... more The main feature of the proposed strategy is based on the replacement of the fixed switching table by an adaptive one. The online update of the adaptive switching table depends on the reactive power variation and past switching sequences. The proposed adaptive direct power control is compared with Vector Control and Classical Direct Power Control. The robustness of the proposed control scheme against parameter, load and wind speed variations have done with success. The main performance of the Adaptive Direct Power Control strategy is the reduction of powers ripples, thus reduce of torque ripple on the shaft of the turbine.
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
This paper presents the design and the implementation of a model reference adaptive control of th... more This paper presents the design and the implementation of a model reference adaptive control of the active and reactive power regulation of a grid connected wind turbine based on a doubly fed induction generator. This regulation is achieved below the synchronous speed, by means of a maximum powerpoint tracking algorithm. The experiment was conducted on a 1 kW didactic wound rotor induction machine in association with a wind turbine emulator. This implementation is realized using a dSPACE 1104 single-board control and acquisition interface. The obtained results show a permanent track of the available maximum wind power, under a chosen wind speed profile. Furthermore the proposed controller exhibits a smooth regulation of the stator active and reactive power amounts exchanged between the machine and the grid.
Electrical Engineering & Electromechanics, Jun 27, 2023
Introduction. In this paper, a new approach for estimating the speed of in-wheel electric vehicle... more Introduction. In this paper, a new approach for estimating the speed of in-wheel electric vehicles with two independent rear drives is presented. Currently, the variable-speed induction motor replaces the DC motor drive in a wide range of applications, including electric vehicles where quick dynamic response is required. This is now possible as a result of significant improvements in the dynamic performance of electrical drives brought about by technological advancements and development in the fields of power commutation devices, digital signal processing, and, more recently, intelligent control systems. The system's reliability and robustness are improved, and the cost, size, and upkeep requirements of the induction motor drive are reduced through control strategies without a speed sensor. Successful uses of the induction motor without a sensor have been made for medium-and high-speed operations. However, low speed instability and instability under various charge perturbation conditions continue to be serious issues in this field of study and have not yet been effectively resolved. Some application such as traction drives and cranes are required to maintain the desired level of torque down to low speed levels with uncertain load torque disturbance conditions. Speed and torque control is more important particularly in motor-in-wheel traction drive train configuration where vehicle wheel rim is directly connected to the motor shaft to control the speed and torque. Novelty of the proposed work is to improve the dynamic performance of conventional controller used of model reference adaptive system speed observer using both type-1 and type-2 fuzzy logic controllers. Purpose. In proposed scheme, the performance of the engine is being controlled, fuzzy logic controller is controlling the estimate rotor speed, and results are then compared using type-1 and type-2. Method. For a two-wheeled motorized electric vehicle, a high-performance sensorless wheel motor drive based on both type-2 and type-1 fuzzy logic controllers of the model reference adaptive control system is developed. Results. Proved that, using fuzzy logic type-2 controller the sensorless speed control of the electrical differential of electric vehicle EV observer, much better results are achieved. Practical value. The main possibility of realizing reliable and efficient electric propulsion systems based on intelligent observers (type-2 fuzzy logic) is demonstrated. The research methodology has been designed to facilitate the future experimental implementation on a digital signal processor. References 27, table 3, figures 16.
HAL (Le Centre pour la Communication Scientifique Directe), Oct 24, 2018
In recent years, electrical energy has become a vital component for human life. Moreover, the int... more In recent years, electrical energy has become a vital component for human life. Moreover, the interest for alternative energy sources has an exponential rise nowadays as a consequence of the limitation in conventional energy sources. Wind energy is considered one of the most important renewable energy sources. Nowadays, in order to ensure an optimal energy use, management and control technologies of wind energy conversion system are developed rapidly. In this paper, both of the vector controller and sliding mode control strategy for an isolated doubly fed induction generator-based wind energy conversion system are studied, described, tested and compared. In order to ensure the safety of the connected load, the main purpose of the present work is to maintain output stator voltage and frequency at their reference values whether for load demand power variations and wind speed fluctuations. Experimental results demonstrate the effectiveness of the presented control strategies.
2021 International Conference on Control, Automation and Diagnosis (ICCAD)
This paper deals with robust torque controller design for induction motor. The design is based on... more This paper deals with robust torque controller design for induction motor. The design is based on singularly perturbed system theory and linear parameter-varying systems, with the rotor resistance acting as a time-varying parameter. In addition, the MRAS observer is designed to estimate both the rotor resistance and the electromagnetic torque, whereas an LPV observer estimates the rotor flux. The key feature of this proposed controller is that it improves and ensures both stability and robustness when the rotor resistance varies across the entire working range. Simulation tests are carried out to confirm the effectiveness of the proposed control approach.
In order to enhance the radiation sensitivity, a junctionless double graphene gate radiation sens... more In order to enhance the radiation sensitivity, a junctionless double graphene gate radiation sensitive FET (RADFET) besides associated analytical analysis are both introduced. Analytical models using the technique of variables separation are implemented to measure and evaluate the capabilities of both proposed and standard RADFET devices. In addition, the effect of graphene work function on the device performance measures is also investigated. Moreover, the elaborated model defines the figures of merit in the context of a multi-objective genetic algorithm (MGA) technique. The improved electrical response is compared with existing double gate (DG) RADFETs, where the proposed device figures of merit reveal that the optimized proposed RADFET provides improved electrical performance and sensitivity.
Journal européen des systèmes automatisés, Feb 28, 2022
The magnetohydrodynamic pump is an attractive solution, in particular for biomedical applications... more The magnetohydrodynamic pump is an attractive solution, in particular for biomedical applications. In an MHD pump, an electromagnetic force is created by the applied magnetic field, which causes the fluid movement. The main advantage of the MHD pump is there are no mobile (mechanical) parts and it can place directly on veins. The present paper deals with the blood behaviour in the MHD micropump. A neodymium permanent magnet is used for applying a magnetic field to the channel in the MHD micropump. The numerical study examines the influence of the channel dimensions, the flux magnetic density and the electrode potentials on the blood velocity. This micropump can be easily controlled by a low voltage source. The numerical simulation analysis for the adopted model was implemented in order to verify the micropump operation. The magnetic and electrical fields have a strong influence on blood velocity in the MHD micropump. Finite element modelling software was used for this process. The second objective of this work is the possibility to exploit the properties of this pump in hemodialysis to pump blood and cleaning fluid.
This paper deals with robust torque controller design for induction motor. The design is based on... more This paper deals with robust torque controller design for induction motor. The design is based on singularly perturbed system theory and linear parameter-varying systems, with the rotor resistance acting as a time-varying parameter. In addition, the MRAS observer is designed to estimate both the rotor resistance and the electromagnetic torque, whereas an LPV observer estimates the rotor flux. The key feature of this proposed controller is that it improves and ensures both stability and robustness when the rotor resistance varies across the entire working range. Simulation tests are carried out to confirm the effectiveness of the proposed control approach.
In this paper, we propose an implementation of a new technique of power maximization using a phot... more In this paper, we propose an implementation of a new technique of power maximization using a photovoltaic system emulator. The PV system design and its performance evaluation test before installation would be both costly and time-consuming. To overcome this problem the use of an emulator adds more performance and efficiency in the laboratory. Also, by measuring the voltage and current from the PV emulator the characteristic I-V and P-V are extract.The need to consider the measure power state is strongly nonlinear distribution curve with noise. For that reason, to establish and to detect the power value, measurement equations and dynamic equations proposed MPPT control strategy based on Kalman filter algorithm. The correctness and effectiveness of the strategy is verified by simulation and experiment. This algorithm was experimentally implemented. Data acquisition and control system were implemented using dSPACE1103. The results show that the Kalman filter MPPT work accurately and successfully under the change of solar irradiation.
This paper deals with a comprehensive supervisor control for a hybrid generation system. Such sys... more This paper deals with a comprehensive supervisor control for a hybrid generation system. Such system works in island mode and comprises a photovoltaic panel and a battery/super capacitor energy storage system. The principal aims of the proposed supervisor are, firstly, to control the energy flow of the system in order to satisfy the load power demand, secondly, to manage the loads according to the power availability to preserve the battery state of charge and to prevent the system failure under any condition. The effectiveness of the proposed control strategy are tested by simulation in different operating situation. The simulation result shows the efficiency of the proposed control strategy, as it improves the energy balance of the system and increases its reliability.
International Journal of Electrical Power & Energy Systems, 2020
The main feature of the proposed strategy is based on the replacement of the fixed switching tabl... more The main feature of the proposed strategy is based on the replacement of the fixed switching table by an adaptive one. The online update of the adaptive switching table depends on the reactive power variation and past switching sequences. The proposed adaptive direct power control is compared with Vector Control and Classical Direct Power Control. The robustness of the proposed control scheme against parameter, load and wind speed variations have done with success. The main performance of the Adaptive Direct Power Control strategy is the reduction of powers ripples, thus reduce of torque ripple on the shaft of the turbine.
This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY
This paper presents the design and the implementation of a model reference adaptive control of th... more This paper presents the design and the implementation of a model reference adaptive control of the active and reactive power regulation of a grid connected wind turbine based on a doubly fed induction generator. This regulation is achieved below the synchronous speed, by means of a maximum powerpoint tracking algorithm. The experiment was conducted on a 1 kW didactic wound rotor induction machine in association with a wind turbine emulator. This implementation is realized using a dSPACE 1104 single-board control and acquisition interface. The obtained results show a permanent track of the available maximum wind power, under a chosen wind speed profile. Furthermore the proposed controller exhibits a smooth regulation of the stator active and reactive power amounts exchanged between the machine and the grid.
Electrical Engineering & Electromechanics, Jun 27, 2023
Introduction. In this paper, a new approach for estimating the speed of in-wheel electric vehicle... more Introduction. In this paper, a new approach for estimating the speed of in-wheel electric vehicles with two independent rear drives is presented. Currently, the variable-speed induction motor replaces the DC motor drive in a wide range of applications, including electric vehicles where quick dynamic response is required. This is now possible as a result of significant improvements in the dynamic performance of electrical drives brought about by technological advancements and development in the fields of power commutation devices, digital signal processing, and, more recently, intelligent control systems. The system's reliability and robustness are improved, and the cost, size, and upkeep requirements of the induction motor drive are reduced through control strategies without a speed sensor. Successful uses of the induction motor without a sensor have been made for medium-and high-speed operations. However, low speed instability and instability under various charge perturbation conditions continue to be serious issues in this field of study and have not yet been effectively resolved. Some application such as traction drives and cranes are required to maintain the desired level of torque down to low speed levels with uncertain load torque disturbance conditions. Speed and torque control is more important particularly in motor-in-wheel traction drive train configuration where vehicle wheel rim is directly connected to the motor shaft to control the speed and torque. Novelty of the proposed work is to improve the dynamic performance of conventional controller used of model reference adaptive system speed observer using both type-1 and type-2 fuzzy logic controllers. Purpose. In proposed scheme, the performance of the engine is being controlled, fuzzy logic controller is controlling the estimate rotor speed, and results are then compared using type-1 and type-2. Method. For a two-wheeled motorized electric vehicle, a high-performance sensorless wheel motor drive based on both type-2 and type-1 fuzzy logic controllers of the model reference adaptive control system is developed. Results. Proved that, using fuzzy logic type-2 controller the sensorless speed control of the electrical differential of electric vehicle EV observer, much better results are achieved. Practical value. The main possibility of realizing reliable and efficient electric propulsion systems based on intelligent observers (type-2 fuzzy logic) is demonstrated. The research methodology has been designed to facilitate the future experimental implementation on a digital signal processor. References 27, table 3, figures 16.
HAL (Le Centre pour la Communication Scientifique Directe), Oct 24, 2018
In recent years, electrical energy has become a vital component for human life. Moreover, the int... more In recent years, electrical energy has become a vital component for human life. Moreover, the interest for alternative energy sources has an exponential rise nowadays as a consequence of the limitation in conventional energy sources. Wind energy is considered one of the most important renewable energy sources. Nowadays, in order to ensure an optimal energy use, management and control technologies of wind energy conversion system are developed rapidly. In this paper, both of the vector controller and sliding mode control strategy for an isolated doubly fed induction generator-based wind energy conversion system are studied, described, tested and compared. In order to ensure the safety of the connected load, the main purpose of the present work is to maintain output stator voltage and frequency at their reference values whether for load demand power variations and wind speed fluctuations. Experimental results demonstrate the effectiveness of the presented control strategies.
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