The implementation of Direct Torque Control (DTC) in Induction Motor (IM) drives suffers from com... more The implementation of Direct Torque Control (DTC) in Induction Motor (IM) drives suffers from complex tuning and overshoots problems. One of the various methods to tackle this problem is the use of intelligent controllers like Neuro Fuzzy Controller (NFC). This paper suggests a new approach, NFC based space vector modulation (SVM), on the direct torque controlled IM and aim of the approach is to overcome high torque ripple disadvantages of conventional DTC. The objective of this paper is to present a new method to implement the algorithm of NEURO FUZZY based SVM-DTC on Field Programmable Gate Array (FPGA). The hardware implementation method is based on Xilinx System Generator (XSG) which a modeling tool developed by Xilinx. This tool can automatically generate the VHDL code without resorting to a painful programming without being obliged to do approximations and more we can visualize the behavior of the machine before implementation which is very important for not damage our machine. The simulation results showed that a significant improvement in the dynamic torque and speed responses when compared to the conventional direct torque control method.
Journal of Electrical Engineering & Technology, Jul 1, 2015
In this paper the hardware implementation of the direct torque control based on the fuzzy logic t... more In this paper the hardware implementation of the direct torque control based on the fuzzy logic technique of induction motor on the Field-Programmable Gate Array (FPGA) is presented. Due to its complexity, the fuzzy logic technique implemented on a digital system like the DSP (Digital Signal Processor) and microcontroller is characterized by a calculating delay. This delay is due to the processing speed which depends on the system complexity. The limitation of these solutions is inevitable. To solve this problem, an alternative digital solution is used, based on the FPGA, which is characterized by a fast processing speed, to take the advantage of the performances of the fuzzy logic technique in spite of its complex computation. The Conventional Direct Torque Control (CDTC) of the induction machine faces problems, like the high stator flux, electromagnetic torque ripples, and stator current distortions. To overcome the CDTC problems many methods are used such as the space vector modulation which is sensitive to the parameters variations of the machine, the increase in the switches inverter number which increases the cost of the inverter, and the artificial intelligence. In this paper an intelligent technique based on the fuzzy logic is used because it is allows controlling the systems without knowing the mathematical model. Also, we use a new method based on the Xilinx system generator for the hardware implementation of Direct Torque Fuzzy Control (DTFC) on the FPGA. The simulation results of the DTFC are compared to those of the CDTC. The comparison results illustrate the reduction in the torque and stator flux ripples of the DTFC and show the Xilinx Virtex V FPGA performances in terms of execution time.
International Journal on Electrical Engineering and Informatics, Dec 31, 2016
This paper resumes a Direct Torque Fuzzy Control (DTFC) of an Induction Motor (IM). The novel app... more This paper resumes a Direct Torque Fuzzy Control (DTFC) of an Induction Motor (IM). The novel approach aims to ameliorate the performances of the conventional Direct Torque Control (DTC) by considerably reducing electromagnetic torque and stator flux ripples and improving the form of stator current. The proposed controller is based on fuzzy logic technique and it is developed in order to be implemented on Field Programmable Gate Array chip (FPGA) by using Matlab/Simullink package and Xilinx System Generator (XSG) toolbox. The efficiency of proposed technique is evaluated through simulative results that show its performance compared to conventional one.
In this paper the hardware implementation of the direct torque control based on the fuzzy logic t... more In this paper the hardware implementation of the direct torque control based on the fuzzy logic technique of induction motor on the Field-Programmable Gate Array (FPGA) is presented. Due to its complexity, the fuzzy logic technique implemented on a digital system like the DSP (Digital Signal Processor) and microcontroller is characterized by a calculating delay. This delay is due to the processing speed which depends on the system complexity. The limitation of these solutions is inevitable. To solve this problem, an alternative digital solution is used, based on the FPGA, which is characterized by a fast processing speed, to take the advantage of the performances of the fuzzy logic technique in spite of its complex computation. The Conventional Direct Torque Control (CDTC) of the induction machine faces problems, like the high stator flux, electromagnetic torque ripples, and stator current distortions. To overcome the CDTC problems many methods are used such as the space vector modulation which is sensitive to the parameters variations of the machine, the increase in the switches inverter number which increases the cost of the inverter, and the artificial intelligence. In this paper an intelligent technique based on the fuzzy logic is used because it is allows controlling the systems without knowing the mathematical model. Also, we use a new method based on the Xilinx system generator for the hardware implementation of Direct Torque Fuzzy Control (DTFC) on the FPGA. The simulation results of the DTFC are compared to those of the CDTC. The comparison results illustrate the reduction in the torque and stator flux ripples of the DTFC and show the Xilinx Virtex V FPGA performances in terms of execution time.
In this paper, a new design method of Direct Torque Control using Space Vector Modulation (DTC-SV... more In this paper, a new design method of Direct Torque Control using Space Vector Modulation (DTC-SVM) of an Induction Machine (IM), which is based on Fault Tolerant Control (FTC) is proposed. Due to its complexity, the FTC implemented on a microcontroller and a Digital Signal Processor (DSP) is characterized by a calculating delay. To solve this problem, an alternative digital solution is used, based on the Field Programmable Gate Array (FPGA), which is characterized by a fast processing speed. However, as an FPGAs increase in size, there is a need for improved productivity, and this includes new design flows and tools. Xilinx System Generator (XSG) is a high-level block-based design tool that offers bit and cycle accurate simulation. This tool can automatically generate the Very High-Density Logic (VHDL) code without resorting to a tough programming, without being obliged to do approximations and more we can visualize the behavior of the machine before implementation which is very im...
International Journal of Renewable Energy Research
This paper aims to propose and develop a research platform which can be utilized for rapid protot... more This paper aims to propose and develop a research platform which can be utilized for rapid prototyping of control algorithms of power converters used in the field of renewable energy, such as the photovoltaic systems. This study investigates the use of the Field-Programmable Gate Array (FPGA) to control the DC/DC power converter and the voltage inverters used in solar photovoltaic pumping systems. The power circuit of the pumping system consists of a PV system, a DC/DC converter, a two-level voltage inverter and an induction motor. The control system is based on an MPPT control algorithm and a Direct Torque Control with a Space Vector Modulation (DTC-SVM) based on proportional-integral controllers. In order to perform the hardware in the loop, the power circuit is realized using the Simulink blocks and the control system is designed using the Xilinx System Generator (XSG) tool. The VHDL code and the bit stream file of the suggested control algorithms have been automatically generated using the XSG tool. The hardware co-simulation step is carried out in the laboratory utilizing an FPGA Virtex 5 ML 507 and the Matlab/Simulink environment. A comparative study between the classical DTC and the DTC-SVM is presented. The FPGA-performance in terms of computation power is demonstrated.
Mitigation of electromagnetic inference (EMI) is currently a challenge for scientists and designe... more Mitigation of electromagnetic inference (EMI) is currently a challenge for scientists and designers in order to cope with electromagnetic compatibility (EMC) compliance in switching mode power supply (SMPS) and ensure the reliability of the whole system. Standard filtering techniques: passive and active ones present some insufficiency in terms of performance at high frequencies (HF) because analog components would no longer be controllable and this is mainly due to their parasitic elements. So developing EMI digital filters is very interesting, especially with the embedment of a machine control system on a field programmable gate array (FPGA) chip. In this paper, we present a design of an active digital EMI filter (ADF) to be integrated in a drive train system of an electric vehicle (EV). Hardware design as well as FPGA implementation issues have been presented to prove the efficiency of the developed digital filtering structure.
2016 4th International Conference on Control Engineering & Information Technology (CEIT), 2016
In the conventional Direct Torque Control (DTC) the stator flux and the electromagnetic torque ha... more In the conventional Direct Torque Control (DTC) the stator flux and the electromagnetic torque have high ripples due to the switching frequency variations. To fix it, the Space Vector Modulation (SVM) is used in this paper. This paper aims firstly to develop a novel DTC-SVM structure based Sliding Mode (SM) controllers to overcome the DTC-SVM based PI controllers limitations, such as the sensitivity to the external disturbances and the parameter variations. Secondly, this paper deals to reduce the sampling period of the system utilizing the Field Programmable Array (FPGA). The conventional DTC, DTC-SVM with PI controllers and the DTC-SVM with SM controllers are developed, designed from Xilinx system generator tool, implemented on the FPGA-Virtex-5 ML507, and then compared in terms of ripples and the stator resistance variation. It has been noticed that the DTC-SVM with SM controllers provides a torque and flux with very low ripples and it is robust under stator resistance variations.
International Journal of Engineering and Future Technology, 2016
The implementation of conventional Direct Torque Control (DTC) in Induction Motor drives suffers ... more The implementation of conventional Direct Torque Control (DTC) in Induction Motor drives suffers from complex tuning and overshoots problems. One of the various methods to tackle this problem is implementation of intelligent controllers like Neuro Fuzzy controller. In this paper, we propose the application of Neuro Fuzzy Logic (NFL) in the Direct Torque Control (DTNFC) of an induction motor in order to overcome the conventional DTC limitations. The NFL controller is shown to be able to reduce the torque, Stator flux and current ripples. The design, implementation and simulation of the overall drive system are performed using MATLAB/Simulink program and Xilinx ISE Design (XSG).
Photovoltaic system applications should operate under good conditions. The maximum power point de... more Photovoltaic system applications should operate under good conditions. The maximum power point depends on the sunlight angle on the panel surface. In this chapter, an induction motor (IM) controlled with a direct torque control (DTC) is used to control the photovoltaic panel position. The conventional DTC is chosen thanks to its capability to develop the maximum of torque when the motor is standstill. However, the DTC produces a torque with high ripples and it is suffer from the flux demagnetization phenomenon, especially at low speed. To overcome these problems, two DTC approaches are proposed in this chapter: (1) the DTC based on the fuzzy logic and (2) the DTC based on space vector modulation (SVM) and proportional integral (PI) controllers (DTC-SVM-PI). The suggested approaches are implemented on a field programmable gate array (FPGA) Virtex 5 circuit in order to reduce the sampling period of the system and the delay in the control loop. The simulation and hardware implementatio...
HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific r... more HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. Copyright Commande directe de couple d’un moteur asynchrone à base de techniques intelligentes Soufien Gdaim
Instead of analog Electromagnetic Interference (EMI) filters, digital filters have been the alter... more Instead of analog Electromagnetic Interference (EMI) filters, digital filters have been the alternate EMI mitigation solution in power converters to overcome the passive and analog active filters ‘limitations such as size, cost, size and high power consumption. In this paper, Common Mode (CM) EMI digital filter based on the use of fuzzy logic technique, is proposed. The filter is modeled and integrated in a field programmable gate Array (FPGA) device. Matlab/Simulink environment is used for the co-simulation PSpice/Simulink and the block sets of Xilinx System Generator (XSG) has been used for a rapid prototyping. The figure-of-merit of the proposed EMI filter is presented. The simulation results using MATLAB/Simulink have been discussed.
Third International Conference on Natural Computation (ICNC 2007), 2007
This paper resumes a Direct Torque Fuzzy Control (DTFC) of an Induction Motor (IM). The novel app... more This paper resumes a Direct Torque Fuzzy Control (DTFC) of an Induction Motor (IM). The novel approach aims to ameliorate the performances of the conventional Direct Torque Control (DTC) by considerably reducing electromagnetic torque and stator flux ripples and improving the form of stator current. The proposed controller is based on fuzzy logic technique and it is developed in order to be implemented on Field Programmable Gate Array chip (FPGA) by using Matlab/Simullink package and Xilinx System Generator (XSG) toolbox. The efficiency of proposed technique is evaluated through simulative results that show its performance compared to conventional one.
14th International Conference on Sciences and Techniques of Automatic Control & Computer Engineering - STA'2013, 2013
ABSTRACT The objective of this paper is to get the VHDL code of the backstepping control of an in... more ABSTRACT The objective of this paper is to get the VHDL code of the backstepping control of an induction motor without requiring to go through a programming language. The solution that we proposed in this paper is to use the Xilinx System Generator (XSG) toolbox added to Matlab / Simulink. The interest of this proposed method is to profit of both advantages of simulink and XSG. The first simulates the control and test its proper functioning and the second allows to obtain the discrete algorithm and to have the VHDL code that can be implemented on FPGA.
2013 World Congress on Computer and Information Technology (WCCIT), 2013
ABSTRACT The objective of this paper is to get the VHDL code of the Sliding mode control of a fie... more ABSTRACT The objective of this paper is to get the VHDL code of the Sliding mode control of a field oriented induction motor without requiring to go through a programming language. The solution that we proposed in this paper is to use the Xilinx System Generator (XSG) blockset added to Matlab / Simulink. The interest of this proposed method is to profit of both advantages of simulink and XSG. The first simulates the control and test its proper functioning and the second allows to obtain the discrete algorithm and to have the VHDL code that can be implemented on FPGA.
14th International Conference on Sciences and Techniques of Automatic Control & Computer Engineering - STA'2013, 2013
ABSTRACT In this paper we propose the application of fuzzy logic in the Direct Torque Control (DT... more ABSTRACT In this paper we propose the application of fuzzy logic in the Direct Torque Control (DTC) of an induction motor in order to overcome the conventional DTC limitations. The performance of the proposed controller is evaluated through digital simulation and developed to be implemented on FPGA chip using Matlab/Simulink package and the toolbox Xilinx System Generator (XSG). The fuzzy controller is shown to be able to reduce the torque, Stator flux and current ripples by simulative results.
14th International Conference on Sciences and Techniques of Automatic Control & Computer Engineering - STA'2013, 2013
ABSTRACT The aim of this paper is to present an improved Direct Torque Control based on the Artif... more ABSTRACT The aim of this paper is to present an improved Direct Torque Control based on the Artificial Neural Networks. Thanks to their advantages, in this paper we proposed the use of Xilinx System Generator toolbox added to Matlab / Simulink. This solution replaces the use of programming language. Obtained results demonstrate that the proposed control is able to obtain high performance
ABSTRACT In this paper, a design method of Direct Torque Control (DTC) of induction machine, base... more ABSTRACT In this paper, a design method of Direct Torque Control (DTC) of induction machine, based on Fuzzy Logic Control (FLC) is proposed. The FLC which is introduced to improve the DTC uses a reduced number of fuzzy inference rules that facilitates the reduction of the FLC computation time. The improvement is performed by reducing the torque and stator flux ripples in induction machine drive. Then a hardware description based on VHDL hardware description language of the proposed design is presented and discussed. The techniques of parallel architecture, direct computation and modular architecture are adopted for the design of the controller. Simulation and experimental results of the DTFC are compared with those of the conventional DTC. The comparison results illustrate the reduction in the torque and stator flux ripples of the DTFC. The validity of the proposed method is confirmed by the simulation and experimental results.
The implementation of Direct Torque Control (DTC) in Induction Motor (IM) drives suffers from com... more The implementation of Direct Torque Control (DTC) in Induction Motor (IM) drives suffers from complex tuning and overshoots problems. One of the various methods to tackle this problem is the use of intelligent controllers like Neuro Fuzzy Controller (NFC). This paper suggests a new approach, NFC based space vector modulation (SVM), on the direct torque controlled IM and aim of the approach is to overcome high torque ripple disadvantages of conventional DTC. The objective of this paper is to present a new method to implement the algorithm of NEURO FUZZY based SVM-DTC on Field Programmable Gate Array (FPGA). The hardware implementation method is based on Xilinx System Generator (XSG) which a modeling tool developed by Xilinx. This tool can automatically generate the VHDL code without resorting to a painful programming without being obliged to do approximations and more we can visualize the behavior of the machine before implementation which is very important for not damage our machine. The simulation results showed that a significant improvement in the dynamic torque and speed responses when compared to the conventional direct torque control method.
Journal of Electrical Engineering & Technology, Jul 1, 2015
In this paper the hardware implementation of the direct torque control based on the fuzzy logic t... more In this paper the hardware implementation of the direct torque control based on the fuzzy logic technique of induction motor on the Field-Programmable Gate Array (FPGA) is presented. Due to its complexity, the fuzzy logic technique implemented on a digital system like the DSP (Digital Signal Processor) and microcontroller is characterized by a calculating delay. This delay is due to the processing speed which depends on the system complexity. The limitation of these solutions is inevitable. To solve this problem, an alternative digital solution is used, based on the FPGA, which is characterized by a fast processing speed, to take the advantage of the performances of the fuzzy logic technique in spite of its complex computation. The Conventional Direct Torque Control (CDTC) of the induction machine faces problems, like the high stator flux, electromagnetic torque ripples, and stator current distortions. To overcome the CDTC problems many methods are used such as the space vector modulation which is sensitive to the parameters variations of the machine, the increase in the switches inverter number which increases the cost of the inverter, and the artificial intelligence. In this paper an intelligent technique based on the fuzzy logic is used because it is allows controlling the systems without knowing the mathematical model. Also, we use a new method based on the Xilinx system generator for the hardware implementation of Direct Torque Fuzzy Control (DTFC) on the FPGA. The simulation results of the DTFC are compared to those of the CDTC. The comparison results illustrate the reduction in the torque and stator flux ripples of the DTFC and show the Xilinx Virtex V FPGA performances in terms of execution time.
International Journal on Electrical Engineering and Informatics, Dec 31, 2016
This paper resumes a Direct Torque Fuzzy Control (DTFC) of an Induction Motor (IM). The novel app... more This paper resumes a Direct Torque Fuzzy Control (DTFC) of an Induction Motor (IM). The novel approach aims to ameliorate the performances of the conventional Direct Torque Control (DTC) by considerably reducing electromagnetic torque and stator flux ripples and improving the form of stator current. The proposed controller is based on fuzzy logic technique and it is developed in order to be implemented on Field Programmable Gate Array chip (FPGA) by using Matlab/Simullink package and Xilinx System Generator (XSG) toolbox. The efficiency of proposed technique is evaluated through simulative results that show its performance compared to conventional one.
In this paper the hardware implementation of the direct torque control based on the fuzzy logic t... more In this paper the hardware implementation of the direct torque control based on the fuzzy logic technique of induction motor on the Field-Programmable Gate Array (FPGA) is presented. Due to its complexity, the fuzzy logic technique implemented on a digital system like the DSP (Digital Signal Processor) and microcontroller is characterized by a calculating delay. This delay is due to the processing speed which depends on the system complexity. The limitation of these solutions is inevitable. To solve this problem, an alternative digital solution is used, based on the FPGA, which is characterized by a fast processing speed, to take the advantage of the performances of the fuzzy logic technique in spite of its complex computation. The Conventional Direct Torque Control (CDTC) of the induction machine faces problems, like the high stator flux, electromagnetic torque ripples, and stator current distortions. To overcome the CDTC problems many methods are used such as the space vector modulation which is sensitive to the parameters variations of the machine, the increase in the switches inverter number which increases the cost of the inverter, and the artificial intelligence. In this paper an intelligent technique based on the fuzzy logic is used because it is allows controlling the systems without knowing the mathematical model. Also, we use a new method based on the Xilinx system generator for the hardware implementation of Direct Torque Fuzzy Control (DTFC) on the FPGA. The simulation results of the DTFC are compared to those of the CDTC. The comparison results illustrate the reduction in the torque and stator flux ripples of the DTFC and show the Xilinx Virtex V FPGA performances in terms of execution time.
In this paper, a new design method of Direct Torque Control using Space Vector Modulation (DTC-SV... more In this paper, a new design method of Direct Torque Control using Space Vector Modulation (DTC-SVM) of an Induction Machine (IM), which is based on Fault Tolerant Control (FTC) is proposed. Due to its complexity, the FTC implemented on a microcontroller and a Digital Signal Processor (DSP) is characterized by a calculating delay. To solve this problem, an alternative digital solution is used, based on the Field Programmable Gate Array (FPGA), which is characterized by a fast processing speed. However, as an FPGAs increase in size, there is a need for improved productivity, and this includes new design flows and tools. Xilinx System Generator (XSG) is a high-level block-based design tool that offers bit and cycle accurate simulation. This tool can automatically generate the Very High-Density Logic (VHDL) code without resorting to a tough programming, without being obliged to do approximations and more we can visualize the behavior of the machine before implementation which is very im...
International Journal of Renewable Energy Research
This paper aims to propose and develop a research platform which can be utilized for rapid protot... more This paper aims to propose and develop a research platform which can be utilized for rapid prototyping of control algorithms of power converters used in the field of renewable energy, such as the photovoltaic systems. This study investigates the use of the Field-Programmable Gate Array (FPGA) to control the DC/DC power converter and the voltage inverters used in solar photovoltaic pumping systems. The power circuit of the pumping system consists of a PV system, a DC/DC converter, a two-level voltage inverter and an induction motor. The control system is based on an MPPT control algorithm and a Direct Torque Control with a Space Vector Modulation (DTC-SVM) based on proportional-integral controllers. In order to perform the hardware in the loop, the power circuit is realized using the Simulink blocks and the control system is designed using the Xilinx System Generator (XSG) tool. The VHDL code and the bit stream file of the suggested control algorithms have been automatically generated using the XSG tool. The hardware co-simulation step is carried out in the laboratory utilizing an FPGA Virtex 5 ML 507 and the Matlab/Simulink environment. A comparative study between the classical DTC and the DTC-SVM is presented. The FPGA-performance in terms of computation power is demonstrated.
Mitigation of electromagnetic inference (EMI) is currently a challenge for scientists and designe... more Mitigation of electromagnetic inference (EMI) is currently a challenge for scientists and designers in order to cope with electromagnetic compatibility (EMC) compliance in switching mode power supply (SMPS) and ensure the reliability of the whole system. Standard filtering techniques: passive and active ones present some insufficiency in terms of performance at high frequencies (HF) because analog components would no longer be controllable and this is mainly due to their parasitic elements. So developing EMI digital filters is very interesting, especially with the embedment of a machine control system on a field programmable gate array (FPGA) chip. In this paper, we present a design of an active digital EMI filter (ADF) to be integrated in a drive train system of an electric vehicle (EV). Hardware design as well as FPGA implementation issues have been presented to prove the efficiency of the developed digital filtering structure.
2016 4th International Conference on Control Engineering & Information Technology (CEIT), 2016
In the conventional Direct Torque Control (DTC) the stator flux and the electromagnetic torque ha... more In the conventional Direct Torque Control (DTC) the stator flux and the electromagnetic torque have high ripples due to the switching frequency variations. To fix it, the Space Vector Modulation (SVM) is used in this paper. This paper aims firstly to develop a novel DTC-SVM structure based Sliding Mode (SM) controllers to overcome the DTC-SVM based PI controllers limitations, such as the sensitivity to the external disturbances and the parameter variations. Secondly, this paper deals to reduce the sampling period of the system utilizing the Field Programmable Array (FPGA). The conventional DTC, DTC-SVM with PI controllers and the DTC-SVM with SM controllers are developed, designed from Xilinx system generator tool, implemented on the FPGA-Virtex-5 ML507, and then compared in terms of ripples and the stator resistance variation. It has been noticed that the DTC-SVM with SM controllers provides a torque and flux with very low ripples and it is robust under stator resistance variations.
International Journal of Engineering and Future Technology, 2016
The implementation of conventional Direct Torque Control (DTC) in Induction Motor drives suffers ... more The implementation of conventional Direct Torque Control (DTC) in Induction Motor drives suffers from complex tuning and overshoots problems. One of the various methods to tackle this problem is implementation of intelligent controllers like Neuro Fuzzy controller. In this paper, we propose the application of Neuro Fuzzy Logic (NFL) in the Direct Torque Control (DTNFC) of an induction motor in order to overcome the conventional DTC limitations. The NFL controller is shown to be able to reduce the torque, Stator flux and current ripples. The design, implementation and simulation of the overall drive system are performed using MATLAB/Simulink program and Xilinx ISE Design (XSG).
Photovoltaic system applications should operate under good conditions. The maximum power point de... more Photovoltaic system applications should operate under good conditions. The maximum power point depends on the sunlight angle on the panel surface. In this chapter, an induction motor (IM) controlled with a direct torque control (DTC) is used to control the photovoltaic panel position. The conventional DTC is chosen thanks to its capability to develop the maximum of torque when the motor is standstill. However, the DTC produces a torque with high ripples and it is suffer from the flux demagnetization phenomenon, especially at low speed. To overcome these problems, two DTC approaches are proposed in this chapter: (1) the DTC based on the fuzzy logic and (2) the DTC based on space vector modulation (SVM) and proportional integral (PI) controllers (DTC-SVM-PI). The suggested approaches are implemented on a field programmable gate array (FPGA) Virtex 5 circuit in order to reduce the sampling period of the system and the delay in the control loop. The simulation and hardware implementatio...
HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific r... more HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. Copyright Commande directe de couple d’un moteur asynchrone à base de techniques intelligentes Soufien Gdaim
Instead of analog Electromagnetic Interference (EMI) filters, digital filters have been the alter... more Instead of analog Electromagnetic Interference (EMI) filters, digital filters have been the alternate EMI mitigation solution in power converters to overcome the passive and analog active filters ‘limitations such as size, cost, size and high power consumption. In this paper, Common Mode (CM) EMI digital filter based on the use of fuzzy logic technique, is proposed. The filter is modeled and integrated in a field programmable gate Array (FPGA) device. Matlab/Simulink environment is used for the co-simulation PSpice/Simulink and the block sets of Xilinx System Generator (XSG) has been used for a rapid prototyping. The figure-of-merit of the proposed EMI filter is presented. The simulation results using MATLAB/Simulink have been discussed.
Third International Conference on Natural Computation (ICNC 2007), 2007
This paper resumes a Direct Torque Fuzzy Control (DTFC) of an Induction Motor (IM). The novel app... more This paper resumes a Direct Torque Fuzzy Control (DTFC) of an Induction Motor (IM). The novel approach aims to ameliorate the performances of the conventional Direct Torque Control (DTC) by considerably reducing electromagnetic torque and stator flux ripples and improving the form of stator current. The proposed controller is based on fuzzy logic technique and it is developed in order to be implemented on Field Programmable Gate Array chip (FPGA) by using Matlab/Simullink package and Xilinx System Generator (XSG) toolbox. The efficiency of proposed technique is evaluated through simulative results that show its performance compared to conventional one.
14th International Conference on Sciences and Techniques of Automatic Control & Computer Engineering - STA'2013, 2013
ABSTRACT The objective of this paper is to get the VHDL code of the backstepping control of an in... more ABSTRACT The objective of this paper is to get the VHDL code of the backstepping control of an induction motor without requiring to go through a programming language. The solution that we proposed in this paper is to use the Xilinx System Generator (XSG) toolbox added to Matlab / Simulink. The interest of this proposed method is to profit of both advantages of simulink and XSG. The first simulates the control and test its proper functioning and the second allows to obtain the discrete algorithm and to have the VHDL code that can be implemented on FPGA.
2013 World Congress on Computer and Information Technology (WCCIT), 2013
ABSTRACT The objective of this paper is to get the VHDL code of the Sliding mode control of a fie... more ABSTRACT The objective of this paper is to get the VHDL code of the Sliding mode control of a field oriented induction motor without requiring to go through a programming language. The solution that we proposed in this paper is to use the Xilinx System Generator (XSG) blockset added to Matlab / Simulink. The interest of this proposed method is to profit of both advantages of simulink and XSG. The first simulates the control and test its proper functioning and the second allows to obtain the discrete algorithm and to have the VHDL code that can be implemented on FPGA.
14th International Conference on Sciences and Techniques of Automatic Control & Computer Engineering - STA'2013, 2013
ABSTRACT In this paper we propose the application of fuzzy logic in the Direct Torque Control (DT... more ABSTRACT In this paper we propose the application of fuzzy logic in the Direct Torque Control (DTC) of an induction motor in order to overcome the conventional DTC limitations. The performance of the proposed controller is evaluated through digital simulation and developed to be implemented on FPGA chip using Matlab/Simulink package and the toolbox Xilinx System Generator (XSG). The fuzzy controller is shown to be able to reduce the torque, Stator flux and current ripples by simulative results.
14th International Conference on Sciences and Techniques of Automatic Control & Computer Engineering - STA'2013, 2013
ABSTRACT The aim of this paper is to present an improved Direct Torque Control based on the Artif... more ABSTRACT The aim of this paper is to present an improved Direct Torque Control based on the Artificial Neural Networks. Thanks to their advantages, in this paper we proposed the use of Xilinx System Generator toolbox added to Matlab / Simulink. This solution replaces the use of programming language. Obtained results demonstrate that the proposed control is able to obtain high performance
ABSTRACT In this paper, a design method of Direct Torque Control (DTC) of induction machine, base... more ABSTRACT In this paper, a design method of Direct Torque Control (DTC) of induction machine, based on Fuzzy Logic Control (FLC) is proposed. The FLC which is introduced to improve the DTC uses a reduced number of fuzzy inference rules that facilitates the reduction of the FLC computation time. The improvement is performed by reducing the torque and stator flux ripples in induction machine drive. Then a hardware description based on VHDL hardware description language of the proposed design is presented and discussed. The techniques of parallel architecture, direct computation and modular architecture are adopted for the design of the controller. Simulation and experimental results of the DTFC are compared with those of the conventional DTC. The comparison results illustrate the reduction in the torque and stator flux ripples of the DTFC. The validity of the proposed method is confirmed by the simulation and experimental results.
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Papers by Soufien GDAIM