Faical Turki - Academia.edu (original) (raw)
Papers by Faical Turki
2012 15th International Power Electronics and Motion Control Conference (EPE/PEMC), 2012
Actually, there is a controversial discussion in automotive industry if the deployment of inducti... more Actually, there is a controversial discussion in automotive industry if the deployment of inductive power supply is able to avoid the disadvantages of conductive vehicle charging systems.
ABSTRACT: Inductive Power Supply is a new technology which is advantageous in comparison to curre... more ABSTRACT: Inductive Power Supply is a new technology which is advantageous in comparison to current- rails, cables and battery supply systems. The advantages of this new developed technology are based on main- tenance-free operation, no sparkling effects due to contact problems, complete isolation of primary and sec- ondary conductors and ruggedness against dust and environmental conditions. The basis for this new devel- oped technology is the use of a secondary coil, located on the moving transportation system inductively coupled to a primary winding which is located and fixed along the track of the transportation system. There are a number of technical problems to be solved to make this contactless inductive power supply work- ing with high efficiency and to become an economically power supply system. The use of high frequency leads to acceptable dimensions of the active secondary coil. The distributed winding on the primary leads to a large impedance and therefor corresponding ap...
2005 European Conference on Power Electronics and Applications, 2005
ABSTRACT Resonant power supply involves the use of zero-current-switching (ZCS) high-frequency in... more ABSTRACT Resonant power supply involves the use of zero-current-switching (ZCS) high-frequency inverters. The load can be considered as a bandpass, so that a variation of its resonant frequency (by decreasing of distance of the power consumer) means that the inverter switches at higher current which can damage the IGBTs. This paper proposes a closed-loop-control of the inverter frequency to preserve the ZCS condition
2014 IEEE International Electric Vehicle Conference (IEVC), 2014
2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, 2014
ABSTRACT For the individual mobility especially in urban areas electric and hybrid vehicles repre... more ABSTRACT For the individual mobility especially in urban areas electric and hybrid vehicles represent a serious alternative to conventionally-driven vehicles. The main disadvantage for the use of such vehicles for long distance is the low capacity of the battery. A quick charging time realized by a high power level of 50 kW (compared with a standard charging station) enables a use with higher drive range per day and for long distances. Therefore the development of a concept for a wide integration of high power charging stations in the electrical grid also in areas with weak power grid infrastructure is an essential pre-condition for a wide utilization of electric vehicles. This paper deals with a control method for the integration of quick charging stations in areas with weak power grid infrastructure.
2014 IEEE International Energy Conference (ENERGYCON), 2014
ABSTRACT The importance of electric and hybrid vehicles as a serious alternative to conventional-... more ABSTRACT The importance of electric and hybrid vehicles as a serious alternative to conventional-driven vehicles especially in urban areas increases. But the low capacity of the battery minimizes the use for the long distance. A quick charging time realized by a high power level of 50 kW (compared with a standard charging station) enables a higher range per day. Therefore the development of an infrastructure for high power charging at places with plublic access like motorway service stations is essential for a wide utilization of electric vehicles. This paper deals with different concepts to integrate quick charging stations in areas with weak power grid infrastructure.
10th International Multi-Conferences on Systems, Signals & Devices 2013 (SSD13), 2013
ABSTRACT Modern electric distribution networks are mutating towards higher use of renewable energ... more ABSTRACT Modern electric distribution networks are mutating towards higher use of renewable energy supplies, which deliver the energy depending on its availability and not the demand. That leads to fluctuations the actual electric system control cannot handle. In fact this issue may be solved mainly by storing the excess of energy until it gets needed. For faster applications requiring a high dynamic response, the most accurate storage medium are Double-Layer-Capacitors [1]. They have the ability to support the electrical distribution grid by balancing voltage drops, net flicker and harmonics due to their high power density thus low reaction time. An attractive alternative to static energy storage systems is the high number of batteries built in electric cars in the next years. Due to the future development of automotive market towards the electrification of cars, a very high distributed energy storage opportunity will be available. This may be also coupled to the grid via a bidirectional power electronics. Assuming that drivers don't always plug the cable to the mains, an automatic wireless energy transfer is proposed to guarantee a connection between the car battery and the grid. The aim of this work is to prove that both of these technologies are suitable for supporting the low voltage distribution grid for the required time intervals.
4th International Conference on Power Engineering, Energy and Electrical Drives, 2013
Actually, there is a controversial discussion in automotive industry if non-contact power supply ... more Actually, there is a controversial discussion in automotive industry if non-contact power supply is able to avoid the disadvantages of conductive vehicle charging systems. Beside several benefits concerning a higher charging comfort and a higher immunity against vandalism non-contact charging systems possess the drawback of a less efficiency compared to conventional charging devices. The approach described in this paper is the deployment of a SEPIC based rectifier instead of a conventional power factor correction unit. The SEPIC unit substitutes both the power factor correction unit and an also required DC-DC converter. Aim of this topology investigation is the reduction of losses within the topology chain to increase efficiency of the entire charging device.
SAE International Journal of Alternative Powertrains, 2014
2014 5th International Renewable Energy Congress (IREC), 2014
2012 15th International Power Electronics and Motion Control Conference (EPE/PEMC), 2012
Actually, there is a controversial discussion in automotive industry if the deployment of inducti... more Actually, there is a controversial discussion in automotive industry if the deployment of inductive power supply is able to avoid the disadvantages of conductive vehicle charging systems.
ABSTRACT: Inductive Power Supply is a new technology which is advantageous in comparison to curre... more ABSTRACT: Inductive Power Supply is a new technology which is advantageous in comparison to current- rails, cables and battery supply systems. The advantages of this new developed technology are based on main- tenance-free operation, no sparkling effects due to contact problems, complete isolation of primary and sec- ondary conductors and ruggedness against dust and environmental conditions. The basis for this new devel- oped technology is the use of a secondary coil, located on the moving transportation system inductively coupled to a primary winding which is located and fixed along the track of the transportation system. There are a number of technical problems to be solved to make this contactless inductive power supply work- ing with high efficiency and to become an economically power supply system. The use of high frequency leads to acceptable dimensions of the active secondary coil. The distributed winding on the primary leads to a large impedance and therefor corresponding ap...
2005 European Conference on Power Electronics and Applications, 2005
ABSTRACT Resonant power supply involves the use of zero-current-switching (ZCS) high-frequency in... more ABSTRACT Resonant power supply involves the use of zero-current-switching (ZCS) high-frequency inverters. The load can be considered as a bandpass, so that a variation of its resonant frequency (by decreasing of distance of the power consumer) means that the inverter switches at higher current which can damage the IGBTs. This paper proposes a closed-loop-control of the inverter frequency to preserve the ZCS condition
2014 IEEE International Electric Vehicle Conference (IEVC), 2014
2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion, 2014
ABSTRACT For the individual mobility especially in urban areas electric and hybrid vehicles repre... more ABSTRACT For the individual mobility especially in urban areas electric and hybrid vehicles represent a serious alternative to conventionally-driven vehicles. The main disadvantage for the use of such vehicles for long distance is the low capacity of the battery. A quick charging time realized by a high power level of 50 kW (compared with a standard charging station) enables a use with higher drive range per day and for long distances. Therefore the development of a concept for a wide integration of high power charging stations in the electrical grid also in areas with weak power grid infrastructure is an essential pre-condition for a wide utilization of electric vehicles. This paper deals with a control method for the integration of quick charging stations in areas with weak power grid infrastructure.
2014 IEEE International Energy Conference (ENERGYCON), 2014
ABSTRACT The importance of electric and hybrid vehicles as a serious alternative to conventional-... more ABSTRACT The importance of electric and hybrid vehicles as a serious alternative to conventional-driven vehicles especially in urban areas increases. But the low capacity of the battery minimizes the use for the long distance. A quick charging time realized by a high power level of 50 kW (compared with a standard charging station) enables a higher range per day. Therefore the development of an infrastructure for high power charging at places with plublic access like motorway service stations is essential for a wide utilization of electric vehicles. This paper deals with different concepts to integrate quick charging stations in areas with weak power grid infrastructure.
10th International Multi-Conferences on Systems, Signals & Devices 2013 (SSD13), 2013
ABSTRACT Modern electric distribution networks are mutating towards higher use of renewable energ... more ABSTRACT Modern electric distribution networks are mutating towards higher use of renewable energy supplies, which deliver the energy depending on its availability and not the demand. That leads to fluctuations the actual electric system control cannot handle. In fact this issue may be solved mainly by storing the excess of energy until it gets needed. For faster applications requiring a high dynamic response, the most accurate storage medium are Double-Layer-Capacitors [1]. They have the ability to support the electrical distribution grid by balancing voltage drops, net flicker and harmonics due to their high power density thus low reaction time. An attractive alternative to static energy storage systems is the high number of batteries built in electric cars in the next years. Due to the future development of automotive market towards the electrification of cars, a very high distributed energy storage opportunity will be available. This may be also coupled to the grid via a bidirectional power electronics. Assuming that drivers don't always plug the cable to the mains, an automatic wireless energy transfer is proposed to guarantee a connection between the car battery and the grid. The aim of this work is to prove that both of these technologies are suitable for supporting the low voltage distribution grid for the required time intervals.
4th International Conference on Power Engineering, Energy and Electrical Drives, 2013
Actually, there is a controversial discussion in automotive industry if non-contact power supply ... more Actually, there is a controversial discussion in automotive industry if non-contact power supply is able to avoid the disadvantages of conductive vehicle charging systems. Beside several benefits concerning a higher charging comfort and a higher immunity against vandalism non-contact charging systems possess the drawback of a less efficiency compared to conventional charging devices. The approach described in this paper is the deployment of a SEPIC based rectifier instead of a conventional power factor correction unit. The SEPIC unit substitutes both the power factor correction unit and an also required DC-DC converter. Aim of this topology investigation is the reduction of losses within the topology chain to increase efficiency of the entire charging device.
SAE International Journal of Alternative Powertrains, 2014
2014 5th International Renewable Energy Congress (IREC), 2014