Articles de journaux
|
2022
|
32. | dos Santos Lima, Giovana Pereira; Ait-Amar, Sonia; Velu, Gabriel; Frezel, Philippe; Boudiba, Abdelhamid; Poelman, Mireille; Nicolay, Arnaud; Herze, Pierre-Yves: Performance Analysis Based on Thermal Aging Tests of Sol-Gel and Polymer Insulated Wires by Enameling and Extrusion Technology. Dans: Energies, vol. 15, no. 14, p. 5164, 2022, ISSN: 1996-1073. @article{PereiradosSantosLima2022,
title = {Performance Analysis Based on Thermal Aging Tests of Sol-Gel and Polymer Insulated Wires by Enameling and Extrusion Technology},
author = {Giovana Pereira dos Santos Lima and Sonia Ait-Amar and Gabriel Velu and Philippe Frezel and Abdelhamid Boudiba and Mireille Poelman and Arnaud Nicolay and Pierre-Yves Herze},
url = {https://www.mdpi.com/1996-1073/15/14/5164},
doi = {10.3390/en15145164},
issn = {1996-1073},
year = {2022},
date = {2022-07-01},
journal = {Energies},
volume = {15},
number = {14},
pages = {5164},
abstract = {This research activity aims to evaluate electrical insulation system (EIS) intended for electrical machine winding wires. The evaluation is based on mechanical, thermal, and electrical properties tests following international standards for enameled wires. Dielectric parameters such as dissipation factor, partial discharge inception voltage (PDIV), parallel capacitance, and parallel resistance behavior of different insulator configurations on twisted-pair samples are observed during thermal aging tests. Those configurations are formed of different combinations of dielectric layers based on conventional polymers (polyester-imide (PEI), polyamide-imide (PAI), polyimide (PI)) used as coating wires. A study using two mineral varnishes (silica-based) obtained by the sol-gel process integrated on these classical enamels an outer layer of extrusion of thermoplastic polymer with and without mineral fillers. Given the high consummation of energy and the use of unsustainable materials involving the production of wires, the principal interest of this work is to exploit new configurations of coating wire produced, with less environmental impact than conventional ones. This work investigates the impact of filled resins on the performance of insulating samples and the influence of the use of sol-gel solutions (mineral varnishes) on the insulated wire to increase the thermal class.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
This research activity aims to evaluate electrical insulation system (EIS) intended for electrical machine winding wires. The evaluation is based on mechanical, thermal, and electrical properties tests following international standards for enameled wires. Dielectric parameters such as dissipation factor, partial discharge inception voltage (PDIV), parallel capacitance, and parallel resistance behavior of different insulator configurations on twisted-pair samples are observed during thermal aging tests. Those configurations are formed of different combinations of dielectric layers based on conventional polymers (polyester-imide (PEI), polyamide-imide (PAI), polyimide (PI)) used as coating wires. A study using two mineral varnishes (silica-based) obtained by the sol-gel process integrated on these classical enamels an outer layer of extrusion of thermoplastic polymer with and without mineral fillers. Given the high consummation of energy and the use of unsustainable materials involving the production of wires, the principal interest of this work is to exploit new configurations of coating wire produced, with less environmental impact than conventional ones. This work investigates the impact of filled resins on the performance of insulating samples and the influence of the use of sol-gel solutions (mineral varnishes) on the insulated wire to increase the thermal class. |
31. | Ait-Amar, Sonia; Saoudi, Rania; Vélu, Gabriel: Thermal Aging Study of an Anodized Aluminum Strip Wire for Winding and High Temperature Use. Dans: Energies, vol. 15, no. 15, p. 5362, 2022, ISSN: 1996-1073. @article{Ait-Amar2022a,
title = {Thermal Aging Study of an Anodized Aluminum Strip Wire for Winding and High Temperature Use},
author = {Sonia Ait-Amar and Rania Saoudi and Gabriel Vélu},
url = {https://www.mdpi.com/1996-1073/15/15/5362},
doi = {10.3390/en15155362},
issn = {1996-1073},
year = {2022},
date = {2022-07-01},
journal = {Energies},
volume = {15},
number = {15},
pages = {5362},
abstract = {Electrical machines are commonly used in industries and transport and are manufactured with enameled wire coils with polymer insulation. In extreme conditions, as in aeronautics and aerospace, where temperatures exceed 280 °C, the organic insulation deteriorates and it is necessary to find another way to insulate winding wires, in order to ensure a longer life duration of the insulation system and a better operating reliability of electric motors in these environments. Ceramics are more resistant to high temperatures than polymers and the proposed study focuses on the temperature dependence of the dielectric properties of anodized aluminum strips for use in high-temperature electrical machine windings. Different dielectric parameters are measured during thermal constraint. The purpose is to determine the temperature index of the anodized strip and propose a thermal stress life model.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Electrical machines are commonly used in industries and transport and are manufactured with enameled wire coils with polymer insulation. In extreme conditions, as in aeronautics and aerospace, where temperatures exceed 280 °C, the organic insulation deteriorates and it is necessary to find another way to insulate winding wires, in order to ensure a longer life duration of the insulation system and a better operating reliability of electric motors in these environments. Ceramics are more resistant to high temperatures than polymers and the proposed study focuses on the temperature dependence of the dielectric properties of anodized aluminum strips for use in high-temperature electrical machine windings. Different dielectric parameters are measured during thermal constraint. The purpose is to determine the temperature index of the anodized strip and propose a thermal stress life model. |
30. | Ait-Amar, Sonia; Koita, Abdoulay; Vélu, Gabriel: Interpretation of Eccentricity of an Enameled Wire by Capacitance Measurements. Dans: Energies, vol. 15, no. 8, p. 2802, 2022, ISSN: 1996-1073. @article{Ait-Amar2022,
title = {Interpretation of Eccentricity of an Enameled Wire by Capacitance Measurements},
author = {Sonia Ait-Amar and Abdoulay Koita and Gabriel Vélu},
url = {https://www.mdpi.com/1996-1073/15/8/2802},
doi = {10.3390/en15082802},
issn = {1996-1073},
year = {2022},
date = {2022-04-01},
journal = {Energies},
volume = {15},
number = {8},
pages = {2802},
abstract = {There are systems dedicated to measuring the eccentricity of enameled wires based on optical and electromagnetic phenomena. However, these methods are limited by the nature of the insulation and the conductor. The proposed solution consists of checking the wire eccentricity by an electrical measurement. Since it is a conductor on which an insulator is placed, the idea consists of forming a capacitor and measuring its capacitance in order to deduce the insulation thickness.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
There are systems dedicated to measuring the eccentricity of enameled wires based on optical and electromagnetic phenomena. However, these methods are limited by the nature of the insulation and the conductor. The proposed solution consists of checking the wire eccentricity by an electrical measurement. Since it is a conductor on which an insulator is placed, the idea consists of forming a capacitor and measuring its capacitance in order to deduce the insulation thickness. |
2020
|
27. | Laidoudi, Aicha; Duchesne, Stéphane; Morganti, Fabrice; Velu, Gabriel: High-power density induction machines with increased windings temperature. Dans: Open Physics, vol. 18, no. 1, p. 642–651, 2020, ISSN: 23915471. @article{Laidoudi2020,
title = {High-power density induction machines with increased windings temperature},
author = {Aicha Laidoudi and Stéphane Duchesne and Fabrice Morganti and Gabriel Velu},
url = {https://www.degruyter.com/document/doi/10.1515/phys-2020-0131/html},
doi = {10.1515/phys-2020-0131},
issn = {23915471},
year = {2020},
date = {2020-10-01},
journal = {Open Physics},
volume = {18},
number = {1},
pages = {642--651},
abstract = {The increase of the operating temperature of electrical machines is a major challenge in the context of the large-scale use of electricity in many industrial or individual applications such as mobility. Indeed, working at higher temperatures makes it possible to place electrical actuators in critical areas-such as aircraft engines, for example- A nd/or to significantly improve the power-to-weight ratio of the machine. For several applications (deep pumping, ventilation, etc.), the use of the induction machine is still preferred due to cost, simplicity and robustness essentially. The objective of this study is to estimate the possibilities of making a high-temperature squirrel cage induction machine. A significant increase in the operating temperature of a machine would indirectly allow us to envisage an increase in the current density in the active conductors and thus a significant improvement in the power-to-weight ratio. However, this is at the sacrifice of efficiency. The aim of this study is to evaluate this decrease in efficiency correlated with the increase in the temperature to find the best compromise according to the relevant applications. An analytic sizing model has been proposed for the prediction of losses, which will be coupled with a thermal model to predict the temperature in different parts of the machine. This study presents essential information on the influence of temperature on the parameters important for the performance of an induction machine.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The increase of the operating temperature of electrical machines is a major challenge in the context of the large-scale use of electricity in many industrial or individual applications such as mobility. Indeed, working at higher temperatures makes it possible to place electrical actuators in critical areas-such as aircraft engines, for example- A nd/or to significantly improve the power-to-weight ratio of the machine. For several applications (deep pumping, ventilation, etc.), the use of the induction machine is still preferred due to cost, simplicity and robustness essentially. The objective of this study is to estimate the possibilities of making a high-temperature squirrel cage induction machine. A significant increase in the operating temperature of a machine would indirectly allow us to envisage an increase in the current density in the active conductors and thus a significant improvement in the power-to-weight ratio. However, this is at the sacrifice of efficiency. The aim of this study is to evaluate this decrease in efficiency correlated with the increase in the temperature to find the best compromise according to the relevant applications. An analytic sizing model has been proposed for the prediction of losses, which will be coupled with a thermal model to predict the temperature in different parts of the machine. This study presents essential information on the influence of temperature on the parameters important for the performance of an induction machine. |
26. | Lecointe, Jean-Philippe; Duchesne, Stéphane; Cozonac, Dorin; Velu, Gabriel; Komceza, Krzysztof: High temperature machine: Characterization of materials for the electrical insulation. Dans: Open Physics, vol. 18, no. 1, p. 674–682, 2020, ISSN: 23915471. @article{Lecointe2020a,
title = {High temperature machine: Characterization of materials for the electrical insulation},
author = {Jean-Philippe Lecointe and Stéphane Duchesne and Dorin Cozonac and Gabriel Velu and Krzysztof Komceza},
url = {https://www.degruyter.com/document/doi/10.1515/phys-2020-0109/html},
doi = {10.1515/phys-2020-0109},
issn = {23915471},
year = {2020},
date = {2020-10-01},
journal = {Open Physics},
volume = {18},
number = {1},
pages = {674--682},
abstract = {This paper aims to present and analyze the materials adapted to design a machine that can work with a high current density without any specific cooling system. In other words, the machine is equipped with material that supports high internal temperature, about 500°C. Candidate materials are selected and the authors indicate that inorganic insulation should be preferred for conductors and slot insulations. Tests are carried out on material selection through measurement of the turn-to-turn voltage, insulation resistances, and the parallel capacitances.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
This paper aims to present and analyze the materials adapted to design a machine that can work with a high current density without any specific cooling system. In other words, the machine is equipped with material that supports high internal temperature, about 500°C. Candidate materials are selected and the authors indicate that inorganic insulation should be preferred for conductors and slot insulations. Tests are carried out on material selection through measurement of the turn-to-turn voltage, insulation resistances, and the parallel capacitances. |
25. | Roger, Daniel; Velu, Gabriel; Ait-Amar, Sonia; Babicz, Sylvain: High temperature machines: A comparison between ceramic-coated wires and anodized aluminum strips. Dans: International Journal of Applied Electromagnetics and Mechanics, vol. 63, no. 4, p. 715–724, 2020, ISSN: 13835416. @article{Roger2020,
title = {High temperature machines: A comparison between ceramic-coated wires and anodized aluminum strips},
author = {Daniel Roger and Gabriel Velu and Sonia Ait-Amar and Sylvain Babicz},
editor = {Jean-Philippe Lecointe and Ewa Napieralska and Andrzej Demenko},
url = {https://www.medra.org/servlet/aliasResolver?alias=iospress&doi=10.3233/JAE-209209},
doi = {10.3233/JAE-209209},
issn = {13835416},
year = {2020},
date = {2020-08-01},
journal = {International Journal of Applied Electromagnetics and Mechanics},
volume = {63},
number = {4},
pages = {715--724},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
24. | Zouzou, Nada; Dang, Thu Thuy; Duchesne, Stéphane; Velu, Gabriel; Ninet, Olivier: Modeling and Experimental Characterization of Nickel-Coated Copper Wires for the Design of Extremely High-Temperature Electrical Machines. Dans: IEEE Transactions on Magnetics, vol. 56, no. 3, p. 1–9, 2020, ISSN: 19410069. @article{Zouzou2020,
title = {Modeling and Experimental Characterization of Nickel-Coated Copper Wires for the Design of Extremely High-Temperature Electrical Machines},
author = {Nada Zouzou and Thu Thuy Dang and Stéphane Duchesne and Gabriel Velu and Olivier Ninet},
url = {https://ieeexplore.ieee.org/document/8957369/},
doi = {10.1109/TMAG.2019.2961063},
issn = {19410069},
year = {2020},
date = {2020-03-01},
journal = {IEEE Transactions on Magnetics},
volume = {56},
number = {3},
pages = {1--9},
abstract = {The requirement for electrical machines operating at extremely high temperatures has prompted researchers to focus on new materials. The use of nickel-coated copper (Cu/Ni) wires can be a promising alternative to copper wires because of their resistance to oxidation at high temperatures. In this article, the characterization of Cu/Ni wires' electrical resistance in the frequency domain as well as the measurement of pure nickel's B(H) curve have been specified. The effect of nickel coated on a copper wire is remarkable in terms of electrical resistance at high frequencies because of the skin effect and eddy currents. An original model has been proposed for the prediction of the electrical resistance. The originality is to consider the bimetallic conductor as a transformer in order to generate its model. Since the analytical calculation is not possible because of the nonlinearity of the nickel's magnetic properties, a new numerical computational method for the determination of the impedances was proposed. The modeling results are correlated with the experimental tests made on 3 Cu/Ni wires: 0.3 mm diameter with 27% of nickel in volume and 0.5 mm diameter with 8 and 18 mu textm nickel thickness. This article, thus, provides essential information about the important parameters for the performance of electrical machines.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The requirement for electrical machines operating at extremely high temperatures has prompted researchers to focus on new materials. The use of nickel-coated copper (Cu/Ni) wires can be a promising alternative to copper wires because of their resistance to oxidation at high temperatures. In this article, the characterization of Cu/Ni wires' electrical resistance in the frequency domain as well as the measurement of pure nickel's B(H) curve have been specified. The effect of nickel coated on a copper wire is remarkable in terms of electrical resistance at high frequencies because of the skin effect and eddy currents. An original model has been proposed for the prediction of the electrical resistance. The originality is to consider the bimetallic conductor as a transformer in order to generate its model. Since the analytical calculation is not possible because of the nonlinearity of the nickel's magnetic properties, a new numerical computational method for the determination of the impedances was proposed. The modeling results are correlated with the experimental tests made on 3 Cu/Ni wires: 0.3 mm diameter with 27% of nickel in volume and 0.5 mm diameter with 8 and 18 mu textm nickel thickness. This article, thus, provides essential information about the important parameters for the performance of electrical machines. |
2019
|
23. | Babicz, Sylvain; Velu, Gabriel: Improving insulation quality of ceramic insulated conductors by dip coating with boron oxide. Dans: IEEE Transactions on Dielectrics and Electrical Insulation, vol. 26, no. 1, p. 51–55, 2019, ISSN: 1070-9878. @article{Babicz2019,
title = {Improving insulation quality of ceramic insulated conductors by dip coating with boron oxide},
author = {Sylvain Babicz and Gabriel Velu},
url = {https://ieeexplore.ieee.org/document/8624198/},
doi = {10.1109/TDEI.2018.007418},
issn = {1070-9878},
year = {2019},
date = {2019-02-01},
journal = {IEEE Transactions on Dielectrics and Electrical Insulation},
volume = {26},
number = {1},
pages = {51--55},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2018
|
19. | Ababsa, Mohamed-Lamine; Ninet, Olivier; Velu, Gabriel; Lecointe, Jean-Philippe: High-Temperature Magnetic Characterization Using an Adapted Epstein Frame. Dans: IEEE Transactions on Magnetics, vol. 54, no. 6, p. 1–6, 2018, ISSN: 0018-9464. @article{AbabsaMohamed2018,
title = {High-Temperature Magnetic Characterization Using an Adapted Epstein Frame},
author = {Mohamed-Lamine Ababsa and Olivier Ninet and Gabriel Velu and Jean-Philippe Lecointe},
url = {https://ieeexplore.ieee.org/document/8320967/},
doi = {10.1109/TMAG.2018.2811727},
issn = {0018-9464},
year = {2018},
date = {2018-06-01},
journal = {IEEE Transactions on Magnetics},
volume = {54},
number = {6},
pages = {1--6},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2017
|
18. | Babicz, Sylvain; Ait-Amar, Sonia; Velu, Gabriel; Cavallini, Andréa; Mancinelli, Paolo: Behavior of anodized aluminum strip under sine and square wave voltage. Dans: IEEE Transactions on Dielectrics and Electrical Insulation, vol. 24, no. 1, p. 39–46, 2017, ISSN: 1070-9878. @article{Babicz2017,
title = {Behavior of anodized aluminum strip under sine and square wave voltage},
author = {Sylvain Babicz and Sonia Ait-Amar and Gabriel Velu and Andréa Cavallini and Paolo Mancinelli},
url = {http://ieeexplore.ieee.org/document/7873458/},
doi = {10.1109/TDEI.2016.005834},
issn = {1070-9878},
year = {2017},
date = {2017-02-01},
journal = {IEEE Transactions on Dielectrics and Electrical Insulation},
volume = {24},
number = {1},
pages = {39--46},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2016
|
15. | Babicz, Sylvain; Ait-Amar, Sonia; Velu, Gabriel: Dielectric characteristics of an anodized aluminum strip. Dans: IEEE Transactions on Dielectrics and Electrical Insulation, vol. 23, no. 5, p. 2970–2977, 2016, ISSN: 1070-9878. @article{Babicz2016c,
title = {Dielectric characteristics of an anodized aluminum strip},
author = {Sylvain Babicz and Sonia Ait-Amar and Gabriel Velu},
url = {http://ieeexplore.ieee.org/document/7736860/},
doi = {10.1109/TDEI.2016.7736860},
issn = {1070-9878},
year = {2016},
date = {2016-10-01},
journal = {IEEE Transactions on Dielectrics and Electrical Insulation},
volume = {23},
number = {5},
pages = {2970--2977},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2015
|
11. | Khalfallaoui, Abderrazek; Burgnies, Ludovic; Blary, Karine; Velu, Gabriel; Lippens, Didier; Carru, Jean-Claude: Downscaling at submicrometer scale of the gap width of interdigitated Ba0.5Sr0.5TiO3 capacitors. Dans: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 62, no. 2, p. 247–254, 2015, ISSN: 0885-3010. @article{Khalfallaoui2015,
title = {Downscaling at submicrometer scale of the gap width of interdigitated Ba0.5Sr0.5TiO3 capacitors},
author = {Abderrazek Khalfallaoui and Ludovic Burgnies and Karine Blary and Gabriel Velu and Didier Lippens and Jean-Claude Carru},
url = {http://ieeexplore.ieee.org/document/7024974/},
doi = {10.1109/TUFFC.2014.006639},
issn = {0885-3010},
year = {2015},
date = {2015-02-01},
journal = {IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control},
volume = {62},
number = {2},
pages = {247--254},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
2014
|
9. | Velu, Gabriel; Duchesne, Stéphane; Roger, Daniel: Windings friendly environmental. Dans: European Journal of Electrical Engineering, vol. 17, no. 5-6, p. 277–290, 2014, ISSN: 21033641. @article{Velu2014a,
title = {Windings friendly environmental},
author = {Gabriel Velu and Stéphane Duchesne and Daniel Roger},
url = {http://ejee.revuesonline.com/article.jsp?articleId=35618},
doi = {10.3166/ejee.17.277-290},
issn = {21033641},
year = {2014},
date = {2014-12-01},
journal = {European Journal of Electrical Engineering},
volume = {17},
number = {5-6},
pages = {277--290},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Actes
|
2022
|
29. | dos Santos Lima, Giovana Pereira; Ait-Amar, Sonia; Vélu, Gabriel; Frezel, Philippe: Study of new ecological magnet wires performances during thermal aging tests. Dans: IEEE 4th International Conference on Dielectrics (ICD), Palermo, Italy, 2022. @inproceedings{PereiradosSantosLima2022b,
title = {Study of new ecological magnet wires performances during thermal aging tests},
author = {Giovana Pereira dos Santos Lima and Sonia Ait-Amar and Gabriel Vélu and Philippe Frezel},
year = {2022},
date = {2022-07-01},
booktitle = {IEEE 4th International Conference on Dielectrics (ICD)},
address = {Palermo, Italy},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
|
28. | dos Santos Lima, Giovana Pereira; Ait-Amar, Sonia; Vélu, Gabriel: Observation du PDIV durant le vieillissement thermique des fils isolés à base de sol-gel et de résines d'extrusion. Dans: 7èmes Journées Scientifiques 2022 GT Matériaux Diélectriques, Grenoble, France, 2022. @inproceedings{PereiradosSantosLima2022a,
title = {Observation du PDIV durant le vieillissement thermique des fils isolés à base de sol-gel et de résines d'extrusion},
author = {Giovana Pereira dos Santos Lima and Sonia Ait-Amar and Gabriel Vélu},
year = {2022},
date = {2022-03-01},
booktitle = {7èmes Journées Scientifiques 2022 GT Matériaux Diélectriques},
address = {Grenoble, France},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
|
2019
|
22. | Hachour, Samir; Ait-Amar, Sonia; Delmotte, François; Velu, Gabriel: A Belief Function Solution for Stator Insulation Robustness Study. Dans: 9th International Conference on Power and Energy Systems (ICPES), p. 1–5, Perth, Australia, 2019, ISBN: 9781728126586. @inproceedings{Hachour2019,
title = {A Belief Function Solution for Stator Insulation Robustness Study},
author = {Samir Hachour and Sonia Ait-Amar and François Delmotte and Gabriel Velu},
url = {https://ieeexplore.ieee.org/document/9105428/},
doi = {10.1109/ICPES47639.2019.9105428},
isbn = {9781728126586},
year = {2019},
date = {2019-12-01},
booktitle = {9th International Conference on Power and Energy Systems (ICPES)},
pages = {1--5},
address = {Perth, Australia},
abstract = {This paper proposes a model-based decision taking solution for electrical machines winding insulation robustness study. The solution is based on the Belief Function (BF) theory. It is processed in two main steps: a first one aims to learn Weibull model parameters from some labeled aging Partial Discharge Inception Voltage (PDIV) data. Then a second classification step separates some unlabeled PDIV data according to the learnt Weibull models. The classification results can give information on the robustness and the reliability of the Electrical Insulation System (EIS) under a thermal constraint.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
This paper proposes a model-based decision taking solution for electrical machines winding insulation robustness study. The solution is based on the Belief Function (BF) theory. It is processed in two main steps: a first one aims to learn Weibull model parameters from some labeled aging Partial Discharge Inception Voltage (PDIV) data. Then a second classification step separates some unlabeled PDIV data according to the learnt Weibull models. The classification results can give information on the robustness and the reliability of the Electrical Insulation System (EIS) under a thermal constraint. |
21. | Guezmil, Amal; Iosif, Vadim; Velu, Gabriel; Roger, Daniel: High temperature induction motor preliminary sizing. Dans: XIX International Symposium on Electromagnetic Fields (ISEF), p. 1–2, Nancy, France, 2019, ISBN: 9781728115603. @inproceedings{Guezmil2019b,
title = {High temperature induction motor preliminary sizing},
author = {Amal Guezmil and Vadim Iosif and Gabriel Velu and Daniel Roger},
url = {https://ieeexplore.ieee.org/document/9097044/},
doi = {10.1109/ISEF45929.2019.9097044},
isbn = {9781728115603},
year = {2019},
date = {2019-08-01},
booktitle = {XIX International Symposium on Electromagnetic Fields (ISEF)},
pages = {1--2},
address = {Nancy, France},
abstract = {This paper presents the preliminary sizing of a High Temperature (HTo) induction motor based on a copper cage rotor and a distributed winding built with an inorganic Electric Insulation System (EIS) able to withstand 500^circC. The specific part of the design derives of the poor mechanical and electrical characteristics of the inorganic HT ° insulation materials. HT ° wires are protected by a cement and form rigid coils. The laminated magnetic core has a specific design for suiting with the rigid coils. An Electrical and thermal models are validated.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
This paper presents the preliminary sizing of a High Temperature (HTo) induction motor based on a copper cage rotor and a distributed winding built with an inorganic Electric Insulation System (EIS) able to withstand 500^circC. The specific part of the design derives of the poor mechanical and electrical characteristics of the inorganic HT ° insulation materials. HT ° wires are protected by a cement and form rigid coils. The laminated magnetic core has a specific design for suiting with the rigid coils. An Electrical and thermal models are validated. |
20. | Zouzou, Nada; Velu, Gabriel; Duchesne, Stéphane; Dang, Thu Thuy: Caractérisation du fil cuivre nickelé dans le domaine fréquentiel. Dans: Journées couplées SEEDS / Jeunes Chercheurs en Génie Électrique, Oléron, France, 2019. @inproceedings{Zouzou2019,
title = {Caractérisation du fil cuivre nickelé dans le domaine fréquentiel},
author = {Nada Zouzou and Gabriel Velu and Stéphane Duchesne and Thu Thuy Dang},
year = {2019},
date = {2019-06-01},
booktitle = {Journées couplées SEEDS / Jeunes Chercheurs en Génie Électrique},
address = {Oléron, France},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
|
2017
|
17. | Ait-Amar, Sonia; Velu, Gabriel; Frezel, Philippe: Dielctric Parameters Study of Potting Resin. Dans: IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP 2017), p. 209–212, Fort Worth, TX, USA, 2017. @inproceedings{Aitamar2017,
title = {Dielctric Parameters Study of Potting Resin},
author = {Sonia Ait-Amar and Gabriel Velu and Philippe Frezel},
year = {2017},
date = {2017-10-01},
booktitle = {IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP 2017)},
pages = {209--212},
address = {Fort Worth, TX, USA},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
|
16. | Ababsa, Mohamed-Lamine; Ninet, Olivier; Velu, Gabriel: High temperature characterization of Fe-Si electrical steels sheets using an adapted Epstein. Dans: IEEE International Magnetics Conference (INTERMAG), Dublin, Ireland, 2017. @inproceedings{Ababsa2017,
title = {High temperature characterization of Fe-Si electrical steels sheets using an adapted Epstein},
author = {Mohamed-Lamine Ababsa and Olivier Ninet and Gabriel Velu},
year = {2017},
date = {2017-04-01},
booktitle = {IEEE International Magnetics Conference (INTERMAG)},
address = {Dublin, Ireland},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
|
2016
|
14. | Babicz, Sylvain; Ait-Amar, Sonia; Velu, Gabriel: Temperature and humidity dependence of anodized aluminum strip. Dans: IEEE 1st International Conference on Dielectrics (ICD), p. 979–982, Montpellier, France, 2016, ISBN: 9781509028023. @inproceedings{Babicz2016b,
title = {Temperature and humidity dependence of anodized aluminum strip},
author = {Sylvain Babicz and Sonia Ait-Amar and Gabriel Velu},
url = {http://ieeexplore.ieee.org/document/7547781/},
doi = {10.1109/ICD.2016.7547781},
isbn = {9781509028023},
year = {2016},
date = {2016-07-01},
booktitle = {IEEE 1st International Conference on Dielectrics (ICD)},
volume = {2},
pages = {979--982},
address = {Montpellier, France},
abstract = {High temperature machines are progressively showing their interest as more and more electrical engineering problems required them: air extractor fans for fire emergency equipment, aeronautical actuators. It is therefore needed to develop heat-resistant insulation to increase the reliability under high temperature. A proposed solution is the use of anodized aluminum strip which insulation is from the family of ceramics. Previous works determined the dielectric behavior of this strip under high temperature stress. This machine, whose coils will be wound with this strip, will be exposed to various surroundings conditions. The aim of this paper is to determine the dielectric behavior of this strip under climate conditions as varying humidity level and negative temperature. Partial Discharge Inception Voltage (PDIV) as well as Breakdown Voltage (BV) are studied. The results are correlated with the Paschen's law using humidity and temperature corrections.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
High temperature machines are progressively showing their interest as more and more electrical engineering problems required them: air extractor fans for fire emergency equipment, aeronautical actuators. It is therefore needed to develop heat-resistant insulation to increase the reliability under high temperature. A proposed solution is the use of anodized aluminum strip which insulation is from the family of ceramics. Previous works determined the dielectric behavior of this strip under high temperature stress. This machine, whose coils will be wound with this strip, will be exposed to various surroundings conditions. The aim of this paper is to determine the dielectric behavior of this strip under climate conditions as varying humidity level and negative temperature. Partial Discharge Inception Voltage (PDIV) as well as Breakdown Voltage (BV) are studied. The results are correlated with the Paschen's law using humidity and temperature corrections. |
13. | Babicz, Sylvain; Ait-Amar, Sonia; Velu, Gabriel: Evaluation of the boron oxide healing performance in the case of anodized aluminum strip coils. Dans: IEEE 1st International Conference on Dielectrics (ICD), p. 983–986, Montpellier, France, 2016, ISBN: 9781509028023. @inproceedings{Babicz2016,
title = {Evaluation of the boron oxide healing performance in the case of anodized aluminum strip coils},
author = {Sylvain Babicz and Sonia Ait-Amar and Gabriel Velu},
url = {http://ieeexplore.ieee.org/document/7547782/},
doi = {10.1109/ICD.2016.7547782},
isbn = {9781509028023},
year = {2016},
date = {2016-07-01},
booktitle = {IEEE 1st International Conference on Dielectrics (ICD)},
volume = {2},
pages = {983--986},
address = {Montpellier, France},
abstract = {A research topic is more and more subject of interest in electrical engineering: the development of electric machines that can withstand high temperature as high as 400 °C. A proposed solution is the use of anodized aluminum strip which insulation is from the family of ceramics. This insulation layer has a good resistance to this range of temperature as its melting point is around 2000 °C. Microscopic observations of this strip revealed cracks of the alumina layer on the edge: coils made with this strip show a premature breakdown. The purpose of this paper is to determine the efficiency of boron oxide deposited on coil edges to improve breakdown voltage level.},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
A research topic is more and more subject of interest in electrical engineering: the development of electric machines that can withstand high temperature as high as 400 °C. A proposed solution is the use of anodized aluminum strip which insulation is from the family of ceramics. This insulation layer has a good resistance to this range of temperature as its melting point is around 2000 °C. Microscopic observations of this strip revealed cracks of the alumina layer on the edge: coils made with this strip show a premature breakdown. The purpose of this paper is to determine the efficiency of boron oxide deposited on coil edges to improve breakdown voltage level. |
12. | Babicz, Sylvain; Ait-Amar, Sonia; Velu, Gabriel: Etude d'un isolant plat anodisé pour la conception de machines électriques alimentées en MLI. Dans: Journées couplées SEEDS / Jeunes Chercheurs en Génie Électrique, Laval, France, 2016. @inproceedings{Babicz2016a,
title = {Etude d'un isolant plat anodisé pour la conception de machines électriques alimentées en MLI},
author = {Sylvain Babicz and Sonia Ait-Amar and Gabriel Velu},
year = {2016},
date = {2016-03-01},
booktitle = {Journées couplées SEEDS / Jeunes Chercheurs en Génie Électrique},
address = {Laval, France},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
|
2015
|
10. | Babicz, Sylvain; Ait-Amar, Sonia; Velu, Gabriel: Optimized method for winding a coil with anodized aluminum tape. Dans: XVII International Symposium on Electromagnetic Fields (ISEF), Valencia, Spain, 2015. @inproceedings{Babicz2015,
title = {Optimized method for winding a coil with anodized aluminum tape},
author = {Sylvain Babicz and Sonia Ait-Amar and Gabriel Velu},
year = {2015},
date = {2015-09-01},
booktitle = {XVII International Symposium on Electromagnetic Fields (ISEF)},
address = {Valencia, Spain},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
|
2014
|
8. | Babicz, Sylvain; Ait-Amar, Sonia; Velu, Gabriel: Preliminary study of using anodized aluminum strip for electrical motor windings. Dans: IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP 2014), p. 176–179, Des Moines, IA, USA, 2014, ISBN: 978-1-4799-7525-9. @inproceedings{Babicz2014a,
title = {Preliminary study of using anodized aluminum strip for electrical motor windings},
author = {Sylvain Babicz and Sonia Ait-Amar and Gabriel Velu},
url = {https://ieeexplore.ieee.org/document/6995808/},
doi = {10.1109/CEIDP.2014.6995808},
isbn = {978-1-4799-7525-9},
year = {2014},
date = {2014-10-01},
booktitle = {IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP 2014)},
pages = {176--179},
address = {Des Moines, IA, USA},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
|
7. | Cozonac, Dorin; Babicz, Sylvain; Ait-Amar, Sonia; Velu, Gabriel; Cavallini, Andréa; Wang, Peng: Study on ceramic insulation wires for motor windings at high-temperature. Dans: IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP 2014), p. 172–175, Des Moines, IA, USA, 2014, ISBN: 978-1-4799-7525-9. @inproceedings{Cozonac2014,
title = {Study on ceramic insulation wires for motor windings at high-temperature},
author = {Dorin Cozonac and Sylvain Babicz and Sonia Ait-Amar and Gabriel Velu and Andréa Cavallini and Peng Wang},
url = {http://ieeexplore.ieee.org/document/6995757/},
doi = {10.1109/CEIDP.2014.6995757},
isbn = {978-1-4799-7525-9},
year = {2014},
date = {2014-10-01},
booktitle = {IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP 2014)},
pages = {172--175},
address = {Des Moines, IA, USA},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
|
6. | Cozonac, Dorin; Lecointe, Jean-Philippe; Duchesne, Stéphane; Velu, Gabriel: Materials characterization and geometry of a high temperature induction machine. Dans: XXI International Conference on Electrical Machines (ICEM), p. 2499–2505, Berlin, Germany, 2014, ISBN: 978-1-4799-4389-0. @inproceedings{Cozonac2014a,
title = {Materials characterization and geometry of a high temperature induction machine},
author = {Dorin Cozonac and Jean-Philippe Lecointe and Stéphane Duchesne and Gabriel Velu},
url = {http://ieeexplore.ieee.org/document/6960538/},
doi = {10.1109/ICELMACH.2014.6960538},
isbn = {978-1-4799-4389-0},
year = {2014},
date = {2014-09-01},
booktitle = {XXI International Conference on Electrical Machines (ICEM)},
pages = {2499--2505},
address = {Berlin, Germany},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
|
5. | Velu, Gabriel; Duchesne, Stéphane; Boughanmi, Walid; Roger, Daniel; Napieralska, Ewa: Bobinage à faible impact environnemental. Dans: Symposium de Génie Électrique (SGE) : EF-EPF-MGE, Cachan, France, 2014. @inproceedings{Velu2014,
title = {Bobinage à faible impact environnemental},
author = {Gabriel Velu and Stéphane Duchesne and Walid Boughanmi and Daniel Roger and Ewa Napieralska},
year = {2014},
date = {2014-07-01},
booktitle = {Symposium de Génie Électrique (SGE) : EF-EPF-MGE},
address = {Cachan, France},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
|
4. | Duchesne, Stéphane; Moeneclaey, Julien; Velu, Gabriel; Roger, Daniel: Is thermo-bonded coils a good solution for electric machines fed by fast PWM inverters?. Dans: 32nd IEEE Electrical Insulation Conference (EIC), p. 425–429, Philadelphia, PA, USA, 2014, ISBN: 978-1-4799-2789-0. @inproceedings{Duchesne2014,
title = {Is thermo-bonded coils a good solution for electric machines fed by fast PWM inverters?},
author = {Stéphane Duchesne and Julien Moeneclaey and Gabriel Velu and Daniel Roger},
url = {http://ieeexplore.ieee.org/document/6869423/},
doi = {10.1109/EIC.2014.6869423},
isbn = {978-1-4799-2789-0},
year = {2014},
date = {2014-06-01},
booktitle = {32nd IEEE Electrical Insulation Conference (EIC)},
pages = {425--429},
address = {Philadelphia, PA, USA},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
|
3. | Iosif, Vadim; Roger, Daniel; Duchesne, Stéphane; Velu, Gabriel: Experimental characterization of the maximum turnto-turn voltage for inorganic high temperature motor. Dans: 32nd IEEE Electrical Insulation Conference (EIC), p. 69–73, Philadelphia, PA, USA, 2014, ISBN: 978-1-4799-2789-0. @inproceedings{Iosif2014,
title = {Experimental characterization of the maximum turnto-turn voltage for inorganic high temperature motor},
author = {Vadim Iosif and Daniel Roger and Stéphane Duchesne and Gabriel Velu},
url = {http://ieeexplore.ieee.org/document/6869349/},
doi = {10.1109/EIC.2014.6869349},
isbn = {978-1-4799-2789-0},
year = {2014},
date = {2014-06-01},
booktitle = {32nd IEEE Electrical Insulation Conference (EIC)},
pages = {69--73},
address = {Philadelphia, PA, USA},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
|
2. | Babicz, Sylvain; Ait-Amar, Sonia; Velu, Gabriel: Etude d'un conducteur en aluminium avec une isolation électrique sans solvants pour la conception de machines tournantes. Dans: CONférence Francophone sur l'Eco-conception en Génie Electrique (CONFREGE), Albi, France, 2014. @inproceedings{Babicz2014,
title = {Etude d'un conducteur en aluminium avec une isolation électrique sans solvants pour la conception de machines tournantes},
author = {Sylvain Babicz and Sonia Ait-Amar and Gabriel Velu},
year = {2014},
date = {2014-05-01},
booktitle = {CONférence Francophone sur l'Eco-conception en Génie Electrique (CONFREGE)},
address = {Albi, France},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
|
2013
|
1. | Cozonac, Dorin; Mihaila, Vasile; Velu, Gabriel; Duchesne, Stéphane; Lecointe, Jean-Philippe; Roger, Daniel: Performance comparision of winding wires for high-temperature rotating machines. Dans: 11th IEEE International Conference on Solid Dielectrics (ICSD), p. 318–321, Bologna, Italy, 2013, ISBN: 978-1-4673-4461-6. @inproceedings{Cozonac2013,
title = {Performance comparision of winding wires for high-temperature rotating machines},
author = {Dorin Cozonac and Vasile Mihaila and Gabriel Velu and Stéphane Duchesne and Jean-Philippe Lecointe and Daniel Roger},
url = {http://ieeexplore.ieee.org/document/6619771/},
doi = {10.1109/ICSD.2013.6619771},
isbn = {978-1-4673-4461-6},
year = {2013},
date = {2013-06-01},
booktitle = {11th IEEE International Conference on Solid Dielectrics (ICSD)},
pages = {318--321},
address = {Bologna, Italy},
keywords = {},
pubstate = {published},
tppubtype = {inproceedings}
}
|