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Artykuły w czasopismach na temat "Moteurs électriques – Environnement"
Nguyen, Manh Quan, David Malec, Dominique Mary, Damien Prunel i Julie Orgelet. "Bilan environnemental et performances diélectriques d’isolants électriques de moteurs imprégnés". European Journal of Electrical Engineering 15, nr 5 (30.10.2012): 531–49. http://dx.doi.org/10.3166/ejee.15.531-549.
Pełny tekst źródłaRozprawy doktorskie na temat "Moteurs électriques – Environnement"
Boughanmi, Walid. "Eco-conception des motorisations électriques : Application à la machine asynchrone". Electronic Thesis or Diss., Artois, 2012. http://www.theses.fr/2012ARTO0207.
Pełny tekst źródłaApproximately 300 million of electric motors, with average power range from 0.75 kW to 300 kW, are used in industry, infrastructure and large buildings. In addition, 30 millions are renewed each year. In France, the electrical power consumed by these motors is about two-third of the electrical energy consumed in the industry. Thus, an improvement, even small, of the environmental performance of each motor would provide substantial environmental benefits. Contrary to the conventional approaches, the eco-design of an electrical machine can introduce environmental aspects during the design of the machine, taking into account all phases of the life cycle from the extraction of raw materials to the decommissioning and the recycling. This approach has been applied in this study to design an electrical motor, which has a better global energetic eco-balance. Therefore, a Life Cycle Analysis (LCA) tool is used; it takes into account several impact criteria to avoid pollution transfers from one criterion to another. A first "Green" prototype motor made with a high energetic eco-efficiency was fabricated and tested. The study was dictated by the need to minimize its global environmental impact by using materials more environmentally friendly, but also in order to increase its energy efficiency. The prototype is made with a grain oriented steel sheets, an enameled wire polymerized by UV and without solvents, some plastic based on biopolymers and with eco-energetic bearings. The eco-designed motor has a high energetic eco-efficiency; its performance is increased by about 3 % compared to the standard motor and without increasing its mass
Bertin, Yves. "Analyse des transferts de chaleur dans un moteur électrique asynchrone : développement d'un environnement CAO et modélisations thermoaérauliques". Poitiers, 1987. http://www.theses.fr/1987POIT2283.
Pełny tekst źródłaBoughanmi, Walid. "Eco-conception des motorisations électriques : Application à la machine asynchrone". Thesis, Artois, 2012. http://www.theses.fr/2012ARTO0207/document.
Pełny tekst źródłaApproximately 300 million of electric motors, with average power range from 0.75 kW to 300 kW, are used in industry, infrastructure and large buildings. In addition, 30 millions are renewed each year. In France, the electrical power consumed by these motors is about two-third of the electrical energy consumed in the industry. Thus, an improvement, even small, of the environmental performance of each motor would provide substantial environmental benefits. Contrary to the conventional approaches, the eco-design of an electrical machine can introduce environmental aspects during the design of the machine, taking into account all phases of the life cycle from the extraction of raw materials to the decommissioning and the recycling. This approach has been applied in this study to design an electrical motor, which has a better global energetic eco-balance. Therefore, a Life Cycle Analysis (LCA) tool is used; it takes into account several impact criteria to avoid pollution transfers from one criterion to another. A first "Green" prototype motor made with a high energetic eco-efficiency was fabricated and tested. The study was dictated by the need to minimize its global environmental impact by using materials more environmentally friendly, but also in order to increase its energy efficiency. The prototype is made with a grain oriented steel sheets, an enameled wire polymerized by UV and without solvents, some plastic based on biopolymers and with eco-energetic bearings. The eco-designed motor has a high energetic eco-efficiency; its performance is increased by about 3 % compared to the standard motor and without increasing its mass
Kouadio, Léopold Kouadio. "Assistance d'un moteur thermique d'automobile par une machine synchrone autopilotée : amélioration de la gestion énergétique et réduction des polluants du groupe moto-propulseur". Toulouse 3, 1996. http://www.theses.fr/1996TOU30259.
Pełny tekst źródłaPoline, Marie. "Contribution aux méthodes de conception et de gestion des systèmes énergétiques multi-sources par optimisation systémique : application aux trains hybrides électrique autonomes". Electronic Thesis or Diss., Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAT099.
Pełny tekst źródłaIn France, there are two traction modes for railway: the diesel and electric traction. Each mode has its own issues. For diesel, the increasing control of the greenhouse gas emissions imposes to evolve this type of train to a less polluting solution. For electric traction, the energy consumption creates a voltage drop which can cause a traffic slowdown, which will limit the traffic development. The studied solution by SNCF is the hybridization of the train (adding storage system).Thus, these works have the objective to build a method to do the pre-sizing of storage systems embedded in trains. Moreover, to take into account the mutual influence of the sizing and the energy management, this last one is included in the sizing model. An optimization algorithm solves the global model.The method has been developed for the two traction modes (diesel and electric) and the optimization has been made with SQP algorithm (Sequential Quadratic Programming)
Vu, Duc Tan. "Commande tolérante aux défauts des entraînements de machines synchrones à aimants permanents polyphasées non-sinusoïdales sous contraintes de courant et de tension pour les applications automobiles". Electronic Thesis or Diss., Paris, HESAM, 2020. http://www.theses.fr/2020HESAE040.
Pełny tekst źródłaElectric drives for electrified vehicles need to fulfil some specific requirements from automotive markets such as high efficiency, high volume power and torque densities, low-cost but safe-to-touch, high functional reliability, high torque quality, and flux-weakening control. In this context, multiphase permanent magnet synchronous machine (PMSM) drives have become suitable candidates to meet the above requirements. The main objective of this doctoral thesis is to propose and refine fault-tolerant control strategies for non-sinusoidal multiphase PMSM drives that require less constraints on their design. In addition, constraints on current and voltage defined by the inverter and the machine are considered to optimize the machine control under the non-sinusoidal condition without exceeding their allowable limits. Therefore, the system sizing is guaranteed, especially in flux-weakening operations. The proposed fault-tolerant control strategies, based on the mathematical model of multiphase drives, enrich the control field of multiphase drives by providing various control options. The selection of one of the proposed control options can be a trade-off between a high quality torque but a low average value and a high average torque but a relatively high ripple. The control and torque performances of the drives can be refined by using artificial intelligence with a simple type of artificial neural networks named ADALINE (ADAptive LInear NEuron). With self-learning ability, fast convergence, and simplicity, ADALINEs can be applied to industrial multiphase drives. All proposed control strategies in this doctoral thesis are validated with an experimental seven-phase PMSM drive. The non-sinusoidal back electromotive force (back-EMF) of the experimental seven-phase PMSM is complex with the presence of multi-harmonics. Experimental results verify the effectiveness of the proposed strategies, and their applicability in a multiphase machine with a complex non-sinusoidal back-EMF
Poline, Marie. "Contribution aux méthodes de conception et de gestion des systèmes énergétiques multi-sources par optimisation systémique : application aux trains hybrides électrique autonomes". Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAT099/document.
Pełny tekst źródłaIn France, there are two traction modes for railway: the diesel and electric traction. Each mode has its own issues. For diesel, the increasing control of the greenhouse gas emissions imposes to evolve this type of train to a less polluting solution. For electric traction, the energy consumption creates a voltage drop which can cause a traffic slowdown, which will limit the traffic development. The studied solution by SNCF is the hybridization of the train (adding storage system).Thus, these works have the objective to build a method to do the pre-sizing of storage systems embedded in trains. Moreover, to take into account the mutual influence of the sizing and the energy management, this last one is included in the sizing model. An optimization algorithm solves the global model.The method has been developed for the two traction modes (diesel and electric) and the optimization has been made with SQP algorithm (Sequential Quadratic Programming)
Laruelle, Sandrine. "Etude du comportement thermique d'un motoréducteur". Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEI061/document.
Pełny tekst źródłaEnvironmental concern leads to improvements in both efficiency and power density of electrical motors. For compact transmissions, thermal issues can become critical: the surface available for thermal exchange with the environment is reduced, minimizing the possibility to cool down the elements. To ensure the system reliability, the operating temperature for each operating condition must not exceed the required maximum oil temperature. In order to evaluate its thermal behavior, the whole system should be therefore evaluated in terms of power losses and heat transfer. This PhD proposes a thermal model of an existing oil bath lubricated gear unit with spiral bevel gears. The thermal model uses the thermal network method, which needs an accurate prediction of power losses of the different elements and heat transfer between them. A review of the existing methods is presented. Since the churning losses of spiral bevel gears has never been fully characterized, specific tests have been done on a dedicated test bench. The last part of this work suggests possible improvements on the gearbox design