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Modélisation analytique tridimensionnelle de nouvelles structures de génératrices électriques destinées à l'éolien de forte puissance

Abstract : This subject of the thesis is part of a priority research theme developed by the GREAH laboratory on the optimization of the energy efficiency of electrical energy management and production systems. In this context, the performance of energy converters (electrical machines for the conversion of electromechanical energy) have a decisive impact on the energy efficiency of the conversion and on the quality of electrical energy management in terms of efficiency, reduction of emissions, reduction of costs, which therefore requires a special effort to design. The main objective of this thesis is to develop a light model allowing to exploit fairly quickly the space of potentially optimal solutions in the first phase of machine design. The work presented in this thesis focuses on electromagnetic modeling for the pre-design of permanent magnets synchronous machines integrated into high power wind turbines. In this manuscript, two modeling approaches of electric machines have been proposed. The presented reluctance network modeling is generated from the mesh of studied domain as the finite element method. Reluctance elements are used for the mesh. The proposed hybrid analytical modeling is based on a strong coupling between a reluctances network generated from a mesh of the study domain and analytical models based on the formal solution of Maxwell’s equations in regions of low permeability (magnetic gap). This approach can help solve the problem of air-gap modeling in MEC method, and the consideration of the local magnetic saturation in modeling approaches involving analytical technique. The results obtained from these models are validated by the corresponding results from the finite element method and very good has been observed. To indicate the gain obtained in time, the execution times of the programs are compared to the times set by the Flux software.
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Submitted on : Tuesday, October 23, 2018 - 5:49:08 PM
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Abdourahman Aden Diriye. Modélisation analytique tridimensionnelle de nouvelles structures de génératrices électriques destinées à l'éolien de forte puissance. Energie électrique. Normandie Université, 2018. Français. ⟨NNT : 2018NORMLH13⟩. ⟨tel-01902759⟩

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