Modélisation, commande, stabilité et mise en oeuvre des onduleurs à source impédante : application aux systèmes embarqués

Abstract : Over the past ten years, hydraulic and thermal technologies tend to make room for electrical system. Fields related to transportation (automotive, avionics, railway or naval) are directly impacted. The interest and dynamism in power electronics Research are justified by the impact of such a field in the development of embedded systems. This thesis focuses on the study of impedance-source inverters as possible topologies to replace conventional ones. Several studies are conducted according to different criteria and do not aim at only comparing the topologies. It proposes solutions and improvements in the control system as well as in its basis architecture. These studies are all applied to an electric traction system composed of an synchronous machine fed by an impedance-source inverter. It is showed that large interests come out of the obtained results. For instance, the cancellation of the high-frequency current ripples allows mastering the quality of the battery current. Moreover, some constraints as regards machine ageing can be reduced by mastering the slew rates dv/dt. Some drawbacks are nevertheless pointed out. There is no need in using such a topology to improve efficiency that is above the same as conventional structures. Moreover, controls of DC-side AC-side of the system are dependent due to the fact that inverter’s control is used to step up the DC-bus voltage
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Alexandre Battiston. Modélisation, commande, stabilité et mise en oeuvre des onduleurs à source impédante : application aux systèmes embarqués. Autre. Université de Lorraine, 2014. Français. ⟨NNT : 2014LORR0357⟩. ⟨tel-01751706⟩

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