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Modélisation par techniques harmoniques pour la commande et le filtrage actif de systèmes commutés associés appliquée à l’actionnement électrique

Abstract : The main objective of this industrial PhD thesis is to contribute to the control of frequency phenomena within electrical networks. Systems are more and more complex and tend to generate harmonics and high dynamics. Their interconnection may be at the origin of resonance and harmonic pollution phenomena that are currently poorly contained, as well as harmonic instabilities. The selected approach consists in applying innovative harmonic modeling techniques. We define a formal framework in which the notions make sense and we propose a comprehensive methodology that unifies the literature approaches. The unified harmonic model describes the systems’ harmonic dynamics and couplings. Access to this knowledge paves the way for an improved control. Two suitable control schemes are proposed and we identify the conditions when synthesizing the harmonic controller. In addition, some tools for harmonic stability evaluation and optimal stabilizing control are presented. This new framework allows developing some control laws in the harmonic domain to control frequency phenomena. Finally, the doctoral work leads to the formal definition of a unified and comprehensive methodology for harmonic modeling and control of interconnected dynamic systems. The strategy is validated through simulations to model, analyze and control power converters, then in practice to an electrical drive chain for an aircraft engine.
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https://hal.univ-lorraine.fr/tel-03230318
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Submitted on : Wednesday, May 19, 2021 - 5:15:33 PM
Last modification on : Thursday, May 20, 2021 - 3:22:58 AM

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  • HAL Id : tel-03230318, version 1

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Nicolas Blin. Modélisation par techniques harmoniques pour la commande et le filtrage actif de systèmes commutés associés appliquée à l’actionnement électrique. Automatique / Robotique. Université de Lorraine, 2021. Français. ⟨NNT : 2021LORR0058⟩. ⟨tel-03230318⟩

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