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Theses

Services au système et gestion d'interactions énergétiques transitoires dans un parc éolien offshore

Abstract : The massive integration of intermittent production of wind energy in electrical networks creates an electrical system stability problem. Indeed, its characteristics are very different from those of conventional sources controlled by Grid managers. Therefore, the injection of this energy makes new challenges for power Grid operators. Moreover, the connection conditions are evolving and go towards the situations that all different sources participate into services of electrical systems. This thesis proposes a new nonlinear control strategy based on a « one loop flatness control » of a wind energy conversion system. This control strategy has aim of energy interactions management at the connection point through generation and tracking of reference trajectories. As all system variables are functions of the « flat output » of the system, this control provides fast response and good control in transient state. The application of this new control strategy into an offshore wind farm which is able to satisfy different connection conditions was simulated successfully. Specifically, effects of various grid faults on the proposed ancillary services (frequency and voltage regulation, and low-voltage ride through capabilities) were performed.
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  • HAL Id : tel-01668537, version 1

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Merzak Aimene. Services au système et gestion d'interactions énergétiques transitoires dans un parc éolien offshore. Energie électrique. Université du Havre, 2016. Français. ⟨NNT : 2016LEHA0020⟩. ⟨tel-01668537⟩

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