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Commande d'un système de conversion de type VSC-HVDC. Stabilité - Contrôle des perturbations.

Abstract : Nowadays, High Voltage Direct Current (HVDC) systems are increasingly considered
for power transmission and Voltage Source Converters (VSC) can offer additional degrees
of freedom, of particular interest in the control design.
In our study, the control laws are achieved in discrete-time and input-output linearisation principle
is applied. They aim at stabilizing the transmitted power, regulating the DC bus voltage,
and achieving the highest source and load power factors.
In order to implement the control laws, we develop an observer-based control approach. As
geographically the power source and the load are located at each end of a transmission line,
the observation ultimate goal is to decentralize control laws. This decentralization implies some
assumptions on these two elements behavior. They are an object of a detailed study.
Thus, in this thesis, we develop a control methodology which is systematic for all VSC-HVDC
systems.
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Submitted on : Tuesday, August 28, 2007 - 10:50:47 AM
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Laurent Teppoz. Commande d'un système de conversion de type VSC-HVDC. Stabilité - Contrôle des perturbations.. Automatique / Robotique. Institut National Polytechnique de Grenoble - INPG, 2005. Français. ⟨tel-00168414⟩

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