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Adaptive Nonlinear Excitation Control of Synchronous Generators with Unknown Mechanical Power

Abstract : A nonlinear adaptive excitation control is designed for a synchronous generator modeled by a standard third order model on the basis of the physically available measurements of relative angular speed, active electric power and terminal voltage. The power angle, which is a crucial variable for the excitation control, is not assumed to be available for feedback. The feedback control is supposed to achieve transient stabilization and voltage regulation when faults occur to the turbines so that the mechanical power may permanently take any (unknown) value within its physical bounds. Transient stabilization and voltage regulation are achieved by a nonlinear adaptive controller, which generates both converging estimates of the mechanical power and the new equilibrium point compatible with the required terminal voltage.
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https://hal.archives-ouvertes.fr/hal-02936805
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Riccardo Marino, G. Damm, Françoise Lamnabhi-Lagarrigue. Adaptive Nonlinear Excitation Control of Synchronous Generators with Unknown Mechanical Power. Nonlinear Control in the Year 2000, 2000, 978-1-85233-364-5. ⟨hal-02936805⟩

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