Archive | REF: R7432 V1

Robust frequency control - Application to magnetic bearings

Authors: Stéphane FONT, Gilles DUC, François CARRÈRE

Publication date: June 10, 1997 | Lire en français

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    4. Discrete-time synthesis

    To obtain a digital corrector, a procedure similar to that developed in the previous paragraphs was followed, considering an "equivalent" continuous-time problem obtained by means of the w-transform : this has the property of projecting the imaginary axis Re (p ) = 0 onto the unit circle Íz Í = 1, which preserves closed-loop stability and the norm H , and this for any value of the sampling period T e .

    The latter was chosen to be equal to...

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