Although the suppression of mechanical resonances for drive and positioning systems is a well-understood problem in the literature, its importance is still actual as technological developments push towards an increase in performance requirements. In this paper, the design of a notch filter is investigated with the aim of suppressing a single resonant frequency in SISO LTI two-mass drive systems. In the cases where the notch filter is located inside an existing control loop, as assumed in this work, it must not compromise the closed-loop stability of the system, while assuring desired control bandwidth and stability margins. Given a fixed known resonant frequency to suppress, an automatic algorithm is proposed to tune the notch filter parameters to guarantee specified control requirements and stability of the closed-loop system, so as to avoid, whenever possible, the reconfiguration of a preexisting controller.

(2024). Notch Filter Design with Stability Guarantees for Mechanical Resonance Suppression in SISO LTI Two-Mass Drive Systems . Retrieved from https://hdl.handle.net/10446/263053

Notch Filter Design with Stability Guarantees for Mechanical Resonance Suppression in SISO LTI Two-Mass Drive Systems

Sonzogni, Giulia;Mazzoleni, Mirko;Polver, Marco;Ferramosca, Antonio;Previdi, Fabio
2024-01-01

Abstract

Although the suppression of mechanical resonances for drive and positioning systems is a well-understood problem in the literature, its importance is still actual as technological developments push towards an increase in performance requirements. In this paper, the design of a notch filter is investigated with the aim of suppressing a single resonant frequency in SISO LTI two-mass drive systems. In the cases where the notch filter is located inside an existing control loop, as assumed in this work, it must not compromise the closed-loop stability of the system, while assuring desired control bandwidth and stability margins. Given a fixed known resonant frequency to suppress, an automatic algorithm is proposed to tune the notch filter parameters to guarantee specified control requirements and stability of the closed-loop system, so as to avoid, whenever possible, the reconfiguration of a preexisting controller.
2024
Sonzogni, Giulia; Mazzoleni, Mirko; Polver, Marco; Ferramosca, Antonio; Previdi, Fabio
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10446/263053
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