PWM Modeling for Attitude Control of a Launcher During Ballistic Phase and Comparative Stability Analysis

Autor: Carsten W. Scherer, Julien Chaudenson, Dominique Beauvois, C. Frechin, Samir Bennani, Martine Ganet-Schoeller, Guillaume Sandou
Přispěvatelé: Supélec Sciences des Systèmes (E3S), Ecole Supérieure d'Electricité - SUPELEC (FRANCE), Astrium Space Transportation (AST), ASTRIUM, University of Stuttgart
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: ROCOND'12
ROCOND'12, Jun 2012, Aalborg, Denmark. pp.CD-Rom, ⟨10.3182/20120620-3-DK-2025.00109⟩
ROCOND
DOI: 10.3182/20120620-3-DK-2025.00109⟩
Popis: International audience; The present paper exposes a novel description of the effect of a pulse generator on a double integrator representing one axis of rotation for a space vehicle. By considering the difference between the angular velocity obtained with zero-order-hold (ZOH) actuator and the one with a PWM actuator, a perturbation operator expressing the influence of the PWM on the angular speed is defined. Using this configuration in a linear fractional representation (LFR), a stability analysis allows comparing LMI-based and IQC-based stability results for a one degree of freedom rotating body with uncertain PWM and saturation and permits dwelling on improvements to make for further analyses.
Databáze: OpenAIRE