Conception d'alimentations de puissance d'actionneurs piézo-électriques, avec et sans contact électrique, pour la génération des vibrations mécaniques
type: Dataset
description: The works presented in this thesis deal with the power supply for piezoelectric actuators that will be placed on the rotating part of a drilling system. These actuators have a capacitive behavior and are usually supplied by linear systems. In this case, the design and the sizing of different switching amplifiers that provide, in a fixed frame, a sinusoidal power signal with modular frequency in the best possible conditions (efficiency and THD) have been made. Then, a contactless power system for piezoelectric actuators placed in a rotating frame was analyzed. This was possible thanks to the use of induction systems through a rotating transformer with an air gap. Three types of contactless systems were studied. The first one works at modular low frequencies [50-500 Hz] and the other two use resonant strategies in order to reduce transformer's size. For this, both magnetic and electrical modeling was performed in the three cases. A full-bridge inverter prototype that can deliver up to 680 VAR and a low frequency contactless energy transfer system of 1.75 kVAR that supplies the piezoelectric actuator at rotating frame have been made. Experimental results showed satisfactory results and proved the system feasibility.
landing page: https://theses.hal.science/tel-00875503
keyword: actionneur-piezo-electrique
keyword: alimentation-a-decoupage
keyword: coupleur-magnetique
keyword: electronique-de-puissance
keyword: filtre
keyword: infoeu-reposemanticsdoctoralthesis
keyword: spiengineering-sciences-physics
keyword: thd
keyword: theses
keyword: transfert-denergie-sans-contact
issued: 2026-05-09T07:10:00.692126
modified: 2026-05-09T07:10:00.692130
language: fr
contact point: Organization
  fn: CCSD

test_moissonnage_selune
type: Agent

Conception d'alimentations de puissance d'actionneurs piézo-électriques, avec et sans contact électrique, pour la génération des vibrations mécaniques
type: Distribution
format: HTML
access URL: https://theses.hal.science/tel-00875503
issued: 2026-05-09T07:10:00.698019
modified: 2026-05-09T07:10:00.672822