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Design and characterization of an induction clutchable transmission

Meessen, Brieuc ; Magerat, Tom
(2024)

Files

Magerat_54801900_Meessen_47061900_2024.pdf
  • UCLouvain restricted access
  • Adobe PDF
  • 8.05 MB

Details

Supervisors
Dehez, Bruno
Faculty
Ecole polytechnique de Louvain
Ecole polytechnique de Louvain
Degree label
Master [120] : ingénieur civil électromécanicien, à finalité spécialisée: mécatronique
Master [120] : ingénieur civil électromécanicien, à finalité spécialisée: énergie
Abstract
Flywheel energy storage system (FESS) offers an interesting electricity storage system. However, it raises several design challenges. This master's thesis, building on previous theoretical work from UCLouvain, reviews currently main known design challenges of a FESS containing ultra low friction active magnetic bearing. A method to assess the performances of those bearings is found and validate on a test bench. The performances of the bearings are represented as a friction torque that acts on the rotor's flywheel. The performances are determined using a decreasing speed test of the rotor. Then this work designs the ideal transmission system of the FESS which is required for a flywheel. This transmission system is an induction clutch. The global parameters of this induction clutch is its capability to accelerate rapidly to a desired speed and its torque variation at rotational speed equal to 0. The second parameter is essential to ensure the performances measurements are not biased. This requires an accurate control of the clutch. Various topologies of induction clutches are optimized to seek for the ideal topology with a view to the building of a prototype. Considering the two global parameters, an "advance inverse" topology is obtain. This topology is magnetically validate with a finite element model. In order to validate the induction clutch, the prototype is tested on a test bench composed of aerostatic bearings. The torque characteristics predicted by the finite element model fits the measurements, which validates the prototype. Finally, the friction due the control of the induction clutch is compared to the friction of the aerostatic bearings. A maximum error of 2.5 % on the friction torque measurement is observed for a torque measured of 0.001 [Nm]. The measurement method is thus proved.