Modeling and comparison of superconducting linear actuators for highly dynamic motion

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Abstract

This paper presents a numerical modeling method for AC losses in highly dynamic linear actuators with high temperature superconducting (HTS) tapes. The AC losses and generated force of two actuators, with different placement of the cryostats, are compared. In these actuators, the main loss component in the superconducting tapes are hysteresis losses, which result from both the non-sinusoidal phase currents and movement of the permanent magnets. The modeling method, based on the H-formulation of the magnetic fields, takes into account permanent magnetization and movement of permanent magnets. Calculated losses as function of the peak phase current of both superconducting actuators are compared to those of an equivalent non-cryogenic actuator.
Original languageEnglish
Pages (from-to)559-570
Number of pages12
JournalArchives of Electrical Engineering
Volume64
Issue number4
DOIs
Publication statusPublished - 5 Dec 2015

Keywords

  • linear motors
  • loss calculation
  • high-temperature superconductors
  • HTS

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