Trial production and experiment of linear actuator with double-sided primary and HTS bulk secondary

Shungo Sadakata, Hiroshi Ueda, Makoto Tsuda, Atsushi Ishiyama

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

It is expected that HTS bulk materials are applied to various electric devices. In a previous work we have fabricated and tested a linear actuator with single-sided primary and HTS bulk secondary. The linear actuator was comprised of zero-field-cooled YBCO bulk for secondary (mover) and copper windings with iron core (primary). The primary was excited by a three-phase VVVF power source to provide sinusoidal traveling field. To improve the characteristics of the linear actuator, we newly designed and fabricated a linear actuator with double-sided primary and zero-field-cooled HTS bulk secondary. We measured starting thrust force and magnetic field distribution in the air gap between the bulk and the primary iron core at the stationary state. To evaluate dynamic characteristics of the linear actuator, we numerically investigated electromagnetic behavior within the bulk exposed to time-varying magnetic field using a simulation program based on the finite element method (FEM) taking the voltage-current (E-J) characteristic into consideration. Computed starting thrust force, displacement characteristic and field distribution between the bulk and the primary iron core were compared with the experimental results. Agreement between experiments and analyses was good. We also investigated the electromagnetic characteristics as a linear synchronous actuator with double-sided primary and field-cooled HTS bulk secondary.

Original languageEnglish
Pages (from-to)824-827
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume12
Issue number1
DOIs
Publication statusPublished - Mar 2002
Externally publishedYes

Fingerprint

Linear actuators
actuators
Iron
Experiments
iron
thrust
Magnetic fields
electromagnetism
Copper
magnetic fields
Actuators
dynamic characteristics
field theory (physics)
finite element method
Finite element method
Electric potential
copper
Air
air
electric potential

Keywords

  • Finite element method
  • Linear actuator
  • Superconducting bulk

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Physics and Astronomy (miscellaneous)

Cite this

Trial production and experiment of linear actuator with double-sided primary and HTS bulk secondary. / Sadakata, Shungo; Ueda, Hiroshi; Tsuda, Makoto; Ishiyama, Atsushi.

In: IEEE Transactions on Applied Superconductivity, Vol. 12, No. 1, 03.2002, p. 824-827.

Research output: Contribution to journalArticle

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