Abstract
A compact axial-gap type maglev motor has been developed for use in pediatric ventricular assist devices (VADs). The developed maglev motor consists of a top stator, a bottom stator and an impeller which is magnetically levitated with 5-degrees of freedom posture control. The motor is 22 mm in outer diameter and 33.6 mm in total height. In this study, design change of stator windings and material change of stator core were investigated to improve motor energy efficiency due to reduction of electrical losses. Energy consumption of the improved maglev motor and magnetic suspension performance were evaluated. Increase in turn numbers of smaller diameter windings reduced the copper loss of the drive line cable due to reduction of required excitation current. Magnetic powder core material effectively reduced the eddy current loss. The energy consumption of the improved motor sufficiently decreased at design operating speed of the maglev pediatric VAD without deterioration of the magnetic suspension performance.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of the Japan Society of Applied Electromagnetics and Mechanics
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
