Effect of HTS stack sectioning on pulse magnetization efficiency in a motor


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Authors
Smara, A 
Climante-Alarcon, V 
Mineev, N 
Glowski, BA 
Abstract

jats:titleAbstract</jats:title> jats:pStacks of HTS superconductors can be magnetized and used as a surface mounted magnet for electrical machines. Pulse field magnetization is considered as a practical method; however, the amplitude of the pulse can be limited in an electrical motor which results in an under-saturated stack with the superconducting currents penetrating only a part of it making the magnetization less efficient. A solution to this problem could be sectioning the stack along its width enabling effective penetration of the superconducting currents. In this paper we investigate the effect of sectioning of HTS surface mounted stacks on the efficiency of pulse magnetization method in trapping the flux using low pulsing field. It is shown that the sectioning of wide stacks into several narrower parts results in a higher trapped flux at low pulses. Experimental measurements are performed on a lab-scale motor to validate the theoretical analysis.</jats:p>

Description
Keywords
51 Physical Sciences
Journal Title
Journal of Physics: Conference Series
Conference Name
Journal ISSN
1742-6588
1742-6596
Volume Title
1559
Publisher
IOP Publishing
Sponsorship
Engineering and Physical Sciences Research Council (EP/P000738/1)