Lookup NU author(s): Dr Nick Baker,
Dr Mehmet Kulan
This is the authors' accepted manuscript of an article that has been published in its final definitive form by IEEE, 2018.
For re-use rights please refer to the publisher's terms and conditions.
In this paper, a permanent magnet alternator which presently relies on magnetic slot wedges is redesigned to give lower iron loss. The new segmented stator design is used as the basis for a validated loss study – comparing bonded lamination stacks with those held together with a punched notch. Segmentation is shown to improve the production process, reduce losses and remove the need for wedges, whilst not significantly altering the acoustic performance. In the first series of prototypes, however, where notching is used to secure lamination packs, the process is shown to have adversely affected material properties of the nickel iron laminations and overall measured losses increased. In the second prototype, with thinner laminations and glued stacks, iron loss predictions and measurement agree and are less than the present slot wedge design.
Author(s): Baker NJ, Smith JB, Kulan MC, Turvey S
Publication type: Article
Publication status: Published
Journal: IEEE Transactions on Energy Conversion
Print publication date: 01/03/2018
Online publication date: 14/08/2017
Acceptance date: 08/08/2017
ISSN (print): 0885-8969
ISSN (electronic): 0885-8969
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