eprintid: 17025 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/01/70/25 datestamp: 2023-12-19 03:23:29 lastmod: 2023-12-19 03:23:29 status_changed: 2023-12-19 03:07:19 type: article metadata_visibility: show creators_name: Abd Ghani, N.S. creators_name: Ibrahim, T. creators_name: Nor, N.M. title: Refine design parameters for permanent magnet shape modification of the direct-drive generator ispublished: pub note: cited By 0 abstract: The high cost associated with operation has promoted the progress of wave energy conversion and has higher power output and larger size. However, many countries are bordered by the sea, and the possible area for using wave energy is very small which can generate peak power generation systems with a power output of less than 100 W. The purpose of this article is to introduce the refined parameters of new design of the permanent magnet shape of with tubular longitudinal direct-drive generator. Three designs proposed, which different shapes of permanent magnets with same topology. The parameter optimization process was analysed using finite element analysis to determine the best main parameters of the design, namely the length of the stator length to translation ratio (Ls/Lr), pitch ratio (Tmr/Tp.), and split ratio (Rm/Re). To evaluate design performance, electrical losses from the proposed design were also evaluated. The optimization results show these designs generator can produce 100 W of peak level output power with higher efficiency at rated current and optimal load. © 2022, Institute of Advanced Engineering and Science. All rights reserved. date: 2022 publisher: Institute of Advanced Engineering and Science official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85125177506&doi=10.11591%2fijpeds.v13.i1.pp132-138&partnerID=40&md5=cd68369267da85ae19b07e656ee08bd1 id_number: 10.11591/ijpeds.v13.i1.pp132-138 full_text_status: none publication: International Journal of Power Electronics and Drive Systems volume: 13 number: 1 pagerange: 132-138 refereed: TRUE issn: 20888694 citation: Abd Ghani, N.S. and Ibrahim, T. and Nor, N.M. (2022) Refine design parameters for permanent magnet shape modification of the direct-drive generator. International Journal of Power Electronics and Drive Systems, 13 (1). pp. 132-138. ISSN 20888694