Open AccessField loss calculation of a wind‐powered axial flux alternator by analytical equations
Author(s) -
Otuoze Abdulrahaman Okino,
Mohammed Olatunji Obalowu,
Ibrahim Oladimeji,
Salisu Sani,
Emmanuel Abioye Abiodun,
Usman Ayinde Mohammed,
Dobi Abdulhakeem Mohd
Publication year - 2021
Publication title -
engineering reports
Language(s) - English
Resource type - Journals
ISSN - 2577-8196
DOI - 10.1002/eng2.12391
Subject(s) - alternator , magnet , resistive touchscreen , core (optical fiber) , minification , work (physics) , flux (metallurgy) , power (physics) , magnetic field , magnetic flux , mechanics , computer science , mechanical engineering , control theory (sociology) , engineering , mathematical optimization , mathematics , electrical engineering , materials science , physics , thermodynamics , telecommunications , control (management) , quantum mechanics , artificial intelligence , metallurgy
Abstract Various techniques have been investigated and proposed for core loss minimization in electrical machines. Nevertheless, many of such methods are mostly complicated and not suitable for consideration at a preliminary design stage. In this work, a simplified procedure which uses an analytical approach to minimizing the field's losses of an Axial Flux Permanent Magnet Alternator (AFPMA), is presented. First, the output equation of an AFPMA is referred, and then the minimization of the losses is investigated by analytical differential equations. The result of the derived‐specific magnetic loading is investigated using three different core materials, namely 35RM300, 50JN350, and 65JN800, and is found to reduce with increased frequencies. The 35RM300 core material gives the maximum specific magnetic loading and minimum power loss at investigated frequencies of 50 to 500 Hz. Although the 35RM300 core material gives the best performance, the optimal values are only determined as suitable by the manufacturer's design criteria. This study is a key indicator for a simple and efficient core material selection in the design of a Wind‐Powered AFPMA without the need for complicated analyses at the preliminary design stage.