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SUMMARY:Torque Maximization Method of Radial Magnetized Surface-Mounted PM
Machine Having Sinusoidal Shaped Pole
DTSTART;VALUE=DATE-TIME:20170831T114500Z
DTEND;VALUE=DATE-TIME:20170831T133000Z
DTSTAMP;VALUE=DATE-TIME:20210624T165300Z
UID:indico-contribution-2562837@indico.cern.ch
DESCRIPTION:Speakers: yang shen (Naval University of Engineering)\, shuang
jiang zhuang (Naval University of Engineering)\nThis paper presents a torq
ue maximization method to increase output torque without deteriorating the
torque ripple in radial magnetized surface-mounted permanent magnet (SPM)
machine having sinusoidal shaped pole by using third-order harmonic (Sine
+3rd) shaping method. The optimal value of third-order harmonic injected i
nto sinusoidal shaping can be either scanned out by finite element analysi
s (FEA) or determined analytically. In accordance with the profile of SPM\
, it can be classified into SPM with arc magnet and SPM with “bread-loaf
” magnet. For all slot/pole combinations of SPM machine with radial magn
etized arc magnet\, it is already found that the optimal value of third or
der harmonic injected into sinusoidal shaping is fixed and equal to 1/6 of
the fundamental one. However\, such optimal value is varied with pole pai
r number (p)\, magnet thickness and rotor radius for machine having radial
magnetized “bread-loaf” magnet. Therefore\, the developed Sine+3rd sh
aping method is not accurate enough and invalid for SPM machine having “
bread-loaf” magnet pole. In this paper\, an analytical model to obtain t
he optimal value of third-order harmonic injected into radial magnetized S
PM machine with sinusoidal shaped “bread-loaf” magnet is derived to ac
hieve maximum torque without deteriorating torque ripple. The accuracy of
developed analytical model is verified by FEA. The analysis reveals that t
he value of fundamental air-gap flux density for SPM machine having Sine+3
rd magnet pole is increased more than 10% in contrast to SPM having sinuso
idal shaped pole only.\nhttps://indico.cern.ch/event/445667/contributions/
2562837/
LOCATION:Posters Area
RELATED-TO:indico-event-445667@indico.cern.ch
URL:https://indico.cern.ch/event/445667/contributions/2562837/
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