`
`the number of poi es and the number of slots is
`
`represeentidtniS]_, and vflnnivaryingcemponentscm m1(Sl/P)—thorder
`
`of the radial attraction force are separated inte cosine and sine
`
`for each of ”he tooth tip widths yl ans v2,
`
`tooth tip widths with
`
`which absolute 'values of cosine and sine are minimized. are
`
`(D 7'] ”j (T)
`l.\/
`represented by 51 and. 5 r Ctr..vely; an eleJtrical anqle of the
`
`.1.
`tooth tip widths 51 and 52 thaw
`
`i..|..
`
`s smaller than the pele arc angle
`
`oteeaufliperman-ntimmgzi-t13 is
`1
`
`H
`
`4.
`..
`enr->s->ntedb szmin, andenielectrinal
`
`angle of the tooth tip widths 51 ant 52 that is larier than the
`
`G: U) (I) H..1
`*U
`pole;arc angle is re r
`
`-j by Amax, {tooth tip width yi)<Amin,
`
`and Amax<€tooth
`
`tip width v2).
`
`[0044]
`
`Further, when magnitudes of change amounts of
`
`the
`
`(Sl/P)~th order of racial attraction force of cosine or sine oi
`
`tie varying components of
`
`the
`
`(Si/L}—th order of
`
`the radial
`
`attraction ferée generated by all teeth 4
`
`that is larger in change
`
`amourt when the tooth tip width is varied are represented by Fvl
`
`and "sz, the portion of vi and the portion.of y2 are stacked such
`
`that t.hicknes see of the porti-on of v1 aha the portion of Y2 in a
`
`shaft length tirect.ion. have a ratio oi
`
`
`
`Iv2§z§
`
`
`
`[0045]
`
`FIG.
`
`9 is a graph for sheWwing relatiorship between
`P
`
`H;
`the teeth tip width and the 6f compenent of the averige value oi
`
`l-‘4H ([3
`
`t
`
`attra3tic
`
`1-1
`
`1 force of the teeth 4 whan the pole arc angle B oi
`
`eaach permanent magn3t 13 of the rotary electric machine according
`
`tr>Emhediment22is 128.1”, andifisohta inedkg/adeitionall3'demp. cti
`
`...,_J O."__1
`
`values of the electrical angles 65“
`
`{v1} and 95“
`
`{v2}
`
`in FIG. 4.
`
`
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