电机设计计算公式

,相数,m1,1,,,,

,频率,f,50,Hz,,,

1,额定功率,Pn,0.75,kW,,,

2,,UnΦ,127,V,,,

,额定电压,Un,220,V,,,

3,功电流,Ikw,5.904718664,A,,,

4,效率,η',71.00%,,,,

5,功率因数,cosφ',0.92,,,,

6,极对数,p,4,,,,

7,每极每相槽数,q1,1,,,,

,定子槽数,Z1,24,,,,

,转子槽数,Z2,24,,,根据Z1查表,

8,定子每极槽数,Zp1,3,,,,

,转子每极槽数,Zp2,3,,,,

9,计算功率,P',1061.113133,VA,,,

,满载电势标幺值,KE’,0.924158798,,,,

,极弧系数,аp',0.658,,,自选,1

,,Knm',1.1,,,自选,1

,,Kdp1',0.7071,,,自选,

,线负荷,A’,56000,A/m,,,1

,气隙磁密,Bδ’,0.77,T,,,

,转速,n’,1487,r/min,,,

,体积,V,0.000197241,m3,,,

,主要尺寸比,λ,1.8,,,根据p查表,1

,定子铁心内径,Di1’,0.065,m,,,

,定子冲片内外径比,Di1/D1,0.644,,,查表,

,定子冲片外径,D1’,0.10146963,m,,,

,标准直径确定,D1,0.8,m,,查标准,

,定子铁心内径,Di1,0.515,m,,,515

,径向通风道数,nK,9,,,,

,径向通风道宽度,bK1,0.010,m,,,550

,铁心长度,li,0.67,m,,按生产要求，采用5mm进位,

,铁心有效长,lef,0.58,m,,,

,净铁心长,lFe,0.551,,,,

10,气隙,δ,0.00210,m,,,经验公式不适用

,转子铁心有效长度,lef,0.55520,m,,,

,转子外径,D2,0.51100,m,,,

,转子内径,Di2,0.26,m,,先按转轴直径决定,

11,极距,τ,0.20232,m,,,

12,定子齿距,t1,0.06744,m,,,

,转子齿距,t2,0.06689,m,,,

13,节距,,12.5,,,,

14,斜槽宽,bsk,0.06744,m,,斜一个定子齿距t1,

15,每相串联导体数,Nφ1’,10027,,,,

,并联支路数,a1,2,,,自取,

,每槽导体数,Ns1’,836,,,,1

16,每相串联导体数,Nφ1,10027,,,,

,每相串联匝数,N1,5013,,,,

17,初选定子电密,J1',6,A/mm2,,查表,

,定子电流初步估计值,I1’,9.04,A,,,

,导线并绕根数与每根导线截面积乘积,Nt1*Ae1’,0.75,mm2,,,

,并绕根数,Nt1,2,,,根据铜线规格表自选,

,铜线高,A,1.25,mm,,,

,铜线宽,B,4,mm,,根据铜线规格表自选,

,,,,,,,,

,截面积,Ae1’,4.785,mm2,,根据铜线规格表自选,

,,Nt1*Ae1’,9.57,mm2,,,

18,槽形,,平行开口槽,,,,

,,HS,48,mm,,,

,,BS,16,mm,,,

,,BS0,16,mm,,,

,,HS0,1,mm,,,

,,HS1,4,mm,,,

,定子轭磁密,Bj1',1.55,T,,初选,

,定子齿磁密,Bi1',1.54,T,,初选,

,定子轭部计算高估算,hj1’,0.034807037,,,,

,齿宽,bi1,0.03549,m,,,

19,槽绝缘形式,,DMDM,,,,

,绝缘总厚度,Δi,0.5,mm,,根据绝缘形式查表,

,槽锲层压板厚度,h,4,mm,,,

,槽绝缘占面积,At,0.000072,m2,,,

,槽面积,As,0.000704,m2,,,

,槽有效面积,Aef,0.000632,m2,,,

,槽满率,sf,1265.24%,,,控制在0.75~0.8之间,

20,槽距角,α,60,度,,,

,短距系数,Kp1,0.707106781,,,单层绕组短距系数总为1,

,分布系数,Kd1,1.0000,,,,

,绕组系数,Kdp1,0.7071,,,,

,每相有效串联导体数,Nφ1*Kdp1,7090,,,,

21,,Kl,0.92,,,根据cosφ查表,

,转子导条电流,I2’,7370,A,,预计,

,转子导条电密,JB',5.02,A/mm2,,初选,

,导条截面积,AB’,1468,mm2,,,

,转子齿磁密,Bi2’,1.57,T,,初选,

,转子轭磁密,Bj2’,1.65,T,,初选,

,铁心叠压系数,Kfe,0.95,,,0.5mm硅钢取值,

,转子齿宽,bi2’,0.03453,m,,,

,转子轭部计算高度,hj2’,0.03270,m,,,

,转子槽型（梯形槽）,,,,,,

,,hr0,4,mm,,,

,,br0,2.5,mm,,,

,,Hr,42.2,mm,,,

,,Br,8,mm,,,

,,h12,3,mm,,,

,,,,,,,,

,转子齿宽,bi2,0.03453,m,,,

,转子槽面积,AB,0.00030735,m2,,,

,端环电流,IR’,7038,A,,,

,端环电密,JR’,4.0,A/mm2,,取值JR'=（0.45~0.8）JB’,

,端环所需面积,