(完整版)感应电动机设计流程

感觉电动机设计流程电机的基本尺寸数据定，转子尺寸定子尺寸单位mmD1Di1b01 bS1Rhs0h12g1t1hS1hC1hC1bT1hs2191363.56.74.0.814.0.3011.80.927.30.870.513.045463655转子尺寸单位mmD r-b2Di2b02r1br2hR0hR1hR2R2t2hC2h12bT22135.2481.05.53.00.51.321.713.2620.1230.62330电动机的设计计算方案1名称公式结果1.功率P2 KW5.52.外施相电压U线电压 （Y接法） V,3U1线电压（接法） V380

3.输出供电流P2103IKW Am1U14.824.效率‘ %85.55.功率因数cos,0.846.极数p47.定，转子槽数Q136Q2328.定，转子每级槽数c Q1QP1 一p9c Q1QP2 一P89.定，转子尺寸10.极距Di1 cmpP10.67611.定子齿距Di1t mm1Qi1.18612.转子齿距, Di2t2 mmQ21.32613.节距y814.转子斜槽宽bsk cm2.78415.每槽导体数双层线圈Z1 2每圈匝数48单层线圈Z1每圈匝数—16.每相串通导体数QiZiZ1 m_a 576

17.绕组线规'N1 S1 ,—工 工 fa1 11.272d mm0.918.槽满率B 2Rbs1 s’ R2 mm22 2127.2SiCi2hs,R2Rbs1 mm215.75i i s' mm2i 1sSC2h RSSS 0mm2e S i111.45fN1Z1d2 /S S /0e79.319.死心长l mm200leffl2g mm200.8leff lnk1 bk1, mmlFE KFE l mm18420.绕组系数Kdp1 Kd1 KP10.946sin2q1Kd1 2 或查表1d1q1 sin一20.96KP1 sin 90或查附表20.985yQ10.888821.每相有效串连导体数Z1Kdp1544.896

22.每极磁通E11082.22f Z1Kdp10.534106E11L U10.85*38023.齿部截面积ST1bT1lFe Qp191.08SblQT2 T2 Fe p291.724.轭部截面积'ShlC1 c1 Fe16.12圆底槽h'D1Di1h1c1 2 s3R0.876平底槽h D1Di1hc1 2 s转子Shlc2 c2 Fe36.984圆底槽hc2 D2Di2 hR 1r22dk2'2 3 3’ D2Di2 2平底槽hc2 2 hR3dk22.0125.空气隙面积Sg pleff21426.波幅系数最大 一升LFs访石一 高斯S均匀1.5327.定子齿磁密BT, 过1 高斯897028.转子齿磁密Bi SSt2 高斯890929.定子轭磁密[2 1cBe1一 高斯,2SC1 ..1656330.转子轭磁密1 、,Bc2 高斯2Sc.721931.空气隙磁密Bg FS_ 高斯S381732.各部分磁路每厘米长gatT1 Acm4.22

所需安匝数atT2 Acm4.i6at Acmc1 /7i.4atc2 Acm2.8233.磁部磁路计算长度hT2' hR1hR2Lr3hhhT1 si s2h'hT1 sihTi hsihs21R 厘米3i.596hT2 hR1hR2 厘米'2.334.轭部磁路计算长度D1hci.1 ; ci 2p2.2655'1 Di2 hc2cc21 c2p2.6735.有效气隙长度gegKci Kc20.054636.磁部所需安匝数ATath, 安匝Ti Ti Ti6.735AT . 一T2atT2hT2' 安匝9.56837.轭部所需安匝数ATCat1 …' 安匝Ci i Ci Ci48.5ATC2 C2atCi 1C2' 安匝5.2738.空气隙所需安匝数ATg0.8Bgge 安匝i6639.饱和系数F ATti ATt2FT ATgATi.09840.总安匝~g~ATATTiATT2ATCiATC2ATg 安匝236

41.满载磁化电流2.22ATp ^尸Im ZK 安培m1 1 dpi1.2842.满载磁化电流标么值I- mi mIKW0.26543.激磁电抗1xm=im3.7744.线圈均匀半匝长单层线圈lz Lb Ks y双层线圈lzLB2CS 厘米42.28CS—厘米2cos8.14D.i 2h0h1h2 RY- 二——二 厘米P10.98cos J1sin20.674sin ♦2Rbi2R2bT1s1 T1 .0.73845.双层线圈端部轴向投影长fd CSsin 厘米646.单层线圈端部均匀长ls 2d1 KS Y47.漏抗系数C2.63fP21./02X 2pU1 1050.074648.定子槽单位漏磁导S1《1 U1&1 L11.16649.定子槽漏抗X 11 m1 P S1 Cs1 2 Xlff K, Q1eff dp1 、10.43CX无径向通风道11 1 厘米20有径向通风道11 1nK1bK150.定子谐波漏抗X -m1-P -Cd1 2 xgKF2be dp1 T0.608CX

51.定子端部漏抗1.2d1 0.5fd双层绕组xe厂 Cxleff0.358Cx单层齐心式,1 0.67ls0.64YCx2leff Kdp1l0.64vs Y单层齐心式，交错式xe1 0.47-——K—Cxleff Kdp1单层链形绕组xe1 0.2 _! Cx2leff Kdp152.定子漏抗xxxx1 s1 d1 e10.10453.转子槽单位磁漏抗S2 U2 L21.6254.转子槽漏抗_l2m1P S2xs2 leff Q2 Cx0.605Cx有径向通风道l2l20无径向通风道l2l ,2bk2’.»»k2b查附图1355.转子谐波漏抗_ m1 Rxd2 2gK2Fxd dp1 T0.694Cx56.转子端部漏抗x 竺7U2rce2 1.13pxeff x0.119Cx57.转子斜槽漏抗2— b——xSK 0.5TK x2I21.53Cx58.转子漏抗■■■1x2 xs2 xd2 xe2 xSK0.2259.总漏抗x x1x20.32460.定子相电阻lzZ1R11S1N11004.161.定子相电阻标么值S一 IKWr1R1U70.05262.有效资料每台定子导线重GcuClzZ1 1 1 1 5QSN 108.86每台硅钢片重Gfe KfelD1 27.8103公斤54.57

导条电阻RrKKB lBB2.6BSBQ2端环电阻导条电阻r2rKDRrp2srr0.05导条电阻标么值r：BIKWRb-Ur0.0329端环电阻标么值r：rIKWRR-U70.000663.转子电阻转子电阻标么值r2rB rR0.033164.满载电流有功部分满载电流有功部分i1P1.169满载电抗电流ixKmnxiP"2 .21Km/IP0.52365.与满载电抗电流Km 1 1mX11.02766.满载电流无功部分iR 1mix0.78867.满载电势1L1iPrl•Ixr 10.857268.空载电势1 0 15/10.9724469.空载定子齿磁密BT10 fBT11L高斯10136B B高斯1006770.空载转子齿磁密T20 -* 0- T21L71.空载定子轭磁密BC10 -BC11L高斯18659B B高斯815772.空载转子轭磁密C20 1 0C21L73.空载气隙磁密Bg04^Bg1L高斯431374.空载定子齿安匝ATT10 atT10*hT1安匝8.82575.空载转子齿安匝ATt20 atT20*hT2安匝12.512

76.空载定子轭安匝ATC10C1*atC10*lC1 安匝108.9777.空载转子轭安匝ATC20C2*atC20*lC2 安匝6.57878.空载空气隙安匝—ATgo 0.8geBg0 安匝18879.空载总安匝AT0 ATT10 ATt20 ATC10 ATC20 ATg0 安匝324.88580.空载磁化电流I 2.22AT0*pm0m1*Z1*Kdp1 安培1.76581.定子电流1.409i1 7iP2iR2 ,I1i1*KW 安培6.7982.定子电流密度I15.331a1*N1*S1 A/cm2A/cm83.线负荷m1*Z1*I1A1 A/cm*Di1778.471 A1414984.转子电流1.28r 尸 rV2 2 ,2 P xLI m1*I*G315.1685.转子电流密度B r，SB3.267IRR SR3.08886.定子铝消耗P— —；2*rAl1i r0.1031 1 1PPAl1 Al1P2*103566.587.转子铝消耗P - -Al2 122*r0.054PPAl2 Al2P2*103 297

对铸铝转子PS0.01：0.030.01对铜条转子PS 0.005—88.杂散消耗Ps工P2103556 2D44极及以上关闭型自扇冷式Pf 1fwp 1029.3289.机械消耗_ fwPfw P2 1030.0053VT1p*ST1*hT1581.45VC12p*SC1*lc1292.15pT1 瓦/厘米0.02PT2 瓦/厘米0.0713PT1PT1*V111.629Pp*V20.83PFe 1PT1 2PC170.732590.铁耗P PFEFEP2 1030.01291.总消耗PPAL1 PAL2PFePSPfw0.1892.输入功率1P1 P1.1893.总消耗比, PPP10.1594.效率1 P0.8595.功率因数1COS =—*i10.83496.转差率Sn_= p^L2 =_1PAL2旋转铁耗PSPfw0.05

旋转铁耗=已PPFe T1 C197.转速120f1Sn 二转/分712.598.最大转矩1STm , n 倍一 52-22r1Vr1x1.2599.起动电流开始假设值Ist'2.5：3.5TM IKW （安）21100. 起动时漏抗磁路ATBl1.6gc33818Z1 K2 Q1, 2067ATst Ist'_ 0.707KU1 Kd12 KP1—110a】 Q2饱和惹起漏抗变化的0.64 2.5J———C ■t20.955系数查图101. 齿顶漏磁饱和惹起定子顶宽度的减少CS1 t1 b01 1 KZ0.284102. 齿顶漏磁饱和惹起定子顶宽度的减少CS2 t2 b02 1 KZ0.416103.起动时定子槽单位漏磁导s1st &1U1 U1 ^L1 L1U1按槽形查附图11.045104. 起动时定子槽漏抗s1st0.385CXs1st s1x xs1105.起动时定子谐波漏抗xd1st KZ xd10.4Cx106. 定子起动漏抗X1st xs1st Xd1stxe11.143CX107. 考虑导挤流效应的转子导条相对高度0.1987BJbBgfYrbbg1.55108. 转子挤流效应系r—r1.30

数x:0.325X0S2stU2stL2st0.461按槽型查附图10.097109.起动时转子槽单位漏U2stU2U2U2磁导L2stX: L2X00.364110.起动时转子槽漏0.24CxS2st抗X℃S2stS2XS2111.漏抗起动时转子谐波Xd2stKZXd20.458CX112.起动时转子斜槽Cx漏抗XSKstKZXSK113.左上2^半口办也珏Xc2stX1S2stXd2stXc X5e2 SKst0.06转子起动漏抗114.起动总漏抗xstX1stX2st0.22rlll0.086115.左上丰口办i=bROr2str_ Bl lrbrr转子起动电阻0B B116.起动总电阻rstf1r"st0.1380.23117.起动总阻抗z 1ststX2stIstIKWzstA20.9118.电动电流rlst 1倍31TstX 1倍1.54一2st1n119.起动转矩z2stS4电动机的改良方案

名称公式方案2方案31.额定线电压340340—2.外施相电压U1竺（Y接法）196.299196.2993.输出供电流P2 103IKWm1U19.3399.339Q136364.定，转子槽数Q232325.功率要素cos0.8310.8476.极数p447.效率'0.8730.8818.绕组线规d2.061.879.导体并绕根数N11110.每槽导体数双层线圈Z12每圈匝数2024—11.槽满率N1Z1d2Sf Se0.79740.7980512.铁芯长l14810413.定子齿磁密BT1FSS-T114803.913467.1314.转子齿磁密BT2 FS29457.1425950.18—15.定子轭磁密BC12SC114638.513316.6616.转子轭磁密BC22S。C212847.811318.2317.空气隙磁密B FSSgg g6344.975758.926 r18.空载定子齿磁密BT10、B11L14075.4113041.1519.空载转子轭磁密BT20 fPT21L27486.1924916.12

20.空载定子轭磁密B i BC10 0C11L13918.1512895.4521.空载转子轭磁密B 1BC20 0- C21L11988.1710867.2322.空载气隙磁密B 10B。g0 g1L6032.7385576.76723.定子电流密度I11a1*N*S13.8294.57724.线负荷m1*Z1*IA - A1 *Di1215.087254.2125.热负荷1A1823.681163.5626.转速120f1Snn- 转/分P1471146227.最大转矩倍数TM I 倍一 /-2 222r1 %1 x4.0143.67528.起动转矩倍r-T 2—s)1Sst _ nz2st2.0031.89729.起动电流倍数7Lst 1I16.9666.783电动机在运履行产生消耗，这些消耗转变为热能，惹起电机发热，电动机的温度过高会使绝缘快速老化，绝缘性能和机械强度降低，使使用寿命大大缩短，严重时会烧坏电机，为了限制发热对电动机的影响，使电动机的温升不超出必定的数值，一方面要控制电机各部分的消耗，使发热减少；另一部分改良电动机的冷却系统，提升其传热和散热的能力。所以可见，防治电动机因过热而破坏特别重要。解决电动机温升问题有很多方法，比如：减少定子线圈匝数，增大导风光积，增添死心，降低热负荷；或改正风路，改正电扇，让介质带走更多的热量，这类方法因要改变定子部分或机座结构形式，比较困难[10]O4.1三相异步电动机发热过高的原由.电动机过负荷，定子电流过大.线负荷过大.电流密度过大.消耗大定子绕组缺相运转.电源电压过高或过低.电动机通风道拥塞效率是电动机的一个重要性能指标，它的高低决定于运转时电机所产生的消耗，消耗越低，效率越高，发热越低。消耗的大小与电磁负荷有很大关系。为了降低消耗，就得选较低电磁负荷和电流密度，但这样会增添电动机的尺寸和资料耗量。别的，消耗的大小还与资料的性能，绕组的形式，电动机的结构相关系［。4.2改良法：减低消耗，降低线负荷，和电流密度，提升效率。改良电源举措.加大导线截面积成效，降低定子铝消耗，使槽满率加大，起动电流增高，降低电流密度。.减少每相的串连导体数成效，降低线负荷，增添起动电流。方案一方案二方案三槽满率0.7930.79740.79805起动电流36.9666.783定子铝（铜）消耗566.5—232.5244—281.002线负荷778.47215.087254.21定子电流密度5.333.8294.577线径0.92.061.83每槽导体数482024效率0.850.8730.881

.采用合适的绕组型式，如双层绕组，星一三角接混淆接法方案一方案二方案三绕组型式双层叠式双层叠式双层叠式连结方法三角接法星形(Y)接法星形(Y)接法附录A定，转子槽形图口」转子槽定子槽附录附录B三相异步电动机计算单ku1:1.000su1:0.410ku1:1.000su1:0.410su2:0.500es1:1.236|cs2:6.758|stl2:1.488|xst2:0.578|zst:0.117型号:Y132S-45.5KW设计者:容浩然设计时间:2005-5-30no:1Sb:96.5mxmJb:2.966Sb:96.5mxmJb:2.966|Ty:10.53cmSr:260.0mxmJr:2.802|Lz:26.72cmGal:1.43(1.38)bsk/t1:1.00|A1:258.02a/cmDkr:0.00mmbsk:11.9mm|R1:2.4312ohm绕组跨距Y1:1-1 并联支路数:1al:1.50cmfd:3.77cm热负荷:4149Gcu:5.68(5.68)定子槽数:36转子槽数:32 |相数:3电机极数:4定子外径:19.00cm定子内径:13.60cm |额定电压:380.00v额定频次:50.00hz转子外径:13.52cm转子内径:4.80cm |额定功率:5.50kw新方案资料成本:298.74(死心长度:11.50cm单边气隙长度:0.40mm|定子绕组连结形式:△旧方案资料成本:297.82(元)元)定子槽形:(1 圆底槽) | | 定子绕组形式:(5双层绕组(q=3))bs0:3.5hs0:0.8|bs1: 6.7|hss:14.5|Rs:4.40||Zs:30.00 | | 种类: | | NS1|NDS_| |NS2 | | |每槽导体数:|48||转子槽形:(1平底平行齿槽)|N-d1:_|N-d2:|1-0.90|1-0.90||||br0:1.0br3:5.5hr3:21.7|br1:5.5|wr4:3.0|hrr:23.0|br2: 5.5 |kf%:|hr0: 0.5 | j1:|zr: 30.0 | |79.30 ||4.844 | | || | | | 硅钢片材 料:50DR510 | 定子槽绝缘厚:0.27定子槽楔厚:2.0 | 硅钢重:37.6(37.6)叠压系数:0.92 |kdpl:0.9598 Zph:564.0Wt1:0.557cmhc1:1.730cm|Wt2:0.625cmhc2:2.010cm电磁计算 I 运行结 果(d/s) | ken:0.9159|ktn:1.3191|I1(A): |11.285keo:0.9655|Imo:0.6271|I2(A): |5.638kc:1.3483||Im(A):| 4.195___| |Pcu(w): |309.617|b(kgs)|l(cm)|at/cm|at|Pal(w):|200.531___| | |__ | |Pfe(w): | 136.986g:|6.771|0.054 ||292.14 |Pad(w):|110.000St:|15.290|1.597|23.574 |37.64 |Pmc(w):| 70.000Sc:|14.131|7.510|13.253 |47.60 |Psm(w):| 827.13Rt:|15.336|2.300|24.169 |55.59 |sn(%):| 3.369Rt:|0.000|0.000 |0.000 |0.00|Eff(%):|86.93/86.93Rc:|13.193|2.674|9.480 |9.95|Fac:|0.8518/0.9520Fm:|| ||442.92|Tm/Tn:| 2.686/2.690___| | |__ | |Tst/Tn: |2.279/2.230Ikw(A):4.825 |Zkw(ohm):78.76 |Ist/I1:| 6.309/6.250启动参数: | | 额定参 数: 启动参数:cx=0.04249 |Ed1:0.0130 |Ed2:0.0130 |ha:1.5512|r/R:1.3085|Xs1:0.444|Xs2:0.8101 |Bst:0.446|Kz:0.4494|Kl1:1.000|sl1:0.826|sl2:1.675|es2:2.175|Kl1:1.000|sl1:0.826|sl2:1.675|es2:2.175|xd1:0.642|xe1:0.532|xm:1.992|rb:0.0188|xd2:0.5910|xe2:0.1749|xsk:0.2363|rr:0.0079|cs1:4.608|stu2:0.064|xst1:0.380|stu1:0.231三相异步电动机改良计算单三相异步电动机改良计算单1ku1:1.000su1:0.410ku1:1.000su1:0.410su2:0.500es1:1.236|cs2:6.758|stl2:1.488|xst2:0.578|zst:0.117型号:Y132Sm-45.5KW设计者:容浩然设计时间:2005-5-30no:1定子槽数:36转子槽数:32 |相数:3电机极数:4定子外径:19.00cm定子内径:13.60cm |额定电压:340.00v额定频次:50.00hz转子外径:13.52cm转子内径:4.80cm |额定功率:5.50kw新方案资料成本:315.52(死心长度:14.8cm单边气隙长度:0.40mm| | 定子绕组连结形式:y旧方案资料成本:297.82(元)元)定子槽形:(1圆底槽) | | 定子绕组形式:(5双层绕组(q=3))bs0:3.5hs0:0.8|bs1: 6.7|hss:14.5|Rs:4.40|Zs:30.00|| |_种类: | | NS1|NDS_| |NS2 | |__ |每槽导体数:|20||转子槽形:(1平底平行齿槽) |N-d1: |1-2.06 |N-d2: |0-0.00||||br0:1.0br3:5.5hr3:21.7|br1:5.5|wr4:3.0|hrr:23.0|br2:5.5|hr0: 0.5|zr:30.0|kf%:|j1:| |79.9|4.844| |___| || | | | |_ |绕组跨距Y1:1-1并联支路数:1Sb:96.5mxmSr:260.0mxmGal:1.43(1.38)Dkr:0.00mmJb:2.966Jr:2.802bsk/t1:1.00bsk:11.9mm|Ty:10.53cm|Lz:26.72cm|A1:258.02a/cm|R1:2.4312ohm | al:1.50cmfd:3.77cmGcu:5.68(5.68)热负荷:830.5硅钢片材料:50DR510|定子槽绝缘厚:0.27定子槽楔厚:2.0硅钢重:37.6(37.6)叠压系数:0.92 |kdpl:0.9598 Zph:564.0 | hc2:2.010cm运行结果(d/s)Wt1:0.557cmhc1:1.730cm|hc2:2.010cm运行结果(d/s)cx=0.04249|Ed1:0.0130 |Ed2:0.0130 |ha:1.5512|r/R:1.3085cx=0.04249|Ed1:0.0130 |Ed2:0.0130 |ha:1.5512|r/R:1.3085|Xs1:0.444|Xs2:0.8101|Bst:0.446|Kz:0.4494|Xs1:0.444|Xs2:0.8101|Bst:0.446|Kz:0.4494|Kl1:1.000|sl1:0.826|sl2:1.675|es2:2.175|Kl1:1.000|sl1:0.826|sl2:1.675|es2:2.175|xd1:0.642|xe1:0.532|xm:1.992|rb:0.0188|xd2:0.5910|xe2:0.1749|xsk:0.2363|rr:0.0079|cs1:4.608|stu2:0.064|xst1:0.380|stu1:0.231ken:0.9159|ktn:1.3191|I1(A): |11.285keo:0.9655|Imo:0.6271|I2(A): |5.638kc:1.3483||Im(A):| 4.195___| |Pcu(w):|309.617|b(kgs)|l(cm)|at/cm|at|Pal(w):| 200.531___| | | | |Pfe(w):| 136.986g:|6.771 |0.054 ||292.14 |Pad(w):|110.000St:|15.290 |1.597|23.574|37.64 |Pmc(w):| 70.000Sc:|14.131 |7.510|13.253|47.60 |Psm(w):| 827.13Rt:|15.336 |2.300|24.169|55.59 |sn(%):| 3.369Rt:|0.000 |0.000 |0.000|0.00|Eff(%):| 87.30/86.93Rc:|13.193 |2.674|9.480|9.95|Fac: |0.8310/0.9520Fm:| |||442.92 |Tm/Tn:| 4.014/2.690___| | | | |Tst/Tn:|2.003/2.230Ikw(A):4.825|Zkw(ohm): | 78.76 |Ist/I1:|6.9660/6.250 | | 电磁计算 | 额定参数: | 启动参数:三相异步电动机改良计算单三相异步电动机改良计算单2ku1:1.000su1:0.410ku1:1.000su1:0.410su2:0.500es1:1.236|cs2:6.758|stl2:1.488|xst2:0.578|zst:0.117型号:Y132Sn-45.5KW设计者:容浩然设计时间:2005-5-30no:1定子槽形:(1圆底槽)| 定子绕组形定子槽形:(1圆底槽)| 定子绕组形___| 式:(5双层绕组(q=3))bs0:3.5hs0:0.8|bs1: 6.7|hss:14.5|Rs:4.40|Zs:30.00|| | 种类: |NS1 | |NDS_| |NS2 | |____|每槽导体数: |24||转子槽形:(1平底平行齿槽) |N-d1: |N-d2:|1-1.87 ||0-0.00 |||br0:1.0br3:5.5hr3:21.7|br1:5.5|wr4:3.0|hrr:23.0|br2:5.5|hr0: 0.5|zr:30.0|kf%:|j1:| |79.9 ||4.844 | | || | | | |____|绕组跨距Y1:1-1并联支路数:1al:1.50cmSb:96.5mxmJb:2.966|Ty:10.53cmSr:260.0mxmJr:2.802|Lz:26.72cmGal:1.43(1.38)bsk/t1:1.00|A1:258.02a/cmDkr:0.00mmbsk:11.9mm|R1:2.4312ohm|fd:3.77cm热负荷:1141.5Gcu:5.68(5.68)硅钢片材料: