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1、.WORD 完美格式 .三相電機(jī) 額定電壓 U=380V, f=50HZ, 機(jī)座號(hào) Y132,輸出 P2=8KW, p=4 極1. 型號(hào): Y132M2. 輸出功率: PN=8KW3. 相數(shù): m1=34. 接法:5.相電壓:U=380V6.功電流:IP2103Iwm1U81038331080 = 7.018A7.極對(duì)數(shù):p=28. 定子槽數(shù): Z1=369. 轉(zhuǎn)子槽數(shù): Z2=3210. 定子每極每相槽數(shù):Qp1Z1 = 36 = 32pm122311. 定子外徑: D1=21cm定子內(nèi)徑: Di1=13.6cm 氣隙長(zhǎng)度: =0.4mm轉(zhuǎn)子外徑: D2=13.52cm 13.6-0.04*

2、2=13.52cm 轉(zhuǎn)子內(nèi)徑: Di2=4.8cm 定子槽型:半閉口圓底槽定 子 槽 尺 寸 : bo1=0.35cm b1=0.67cm ho1=0.08cm R1=0.44cm h 12=1.45cm專(zhuān)業(yè)知識(shí)編輯整理.WORD 完美格式 .轉(zhuǎn)子槽形:梯形槽轉(zhuǎn) 子 槽 尺 寸 : bo2=0.1cm ho2=0.05cm h r12 =2.3cmbr1=0.55cmbr2=0.3cmDi1 3 .1415 13.612. 極距: = Di1 = = 10.681cm2p 4Di1 3.1415 13.613. 定子齒距: t1 = i1 = = 1.187cm1 Z136D2 3.1415

3、13.5214. 轉(zhuǎn)子齒距: t2 = 2 = = 1.327cm2 Z23215. 氣隙長(zhǎng)度: = 0.04cm16. 轉(zhuǎn)子斜槽距: bsk=t1=1.187cm17. 鐵芯長(zhǎng)度: l=16cm18. 鐵芯有效長(zhǎng)度:無(wú)徑向通風(fēng)道: lef=l+2=16.08cm19. 凈鐵芯長(zhǎng):無(wú)徑向通風(fēng)道: lFe=KFel=0.95*16=15.2cmK Fe=0.95 (不涂漆)專(zhuān)業(yè)知識(shí)編輯整理.WORD 完美格式 .20.繞組型式:?jiǎn)螌咏徊媸?1.并聯(lián)支路數(shù): a1=122.節(jié)距: 1-9,2-10,11-1823.每槽導(dǎo)線(xiàn)數(shù):由后面計(jì)算的數(shù)據(jù)根據(jù)公式計(jì)算為:每極磁通 1=0.00784wb波幅系數(shù)

4、:KA=1.46繞組系數(shù):Kdp1=0.96每相串-2 1.21380 10- 21.460.00784 - 2聯(lián) 有 效 導(dǎo) 線(xiàn) 數(shù) : N1Kdp1 = KzUK1 105500 = 401.70 Kz取1.21每相串聯(lián)導(dǎo)線(xiàn)數(shù): N1= NK1Kdp1 = 4001.9.670 = 418Kdp10.9650=f1每槽導(dǎo)線(xiàn)數(shù): N4181 = 418 = 34.83 取整數(shù): N1=351224. 線(xiàn)規(guī):導(dǎo)線(xiàn)并饒根數(shù)與截面積之積(式中的值由其后的公 式算得):I1 = 9.1627 = 1.7655mm 2 a1J115.19由此可通過(guò)查表知線(xiàn)規(guī)為: 2-1.06 (N-)25.每根導(dǎo)線(xiàn)截

5、面積: Acl=0.00882cm 226.h) + 2R2Ai= Ci ( 2hs12 +R)Ci-絕緣厚度h-槽楔厚度Ci=0.08mm27.槽滿(mǎn)率: ksNs1Ncl dAe2100%=2350.013213.514404.013 = 79.5%槽有效面積: Ae=As-Ai=1.1444cm 22R+ bs12R+2bs1 ( h s-d- 絕緣導(dǎo)線(xiàn)外徑 d=1.14mm專(zhuān)業(yè)知識(shí)編輯整理.WORD 完美格式 .28.每相串聯(lián)導(dǎo)線(xiàn)數(shù): N1= Zm1Nas11 = 35336 = 42029.繞組分布系數(shù): Kd1sin(2q1) = 0.96q1sin(2)30.31.32.q1Z12

6、pm2p=Z143 = 322180= 20 36繞組短距系數(shù): Kp1 = sin( 90) = 1= myq1繞組系數(shù): Kdp1 = Kd1 Kp1 = 0.96二磁路計(jì)算每極磁通: ?1 = 2.22fKNE?U1?Kdp1 = 0.00784Wb =3800.9232.22 50 4200.96KE=0.923 K E 范圍 0.85-0.9533.定子齒截面積 :At1 =bt1lFeZ12p = 76.05cm234.轉(zhuǎn)子齒截面積: At2 =bt22lFpeZ2= 75.95cm2b t1,b t2-定,轉(zhuǎn)子齒寬35.定子軛部截面積: Aj1= hjlFe = 1.877 15

7、.2 = 28.53cm 23.7- (0.08+ 1.45+ 0.44)+ 0.344hj= D1-2Di1 - hs+ 31R=36.1.877轉(zhuǎn)子軛部截面積: Aj2 = hj2 lFe = 30.65cm 2 D2- Di22hj2 = 2 - hR - 3 dk = 2.016專(zhuān)業(yè)知識(shí)編輯整理.WORD 完美格式 .37.38.39.40.41.42.43.44.45.46.47.48.49.50.51.52.因無(wú)通風(fēng)孔 dk=0空氣隙面積: A= elf = 10.681 16.08 = 171.8cm 2波幅系數(shù): KA=1.46 K S=1.276KA 由飽和系數(shù) KS查得,開(kāi)

8、始計(jì)算時(shí)先假定 KS 定子齒磁密: Bt1 = KA ?1 104 = 1.46 0.00784 104 =At176.051.505T轉(zhuǎn)子齒磁密: Bt2 = KA ?1 104 = 1.46 0.00784 104 =t2A At275.951.507T定子軛磁密: Bj1 = 12A?1 104= 21 0.2080.75834 104 = 1.37T2 Aj12 28.53轉(zhuǎn)子軛磁密: Bj2 = 1?1 104= 1 0.00784 104 = 1.28T2 Aj22 30.65RhT1 = hs1 + hs2 + 3 = 1.597cmhT2 = hR1 + hR2 = 2.3cm

9、 ( Di1- hj1 )lj1 = 7.51cmj1 4p氣隙磁密: B= KA A?1 104 = 1.460.107017.884 104= 0.666T 定子齒磁場(chǎng)強(qiáng)度: HT1=20.58A/cm (查表硅鋼片磁化曲線(xiàn)) 轉(zhuǎn)子齒磁場(chǎng)強(qiáng)度: Ht2=20.79A/cm (查表硅鋼片磁化曲線(xiàn)) 定子軛磁場(chǎng)強(qiáng)度: Hj1=11.44A/cm (查表硅鋼片磁化曲線(xiàn)) 轉(zhuǎn)子軛磁場(chǎng)強(qiáng)度: Hj2 =8.43A/cm (查表硅鋼片磁化曲線(xiàn))定子齒磁路計(jì)算長(zhǎng)度:轉(zhuǎn)子齒磁路計(jì)算長(zhǎng)度:定子軛磁路計(jì)算長(zhǎng)度:轉(zhuǎn)子軛部磁路計(jì)算長(zhǎng)度: lj2 = (Di2+hj2) = 2.67cm4p氣隙磁路計(jì)算長(zhǎng)度: e

10、= Kc1Kc2 = 0.41.308 1.031 10 = 0.05393cm專(zhuān)業(yè)知識(shí)編輯整理53.54.55.56.57.58.59.60.61.62.63.WORD 完美格式 .Kc2 =t2t2- r2t- 齒距 b 0-槽口寬定子齒磁位降:轉(zhuǎn)子齒磁位降:Ft1 = Ht1 ht1 = 32.86AFt2 = Ht2 ht2 = 47.81A定子軛部磁位降: Fj1 = C1Hj1 lj1 = 43.31AC1=0.504 定子軛部磁路校正系數(shù)C2=0.41轉(zhuǎn)子軛部磁路校正系數(shù)轉(zhuǎn)子軛部磁位降: Fj2 = C2Hj2 lj2 = 9.23A氣隙磁位降: F= 0.8Be 104 = 0

11、.8 0.666 0.05393 104 = 287.34A飽和系數(shù):K = Ft1 + Ft2 + F = 32.86+ 47.81+ 287.34 = 1.28Ks = F = 287.34= 1.28與 38 項(xiàng)比對(duì)總磁位降: F = Ft1 + Ft2 + Fj1 + Fj2 + F= 32.86 +47.81 + 43.31 + 9.23+ 287.34 = 420.55A4.44pF4 .44 2420 .55勵(lì)磁電流: Im = = 3.087Am mN ?1Kdp13 420 0.96勵(lì)磁電流標(biāo)幺值: I?m = IIm = 37.001887 = 0.4399Iw 7.018

12、勵(lì)磁電抗標(biāo)幺值: X?m = I1? = 0.41399 = 2.2732Im 0.4399參數(shù)計(jì)算線(xiàn)圈平均半匝長(zhǎng)度: lc1 = le + 2(d+ lE) = 31.22cmd=1.5cm( 直線(xiàn)部分伸出長(zhǎng) ) lE = kck對(duì) 2,4 極取 0.58 c-平均節(jié)距 c = 10.54cm專(zhuān)業(yè)知識(shí)編輯整理.WORD 完美格式 .64. 線(xiàn)圈端部平均長(zhǎng)度: lE = 2(lE+ d) = 15.22cm65. 線(xiàn)圈端部軸向投影長(zhǎng)度: fd = lEsin = 3.77cm 266. 阻抗折算系數(shù): Kz = m1(N?1Kdp1)2 = 15241m2( N?2Kdp2 )式中:對(duì)籠型轉(zhuǎn)子

13、 m2=Z2, N?2 = 1,Kdp2=167.1.61 1-導(dǎo)線(xiàn)電阻率68.標(biāo)幺值:R1? = R1Iw = 0.0297 U?定子相電阻:R1 =1N?1lc1a1Nc1Ac1轉(zhuǎn)子導(dǎo)條電阻:RB = KzKBBlBAB1.1407 式中: KB=1.04( 對(duì)鑄鋁轉(zhuǎn)子 ) B-導(dǎo)條電阻率 l B=16cm( 轉(zhuǎn)子導(dǎo)條長(zhǎng)度 )AB=0.965cm 2(每根導(dǎo)條截面積 )標(biāo)幺值: R?B = RB UI2? = 1.1407 73.08108 = 0.021169. 轉(zhuǎn)子端環(huán)電阻:RR =RZzDR2p2 AR= 0.3467 專(zhuān)業(yè)知識(shí)編輯整理.WORD 完美格式 .R-端環(huán)電阻系數(shù) DR-

14、端環(huán)平均直徑( 10.7cm )AR- 端環(huán)截面積( 2.6cm 2)標(biāo)幺值: R?R= RRIw = 0.3467 7.018 = 0.006RR U?38070. 轉(zhuǎn)子電阻標(biāo)幺值: R?2 = R?B + R?R = 0.0211 + 0.006 =0.027171. 漏抗系數(shù):Cx = 0.42flef ( pNq?1) (UIw?) 10- 5 = 0.4 3.14152 5024202 7.018 - 816.08 () () 10- 8 = 0.0172323 38072. 定子槽漏磁導(dǎo): s1 = KU1U1 + Kc1 c1 = 1.2431KU1=1 K c1=1 U1=0.

15、4097 c1=0.833473. 定子槽漏抗: Xs?1 = ( ll1) c1Cx = ( 161.608) 0.8334 0.01723 = 0.01429l1= l1 (對(duì)無(wú)徑向通風(fēng)道 )74. 定子諧波漏磁導(dǎo): d1=0.0129 對(duì)60相帶整數(shù)槽繞組,且 32 132 1 c 2 2 1c32( 5q 21+ 1)-( 41qc1+32c2- 14qc1)2d1 = 18 34qq112 3 4q1 - Kd2式中:c- 短距槽數(shù), c=8q1(1-p)75. 定子諧波漏抗: x?d1 = m21q1Kd1Cx = 1.8243 0.01723 = 0.0314376. 定子端部漏

16、磁導(dǎo): E1=0.67(l E-0.64 c)=5.677877. 定子端部漏抗: X?E1= (lq1) E1Cx = ( 163.08) 5.6778 E1lef E1 x 16.080.01723 = 0.01825專(zhuān)業(yè)知識(shí)編輯整理.WORD 完美格式 .78. 定子漏抗標(biāo)幺值: X?1 = Xs?1 + X?d1 + X?E1 = 0.01429 + 0.03142 + 0.01825 = 0.0639779. 轉(zhuǎn)子槽漏磁導(dǎo): s2= U2+ c2 = 2.1754U2 = hR0 = 0.5(槽上部漏磁導(dǎo) ) b02L2=1.6754( 槽下部漏磁導(dǎo) )80. 轉(zhuǎn)子槽漏抗: Xs?2

17、= ( ll2) K2dp1 ( ZZ1) s2Cx = 0.03862 = 2.2413 0.01723l2= l2181. 轉(zhuǎn)子諧波漏磁導(dǎo):對(duì)籠型轉(zhuǎn)子: d2 = Z 1 2 = 0.013 ( kZp21 )K=1, 2,382. 轉(zhuǎn)子諧波漏抗: X?d2 = m12q1Kdp1 d2Cx = 1.6757 0.01723 = efKs0.0288783. 轉(zhuǎn)子端部漏磁導(dǎo): E2= 0.757(l1B.-13l2+ 2DpR) = 2.025(對(duì)籠型 轉(zhuǎn)子)84. 轉(zhuǎn)子端部漏抗: X?E2= lqe1f Kd2p1E2Cx = 0.3478 0.01723 = 0.005992285.

18、轉(zhuǎn)子斜槽漏抗: Xs?k = 0.5(bsk) Xd?2 = 0.5 (1.187) skt2d2 1.3270.02887 = 0.0115586. 轉(zhuǎn)子漏抗標(biāo)幺值: X?2 = Xs?2 + Xd?2 + X?E2 + Xs?k = 0.0850387. 運(yùn)行總漏抗: X? = X1? + X2? = 0.06397 + 0.08503 = 0.149專(zhuān)業(yè)知識(shí)編輯整理.WORD 完美格式 .四運(yùn)行性能計(jì)算88. 滿(mǎn)載電流有功分量: I?p = 1 = 0.188 = 1.136 0.88設(shè)=0.88- 效率89. 滿(mǎn)載電抗電流: Ix? = 1X?I?p2 1 + (1X?Ip?)2 =

19、1.0281 0.1491.13621+ (1.0281 0.1491.136)2 = 0.2037 式中:1 = 1+ I?mX1? = 1+ 0.4399 0.06397 = 1.028190. 滿(mǎn)載電流無(wú)功分量: I?Q = I?m + Ix? = 0.4399 + 0.2037 =0.643691. 滿(mǎn)載電動(dòng)勢(shì)比值: KE= 1- ( Ip?R1? + I?QX1?) = 1(1.136 0.0297 + 0.6436 0.06397) = 0.925與 32 項(xiàng)進(jìn)行比對(duì)92. 定子電流: I?1 = I?p2 + I?Q2 = 1.1362 + 0.64362 = 1.3056?I1

20、 = I?1Iw = 1.3056 7.018 = 9.1627A93. 轉(zhuǎn)子導(dǎo)條電流: I2? = I?p2 + Ix?2 = 1.1362 + 0.20372 =1.154?I2 = I?2IwK1 = 1.154 7.018 37.8 = 306.13AK1-電流折算系數(shù)m1N?1Kdp1K1 =1Z234200.96= 37.83294. 轉(zhuǎn)子端環(huán)電流: IR = 2Z2pI2 = 23.1342152306.13 = 779.58A95.定子電密:J1 =I19.16272=a1Nc1Ac110211.764235.19A/ mm 296.線(xiàn)負(fù)荷:A1 =m 1Z?1 I134209

21、.1627270.22ADi13.1415 13.6cm專(zhuān)業(yè)知識(shí)編輯整理.WORD 完美格式 .97. 熱負(fù)荷: AJ1=A1J1=1402.4498. 轉(zhuǎn)子導(dǎo)條電密: JB = I2 2 = 306.13 2 = 3.17A/ mm 2 AB102 0.965 10299. 轉(zhuǎn)子端環(huán)電密: JR = IR 2 = 779.58 = 2.998A/ mm 2 R AR10 2 2.6100100.空載電動(dòng)勢(shì)比值:KE0 =1- I?mX?1= 1-0.43990.06397 = 0.9719101.空載定子齒磁密:Bt10KKEE0Bt1 =0.97190.9251.505= 1.5813T1

22、02.空載定子軛磁密:Bj10KKE0 Bj1 =KE j10.97190.9251.37 =1.4395T103. 定子齒單位鐵損耗: pt1由Bt10查表得 44.0210-3W/cm3104. 定子軛單位鐵損耗: pj1由 Bj10查表的 36.710- 3W/cm3105.定子齒體積:Vt1= 2pAt1 ht1 =485.68cm 3106.定子軛體積:Vj1= 4pAj1 lj1 =1713.73cm3107.鐵損耗: PFe= k1pt1 Vt1 + k2pj1Vj1對(duì)半閉口槽: k1=2.5,k 2=2PFe = (2.544.02485.68+ 236.71713.73) 1

23、0-3 = 179.24W標(biāo)幺值: P?Fe = PFe 3 = 0.0224PN10108. 基本鐵耗:P?Fe1 =pt1 Vt1 + pj1 Vj1PN 103- 3 -344.02 10- 3 485.68 + 36.710-31713.738000= 0.01053109. 定子電阻損耗: Pc?u1 = I?12R1? = 1.30562 0.0297 = 0.0506專(zhuān)業(yè)知識(shí)編輯整理.WORD 完美格式 .?3Pcu1= Pc?u1PN 103 = 0.0506 8000 = 404.8W110. 轉(zhuǎn)子電阻損耗: Pc?u2 = I2?2R?2 = 1.1542 0.0271 =

24、 0.0361Pcu2 = Pc?u2PN 103 = 288.8W111. 風(fēng)摩損耗: Pfv*參考試驗(yàn)值確定為 0.01?3Pfv = Pf?v PN 103 = 0.01 8000 = 80W112. 雜散損耗: Ps*對(duì)鑄鋁轉(zhuǎn)子可取 0.02?3Ps= Ps?PN103 = 0.02 8000 = 160W113. 總 損 耗 : P? = Pc?u1 + Pc?u2 + P?Fe + Pf?v + Ps? = 0.0506 +0.0361 + 0.0224 + 0.01+ 0.02 = 0.1391114.輸入功率:P?1 = 1+ P? = 1.1391115.滿(mǎn)載效率:P = 1

25、 - PP?11- 10.11339911 = 0.8781.1391116.117.118.- 0.8780.8780.88= - 0.0023與 88 項(xiàng)假定值比對(duì)1功率因數(shù): cos = ?1I1?滿(mǎn)載轉(zhuǎn)差率: SN = Pc?u2PemPem*-氣隙電磁功率- 0.0051.30560.878= 0.87210.0.07376917 = 0.03351.07797Pem = P1 - Pcu1 - PFe1 = 1.07797額定轉(zhuǎn)速: nN = 60f(1- SN)6050(1- 0.0335 )p= 1449 .75 r/min119. 最大轉(zhuǎn)矩倍數(shù):1- 0.0335T?max

26、=1- SNmax ? ?2 ?22(R1?+R?12+X?2)2(0.0297+ 0.02972+0.1492)= 2.66專(zhuān)業(yè)知識(shí)編輯整理.WORD 完美格式 .五起動(dòng)性能計(jì)算?Ist = (2.53.5)Tmax Iw = 61.8A120. 起動(dòng)時(shí)槽磁動(dòng)勢(shì):Fst = 0.707Ist Na?1 ( KV1 + Kdp1Kd1 ZZ1) KE0= 3071.09Aa1Z2121. 虛擬磁密: BL = Fst 10 = 5.0241TL1.6cL = 0.64+ 2.5 = 0.955Lt1+ t2122. 起動(dòng)漏磁飽和系數(shù): Kas=0.418123. 定子槽口寬增大:?b01= (

27、t1 -b01 )( 1 -kas) =0.4874124. 轉(zhuǎn)子槽口寬增大:?b02= (t2-b02 )( 1 -kas) =0.7141125. 定子槽上部漏磁導(dǎo)減少: ?U1 = hr0-b0.58hr1( ?b ?+b101.5b ) =b01?b01+1.5b010.1836126. 轉(zhuǎn)子槽上部漏磁導(dǎo)減少: ?U2 = hR0 ( ? b?b+02b ) = 0.4397U2 b02 ?b02+ b02127. 起動(dòng)定子槽漏磁導(dǎo): s1st = KU1( U1 - ? U1) + Kc1c1 =1.0596128. 起動(dòng)定子槽漏抗標(biāo)幺值: Xs?1st = s1st Xs?1 =

28、1.0596 s11.24310.01429 = 0.01218129. 起動(dòng)定子諧波漏抗標(biāo)幺值: Xd?1st = kasX?d1 = 0.01218130. 定子起動(dòng)漏抗標(biāo)幺值: X?1st = Xs?1st + X?d1st + X?E1 =0.01218 + 0.01313 + 0.01825 = 0.04356131. 擠流轉(zhuǎn)子導(dǎo)條相對(duì)高度: = 2hBbB f 9 = 1.551bs B109專(zhuān)業(yè)知識(shí)編輯整理.WORD 完美格式 .hB- 轉(zhuǎn)子導(dǎo)條高度( cm ) 鋁轉(zhuǎn)子為 1bbRS-轉(zhuǎn)子導(dǎo)條寬與槽寬之比,對(duì)鑄B-轉(zhuǎn)子導(dǎo)條電阻率 h B=2.35cm132. 導(dǎo)條電阻等效高度: hR= h(B)ka = 2.35 1 = 1.621 ( )1.45133. 槽漏抗等效高度: hx= hB( ) ka = 2.350.781 = 1.833134. 擠流電阻增大系數(shù):KR =(1+ a)2() =1+a2()- 11.308a=b1b2135. 擠流漏抗減少系數(shù):Kx =b2(1+a)2()2 bpx(1+a)( KKrr11) =Kr10.88

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