KW調(diào)速永磁同步電動機電磁設(shè)計程序文件

1、11KW質(zhì)頻起動永磁同步電動機電磁設(shè)計程序及電磁仿真1永磁同步電動機電磁設(shè)計程序1.1 額定數(shù)據(jù)和技術(shù)要求除特殊注明外，電磁計算程序中的單位均按目前電機行業(yè)電磁計算時習慣使用的單位，尺寸以cm（厘米）、面積以cm2（平方厘米）、電壓以V（伏）、電流以A（安）、功率和損耗以（瓦）、電阻和電抗以（歐姆）、磁通以Wb小伯）、磁密以T（特斯拉）、磁場強度以A/cm（安培/厘米）、轉(zhuǎn)矩以N（牛頓）為單位。1額定功率Pn11kw2相數(shù)m133額定線電壓Un1380V額定相電壓Y接法UnUN1/V3219.39V4額定頻率f50HZ5電動機的極對數(shù)P=26額定效率nQ877額定功率因數(shù)cosn0.788失步

2、轉(zhuǎn)矩倍數(shù)T；°n2.29起動轉(zhuǎn)矩倍數(shù)TstN2.210起動電流倍數(shù)I；n2.211額定相電流InPn 105RUn N cos N_511 1053 219.39 0.87 0.7824.6212額定轉(zhuǎn)速nN1000r/min13額定轉(zhuǎn)矩Tn9.55Pn1039.5511105.039N.mnN14絕緣等級:B級15繞組形式：雙層疊繞Y接法1.2 主要尺寸16鐵心材料DW540-5施鋼片17轉(zhuǎn)子磁路結(jié)構(gòu)形式：表貼式18氣隙長度0.07cm19定子外徑D126cm20定子內(nèi)徑Di118cm21轉(zhuǎn)子外徑D2Di12(1820.07)cm17.8622轉(zhuǎn)子內(nèi)徑Di26cm23定，轉(zhuǎn)子鐵心長

3、度I1I215cm24鐵心計算長度laI215cm鐵心有效長度lefla2(1520.07)cm15.14cm25定子槽數(shù)Q13626定子每極每相槽數(shù)qQ1/2m1p36/233=227 極距 pDi1/2P 3.14 18/2 3 9.728cmp28定子槽形：梨形槽定子槽尺寸h010.08cmb010.38cmbi0.78cmr10.53cmh021.72cm29定子齒距t1-D1181.5708cmQ13630定子斜槽距離tsk31定子齒寬tiQQip1.5708 3636 31.50cma”Di2*ihi2)2182臂劃1.060.824954cmQ136bti2Dii2(hoihsi

4、)Qbi18 2 (0.08 0.1155)360.78 0.824911cm式中hsib1b01 .tan i20.78 0.38 x tan 260.1155 cmbtiibti20.8249110.824954 0.825911 0.824940cm 332定子腕計算高度卜 Di Diihji2-(h01hi2 | ri)326 18 (0.08 1.7220.53) 1.8467 cm33定子齒計算長度.rihtihi2一1.721-0.53 1.8967cm334定子腕磁路計算長度Lji一(Di hji)4p (26 1.8467) 6.3233cm 1235每槽導(dǎo)體數(shù)N si383

5、6并聯(lián)支路數(shù)i 237每相繞組串聯(lián)匝數(shù)QiNsimii363 ii43 238并繞根數(shù)-線彳Nt1d11=1-1.20N t2di2 =1-1.2039槽滿率槽面積2r1bi(hi2h)2ri20.530.78(1.720.2)式中，槽楔厚h0.2cm,槽絕緣占面積ACi(2h12r12rlb1)0.035(3.440.531.060.78)0.2678cm2式中，絕緣厚度Ci0.03cm槽有效面積AefAsAi1.83960.26781.5718槽滿率Sf22此小川辦hdJNt2(d12hd2)Aef38(1.20.08)2(1.20.08)21.571879.22%40節(jié)距y=5541繞組

6、短距因數(shù)Kp1sin(-)sin最)0.8333式中y/mq5/6.q1sin42繞組分布因數(shù)Kd120.96591qsin一243斜槽因數(shù)Ksk12sin(0.4682/2)0.99090.468244繞組因數(shù)KdppKd1Kn1KSk10.96590.83330.99090.9245d1p1ski45繞組線圈平均半匝長Lavl12(dLe)152(1.55.106)28.212cm式中，繞組直線部分伸出長一般取1-3cm,取d=1.5cm；雙層線圈端部斜邊長Ley/(2cos0)9.728/(20.8497)5.106cm。cos0,1sin2010.527220.8497b12o0.78

7、1.06sin0.5272b12h2bt10.781.060.82492d2h01yhs1兒2r12p56(180.160.1051.720.53)9.72846雙層線圈端部軸向投影長fdLesin5.1060.52722.6921cm47單層線圈端部平均長lE2(dLe)2(1.55.106)13.212cm1.3 永磁體的計算48永磁材料類型：被鐵硼49計算剩磁密度Br1.12T50計算矯頑力Hc936kA/mc51相對回復(fù)磁導(dǎo)率r1.0552磁化方向長度hm0.4cm53永磁體寬度bm10cm54永磁體軸向長度：對于被鐵硼永磁lm15cm55提供每極磁通的截面積：對于矩形切向式Ambml

8、m 10 15150cm21.4 磁路計算56極弧系數(shù)00.889p57計算極弧系數(shù)0.90940.8899.72860.0710.88958氣隙磁密波形系數(shù)Kf4.isin一24sin0.9091.260459氣隙磁通波形系數(shù)0.18350.01561.183560氣隙系數(shù)KfsinL24.0.909sin1.260461空載漏磁系數(shù)1.362永磁體空載工作點假定值bm00.9163空載主磁通bm0BAm1040.911.121501040.01176Wb1.364氣隙磁密B01040.011761041lef0.9099.72815.140.8777T65氣隙磁位差直軸磁路F2B-(20)

9、10220.877741072(0.0151.20190.07)101384.82A交軸磁路2BFqK00.877741071.20190.071021175.28A66定子齒磁密Bt1bt1KFel10.87771.5715.14177T0.82490.951567定子齒磁位差Ft12Ht幾19.71.896774.72A68定子腕部磁密Bj101040.0117610469定子腕磁位差Fj170轉(zhuǎn)子腕磁密Bj271轉(zhuǎn)子腕計算高度hj272轉(zhuǎn)子腕計算長度lj22lKehj123"01042l1KFe%2D2Di222150.951.846720.43101.84770.011761

10、042150.9517.8660ghj2)4P(605.94373轉(zhuǎn)子腕磁位Fj274每對極總磁位差1.82T35.41A0.747T5.934cm5.934)3.1267cm2c2Hj2lj222.273.12674.11AFFFt1Fj1Fj21384.8274.7235.414.111499.07A75磁路飽和系數(shù)KstFqFt1Fq1289.5474.721.061289.5476主磁導(dǎo)0.011761499.077.8810677主磁導(dǎo)標幺值m0A10227.881060.41027921.124107150.78外磁路總磁導(dǎo)標幺值1.39.7210.379漏磁導(dǎo)標幺值1)(1.31

11、)7.922.37880永磁體空載工作點bm010.310.3-0.911181氣隙磁密基波幅值BiKf0104i1lef0.892T82空載反電動勢E04.44fKdpN0K1.44500.951140.011760.88242.7V1.5參數(shù)計算83定子直流電阻R12lavNd112d11aNt1(上)Nt2(口22_42.1710式中，為導(dǎo)線電阻率)2一一一2，0.0217mm/m。84漏抗系數(shù).4f°lef(KdpN)2102Cx85定子槽比漏磁導(dǎo)s1KU1U1KL1L1Kui(31)/4(2.5228.21211420.30852(20.6)A,E,B級別的絕緣，銅為_72

12、_250410715.14(0.9244144)21020.442630.8750.40960.9061.1291.38131)/40.875Kl1(97)/167)/160.906h01b012hs1b0140.0803820.1050.40960.380.78L11.12986定子槽漏抗Xsi2pmlsilefKgCx331.3813150.442620.354315.14(0.9244)23687定子諧波漏抗Xd1sdpKstCx39.7280.42680.44262(0.9244)0.071.2061.060.1711式中S查附錄得到。88定子端部漏抗,對于單層交叉式繞組XE11.2(

13、d0.5fd)Clef1.2(1.50.52.69)0.442615.140.0189定子斜槽漏抗tsk2Xsk0.5(7k)Xd1t10.51.4452(1.57)0.17110.072990定子漏抗XiXsiXd1XE1Xsk0.35430.17110.010.07290.603891直軸電樞磁動勢折算系數(shù)Kad1Kf10.79341.2692交軸電樞磁動勢折算系數(shù)Kaq&Kf0.3650.28961.26式中，Kq0.365,由電磁場數(shù)值計算獲取經(jīng)驗值。93直軸電樞反應(yīng)電抗XadEoEd242.70141.51°”8.22Id12.31式中，Ed141.51V，取1d0

14、.5IN0.524.6212.31A94直軸同步電抗XdXadX10.60388.228.82895交軸磁化曲線(XaqIq)計算(1)假設(shè)aq(可在0.150.85問取值)。(2)交軸磁路總磁壓降Faq,以aq代替第55項中的，計算第5566項,所彳#Faq即為交軸磁路總磁壓降。(3)對于交軸電流PFaqaqIdZ0.45m1KaqKdp1Ksk1N1(4)交軸電動勢EaqqE0(5)交軸電樞反應(yīng)電抗Xaq且，給定不同的aq,重復(fù)(1)(5)項即可得Iq到(XaqIq)曲線。XaqIq曲線數(shù)據(jù)表:aq/WbFaq/AIq/AEaq/VXaq/0.150.001764290.5410.5836

15、.403.440.250.00294408.07614.8560.674.080.350.00421526.0019.1585.0274.080.450.00529642.9323.41109.174.440.550.00647760.8127.7133.5254.820.650.00794877.7931.95157.674.930.750.0082933.75633.99169.234.970.850.011113.14740.54206.375.091.6工作性能計算96設(shè)定轉(zhuǎn)矩角,34.597假定交軸電流Iq23.67Aq98交軸電樞反應(yīng)電抗Xq4.55，根據(jù)Iq2367A查XaqIq

16、曲線數(shù)據(jù)表。99交軸同步電抗XaXaaX14.550.60385.1584qaq100輸入功率m22R2E0UN(XqsinR1cos)R1U20.5U；(XdXq)sin2XdXqRiXdXqRi* * 23292.70219.39(5.1584sin(34.5)0.3085cos(34.5)0.3085219.39sin34.55.1584(242.70219.69cos34.5)8.8285.15840.308527.83A102交軸電流XdUNsinRi(EoUncos)Id2XdXqRi8.828 5.1584 0.3085223.62 A如果Iq計算值與91項假設(shè)值之間的誤差超過1

17、%則重新設(shè)計Iq,重新計8.828219.39sin34.50.3085(242.70219.69cos34.5)算第9196項103功率因數(shù)1d7.83arctan18.35Iq23.62q34.518.3516.15cosCOS16.150.96104定子電流I13C2J7.83223.62224.89A105負載下運行時，從相量圖中可求出其氣隙基波合成電動勢(V)E(E01dxad)2(IqXaq)(242.707.838.22)2(23.634.55)2208.18VE4.4 fKdpNKU p氣隙合成磁通(Wb0.01008Wb208.184.44500.92451140.88106

18、負載氣隙磁密Bd1040.010080.909 9.728 15.140.7528T107負載定子齒磁密Bt1dBdt，fbt1KFel10.7528 1.57 15.140.8249 0.95 151.5231T108負載定子腕磁密Bj1d1042l1KFehj10.010082 15 0.95 1.84671.7267T109銅耗Pcum1112Kl324.8920.3085573.33W110鐵耗PFek1Pt1dVt1k2pj1dVj1120.42W式中，鐵耗校正系數(shù)取k13,k22.5111雜耗I13_ps(-)PsnPn103158.61WIN112機械損耗：對于4極及以上封閉型自

19、扇冷式32Di4264Pfw(一)(1)()45.70Wp1010113總損耗PPcuPFepspfw573.33120.42158.645.70908.06W114輸出功率P2RP15734.6908.0614826.6115效率PL100%14826.6100%94.23%E15737.6116工作特性：如下表所示0R/KwP2/Kw11/A/%cos2010.839.8715.094.930.992512.0811.4418.5094.690.9934.515.7414.8323.3694.230.964518.7817.3731.3992.490.916520.6018.7436.9190.910.858521.3319.0241.6889.160.78100.224.9621.3049.9787.700.77117失步轉(zhuǎn)矩倍數(shù)TPo*