..WORD完美格式....专业知识编辑整理..11KW变频起动永磁同步电动机电磁设计程序及电磁仿真1永磁同步电动机电磁设计程序1.1额定数据和技术要求除特殊注明外,电磁计算程序中的单位均按目前电机行业电磁计算时习惯使用的单位,尺寸以cm(厘米)、面积以cm2(平方厘米)、电压以V(伏)、电流以A(安)、功率和损耗以(瓦)、电阻和电抗以(欧姆)、磁通以Wb(韦伯)、磁密以T(特斯拉)、磁场强度以A/cm(安培/厘米)、转矩以N(牛顿)为单位。1额定功率kwPn112相数31m3额定线电压VUN3801额定相电压Y接法VUUNN39.2193/14额定频率50fHZ5电动机的极对数P=26额定效率87.0,N7额定功率因数78.0cos,N8失步转矩倍数2.2*poNT9起动转矩倍数2.2*stNT10起动电流倍数2.2*stNI11额定相电流62.2478.087.039.21931011cos105,,15AUmPINNNNN12额定转速1000Nnr/min13额定转矩mNnPTNNN.039.10510001155.91055.93..WORD完美格式....专业知识编辑整理..14绝缘等级:B级15绕组形式:双层叠绕Y接法1.2主要尺寸16铁心材料DW540-50硅钢片17转子磁路结构形式:表贴式18气隙长度cm07.019定子外径cmD26120定子内径cmDi18121转子外径86.17)07.0218(212cmDDi22转子内径cmDi6223定,转子铁心长度cmll152124铁心计算长度cmlla152铁心有效长度cmcmllaef14.15)07.0215(225定子槽数136Q26定子每极每相槽数332/362/11pmQq=227极距cmPDip728.932/1814.32/128定子槽形:梨形槽定子槽尺寸cmhcmrcmbcmbcmh72.153.078.038.008.00211010129定子齿距cmQDti5708.13618111..WORD完美格式....专业知识编辑整理..30定子斜槽距离cmpQQttsk50.1336365708.111131定子齿宽cmrQhhDbit824954.006.136)]72.108.0(218[2)](2[111201111cmbQhhDbsit824911.078.036)]1155.008.0(218[)](2[11101112式中1155.06tan238.078.0tan210111bbhscmcmbbbbtttt824940.03825911.0824954.0824911.03121112132定子轭计算高度8467.1)53.03272.108.0(21826)32(211201111rhhDDhijcm33定子齿计算长度cmrhht8967.153.03172.13112134定子轭磁路计算长度cmhDpLjj3233.6)8467.126(12)(411135每槽导体数381sN36并联支路数2137每相绕组串联匝数1142338361111mNQNs38并绕根数-线径111dNt=1-1.20122dNt=1-1.2039槽满率槽面积222112118394.1253.0)2.072.1(278.053.022)(22cmrhhbrAs..WORD完美格式....专业知识编辑整理..式中,槽楔厚0.2hcm,槽绝缘占面积2111122678.0)78.006.153.044.3(035.0)22(cmbrrhCAii式中,绝缘厚度0.03iCcm槽有效面积5718.12678.08396.1isefAAA槽满率%22.795718.1])08.02.1()08.02.1[(38])()([222212221111efdtdtsfAhdNhdNNS40节距y=541绕组短距因数8333.0)125sin()2sin(1pK式中6/5/mqy42绕组分布因数9659.02sin2sin111qqKd43斜槽因数9909.04682.0)2/4682.0sin(2)2(1ssskK44绕组因数9245.09909.08333.09659.0111skpddpKKKK45绕组线圈平均半匝长cmLdlLeav212.28)106.55.1(215)(2,1式中,绕组直线部分伸出长一般取1-3cm,取d=1.5cm;双层线圈端部斜边长cmLyE106.5)8497.02/(728.9)cos2/(0,。8497.05272.01sin1cos20205272.028249.006.178.006.178.0222sin11111tbrbrb..WORD完美格式....专业知识编辑整理..728.9)53.072.1105.016.018(3652]2[1121011prhhhDsiy46双层线圈端部轴向投影长6921.25272.0106.5sin,EdLfcm47单层线圈端部平均长cmLdlEE212.13)106.55.1(2)(2,1.3永磁体的计算48永磁材料类型:钕铁硼49计算剩磁密度TBr12.150计算矫顽力mkAHc/93651相对回复磁导率05.1r52磁化方向长度cmhm4.053永磁体宽度cmbm1054永磁体轴向长度:对于钕铁硼永磁cmlm1555提供每极磁通的截面积:对于矩形切向式21501510cmlbAmmm1.4磁路计算56极弧系数889.0p57计算极弧系数909.0889.01607.0728.94889.01641ppi58气隙磁密波形系数2604.12909.0sin42sin4ifK59气隙磁通波形系数1835.10156.01835.0K60气隙系数2604.12909.0sin42sin4ifK..WORD完美格式....专业知识编辑整理..61空载漏磁系数3.1062永磁体空载工作点假定值91.00,mb63空载主磁通WbABbmrm01176.03.11015012.191.010404,0064气隙磁密TlBefi8777.014.15728.9909.01001176.010414065气隙磁位差直轴磁路AKBF82.138410)07.02019.1015.0(1048777.0210)(227220交轴磁路AKBFq28.11751007.02019.11048777..02227066定子齿磁密TlKbltBBFeteft77.11595.08249.014.1557.18777.0111167定子齿磁位差AhHFttt72.748967.17.192211168定子轭部磁密ThKlBjFej82.18467.195.01521001176.021041140169定子轭磁位差AlHCFjjj41.358477.11043.022111170转子轭磁密747.0943.595.01521001176.0210421402jFejhKlBT71转子轭计算高度cmDDhij934.526086.17222272转子轭计算长度cmphDljij1267.364)934.560(4)(22273转子轭磁位AlHCFjjj11.41267.327.222222274每对极总磁位差AFFFFFjjt07.149911.441.3572.7482.1384211..WORD完美格式....专业知识编辑整理..75磁路饱和系数06.154.128972.7454.12891qtqstFFFK76主磁导601088.707.149901176.0F77主磁导标幺值92.715010412.1104.01088.7210272602mrmAh78外磁路总磁导标幺值3.1072.93.10n79漏磁导标幺值378.292.7)13.1()1(080永磁体空载工作点911.013.103.1010nnmb81气隙磁密基波幅值TlKBefif892.010140182空载反电动势VKNfKEdp7.24288.001176.011495.05044.144.4001.5参数计算83定子直流电阻3085.0)6.02(2114212.2821017.2])2()2([224211221111dNdNaNlRttav式中,为导线电阻率(2/mmm),对A,E,B级别的绝缘,铜为20.0217/mmm。84漏抗系数4426.0310)1449244.0(14.1510450410)(4227220pNKlfCdpefx85定子槽比漏磁导3813.1129.1906.04096.0875.011111LLUUsKK875.04/)15.2(4/)13(1UK..WORD完美格式....专业知识编辑整理..906.016/)7659(16/)79(1LK4096.078.038.0105.0238.008.02101101011bbhbhsU129.11L86定子槽漏抗3543.036)9244.0(14.154426.0153813.13322212111xdpefssCQKlpmlX87定子谐波漏抗1711.006.1206.107.0)9244.0(4426.04268.0728.9322211xstdpdCKKKsmX式中S查附录得到。88定子端部漏抗,对于单层交叉式绕组01.04426.014.15)69.25.05.1(2.1)5.0(2.11xefdEClfdX89定子斜槽漏抗0729.01711.0)57.1445.1(5.0)(5.02121dskskXttX90定子漏抗6038.00729.001.01711.03543.01111skEdsXXXXX91直轴电枢磁动势折算系数7934.026.111fadKK92交轴电枢磁动势折算系数2896.026.1365.0fqaqKKK式中,365.0qK,由电磁场数值计算获取经验值。93直轴电枢反应电抗..WORD完美格式....专业知识编辑整理..22.831.1251.14170.2420ddadIEEX式中,VEd51.141,取AIINd31.1262.245.05.094直轴同步电抗828.822.86038.01XXXadd95交轴磁化曲线(aqqXI)计算(1)假设aq(可在0.15~0.85间取值)。(2)交轴磁路总磁压降aqF,以aq代替第55项中的,