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凸极同步发电机电磁计算程序 5.1额定数据和主要尺寸 1.额定电压UNSKIPIF1<0 2.额定转速nNSKIPIF1<0 3.额定频率ƒSKIPIF1<0 4.额定功率因数cosSKIPIF1<0=0.8 5.额定电流SKIPIF1<0 6.相数m=3 7.确定功率:SKIPIF1<0 8.根据功率取对应T2X-250L电机,额定功率SKIPIF1<0 9.效率SKIPIF1<0 10.极数SKIPIF1<02pSKIPIF1<0 11.计算功率: SKIPIF1<0 式中SKIPIF1<0(对于同步发电机取值) 12.极弧系数:极弧长度SKIPIF1<0 取SKIPIF1<0=SKIPIF1<0 13.气隙磁密SKIPIF1<0取SKIPIF1<0 14.取线负荷SKIPIF1<0 15.电机的计算体积 SKIPIF1<0SKIPIF1<0SKIPIF1<0SKIPIF1<0 16.主要尺寸比:SKIPIF1<0 17.定子铁心内径取值范围 SKIPIF1<0SKIPIF1<0 18.定子铁心铁外径: SKIPIF1<0 按标准选取SKIPIF1<0 则定子内径:SKIPIF1<0 19.定子铁心有效长度: SKIPIF1<0 20.定子铁心净长度: SKIPIF1<0 式中SKIPIF1<0=0.92(对0.5mm厚硅钢片) 在对发电机的计算中,SKIPIF1<0不计入SKIPIF1<0中 本次设计选用的硅钢片型号为:DR530-50对应的老牌号为D22 21.磁极铁心总长度:SKIPIF1<0 22.磁极铁心净长度: SKIPIF1<0 式中SKIPIF1<0=0.95(对于SKIPIF1<0厚钢片) 23.极距:SKIPIF1<0 24.圆周速度:SKIPIF1<0 25.气隙长度: 最小气隙:SKIPIF1<0 SKIPIF1<0 取SKIPIF1<0 最大气隙:SKIPIF1<0 26.铁心的计算长度:SKIPIF1<0 5.2定子绕组 27.每极每相槽数:SKIPIF1<0 28.定子槽数:SKIPIF1<0 29.取绕组节距比:SKIPIF1<0 30.绕组节距:SKIPIF1<0 31.绕组短距系数(基波):SKIPIF1<0 32.绕组分布系数(基波):SKIPIF1<0 33.绕组系数(基波):SKIPIF1<0 34.预计每极磁通 SKIPIF1<0 35.每相串联匝数初值 SKIPIF1<0 36.取并联支路数SKIPIF1<0 37.每槽导线数: SKIPIF1<0取SKIPIF1<0 38.每相串联导体数:SKIPIF1<0 SKIPIF1<0 39.线负荷:A=SKIPIF1<0 5.3定子槽型尺寸(选取梨型槽) 40.选定槽口尺寸: SKIPIF1<0 41.定子齿距:SKIPIF1<0 SKIPIF1<0 SKIPIF1<0SKIPIF1<0 42.定子齿宽度: SKIPIF1<0 式中:SKIPIF1<0:铁心叠压系数,取0.92 SKIPIF1<0:定子齿磁密,取1.40SKIPIF1<0 取SKIPIF1<0 43.槽形尺寸如图5.1: 图5.1定子槽形尺寸 SKIPIF1<0 SKIPIF1<0 SKIPIF1<0SKIPIF1<0 则定子齿计算宽度: SKIPIF1<0 44.定子槽深:SKIPIF1<0 45.槽面积,取槽锲厚度SKIPIF1<0,如图5.2所示: 图5.2定子槽尺寸 SKIPIF1<0 SKIPIF1<0 =SKIPIF1<0 46.槽绝缘面积取:SKIPIF1<0 SKIPIF1<0 SKIPIF1<0 =SKIPIF1<0 SKIPIF1<0 取槽满率为75%,绕组并绕根数为SKIPIF1<0 则绝缘导线直径:SKIPIF1<0 查表取铜对应的标称线规QZ: 标称导线直径d=1.60mm漆膜厚度0.06——0.11 47.定子导线截面积(查表得): SKIPIF1<0 48.定子绕组电密:SKIPIF1<0 49.发热参数:SKIPIF1<0 5.4磁路计算 50.定子齿计算高度:SKIPIF1<0 51.定子轭