凸极同步发电机电磁计算程序.docx

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1、1 .额定电压2 .额定转速3 .额定频率4 .额定功率因数5 .额定电流6相数7 .确定功率：凸极同步发电机电磁计算程序5.1额定数据和主要尺寸UN = 600妙nN = 1500, /min/ = 50 HZcos 甲=0.8I N = 80Am=3P =诲3x 600 x 80 x 0.8 x 1.1 = 73.16kw8 .根据功率取对应T2X-250L电机，额定功率p= 75kw9.效率n = 9 1. 4%120 f 120 x 50 ,10 .极数2p = = 4nN 150011 .计算功率：P，=KePncos甲_1.08 x 750.8=101.25 kw式中5=1.08

2、(对于同步发电机取值)12 .极弧系数：极弧长度b = (0.630.72)i p取a , =P = 0.67 p T13 .气隙磁密 B,= (0.1 . T7 取 B,= 0.8T14 .取线负荷 A = 2 8 0KA /m 28 A C m15 .电机的计算体积6.1x103 P；f_ a K K - A - B 厂p- B- dp16 N_6.1 x 103 x 101.25 x 103=0.67 x 1.11 x 0.92 x 28000 x 0.8 x 1500=27.1 x 10 - 3 m 316.主要尺寸比：0.62.517. 定子铁心内径取值范围27.1x10-3 x 4

3、=/ = 0.23990.3860mDil3(0.62.5)兀18. 定子铁心铁外径：2 =1.420 =1.42(0.23990.3860)= 0.34070.5481m按标准选取D = 430mm1D = i =牝 302.82cm 牝 300mm则定于内径：i1 1.42 1.4219.定子铁心有效长度:l n lef =D 2 - lefi1D 2i127.1x10-303n 0.3011m n 300mm20. 定子铁心净长度：l = K （l-nb ）= K -1 = 300x0.92 = 276mmFet Fetk k Fet式中Kf =0.92（对0.5mm厚硅钢片）在对发电机

4、的计算中,nb不计入l中 k kFet本次设计选用的硅钢片型号为：DR530-50对应的老牌号为D2221. 磁极铁心总长度：l = l = 300mm22. 磁极铁心净长度：l = K -1 = 0.95 x 30 = 28.5cm式中 匕 =0.95 （对于11.5mm厚钢片）23 .极距：t = Du = x 300 = 235.5mm2 p424.圆周速度: T ,v = 2 f = 23.55m/ s100025.气隙长度:最小气隙:5 =(0.25 0.30) 兰 KB c5=(0.25-0.30) 280x 23.55 x 0.5 = 1.03031.2364mm0.85 = 1

5、. m m最大气隙:5 = 1.55 = 1.65mmM26. 铁心的计算长度：l = l + 28= 300 + 2x 1.1 = 30.22cm5.2定子绕组27. 每极每相槽数：q = 428. 定子槽数：Z = 2pmq = 4 x 3 x 4 = 48槽29. 取绕组节距比：p = 5630. 绕组节距：V = P mq = 6 x 3 x 4 = 1031. 绕组短距系数（基波）:32. 绕组分布系数（基波）:33. 绕组系数（基波）：34. 预计每极磁通冗、K = sin（P.万）=0.966兀sin% =2 = 0.958q - sin2mqK. = K K =）.925=0.

6、8 x 0.67 x 0.2355x 0.30 = 3.79 x10- 2 wb35 .每相串联匝数初值N =n =600/拓=44.5取44匝4.44fKp 件4.44x50x0.925x3.79x10-236.取并联支路数a = 237.每槽导线数:取 N = 11sv 2amN 2 x 2 x 3 x 44 N = 11s Z4838.每相串联导体数：n = ZL =竺四=88 S ma 3 x 2N =竺=44匝239.线负荷：A=叫n = 3x88x80 = 224.2A/cm 兀 D3.14x30i15.3定子槽型尺寸（选取梨型槽）40.选定槽口尺寸:b = 0.3cm、h = 0

7、.1cm、h =0.15cm、h =1.1cm、齿靴角 a = 300sososis 2丸D丸x 3041.定子齿距：t =a = 1.9625cms Z 48ikDi + 2 (h + h )兀30 + 2(0.1 + 0.15)si z48. cm1兀D + 2(h + h + h )兀3(+ (2 0. 1 + 1 5 1. 1t = -心_s 2= _L = 2. 1 3cm1兀 D + - (h + h + h ) 兀 30 + -(0.1 + 0.15 +1.1)i13 o 1 s 1 1 s 1 233Z48142.定子齿宽度:bt1=4AK - BFe t11.9625 x 0

8、.80.92(1.401.60)=1.06661.2189 cm43.式中：Kf :铁心叠压系数，取0.92B :定子齿磁密，取1.401.60T取 b = 1.1cm槽形尺寸如图5.1：b = t - b T.9952 1 .=1 0.8 m 冥 cm0.9 s1 s1 t1 b 1180。 0.90 180。R = -2 + h -tg + -tg 48 = 0.52cmib 2 = t2 - 2R = 2.139 -1.04 = 1.099cmb 广 t 1 b = 2.021 - 0.90 = 1.121cm则定子齿计算宽度：bb = b2 +2七=L099 + 2xn。1.10cm

9、ts 3344.定子槽深：h = h + h + h + R = 1.87cm s sos1s2s45.槽面积，取槽锲厚度h = 0.25cm，如图5.2所示:图5.2定子槽尺寸专，二芝A = Rs + bs1 (h + h h) + Rs2s 2s1s 220)+y.52=2x y 0(190= 1.39cm246.槽绝缘面积取：5. = 0.03cmA =52(h + h ) + (兀 + 2)R +b i i L s1s 2s s1=0.03x2x1.25+(2+i )x0.52 + 0.90= 0.182cm2A = A - A = 1.39 - 0.182 = 1.21cm2 取槽满

10、率为75%,绕组并绕根数为N = 3=0.1658如,： X 75%-1.21X 0.75则绝缘导线直径:d = ：七飞 3 X11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0.060.1147. 定子导线截面积(查表得)：q = 2.0106 mm 2 a48. 定子绕组电密： j =七一=6.63 A / mm 2a aNq2 x 3 x 2.0106t a49. 发热参数：A. = A j = 224.20x6.63 = 1486.45A/cm5.4磁路计算50. 定子齿计算高度：h = h + h + R = 1.25 + 些 =1.42cmtss1s 23351

11、. 定子轭高度：h = D1 - D1 - h = 43 - 30 -1.87 = 4.63cmjs 2 s 252 .定子轭计算高度：h .= h . + 3 R0.52=4.63 + =4.80cm353.定子轭磁路长度：l =Jd - h)=(43-4.8)= 14.99cm js 4 p 1 js 854.极靴宽度:= (D. - 26 ) sina 1800p2 p= (30-2x0.165)xsin 爵7X 180 = 14.835cm455. 磁极偏心距:bp = 30。D - 26i1 mH =D m-a)(Da ,广6)其中 0 = arcsin2(n-6)-(.1 -6 )

12、cos0 122 m 10.55 x(300 - 2.75)w/300 、，300 12(-1.1)-(-1.65)cos30。22=4.00 mm56. 极靴圆弓瓜半径R =21 - H 8 =3 ；。 4.00 1.1 = 144.9mm57. 极靴边缘高度：h =2.5mm（设计时取值）58. 极靴中心高度：h =（i + h 一8）（导8），cos。/ 300八仃、/300=（F 2.5 1.1） （1.65） cos30 2 2=22.93 mm59. 初取漏磁系数：b =1+史 = 1 + = 1.047t 0.235560. 磁极宽度（磁极尺寸如图5.3所示）：X104 = 9.

13、20cm1.047 x 3.88 X10-228.5 X1.5561. 转子轭内径：D = 80 mm = 8cm(取值)62. 转子轭外径：D = 165mm = 16.5cm、-163. 磁极中心高:h = (D, D- h 8=-(30 16.5) 2.293 0.112=4.357cm64 . 磁极侧高度 ：h、 = h +.mm2-(1 cos 0 )2式中0 = a rb _ C m S 1j9 .n 1 62 =a.r c s I n 53 3 .8 94.357 +16.5(1 cos33.89)2=5.7595 cm65 .转子轭高度:hjr16.5 82=4.25cm66.

14、转子轭计算高度：h = DjDr +1 D* |2 p .2,4；牛8r 2 i * iri6;8;10j= 4.25 +1 x8= 5.586图5.3磁极尺寸67.转子轭磁路长度:兀、兀、l =厂(D - h .)= (165 - 55.8) = 4.2861cm68. 转子轭轴向长度：l = 31.2cmrl 、3069. 磁极与轭间残隙：52 =(300 + 0.8)x 10-2 =(300 + 0.8)x 10-2 = 0.09cm70.实际极孤系数:b2R arcsin-p-pt180。2 x 14.49 x arcsin14.8352 x 14.4923.55兀x180=0.667

15、1. 气隙比：?=1.572. 最小气隙比极距：5 = H = 0.00467t 23.5573.基波磁场幅度系数：匕=A1B1 = 1.0836 (查湘潭电机厂-交流电机设计 手册)74.三次谐波磁场幅度系数：3 = a(A3B3 -0.6) = 0.0485521、75.磁场分布系数：f = (a + a ) = 0.7d 兀 13 376.磁场波形系数：f=% = 1.0946 J d77. 直轴电枢反应磁场幅度系数：Ad 1 = AdBd = 0.9856 （查湘潭电机厂-交流 电机设计手册）78. 交轴电枢反应磁场幅度系数：A = AB = 0.52（查湘潭电机厂-交流电机设计手册）

16、“一. A79. 电枢磁动势直轴折算系数：K =-A = 0.909ad aA80. 电枢磁动势交轴折算系数：K =t = 0.4799181. 定子卡氏系数（对于半闭口半开口槽）：19.625 x(4.44 x 1.1 + 0.75 x 3)_(4.448 + 0.75b )S81 (4.448 + 0.75b”) b19.625x(4.44xl.1 + 0.75x3) -32=1.0782. 阻尼笼卡氏系数(阻尼笼尺寸如图5.4所示):K = (4.448 + 0.75b“)= 182 = (4.448 + b )-*2 = dd d图5.4阻尼笼尺寸83.卡氏系数：K8 %K8 2 1.

17、0784 .空载每极总磁通：中U 4n 2fbfkpN600-32 x 1.0946 x 50 x 0.925 x 88=3.88 x 10-2 wb85.气隙磁密（最大值）：BO中X104 =，lfi d3.88 X10-223.55x30.22 x 0.7X104 = 0.7788T86.定子视在齿磁密：t I. B Bl OFetB=ts bts (；)1.9625 X 3022 X 0.7788 = 1.4928T1.12127.6查表：B W1.8T则B = B =1.4928T87.定子轭磁密：B = x104 = 388X10-2 x104 = 1.5181T js 2h lF

18、2 X 4.63 X 27.688. 气隙磁压降：F = 0.85 k&. B x 104 = 0.8 x 0.11x1.07 x 0.779 x104 = 733.5A89. 定子齿磁压降：F = h H = 1.42 x 26.848 = 38.124 A式中H对应于B，查磁化曲线B25=1.48T得H =26.84890. 定子轭磁压降：F = l H &= 14.99x31.158 x0.324 = 151.327A式中：&为轭部修正系数氏=0.324H.对应于B ,查磁化曲线B25=1.48T得H =31.15891. 气隙、定子齿、轭部磁压降之和：F& = F + F + F =

19、733.5 + 38.124 +151.327 = 922.951 A92.计算漏磁几何尺寸:9.214.835y = arctg项=arctg= 25.31 D. + 2h -h16.5 + 2x4.357-5.7595=arctgp= arctg，= 37.33Dr+ 2h -h 16.5 + 2x4.357 5.7595=b2 +(D + 2h + h)22 sin(1800-y )P jr m p2 p 2=14.8352 + (16.5 + 2x 4.357 + 0.25)22 sin (45。- 37.33。)3.933cm=bm +(Dr +hm)22 - Sin(127 T 1

20、)=9.22 + (16.5 + 4.357)22 sin (45。- 25.3。)= 7.68cmh = 1(2h + h ) = 1(2 x 2.293 + 0.25) = 1.61如 pm 3 p p 393. 磁极压板厚：d = 0.6cm94. 磁极压板宽：b = 8.6cm95. 磁极计算高度：l = l +2d = 30 +1.2 = 31.2cm96. 极靴漏磁导：mA = mp + 7.32h lg (1-p)p apm2 app5 x 30 x1.61兀 14.835、+ 7.32 x 1.61 x lg(1+ x)3.9332 3.933=71.3097. 极身漏磁导：A

21、 = 25mhm + 3.66h xlg(1 + %bm) m am 2 a2.5 x 31.2 x 5.7595兀 9.2、7.68+ 3.66 x 5.7595 xlg(1 + x )2 7.68=68.1898. 磁极漏磁导：A = 1.(A +A ) = 1.1 x(71.3 + 68.18) = 153.42899. 每极漏磁通：4 =A七.x10-8 = 153.428x922.951x10-8 = 0.1416x10-2wb100. 漏磁系数：=1.03650.1416 x10 -23.88 x10 - 2b与b之差应小于5%101. 磁极磁通：4 =4+、= (3.88 + 0

22、.1416)x 10-2 = 4.02 x10 -2 wb102. 磁极极身截面积：S =七-b + 2d b = 28.5 x 9.2 +1.2 x 8.6 = 272.52 cm 2103. 极身磁密：B =匕x104 = 4.02x10-2 x104 = 1.4751TS272.52104.105.106.107.108.转子轭磁密：B 广 X104 = 24?5；10i2 X104 = 1.1545Tjr r残隙处磁密：B202X104 =4.02 X10-2300 - 92X104 = 1.93Tmm极身磁压降：F = H -h = 24.4x4.357 =110.70A查磁化曲线B

23、25=1.48T表可得：H =24.4对应于Bm 转子轭磁压降：F = l H = 4.286x7.7455 = 33.1929A查磁化曲线B25=1.48T表可得：H . =7.7445 残隙磁压降：F2 = 0.85 2 B 2 x 104 = 0.8 x 0.009 x 1.93 x 104= 13 8. A6109. 空载每极磁压降：七=F. + F + F + F2 = 1205.80A5.5稳态参数110. 定子线圈尺寸(如图5.5所示)：=.b + 2R + (0.20.4) =. 0.9 + 2 x 0.52 + (0.20.4)ac - arCsm+12- wcsm 1.99

24、52 + 2.139=3 1. 1 34.彳 7。0取30度图5.5线圈尺寸定子线圈节距:兀D +2( h + h ) + h + R qT = i1sos4s2s Py2 p兀30 + 2( 0.1 + 0.15) +1.1 + 0.52 5=x = 21.01cml = = 21.01= 12.13cmF 2cos a 2 x cos30。c七=l + 2lD = 30 + 2 x 2 = 34cml参考值取 l =2.0 cm111. 线圈半匝平均长度：112.l = l + 2l = 34 + 2 x 12.13 = 58.26cm 定子绕组相目电阻：R = Pca% = 0.0217

25、 x 58.26x 88 = 0.0922Qa (75 C) a N - q x100 2 x 3 x 2.0106 x100式中 p =0.0217 Q mm2 / m113.定子槽比漏磁导：.3P+1 h 9P+ 7 h人 s0 +s2-s 4 b 0163b 10.1+0.3161.13 x 0.9114.115.mT人 =h 128 K 5116.每相漏抗:(Nal)1 x 人 +人 +人) 100 10 100 q s e hf li50 30.22 ( 88 A xxx4100100.792 ( 1Ax -x0.660 + 0.335 + 0.29414)=0. 18S15=0.6

26、6定子绕组端部比漏磁导：、0.3m t0.3x3x 23.55 g 5人 V 3P 一 1)=3022 x(3 x -1) = 0.335谐波比漏磁导：3 x 23.55,0.92、x ()2 = 0.294 12 x 0.11x1.073 x 4117.漏抗标么值:X* = X = 0.1835x80x3 = 0.0424 s s UN600118.相电阻标么值:R*= R（、 = 0.0922 x 803 = 0.0213a （75。）aGG U 帕600119.每极电枢反应磁动势:F = 45 吧 匕=0.45 x3 x 80 x 88 x 爵25 = 2197.8A a2 p120.电

27、枢反应直轴折算磁动势:121.F = K - F = 0.909 x 2197.8 = 1997.8A 电枢W应交轴折算磁动势：122.F = K - F = 0.52 x 2197.8 = 1142.856 A 直轴电枢反应电抗:X * =一 = 一19978=2.2898ad F + F2733.5 +138.96123.交流电枢反应电抗:124.直轴同步电抗:125.X * = X * + X * = 2.2898 + 0.0424 = 2.3322 交轴同步电抗:X* = X* + X* = 1.3099+0.0424 = 1.3523126.短路比：K* =裳=12058 = 0.6

28、03 c F 1997.8ad127.内功率因数角:W = arctg SinP + * = =1142.856 = 1.3099aq F + F的 733.5 +138.96*= arctg 爵十一3523 = 67.18。cos甲 + R*（。、0.8 + 0.0213a V5C128.额定功角：。*甲=67.18。 36.87。= 30.31。则.cos。= cos30.31。= 0.8635.6额定负载时励磁磁动势和励磁绕组129.130.额定负载时内电动势：E* = 1 + R* cos中 + X * sin 中 + (X * cos中一 R* sin 中)i a 75/ssa 75

29、/=1 + 0.0213 x 0.8 + 0.0424 x 0.6 + (0.0424 x 0.8 - 0.0213 x 0.6) = 1.04248 + j 0.02114=1.0427 Z1.16额定工况时磁路计算： =E Q = 1.0427 x 3.88 x 10-2 = 4.046 x 10-2 wb N iB = EB = 1.0427 x 0.7788 = 0.812TS Ni SB n = E B = 1.0427 x 1.4928 = 1.5565T当B、 1.8T时 B n = B、= 1.5565TB = E B = 1.0427 x 1.5181 = 1.5829TF

30、= E F = 1.0427 x 733.5 = 764.82AF = h H = 1.42 x 40.32 = 57.25A式中H n对应于B n查磁化曲线B25=1.48T得, Hn = 40.32F顼=l. H n .&n = 14.99x47.87x0.305 = 218.86A式中H n对应于Bn查磁化曲线B25=1.48T得, H s = 47.87J查资料(中小型电机设计手册)得,&n0.305F：n=F n + FsN1040.93AN=A F x10-8 =153.428x1040.93x10-8 = 0.1597x 10-2Wb NS tjN N=1 + 箜冬=1.0395

31、4.046 x10-2mN=Q N +、= (4.046 + 0.1597)x 10-2 = 4.2057 x 10-2WbBmN中 fmN x104sm4.2057 x10-2 x104 =1.54337272.52BjrNJx104 = 4.2057x10-2 x104 =1.58587 2h l2 x 4.25 x 31.2竺* x104 = 4.2057 x10-2 x104 = 1.52387 l - b30 x 9.2F N = h - H N = 4.357 x 32.336 = 140.88A式中H n对应于B n查磁化曲线B25=1.48T得, H n = 32.336F =

32、 l. -H= 4.286x48.74 = 208.90A式中H n对应于B项查磁化曲线B25=1.48T得, H = 48.74F2 = 0.852 Bg2 x 104 = 0.8x0.009x 1.5238x 104 = 109.71 A131.额定负载时每极磁压降：F广 LK Fn + F N + FmN +F 2 TgA132 .额定负载时励磁磁动势：F = 1.05F 1+(ad)2 + 2adxsin(中+ )2fN ei F F eiei1857.101500.421 sin 38。21857 10= 1.05 x 1500.42 x 1+()2 + 2 x1500.42=317

33、2.85 A133. 取励磁绕组每极匝数：Wf = 160匝134. 额定励磁电流：I = =32.85 =19.83AfN w 160fF 1205 8135. 空载励磁电流：I = f0 = 7.536Af 0 W 160f136. 取励磁电流电密（取值）：七=3.8A/mm2、（七=3.85.5A/mm2）137. 励磁绕组导线截面积：q =T =.83 = 5.22mm2f j 3.8f138. 励磁绕组线规：axb = 3.55x1.5励磁线圈的尺寸如图5.6所示：图5.6励磁线圈尺寸139.第n层线圈平均匝长度：（2n 1）、=2Q + W +兀（r +（ 2 1 b）=29.16

34、+28 +兀（0.51 + （n 0.51 x 1.51=72.81+9.42 n式中町一一线圈框架直线长度Qm线圈框架直线宽度r框架圆角半径:导线长边尺寸n =1为第一层n =2为第二层140. 励磁绕组平均匝长度：l =- = 90.87cmcf W fnf 第n层线圈匝数141. 励磁绕组电阻：R= 0.217x 2 pWLf = O.217x4 x160 x 90 = 24176qf（75C）1000100 x 5.22.f142. 额定励磁电压：U = I R+ 0.6 = 19.83 x 1.15 x 2.4176 + 0.6 = 55.732V0.6V为If而压降，励磁绕组取B级

35、绝缘励磁绕组E级绝缘R（ 11 =1.13 Rf（75。C）励磁绕组B级绝缘R（y）=1.15 Rf（75。C）励磁绕组F级绝缘R（5）=1.244 Rf（75。C）143.空载励磁电压:144.U I R + 0.6 7.536x1.992+0.6 15.6VRf20 0.824Rf75 0.824 x 2.4176 1.992 电压调整率：u Eonn x 100% 607 620 100% UN600=1%x45.7阻尼绕组设计145.每极阻尼笼条数:146.n 5每极定子绕组截面积：147.Q mqN N q 3 x 4 x 3 x 11x 2.0106 796.1976 mm2 每根

36、阻尼条截面积：Sd 0.2Q 0.2x 796；976 31.848mm2 d148.阻尼条直径:d = 1.13丘1.13 100心-0.63cm100149.阻尼槽节距:a -t d (1 1.5)dn 1d0.0. t91.s1.12sO.66 x 23.55 O.63 L5) 2.23552.3188cm取 t =2.25 cmd150.阻尼笼最大磁密：=1.2442T 2db 0.75d取 1.5 cm取 0.5 cmby图5.7端环尺寸5.8损耗与效率152. 定子齿钢片重：G = Zl h bx7.7x10-3t 1 Fet ts ,1、ts(3)=48 x27.6 x1.42

37、x1.121x 7.7 x10-3=16.238 kg153. 定子轭钢片重：G =(D h ) h l x7.7x10-3js1 js js Fet= n(43 - 4.8) x 4.8 x 27.6 x 7.7 x 10-3=122.358 kg154. 材料单位损耗：50= 2.5/kg (查资料可得)155. 齿部单位损耗：p = ,0/50B2n = 6.05W/kg156. 轭部单位损耗：p =匕0/50 B2n = 6.26W /kg157. 定子铁损耗：P = K p G K p GF et t t j s j s=2 x 6.05 x 16.238 +1.5 x 6.26 x

38、122.358=1345.42W式中 Kt = 2 (nP 1 0 0 k V A )s K n= 1. 5 (P 1 00kVA)158. 磁极单位表面损耗：,Z n 、， 一、P = K ( 1 N )1.5(B t x10)2bm bm 100000s（48 x 15001.5，、=2 x （0.178 x 1.9625 x10）2 = 471.5w/ m210000 J式中：气 =2（钢片厚1mm）1P1 T0.22 J=0.205B K B = 0.20x5 1 x07 供.812159. 磁极表面损耗：九=2 P : lmPbm x10一4=4 x 0.66 x 23.55 x 3

39、0 x 471.5 x 10- 4=87.94W160. 定子绕组铜损耗:PC 1 = ml?R ）= 3x 802 x 0.0922 = 1770.24W_J R 75o E, B级绝缘式中 Ra（x）= I Ra（75） F, H级绝缘（115。）161.励磁损耗：P = f E* 0.6 6押Cuf门f19.832 x 2.4176 + 0.6 x19.8309=1069.52W式中R=| Rf （75。 一 E, B级绝缘式中 Rf（x）Rf（115O） F, H级绝缘门f 励磁系统的效率162.机械损耗：P = 16（ V）3 . : 4m x 103mex40 19=32 x（竺5

40、 ）3 .J40 19=259.396W163.附加损耗:164. 总损耗:165. 效率：0.8P = 0 x 103 = 0.012 x 75 X100。-mW adCOS 中 P = P + P + P + P + P + P5&5 7. 5 1 6WF e Feb 1 C u c u f m e x a d p、门=(1 - )x 100% 9 2. 9 2 %N5.9瞬态参数和时间常数166. 励磁绕组漏抗：一. F 一 4、X*f = 6.4Kli气飞x10-6 +(-xK d -1) X*d2197.8, 4、=6.4 x 0.8452 x 30.22 x 0.794x+ ( x

41、0.845- 1)x2.2893.88 x 10-2-=0.4人-h h2h + 0.5bfs -奇 a Wm5.75951.612x5.7595 +0.5x9.2=+式中 3 x 7.68 3.9334 x 30= 0.794167. 励磁绕组电抗：X* = X* + X* = 0.4+2.2898 = 2.6898168. 阻尼绕组直轴电抗：X *ds7.9Fli 八 n dsx 10-8 =7.9 x 2197.8 x 30.225 x 3.88 x10 -2x 10-8 x 1.33 = 0.03597式中：A = 0.623 + hm + 0.06 二=1.33dsb l169. 阻尼绕组横轴电抗(对于全阻尼)：X * = 0.75 X 二=0.75 x 0.03597 = 0.02697170. 直轴瞬态电抗：X = X* + X*ad X*fs = 0.0424 + 2.2898x0.4 = 0.3829d s X *2.6898f171. 交轴瞬态电抗：X =