疯狂系列工控培训教程、手册合集03电机经典问答

1、 1-1 仁, I0 F0 0, 仁仁 d0dtd0dte Ne N1122仁 e e , N121N2, e1e2, , U1E1, U1U2始 仁U2E2始1-2e1 N1e2 N 2d0dtd0dte Ne N1122,U1 U 2U1 U1 N1 , 1 U1U N22NNNN U1 E1,U2E2 ,121 E1 4.44 fN1 m N1 m U 2 4.44 fN 2 m U2 U11-3 1-4 0.35 僘 0.35mm 1-5 www PLCworld cn:,僘 ,儈,:,:1-6 仍仍 U1N 仍 U2N 仍 50kVA,U1N /U 2 N 10500 / 230V

2、D-50/10 SN1-7仍S50 103 N 4.76 AI1NU10500仍1N50 103S N 217.39 AI2 NU230仍2 N/U 2N 220 /10.5kV1-8 SSP-125000/220 YNd U1N仍仍仍仍 220kV ,U 2N 10.5kVU1N.仍SN125000I 328.04 A1N3 2203U仍1NSN125000I 6873.22 A2 N3 2303U仍 YNd 2 NU1N 2203 127.02kV3仍 U1N= I1N 328.04 A仍 I1N U 2N 10.5kV仍U 2 NI 2 N 6873.22 3 3968.26 A3仍 I

3、2N=2-1www PLCworld cn仈仈1. 2 99% 1%3価嵌 的嵌廉 的廉慎価 0 1 F 0 0 1 2 0 2 1 F 1 2 F 2 .2-2 I 0 N1 0RR的嵌 嵌始 箱 mmU1mU E 4.44 fN 4.44 fNm 1 m 花廉 111仁 f lSRmRl, S m 価 Rm 価仁価必媒情 必媒慎 価価価価亦必媒担 嵌 儈仍 必必嵌 的嵌 廉廉嵌 的嵌 廉廉嵌 的嵌 価価www PLCworld cn仍価儈 必必嵌荷 価価亦儈 廉廉嵌荷 価価 廉廉嵌荷 儈 必必嵌荷 価亦 仍価仁U1mU E 4.44 fN 4.44 fN仍m 1 111N N N i2Nl

4、S 0 1 0 11 0 1 RLmmiii RR価始 000 mm xm Lm U1I0 xm始 U1IKx始Ku (r cos x* sin )*始K2K227仍 r1 I0 仍 E. E1 E1 I 0 r1 I 0 (rm jxm ) j I 0 x1 I0 r1 I 0 Zm I 0 (r1 jx1 )U1 r1 Zm I 0 密 0 I U1 / r1 r1 0 E1 E1必旋 情旋嵌属必必嵌 情旋嵌U1U E 4.44 fN m4.44 fNB111m 1 儈 m m 始 価価 Rm 2 f 1 3I N R p BIBwww PLCworld cn0 1mm 始 0 Femm

5、2 rIp始 Fe 1 0N1k 2N 2必普 必廉嵌 必 廉 E1 4.44 fN1 m m Bm 始価U1 Rm m 始 Rm I 0 N1 I 0 p B2 f 1 32 rBpIFem m 始 Fe 1 02-102-10 U1U E 4.44 fN m4.44 fN廉 联m 始1 始111 mBm S Bm 価 S始 m lSRmI N R 0 1mm 2 1 3 pFe Bm flSRm必U1 mSBm U E 4.44 fN m4.44 fN111m 始1 m 価2 f 1 3p BI N RFFem0 1mm 0 N 22N N iNNx L 2f 0 1 0 11 0 1 L

6、 1 mmmiii RRRR始 始m000 mmm2 rpI(rR Fe 0 m m 0 m rm zmjxm rmxm E1 4.44 fN1m 情 U1U1 mBm m4.44 fNSwww PLCworld cn始1 m 価E1 I 0 zm I 0 zm rm U1jxm 必媒廉廉 価U1U E 4.44 fN m4.44 fN111m 始1 始始始m mSlSRBBmmS m m 価 m Rm I 0 N12 1 3 Bm fpFeN 22N N iNNx L 2f 0 1 0 11 0 1 L 1 mmmiii RRRR始 始 m 000 mmm N1 N1 N1 mmB I R

7、p BIRpm m 0 0 m m Fe Fe k (k 1)B k B (k 1)R k R (k 1) k N (k 1)Nm1 m1m1 m1m2 m213 13 R k k Rk k mm 1 m 2 m 1 2II00p B2 f 1 32 rk NkN(r3 13Fem 0 mm 12I 2 r k 2k2 r 2 r B kp m 0 m2 12 m 1 Fek 2 m122 r2 r2 rk 1pk 1RBIkkFe m 3 m3 m3m0 m2r rz r jxr xmm mmm mm 212 60 50 E1 4.44 fN1 m f 60Hz 50Hz 仁 f 1/1.2

8、U1 1.2 Bm 1.2 価 Rm m 始 Rm I 0 N1 I 0 2 1 3 Bm f pFewww PLCworld cn2 1 3 Bm f措嵌畸z pFe11.2p (1.2B )2 (f )1 3Fem担嵌畸z p1.22 1.20 7 1.14 Fep1.21 3Fe L 2fL 仁 xx1 x2 x * sin ) (r r ) cos (x * x * ) sin u (r * cos* u 212K2K2122x1 x2 必媒廉情価 U1U E 4.44 fN m4.44 fN111m 始1始始始 m mSlSRBBmmS m m 価 I 0 N1 m Rm F0 2

9、1 3 pFe Bm fN 22N N iNN 0 1 0 11 0 1 x L 2f 1 Lmmmiii RRR000 mm始 m始B RxB m m m m m m I R p IRp0 0 m m Fe Fe k (k 1)B k B (k 1)R k R (k 1)m1 m1m1 m1m2 m2 R k k R mm 1 m 2 m k k IIp B2 f 1 301 2 0NNFem112I 2 r B r p m 0 m Fek k22 k2 m2 r22 r112(rRpBIrm m Fe0 mm0 mmr 2 1k m2rz r jxk 1r r xrm m mm mmmm2

10、2 f 1 3p BI 2rwww PLCworld cn価Fem模0 m 220 /110V I 0 I I 0 II 必媒U1N/U 2 N亪 慎慎嵌荷 始 r1 , x1 亪 慎慎嵌荷始2-15 E1 E1 I 1 r1 E1 0 E1 1 U 1 E1 I 1 (r1 jx1 ) E2 E 2 I 2 r2 E2 0 E 2 2 ,U 22-16 E 2 I 2 (r2 jx2 ) F 0 I 0 N1 I 1 N1 I 2 N 2 2 , I 0 N12-17 TTr1x1r2 x2 Z Lr1 x1r2,x2 rm ,x mr1x1I 1r2 x2 Z U 1Lwww PLCwor

11、ld cn-r = r +r -xk= x1 +x2k12rm , x mrKxKZ U 1Lrk, xk-2-18 a(b) UU 1 2UU 1 2I r1 Kj I 1 xKj I1 xKI1 rKU 1 U U 12 U 2I1I1I I 12 U 2I 0rmI I 1L2xU m2I 0I 1rmI 2EU1U 12xa(b)b2-19 1 23 220傼儈傼仍 仍 仍傼傼儈 1 2傼U1NU 2 NU E 4.44 fNm1m24.44 fN4.44 fN仍 m12 m1 U1N N 2KU 2 NN 2 1 m2U 2 N N1U 2 N m1 m 2 価KN 2lR mSF

12、IN R R m m m mI 01 I 02N 21www PLCworld cn F02 I 01 N1 I 02 N 2 F01N1K儈傼儈 K I01I02I (%) 100(%)I (%) 100(%)0102II1N2 N KI 01 , I 2 N KI1N I 02 I 01 (%) = I 02 (%) pFe Bm f2 1 3 U1N U 2 Nz, zm1m2I KI ,U KUz K 2 zII2 N m 2 儈02011Nm10102 zm1 zm2 K 2 ,価価仍傼仍2-21 傼儈傼仍傼 仍 UKPK 仍 IN 儈傼傼儈儈 1 2z(r r )2 (x x )2

13、儈仍K11212U(%) I1N zK1 100(%)p I2 (r r )K1U IzUK1 cu11N12KN11N1Nz(r r (x x)2)2仍K 21212I 2 N zK 2U(%) 100(%)p I2 (r r )K 2U IzUK 2 cu 22 N12KN 22 N2 N1K 21r K 2r , r x K 2 x , x xr22 112211K 2r1r r r K 2 ( r ) K 2 rK1122K 2K 21 x ) K 2 x2K 2K 2儈 K 2 儈 K 2 1www PLCworld cnpcu 2 儈 II2 Np cu1!NK KUK 2 儈 K

14、 UK1 KU 2 N UK1 (%) UK 2 (%) 儈U1N 儈rK , xK 仍傼価pKNpKpKUKN UKUK2U Ip IKNNKNN222IIIIIINKNkKk222 仁 2 0 01 U22 E13 m u (r * cos x * sin )1k2k2 (1 u)U 2 N =0 u 0 U 2 N U 22 0 =1 u 0 U U 2 o2N 02 0 o E1 I 1 (r1 jx1 ) E1 I 1 Z1 I1 2U 1 I 1 Z1 E1 I 1 Z1 E1 I 1 I 1 Z1 E1 E1 E1mE1 4.44 fN 4.44 fN1 E1 3m 1 m m

15、m mB Bm Bm Bm mS2-23 I02r1 ,U 1 E1 I 1 (r1 jx1 ) E1 I 1 Z1 www PLCworld cnE1mE1 4.44 fN 4.44 fNI 1 ZE1 E1 1 1 m 1 mSBm 2 f 1 3p BFem E1 E1 U1 ) 2-24 2 0 2 ) I 0 I 2 I 1 N1 I 2 N 2 I 0 N1 N1K I 2 I 2 u (r cos x * sin )*Ik2k22 N 2 0 u 0 U 2 (1 u)U 2 N 儈儈儈U1U1 4.44 fU E 4.44 fN mm4.44 fNNm 11111 4.44 f

16、N 2 m 儈儈U 2 U 2 4.44 fN 2 m 儈2-25 仍 5 儈仍U1N=1100 U2N=110 仍 2 1100 102U1NK 2U 2 N2 1101SN5000I 2.273A1N2 110050002U1NSNI 22.73A2 N2 1102U2 N 2 1100 20 110K 2U1NU 2 N2www PLCworld cnSN5000I 2.273A1N2 11002U1NSN 5000 45.45AI2 NU1102 NU1N1100K 52 1102U 2 N3SN 5000 4.545 AI1NU11001NSN5000I 22.73A2 N2 110

17、2U2 NK U1N 1100 10U 2n1104SN 5000I 4.545 A1NU1100 50001NSNI 45.45A2 NU1102 N/U 220 /11kVU1N2 N32-26 S =20000kVA f =50 NN傼U0=11kVI0=45.4AP0=47W傼儈Uk=9.24kVIk=157.5APk=129W傼 150C rk2r r ,k2121儈T23仍cos2 1cos2 0.8(2 0) cos2 0.8(2 0) cos2 0.8(20) 4仍5 cos2 0.8(20) U11103 0 242.29zmI45.410p47 103 0 22.8rm24

18、5.42I0 xz 2 r2242.292 22.82 241.21www PLCworld cnmmm220 311 U1N 11.547KU 2 Nr K 2r 11.5472 22.8 3040儈mm儈 xm K 2 x 11.5472 241.21 32161.3m9.24 103U K 58.67zkI157.5儈KP129 103 k 5.2rk2157.5I儈kx z 2 r58.67 2 5.22 58.442儈kkk235 75 r 235 75 5.2 6.448rk 75o C k 75o C235 15235 152r xk6.448 58.44 58.8222 75o

19、 C zk 75o Cok 75 Crok 75 C 6.448 3.224r r 1222T 58.44 29.22k22T(220 103) 2U 2U24203 1N 1Nz1N20000 103I1NSN3r 3040*r m 1N 3.77m2420z3x32161.3* m1N 39.87x m2420z3r * rk 75o C6.448 0.008k 75o C2420z1N3xk58.44x* 0.0724k2420z1N3r * 0.008 0.004k 75o Cr * r * 1222T*k0.0724 0.0362www P2LCworld cn 2T(2) I1N

20、zk 75o Czk 75o C58.8 z* 0.0729u *kk 75o C2420Uz1N1N3Irru *1N k 75o C k 75o C r * 0.008kak 75o CUz1N1NI1N xkxku * x* 0.0724krKUz1N1NI1N zk 75o Cu (%) 100(%) z *100(%) 7.29(%)kK 75o CU1NI1N rk 75o Cu (%) 100(%) r *100(%) 0.8(%)kaK 75o CU1NI1N xku (%) 100(%) x* 100(%) 7.24(%)krKU1N仍, 1(3) cos2 1sin2 0u

21、 (r cos x sin ) 1 0.008 1 0.008*k2k2U 2 (1 u)U 2 N (1 0.008) 11 10.912kV cos2 0.8(2 0)sin2 0.6u (r cos x sin ) 1 (0.008 0.8 0.0724 0.6) 0.04984*k2k2U 2 (1 u)U 2 N (1 0.04984) 11 10.452kV cos2 0.8(2 0)sin2 0.6u (r cos x sin ) 1 (0.008 0.8 0.0724 0.6) 0.03704*k2k2U 2 (1 u)U 2 N (1 0.03704) 11 11.407kV

22、20000 w1ww0P3LCworld cnS N 157.5AI1N220 103U1N3(4)仍P I 2 r 157.52 6.448 159.9507kWKN1NK 75o CP 2 P (1 0KN) 100(%)S cos P P2N20KN47 12 159.9507 (1 ) 100(%) 98.7(%)1 20000 0.8 47 12 159.950747 0.542m159.9507(5) ,2P0 (1 ) 100(%)max S cos 2Pm N22 470 (1 ) 100(%) 99(%)0.542 20000 0.8 2 4.7/U 220 /11kVU1N

23、2 N32-26 S =20000kVA f =50 NN傼U0=11kVI0=45.4AP0=47WP0PKN傼儈Uk=9.24kVIk=157.5APk=129W傼 150C rk2r r k2,121儈T23仍cos2 1cos2 0.8(2 0) cos2 0.8(2 0) cos2 0.8(20) 4仍5 cos2 0.8(20) 11103U 0 242.29zmI45.410p47 103 0 22.8rm245.42I0 xz 2 r242.292 22.82 241.212mmm220 311 U1N 11.547KU 2 Nwww PLCworld cnr K 2r 11.

24、5472 22.8 3040儈mm儈 xm K 2 x 11.5472 241.21 32161.3mU9.24 103 K 58.67zkI157.5儈K129 103P k 5.2rk2157.5I儈kx z 2 r58.67 2 5.22 58.442儈kkk235 75 r 235 75 5.2 6.448rk 75o C235 15k235 15 75o C r xk6.448 58.44 58.82 75o C zk 75o C222ok 75 Crok 75 C 6.448 3.224r r 1222T 58.44 29.22k22T(220 103) 2U 2U24203 1N

25、 1Nz1N20000 103I1NSN3r 3040*r m 1N 3.77m2420z3x32161.3*x m1N 39.87m2420z3 rk 75o C6.448 0.008r *k 75o C2420z1N3xk58.44x* 0.0724k2420z1N3r * 0.008 0.004k 75o Cr * r * 1222T*k20.0724 0.03622T(2) I1N zk 75o Czk 75o C ww5w8P.L8Cworld 0cn.0729u * z*kk 75o C2420Uz1N1N3I1N rk 75o C rk 75o Cu * r * 0.008kak

26、 75o CUz1N1Nu *I1N xkxk x* 0.0724krKUz1N1NI1N zk 75o Cu (%) 100(%) z *100(%) 7.29(%)kK 75o CU1NI1N rk 75o Cu (%) 100(%) r *100(%) 0.8(%)kaK 75o CU1NI1N xku (%) 100(%) x* 100(%) 7.24(%)krKU1N(3)仍, 1 cos2 1sin2 0u (r cos x sin ) 1 0.008 1 0.008*k2k2U 2 (1 u)U 2 N (1 0.008) 11 10.912kV cos2 0.8(2 0)sin

27、2 0.6u (r cos x sin ) 1 (0.008 0.8 0.0724 0.6) 0.04984*k2k2U 2 (1 u)U 2 N (1 0.04984) 11 10.452kV cos2 0.8(2 0)sin2 0.6u (r cos x sin ) 1 (0.008 0.8 0.0724 0.6) 0.03704*k2k2U 2 (1 u)U 2 N (1 0.03704) 11 11.407kV20000 103S N 157.5AI1N220 103U1N3(4) 仍P I 2 r 157.52 6.448 159.9507kWwww PLCworld cnKN1NK

28、 75o CP 2 P (1 0KN) 100(%)S cos P P2N20KN47 12 159.9507 (1 ) 100(%) 98.7(%)1 20000 0.8 47 12 159.950747 0.542m159.9507(5) ,2P0 (1 ) 100(%)max S cos 2Pm N22 470 (1 ) 100(%) 99(%)0.542 20000 0.8 2 4.7/U 2 N 60 / 6.3kV fN=50 U1N2-27 SN=1000kVA傼U0=6300kVI0=19.1AP0=5000W傼儈Uk=3240kVIk=15.15APk=14000W1 1 T

29、2 2 cos2 0.8(20) 3 3P0PKN cos2 0.8(20) 4 4SN 1000I 16.67 A1NU1N601SN 1000I 158.73A2 NU6.32 N111Z * 8.31mI19.1158.73I *0I02 NP0S5P* 0 N 1000 0.345r *mI19.1(I * )22(158.73)2()0I02 Nx*Z *2 r *2 8.3mmm 3240 16.67 3565V Uk I1NUkNI15.15k( I1N ) 216.67 ) 2P P 16.95kW14(15.15kNKIk UkN3565 U * 0.0594Z *kkNU6

30、0000www PLCworld cn1NPkN P* 16.95 0.01695r *kkNS1000Nx*Z *2 r *2 0.05693kkk1 r * r 0.0083r *12k2 0.0285*k2 Z * 0.0594U *U % 5.94%kkk r * 0.01695U *U% 1.695%kakkaU % 5.693%U * x* 0.056932krkrk3u (r cos x sin *) 1(0.01695 0.8 0.05693 0.6) 0.0478k2k2P 2 P (1 0KN) 100(%)S cos P P2N205 12 16.95KN (1 ) 10

31、0(%) 97.32(%)11000 0.8 5 12 16.95 0.543m4,2P0 (1 ) 100(%) S cos 2Pmaxm N202 5 (1 ) 100(%) 97.75(%)0.543 1000 0.8 2 5 6.3 / 0.4kV YynY/虽嵌PkN=2250W2-28 S-100/6.3 U1N/U 2 NI0%=7%P0=600Wuk%=4.5%1儈2仍 0.875 j0.438Z *L4.5100z* U * 0.045kk1PkNr * P* 0.0225kkNSNx*1Z *2 r*2 0.039www PLCworld cnkkk1 14.28Z *mI

32、 *70 100P0S0.6P*r * 0 N 1000 1.225m(7(I * ) 2(7 /100)2)20100 x*Z *2 r *2 14.24mmm2 35 / 6kV YdY/傼儈U1N/ U 2 N2-29SN=5600kVAU1k=2610VIk=92.3APk=53kW U1=U1N I2=I2N仍 U2=U2N2 儈UK2160 UK 3 3 13.51zKII92.3KK儈516.95P0PKNPK353 103P 3r 2.074 K KI 2I 292.32KK儈x r 2 13.512 2.074 2 13.35z 2KKK仈 1 u 0 ,u (r cos x

33、* sin ) 0*K2K2r cos x* sin *K2K2rkr *zr2.074tg K 1N K 2xx*x13.35KKKz1N tg 1 ( 2.074) 8.83o213.35 3-1 儈www PLCworld cn 3-23-2 俆儈 12 II0儈 II6儈 II0 3-33-3儈俆儈儈 12 12 6 6 3-4 Yyn0YN, y0,Yy0Yd11 YN d11 Yyn0YN, y0 Yy0 Yd11 YNd11Yyn0YN,y0Y,y0 ABCABCOABC abcabcabc0 BCbcwww PLCworld cnA a虽始G廉廉虽箱始G廉廉OABABCCB C

34、abccabbcAa情媒担 AAABCBCBCABC accbab BBCCcAaAacbbY, d9Y, y4www PLCworld cn善身器善过器BBCCbAaAabcD,d2cD,d4善邻器善G器情媒措 照虽属虽虽G善虽属器虽始y善虽属虽器 照G属 磁 U1NU1N3U1NKU 2 NU 2 NU 2 N3 照始y U1N U1NU1N 3KU 2 NU 2 N3U 2 N虽始G U1N U1N U1N 3KU 2 NU 2 NU 2 N3虽始y U1N U1NKU 2 NU 2 N照始G 情媒提 虽y必善y属虽媒必器虽始G担善虽属媒担器照始y廉善属虽媒廉器 虽始y必虽始G担照始y廉

35、AAAAABBBCCBCBCC babcca cbaabcbca www PLCworld cn4-1 * * * 1U1U1 KK K K U 1 U 1K K I CZKZK K 2 300 E2 2E2 sin15o 0.52E2 52% 3 52%=90% * 11 : : , z *z * KK 4-2 Yd11(Y/媒廉廉器 照始y廉廉善属虽媒廉廉器 4-3 4-22 35 35/3 B Yy10 Dd10 10.5KV 35KV 303KV 10.5KV 303KV 35KV 60, B3 10 4-41100KVA3000/230VUkI=155VIKI=34.5APKI=10

36、00W2100KVA3000/230VUkII=201VIKII=30.5APKII=1300W3200KVA3000/230VUkIII=138VIKIII=61.2APKIII=1580W4300KVA3000/230VUkIV=172VIKIV=96.2APKIV=3100W K=3000/230 UK155 4.493zKI34.5Kwww PLCworld cn PK1000 0.84rKI 234.52Kxz 2 r 2 4.4932 0.84 2 4.4138KKKU 230002U NI NII NISNI 90zNI100 103 4.493 0.05zKz *Kz90NI

37、tg 1 ( xK ) 79.22oKrK U KII201 6.59zKI30.5:KIIPKII I 21300r 1.3975KII30.52KIIxz 2 r 26.592 1.39752 6.44KIIKIIKIIU 2U30002z 90100 103ISz *zKII 6.59 0.0732KIIz90 tg 1 ( xKII ) 77.76oKIIrKII U KIII138 2.2549zKIIII61.2III.KIIIPKIII1580r 0.42185K IIII 261.22KIIIx r 22.2549 2 0.42185 2 2.21509z 2K IIIKIII

38、KIIIU 230002U I I 45zI200 103ISIIzKIII 2.2549 0.05z *KIIIz45I tg 1 ( xKIII ) tg 1 ( 2.2w1w5w0P9LC)worl7d c9n.22oK IIIr0.42185KIII U KIV172 1.788zK IVI96.2的荷KIVPKIV3100r 0.335KIVI 296.22KIVxz 2 r 2 1.7882 0.3352 1.7563K IVKIVKIVU 230002U NIV NIVI NIVSNIV 30zNIV300 103zKIV 1.788 0.0596z*KIVz30IVN tg 1

39、 ( xKIV ) tg1.7563) 79.2o1(0.335KIVrKIV z*, z* KIKIIIKIKIII 47 UNIKz KU NI KzKz N1I *KIIzz*z* K NNKK5-1 1 n1亪 2” ,A.n1.nwww PLCworld cnTem.CB (3) ” 亪Tem傡 5-2 仈 n n1 nn1 n=n1” 身 过必 必 NNE 2.ia. . . .E 2n1.n. .2.1I 2.I 2必e2SS5-3 “” n n1 n= n1 www PLCworld cnnn1 5-4 1 1 s n1 n n1-nn1 s n1 nn1 n0n n1 sn0

40、 sn s1;+每s每廉 廉每s每嵌 嵌每s每媒 5-5 儈 5-9 傡 nn1 n-n1, e2 ”,亪 N U 1200 V W i2 e2 Tem”s n1 n 0n1 n1 仾 nn1NU.n1.e2(i2)nTemVWS5-6仍380/220VY/ 必必嵌荷 情旋嵌荷 虽 必必嵌荷 花 必必嵌荷 的模花属Z 箱 cosN 素箱 高箱cosN 素箱高箱素箱cosN PN3U I cos N www PLCworld cn 箱 花首 的首 3UY , Il 3I UlY担媒提 担媒廉嵌 亪 亪 箱联 箱 联 ,()” 亪 亪”V1.V2NW2.U2Tem (n)U1. W1S5-8AB

41、If 亪 ” TemIfAIf+U1.V2+W2.Tem n_. .W1CB. V1_U25-9 =4.5 Y/380/220 cos N1 Y 仍 0.8 N 0.8 nN 1450 /2 n1 P3 仍 sN (1)Y UN=380Vwww 4PLC5wor1ld0cnP3 N 10.68 AIN3U N cos N N3 380 0.8 0.8 UN=220V4.5 103P N 18.45 AIN3Ucos 3 220 0.8 0.8NN N 60 fn nN1p(2) 60 50 2.07p 60 fnN1450 p模必 60 50 1500r / min 60 fn1p2s n1

42、nN 1500 1450 0.0333n11500(3)仍5-10 仁 f=50 仍 sN =0.041 仍nN 2 仍 60 50 750r / min 60 fn1p4(1) nN (1 s)n1 (1 0.04) 750 720r / min仍s n1 n 1.n1(2) 6-1 Z=362P=4y=72a=21 600 2 p 3600 2 3600 200Z361Z36q 32 pm4 3模必嵌嵌 q模情 措嵌嵌 身亪源媒Z媒激媒X媒烈媒虽密YA363518ww PLCworl3214523C1362431127253081192629102728XB身17

43、192123252729313335善必器 y模提 必身模必 过 6-2 FRm , F Rm Rmwww PLCworld cn F 6-3 1 Et(yt) Et(y=器善器Et ( y )k yEt ( y ) 状q善q每廉器E1)k qE1) 状q善q模廉器检 Et ( y ) E1) E Et ( y )磁y 磁q 1) 始 6-4仁f (1) 仁60仁 f p n p n 2 3Ec=2.22f Ec 仁 f f 6-5 仁 (1)仁 仈仁(2)E 4.44 fNK w (3) 状仁 f 箱 磁著 箱磁w f措媒措 儈 E 4.44 f NK y Kq 磁y 磁q 1y 风y模嵌始

44、4 y 5 担 密善身器 担 担 风y 嵌密普担风y情模媒嵌密担旋旋始 风y担模嵌始 风y提模嵌密担旋旋 q模必始 风q嵌密普措措始风q情模嵌密提嵌提始 风q担模嵌密必担普始 风q提模嵌密必担普www PLCworld cn善过器 ee1e2NNNSSSy=4 y 5善身器善过器措媒提 虽 仈 情 情 儈 情6-8 仍 3000 3060 /仁3060 1.02仈仈儈(儈 3000)f 601 1仁fn(p=c),仁 1.02 E 4.44 fNK w 02Ef(Nkw嵌模烈器始嵌必3 3y 7 96-9 4 Z=36 2a=1 NC=201 =7.510-3 世 36 9Z2 p4 y 7

45、7 9 799Z36q www3PLCworld cn2 pm4 3p 3600 2 3600 2001Z36 1 y 7 20 140001400K sin 1 sin 0.94y122q3 200sinsinK 2 2 0.96q12002q sin23 sinN 2 pqNc 4 3 20 2402a11 4.44 fNK y1 Kq11E1 4.44 50 240 0.94 0.96 7.5 103 360.6V6-10 2P=2n=3000 /Z=60 N=20fN=50 1 =1.505 世1 12 2仁 5 y 1 3000 50HZf 6060(1)仁 60 30Z2 p2Z6

46、0q 102 pm2 3p Z000 1K y1q10 60sin 1sinK 2 2 0.9553q1602q sin 110 sin2Kw1 K y1 Kq1 1ww0w.P9L5C5w3orldcn0.9553 4.44 fNKw11E1 4.44 50 20 0.9553 1.505 6383.5Vy 1 5 1 4 55(2) y 4 1800 144 01151440K sin 1 sin 0.951y122 4.44 fNK y1 Kq11E1 4.44 50 20 0.951 0.9553 1.505 6070.7V6-11 仁F 0.9 NKw1 Im1p N Kw1 p I

47、 NKw1 p I 仁 仁6-12 F 1.35 NKw1 Im1p 60 fn1p仁 f p p f 6-13 50Hz 60Hz 60 1.2 仈仈仁 50www PLCworld cn仈仁 n1 仁 1.2 6-14 6-17 50Hz 60 fp仁 俆 6-15 6-18 亪 a b 亪 c d e 亪 f 亪 Im cost, iB Im sin t 6-16 iAF 0.9 NKw1 Impf Fcos t cos xA1m1f Fsin t cos( x ) Fsin t sinxB1m1m12 x xcos t cos t sin FFsinB 1m 1m 1 x x x )

48、F cos t cossin t sin t Fcos(m 1 m 1俆www PLCworld cnIBIAt1t2t3t4t5.YYX.AAXt1Bt2BYYYt3AXAXAt4Xt5. BBB iA iBy 5 66-17 2P=6Z=36 N=72 20A Z36q 22 pm6 3p 3600 3 3600 3001Z36 y 5 1800 1500161500K sin 1 sin 0.966y122q2 300sinsinK 2 2 0.9662q13002q sin2 sinKw1 K y1 Kq1 0.966 0.966 0.933www PLCworld cnF 1.35

49、NKW 1 I 1.35 72 0.933 20 604.6 / m1p3 60 50 1000r / min 60 fn1p36-18 ia 141sin 314t 141sin(314t 120 ) 141sin(314t 1200 )0ibi1 cia 141sin 314t 141sin 314t)ibi 02 cia 141sin 314t 70.4sin(314t 60 ) 122sin(314t 300 )0ib i3 c 1iAiBiC A-B-C2 2IaIAAAA iC=0,W AB iA= 媒iB AB b (4)iAiBiC A-C-B-A 7-1 ()儈 儈 U1-E

50、1-0I0 I 0 N1 0R0 I0Rmm N1 Rmwww PLCworld cn7-2 儈1.ab(c)r1x1r2x2r1x1I Irm10U1xma(b)r1x1r2属sNx2I1I 2rmI0U1xmcx x arctan 121cosr r x x rr 1212 1 1 12I 1st I o2stU 1 arctan x1 xm1r rx x r rcosm 1 1 1m1m1r 2 jx 2srm+jxmNx x arctan 121r2r x x r 2sr121 cos1 1sN12s=1 x2s=sx2 cos2 cos1 I1=I0 cos1 r 2() cos1

51、swww PLCworld cn7-3仁仁 仁 f1仁 f2=s f1 n1 n1-n n2 sn1 n2 n n1 n) n1 0 (n27-4 Tem(TL)s n1 n sE2 )n1( E2 s n I2 F2 F2 F1L F0 I1 7-5 I1 I 0 I 1L 1 1 I02 2 1 s r 2s ()1 s r 2s7-6 I 2 1 s r 22s.www PLCworld cn7-7 r 2 2m11sTemr 2f(r 2 )2 (x x )21 112s Tem U1 仁 f1 m1 p r1 r2x1x2 s U1f1 s m1pr1r2x1x27-8仍 TmaxT

52、st1TemTmI1I2s T U 2T 1 sm U1 ,emmTLTmTem-s 1 3 2 Tem TL a sa1230s骨 s过 s身s1b a1, TmTL( 2) b Tmax TmU12Tst TstU12U1 04.44 fN K0 1w1联 U1 Tem sE2sE2 rII 2s2sr 2 (sx) 2I2 22sx必概概鼠必始2I1 I2 F2 F1L=F2 I1L U1 0I0 I1L I0 I1 U1 I1I2 7-92 r mT 11 22f (r r )2 (x x ) 2 st 112122m4f r (x x )2 T11maxr 2www PLCworld

53、 cn1 1112 Tst Tmax 7-10 123仁 50Hz 60Hzr 2smr 2 (x x ) 2 Tts Tmax 仈112r r r 1 2 Tmax Tmax 2 sm1Tst 2 r 2 I2 cos2 I cosI 2 2a2x 2 2 TmaxTst :仈3仁 f1 TmaxTst :仈7-11 啐sNcos1 1I1NsmTmaxTst r2 Tem-s 1TemTmax P T 2.仍,1sN asa bsb2cos1 cos1 情N s pcu 2 sPem I1 pmec s n 1N I1N cosNN P2 cosN N I1N 4I1N 5sm smr2w

54、ww PLCworld cnr 6Tmax Tmax 2 7Tst 7-12 50Hz380 60Hz380 12345仍 Tem21仈仈仁仁 Tem-n 12.ab 2fLm n(1) xmnanb0S U1I0 xm I0 60 f1n (1 s )n1仍 nnp(2), a bNN1N(3) 7-9 仈(4) 7-9 仈(5)儈7-13 U1I 0 N1 00I R4.44 fN KR1Rm I0 m (N1 )1w1m0N 2Rmx 2f23仈 7-9 7-14仍=28 UN=380 f1=50HznN=950 /仍cos1 0.88 pcu1+pFe=2.2 pmec=1.1 pad

55、=0仍 su2NI1 f2 60 fn nN1pwww PLCworld cnfp 3. p 3nN 60 50 1000r / min 60 fn1p3 n1 n 1000 950 0.05sNn1000仍1 PNpmec 28 1.1 29.1kW Pmecp cu 2s N1 Pmecs NsN0.05p 29.1 1.532kWPcu 21 smec1 0.05NP1 PN pmec pcu 2 pFe pcu1 28 1.1 1.532 2.2 32.832kW28 100% P1100% 85.3%32.832P132.832I 56.68A1N3Ucos3 380 0.88N1

56、sN f1 0.05 50 2.5HZ仁 f 27-15 4 仍=55 f1=50Hz6.32 pcu1=341 pcu2=237.5 pFe=167.5 pmec=45 pad=29 P2 P1 ( pad pmec pcu 2 pFe pcu1 ) 6.32 (0.029 0.045 0.2375 0.1675 0.341) 5.5kW 100% 5.5 100% 87.03%P16.32 P2 padpmec pcu 2 5.5 0.029 0.045 0.2375 5.8115kWPempcu 2 0.2375 0.041s www PLCworld cnPem5.8115n (1 s)n (1 s) 60 f1 (1 0.041) 60 50 1438.5r / min1p2 pad 0.045 0.029 0.074kW p0pmecT 9550 p00.074 9550 0.49Nm0n1438.5T 9550 P25.5 9550 36.51Nm2n1438.5T 9550 Pem 9550 5.8115 37Nmemn15001 T2 T0 36.51 0.49 37 NmTem 8-1 啐仍 (1)n=0,儈(n1)仁E2I 2x 2r 222価善器善仍 担